WO2021056135A1 - Method for transmitting uplink control information and terminal device - Google Patents

Abstract

Embodiments of the present application relate to a method for transmitting uplink control information and a terminal device. The method comprises: the terminal device determines multiplexing modes of a first hybrid automatic repeat request-acknowledge (HARQ-ACK) and a second HARQ-ACK in a target timeslot, the first HARQ-ACK and the second HARQ-ACK being configured to be transmitted in the target timeslot; and the terminal device transmits, according to the multiplexing modes, the first HARQ-ACK and/or the second HARQ-ACK in the target timeslot. According to the method for transmitting uplink control information and the terminal device in the embodiments of the present application, transmission of different HARQ-ACKs in a same timeslot can be effectively achieved.

Description

Method and terminal equipment for transmitting uplink control information Technical field

This application relates to the field of communications, and in particular to a method and terminal equipment for transmitting uplink control information.

Background technique

The New Radio (NR) system supports downlink and uplink non-coherent transmission based on multiple transmission points/reception points (Transmission/Reception Points, TRP). The Hybrid Automatic Repeat Request-Acknowledge (HARQ-ACK) corresponding to the Physical Downlink Shared Channel (PDSCH) from different TRPs may be scheduled for transmission in the same time slot. At this time, in this time slot, how the terminal device transmits HARQ-ACKs from different TRPs has not yet been clearly defined.

Summary of the invention

The embodiments of the present application provide a method and terminal equipment for transmitting uplink control information, which can effectively implement the transmission of different HARQ-ACKs in the same time slot.

In a first aspect, a method for transmitting uplink control information is provided, and the method includes:

The terminal device determines the multiplexing mode of the first hybrid automatic repeat request-affirmative confirmation HARQ-ACK and the second HARQ-ACK in the target time slot, wherein the first HARQ-ACK and the second HARQ-ACK are Configured to transmit in the target time slot;

The terminal device transmits the first HARQ-ACK and/or the second HARQ-ACK in the target time slot according to the multiplexing mode.

In a second aspect, a terminal device is provided, including:

The processing unit is used to determine the multiplexing mode of the first hybrid automatic repeat request-affirmative HARQ-ACK and the second HARQ-ACK in the target time slot, wherein the first HARQ-ACK and the second HARQ -ACK is configured to be transmitted in the target time slot;

The communication unit is configured to transmit the first HARQ-ACK and/or the second HARQ-ACK in the target time slot according to the multiplexing mode.

In a third aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation manners.

In a fourth aspect, a device is provided to implement any one of the foregoing first aspect or the method in each of its implementation manners.

Specifically, the device includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first aspects or the method in each implementation manner thereof.

Optionally, the device may be a chip.

In a fifth aspect, a computer-readable storage medium is provided for storing a computer program that enables a computer to execute any aspect of the above-mentioned first aspect or the method in each implementation manner thereof.

In a sixth aspect, a computer program product is provided, including computer program instructions, which cause a computer to execute any one of the above-mentioned aspects of the first aspect or the method in each implementation manner thereof.

In a seventh aspect, a computer program is provided, which when running on a computer, causes the computer to execute any one of the above-mentioned aspects of the first aspect or the method in each of its implementation manners.

In the above technical solution, when different HARQ-ACKs are transmitted in the same time slot, the terminal device can determine the multiplexing mode of different HARQ-ACKs in the same time slot, and can determine the multiplexing mode of different HARQ-ACKs according to the multiplexing mode. The time domain resources used for transmission in this time slot can effectively realize the transmission of different HARQ-ACKs in the same time slot.

Description of the drawings

Fig. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application.

Figure 2 is a schematic diagram of a PUCCH resource configuration method.

Fig. 3 is a schematic diagram of multiple PDCCH scheduling multiple TRP downlink non-coherent transmission.

Figure 4 is a schematic diagram of a single PDCCH scheduling multiple TRPs for downlink non-coherent transmission.

Fig. 5 is a schematic diagram of transmitting uplink control information according to an embodiment of the present application.

Fig. 6 is a schematic diagram of a time domain resource unit according to an embodiment of the present application.

Figures 7-11 are schematic diagrams of transmitting the first HARQ-ACK and/or the second HARQ-ACK according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 13 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 14 is a schematic block diagram of a device according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE ( LTE-based access to unlicensed spectrum, LTE-U system, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, Universal Mobile Telecommunication System (UMTS), global interconnection Microwave access (Worldwide Interoperability for Microwave Access, WiMAX) communication systems, wireless local area networks (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, WiFi), next-generation communication systems or other communication systems, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.

The communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The "terminal equipment" used here includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment. A terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device. Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.

Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Figure 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.

Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 having a communication function and a terminal device 120. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiment of the present application.

It should also be understood that the communication system 100 shown in FIG. 1 may also be an NTN system, that is, the network device 110 in FIG. 1 may be a satellite.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article.

In order to facilitate the understanding of the embodiments of the present application, two terms are first introduced below.

1. Uplink control channel

In NR, uplink control information (UCI) can be carried in a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) for transmission. Among them, the PUCCH can be used to carry a scheduling request (Scheduling Request, SR), HARQ-ACK, or channel state information (Channel State Information, CSI). PUCCH can support 5 formats, among which, referring to Table 1, the duration of PUCCH format 0 and format 2 in the time domain only supports 1-2 Orthogonal Frequency Division Multiplexing (OFDM) symbols, which are called Short PUCCH. The duration of PUCCH format 1, PUCCH format 3, and PUCCH format 4 in the time domain can support 4-14 OFDM symbols, which is called a long PUCCH. Among them, PUCCH format 0 and format 1 can be used to carry UCI information of 1-2 bits, and PUCCH format 2, PUCCH format 3, and PUCCH format 4 can be used to carry UCI information of more than 2 bits. For long PUCCH, the maximum number of UCI bits that can be carried in PUCCH format 3 is greater than PUCCH format 4, and multi-user multiplexing is not supported. PUCCH format 4 can support code division multi-user multiplexing.

Table 1

There are two modes of PUCCH resource allocation: In one mode, a resource can be directly configured by Radio Resource Control (RRC) signaling, and a period and resource offset can be configured for this resource at the same time. It will take effect periodically, and this allocation method can be called semi-static PUCCH resource allocation. In another way, one or more PUCCH resource sets can be configured by RRC signaling, and each set contains multiple PUCCH resources. After receiving the downlink scheduling signaling sent by the network device, the terminal device can use the downlink scheduling information according to the downlink scheduling signaling. The instruction in the command finds a certain PUCCH resource in a PUCCH resource set. This resource allocation method can be called dynamic PUCCH resource allocation. Among them, the OFDM symbols and frequency domain resources occupied by each PUCCH resource can be pre-configured by the network device, and the time slot where the PUCCH is sent is notified to the terminal device by the network device through Downlink Control Information (DCI) signaling. The terminal device can determine a PUCCH resource based on these two signalings.

In the latter way, as shown in Figure 2, the network device can configure 1-4 PUCCH resource sets through RRC signaling to carry UCIs of different load sizes. Among them, the first PUCCH resource set is only used to carry 1-2 bits of UCI, and may include 8-32 PUCCH resources, and the number of other PUCCH resources that can carry UCI is configured by high-level signaling. At the same time, in order to save PUCCH overhead, each PUCCH resource may be shared by PUCCH resource sets of multiple terminal devices. When the first PUCCH resource set is configured with 8 PUCCH resources, the terminal device can directly determine the PUCCH resource according to the 3-bit PUCCH resource indication information in the DCI used to schedule the PDSCH. If more than 8 PUCCH resources are configured, the terminal device can determine the PUCCH according to the formula before the RRC connection is established. For other PUCCH resource sets, each resource set can only be configured with 8 PUCCH resources at most, so the terminal device can indicate the used PUCCH resource through the aforementioned PUCCH resource indication information.

In order to determine the beam used for PUCCH transmission, RRC+Media Access Control (MAC) signaling is used in NR to indicate the beam used for UCI transmission on each PUCCH resource. Specifically, the network device may first configure N PUCCH spatial related information (PUCCH-spatialrelationinfo) through high-level signaling, and then determine the spatial related information corresponding to each PUCCH resource from the configured N spatial related information through MAC signaling. .

2. Downlink incoherent transmission

In the NR system, the downlink and uplink non-coherent transmission based on multiple TRPs is introduced. Among them, the backhaul connection between TRPs may be ideal or non-ideal. Under ideal backhaul, TRPs can exchange information quickly and dynamically. Under non-ideal backhaul, TRPs can only exchange information quasi-statically due to the large delay. In the downlink non-coherent transmission, multiple TRPs can use different control channels to independently schedule multiple PDSCH transmissions of a terminal device, or use the same control channel to schedule the transmission of different TRPs. Among them, different TRPs use different data. Transport layer.

For downlink transmissions scheduled with multiple PDCCHs, the scheduled PDSCHs can be transmitted in the same time slot or in different time slots. The terminal equipment needs to support simultaneous reception of PDCCH and PDSCH from different TRPs. When the terminal device feeds back HARQ-ACK and CSI, as shown in the left figure in Figure 3, it can feed back HARQ-ACK and CSI to different TRPs that transmit the corresponding PDSCH; or, as shown in the right figure in Figure 3, also Can be combined and reported to a TRP. The former can be used in ideal backhaul and non-ideal backhaul scenarios, and the latter can only be used in ideal backhaul scenarios. Among them, the DCI used to schedule PDSCH transmitted by different TRPs can be carried by different Control Resource Sets (CORESET), that is, multiple CORESETs are configured on the network side, and each TRP uses its own CORESET for scheduling. CORESET to distinguish different TRPs. For example, a network device can configure a CORESET group index for each CORESET, and different CORESET groups and indexes correspond to different TRPs. When the terminal device feeds back the CSI, it can feed back the CSI corresponding to each TRP. The CSI may include rank indication (Rank Indication, RI), precoding matrix indication (Precoding Matrix Indicator, PMI), and channel quality indicator (Channel Quality Indicator, CQI), etc., and may be used for scheduling of downlink transmissions of respective TRPs.

For the downlink transmission of multiple TRPs scheduled by a single PDCCH, as shown in FIG. 4, the same DCI can schedule multiple transmission layers (Layer) from different TRPs. Among them, the transmission layers from different TRPs can use demodulation reference signal (Demodulation Reference Signal, DMRS) ports in different code division multiplexing (CDM) groups, and use different transmission configuration indicators (Transmission Configuration Indicators, TCI) status. The network device can indicate the DMRS ports from different CDM groups and the corresponding TCI states of different CDM groups in one DCI, so as to support different DMRS ports to use different beams for transmission. In this case, HARQ-ACK feedback and CSI reporting can reuse the mechanisms in the existing protocol. This solution is suitable for ideal backhaul scenarios.

At present, the HARQ-ACK corresponding to PDSCHs from different TRPs may be called to be transmitted in the same time slot. At this time, the terminal device cannot determine whether to transmit HARQ-ACKs corresponding to PDSCHs from different TRPs on different time domain resources, or to use multiplexing on the same time domain resources to transmit PDSCHs from different TRPs at the same time. HARQ-ACK. In addition, the terminal device cannot determine the time domain resources used to transmit the HARQ-ACK corresponding to the PDSCHs from different TRPs.

In view of this, the embodiment of the present application proposes a method for transmitting uplink control information, which can effectively implement the transmission of different HARQ-ACKs in the same time slot.

FIG. 5 is a schematic flowchart of a method 200 for transmitting uplink control information according to an embodiment of the present application. The method described in FIG. 5 may be executed by a terminal device, and the terminal device may be, for example, the terminal device 120 shown in FIG. 1.

As shown in FIG. 5, the method 200 may include at least part of the following content.

In 210, the terminal device determines the multiplexing mode of the first HARQ-ACK and the second HARQ-ACK in the target time slot, where the first HARQ-ACK and the second HARQ-ACK are configured to be transmitted in the target time slot .

In 220, the terminal device transmits the first HARQ-ACK and the second HARQ-ACK in the target time slot according to the multiplexing mode.

Among them, the multiplexing mode may include joint transmission and independent transmission, and independent transmission may also be referred to as separate transmission.

It should be understood that the term "and/or" in this text is only an association relationship describing the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist. , There are three cases of B alone.

Optionally, the target time slot includes at least one time domain resource unit. For example, the target time slot may include 2 time domain resource units. As shown in FIG. 6, the target time slot includes 2 time domain resource units, namely time domain resource unit 1 and time domain resource unit 2.

Optionally, different time domain resource units in the at least one time domain resource unit occupy different OFDM symbols, and the OFDM symbols occupied by different time domain resource units do not overlap.

Wherein, the time domain resource unit is a time domain resource unit used to transmit PUCCH. Optionally, the terminal device can only transmit at most one PUCCH in each time domain resource unit. Each time domain resource unit may include at least one PUCCH resource. Exemplarily, each time domain resource unit may include one PUCCH resource set, and one PUCCH resource set may include L PUCCH resources. For example, L can be equal to 8 or 16. In an implementation manner, if the terminal device is configured to transmit PUCCH on one time domain resource unit, and the time domain resource unit includes multiple PUCCH resources, the terminal device can only transmit PUCCH on one of the PUCCH resources.

Each time domain resource unit may include N OFDM symbols, and N is greater than or equal to 1. As an example, the value of N may be specified by the protocol or pre-configured on the terminal device by the network device. For example, the network device can configure the number of OFDM symbols of each time domain resource unit through high-level signaling or DCI signaling. Alternatively, the network device may use the N OFDM symbols occupied by one PUCCH resource set as a time domain resource unit, where the number of OFDM symbols occupied by one PUCCH resource set may be configured by the network device to the terminal device through high-level signaling.

As another example, the value of N may be pre-appointed by the terminal device and the network device. For example, the terminal device and the network device may pre-appoint N to be fixed to 2.

As another example, the terminal device may determine the value of N according to the number of OFDM symbols used for PUCCH transmission in the target time slot. For example, if there are M OFDM symbols in the target time slot that can be used for PUCCH transmission, and the number of time domain resource units in the target time slot configured by the network device is m, then the number of OFDM symbols occupied by each time domain resource unit

It should be understood that the embodiment of the present application does not limit the name of the time domain resource unit, that is, the time domain resource unit may also be called other names, such as mini-slot or sub-slot. Or PUCCH time domain resource group, etc.

Before the terminal device determines the multiplexing mode of the first HARQ-ACK and the second HARQ-ACK in the target time slot, the method 200 may further include: the terminal device receives the first DCI and the second DCI sent by the network device, where the first One DCI is used to schedule the first PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule the second PDSCH corresponding to the second HARQ-ACK.

Specifically, the terminal device may detect the first DCI in the first CORESET and the second DCI in the second CORESET, and the CORESET group indexes of the first CORESET and the second CORESET are different. That is, the CORESET group index of the first CORESET where the first DCI is located is different from the CORESET group index of the second CORESET where the second DCI is located. It should be understood that since different CORESET group indexes can be associated with different TRPs, different CORESET group indexes indicate that the first DCI and the second DCI are from different TRPs, and correspondingly, the first HARQ-ACK and the second HARQ-ACK also correspond to different TRPs.

Optionally, the network device may configure its own group index for each CORESET of the terminal device through high-level signaling. For example, the network device may configure an index (for example, the RRC parameter HigherLayerIndexPerCORESET) for each CORESET in the RRC configuration parameters used to configure the CORESET (for example, the RRC parameter ControlResourceSet). Among them, the index configured by the network device for each CORESET may be called the CORESET group index or other names.

Optionally, the CORESET group index configured by the network device for different CORESET may be the same or different, which is not specifically limited in the embodiment of the present application.

Optionally, CORESETs with the same CORESET group index may be referred to as a CORESET group. For example, the value of the CORESET group index can be 0 or 1, and the network device can indicate the CORESET group index of each CORESET through 1-bit signaling. It can be seen that this situation can support up to two CORESET groups.

Of course, the network device can indicate the CORESET group index of each CORESET through multiple bit signaling. For example, the network device indicates the CORESET group index of each CORESET through 2-bit signaling, and this situation can support up to four CORESET groups.

Since the first HARQ-ACK and the second HARQ-ACK correspond to different TRPs, in this way, the embodiment of the present application can effectively implement the transmission of HARQ-ACKs corresponding to different TRPs in the same time slot.

After receiving the first DCI and the second DCI, the terminal device may determine the time slot for transmitting the first HARQ-ACK according to the HARQ time slot indication information of the first DCI (also referred to as the timing information from PDSCH to HARQ-ACK), And determine the time slot used for transmitting the second HARQ-ACK according to the HARQ time slot indication information of the second DCI, if the time slot used to transmit the first HARQ-ACK is the same as the time slot used to transmit the second HARQ-ACK, Then the terminal device can determine that the first HARQ-ACK and the second HARQ-ACK are transmitted in the same time slot (that is, the target time slot).

After the terminal device determines that both the first HARQ-ACK and the second HARQ-ACK are transmitted in the target time slot, the terminal device can determine the multiplexing mode of the first HARQ-ACK and the second HARQ-ACK in the target time slot.

The following two embodiments will introduce in detail the multiplexing mode of the first HARQ-ACK and the second HARQ-ACK in the target time slot by the terminal device, and transmit the first HARQ-ACK in the target time slot according to the determined multiplexing mode. Implementation of ACK and/or second HARQ-ACK.

Example 1

The terminal device may determine the multiplexing mode according to the number of time domain resource units in the target time slot.

Optionally, the network device may send configuration information to the terminal device, and the configuration information includes the number of time domain resource units. Among them, the configuration information can be carried in higher layer signaling or DCI signaling.

Alternatively, the terminal device may determine the number of time domain resource units according to the number of OFDM symbols used for PUCCH transmission in the target time slot. For example, assuming that there are M OFDM symbols in the target time slot for PUCCH transmission, and the number of OFDM symbols occupied by each time domain resource unit is N, then the number of time domain resource units in the time slot is

For another example, suppose there are M OFDM symbols in the target time slot for PUCCH transmission, when M is less than or equal to the threshold, the number of time domain resource units in the target time slot is 1; when M is greater than the threshold, the target The number of time domain resource units in the time slot is 2. Wherein, the threshold value may be preset on the terminal device based on the protocol, or pre-configured by the network device to the terminal device.

When the number of time domain resource units is 1, the terminal device can determine that the multiplexing mode is joint transmission; when the number of time domain resource units is greater than 1, the terminal device can determine that the multiplexing mode is independent transmission. For example, if the target time slot contains only one time domain resource unit, the terminal device can transmit the first HARQ-ACK and the second HARQ-ACK in the target time slot by means of joint transmission; if the target time slot contains two time domains Resource unit, the terminal device can transmit the first HARQ-ACK and the second HARQ-ACK in the target time slot by means of independent transmission.

In the above technical solution, the network equipment can implicitly indicate the multiplexing mode through the number of time domain resource units in the target time slot, without additional signaling overhead, and can support the multiplexing mode of joint transmission and independent transmission at the same time.

Next, the terminal device can transmit the first HARQ-ACK and/or the second HARQ-ACK in the target time slot according to the determined multiplexing mode.

In an implementation manner, if the multiplexing mode is joint transmission, the terminal device may jointly transmit the first HARQ-ACK and the second HARQ-ACK in the target time slot. For example, the terminal device may concatenate or jointly code the first HARQ-ACK and the second HARQ-ACK, and then transmit them on the time domain resource unit in the target time slot.

Optionally, the terminal device may determine the concatenation sequence of the first HARQ-ACK and the second HARQ-ACK according to parameters such as the DCI reception time, the serving cell index, and the CORESET group index corresponding to the first HARQ-ACK and the second HARQ-ACK .

In another implementation manner, if the multiplexing mode is independent transmission, the terminal device may respectively transmit the first HARQ-ACK and the second HARQ-ACK on different time domain resource units in the target time slot.

Specifically, the terminal device may determine the first time domain resource unit in the target timeslot according to the CORESET group index corresponding to the first HARQ-ACK, and may determine the CORESET group index corresponding to the second HARQ-ACK to determine the target timeslot The second time domain resource unit. Then, the terminal device may transmit the first HARQ-ACK on the first time domain resource unit, and transmit the second HARQ-ACK on the second time domain resource unit.

Wherein, the first time domain resource unit and the second time domain resource unit do not overlap.

Optionally, the CORESET group index corresponding to the first HARQ-ACK may be the CORESET group index of the first CORESET where the first DCI is located, and the CORESET group index corresponding to the second HARQ-ACK is the CORESET group index of the second CORESET where the second DCI is located. Group index.

In a possible embodiment, if the CORESET group index corresponding to the first HARQ-ACK is k, the first time domain resource unit may be the (k+h)th time domain resource unit in the target time slot; When the CORESET group index corresponding to the second HARQ-ACK is s, the second time domain resource unit may be the (s+h)th time domain resource unit in the target time slot. Among them, k and s are integers greater than or equal to 0, and h is a non-negative integer. Preferably, h=1. In this way, each time domain resource unit in the target time slot can be fully utilized, thereby saving resource overhead.

In another possible embodiment, if the CORESET group index corresponding to the first HARQ-ACK is k, the first time domain resource unit may be the [(k+h)mod m]th time domain in the target time slot Resource unit; if the CORESET group index corresponding to the second HARQ-ACK is s, the second time domain resource unit may be the [(s+h)mod m]th time domain resource unit in the target time slot. Among them, m is the number of time domain resource units in the target time slot, k and s are integers greater than or equal to 0, and h is a non-negative integer.

Exemplarily, as shown in FIG. 7, the CORESET group index of the first CORESET where the first DCI is located is 0, and the CORESET group index of the second CORESET where the second DCI is located is 1, and the terminal device can pass through the PUCCH in the first DCI. The resource indicator (PUCCH Resource Indicator, PRI) is used to determine the PUCCH resource used to transmit the first HARQ-ACK from the target PUCCH resource set on the (0+1)th time domain resource unit in the target time slot, through the second DCI The PRI in the target time slot determines the PUCCH resource used for transmitting the second HARQ-ACK from the target PUCCH resource set on the (1+1)th time domain resource unit in the target time slot.

Alternatively, the terminal device may determine the first time domain resource unit in the target time slot according to the CORESET group index corresponding to the first HARQ-ACK, and among the multiple time domain resource units, except for the first time domain resource unit, the agreed The second HARQ-ACK is transmitted on the second time domain resource unit. For example, the target time slot includes two time domain resource units, and the second time domain resource unit is another time domain resource unit in addition to the first time domain resource unit. For another example, the second time domain resource unit is the next adjacent time domain resource unit of the first time domain resource unit among the multiple time domain resource units.

In the above technical solution, the PUCCH transmission resource is associated with the CORESET group index (associated with the TRP), and the terminal can determine the time domain resource unit used to transmit the HARQ-ACK of each TRP according to the CORESET group index, which not only guarantees different TRPs HARQ-ACK will not conflict, and no additional signaling overhead is required.

Example 2

The terminal device may determine the multiplexing mode of the first HARQ-ACK and the second HARQ-ACK in the target time slot according to the high-level signaling sent by the network device. For example, the network device can indicate whether the multiplexing mode is joint transmission or independent transmission through the RRC parameter.

After determining the first HARQ-ACK and the second HARQ-ACK, the terminal device can transmit the first HARQ-ACK and/or in the target timeslot according to the determined multiplexing mode and the number of time domain resource units in the target timeslot. Or the second HARQ-ACK.

According to the multiplexing mode and the number of time domain resource units in the target time slot, the terminal device can transmit the first HARQ-ACK and/or the second HARQ-ACK in the target time slot in at least one of the following five ways: These are described separately below.

Way 1

Referring to FIG. 8, if the multiplexing mode is joint transmission and only one time domain resource unit is included in the target time slot, the terminal device can jointly transmit the first HARQ-ACK and the second HARQ-ACK on the time domain resource unit.

Optionally, the terminal device may be in the time domain resource unit, on the PUCCH resource configured to transmit the first HARQ-ACK, or on the PUCCH resource configured to transmit the second HARQ-ACK, or on the network On the PUCCH resource indicated by the device for joint transmission, the first HARQ-ACK and the second HARQ-ACK are jointly transmitted.

Way 2

If the multiplexing mode is joint transmission and the target time slot includes multiple time domain resource units, the terminal device can determine the target DCI, and then determine from the multiple time domain resource units according to the CORESET group index of the CORESET where the target DCI is located After the third time domain resource unit, the terminal device may jointly transmit the first HARQ-ACK and the second HARQ-ACK in the third time domain resource unit.

Optionally, the target DCI may be the last DCI (last DCI) of the first DCI and the second DCI, or the target DCI may be the DCI pre-appointed by the terminal device and the network device in the first DCI and the second DCI, or, The target DCI may be the DCI indicated by the network device in the first DCI and the second DCI, or the target DCI may be the DCI randomly selected by the terminal device from the first DCI and the second DCI.

Optionally, the terminal device may determine the latest DCI in the first DCI and the second DCI according to at least one of the following parameters:

The CORESET group index of the first CORESET where the first DCI is located and the CORESET group index of the second CORESET where the second DCI is located;

Serving cell information of the serving cell where the first DCI is located and serving cell information of the serving cell where the second DCI is located;

Serving cell information of the serving cell where the first PDSCH is located and serving cell information of the serving cell where the second PDSCH is located;

The transmission sequence of the first DCI and the second DCI.

The information of the serving cell may include, but is not limited to, at least one of the following: the frequency and physical cell identity (Physical Cell Identity, PCI) of the serving cell, and the index of the serving cell.

As an example, the most recent DCI may be the DCI with the shortest transmission time among the first DCI and the second DCI, that is, the terminal device may use the DCI transmitted later in the first DCI and the second DCI as the most recent DCI. As shown in FIG. 9, the transmission time of the second DCI is later. Therefore, the second DCI is the latest DCI, and the terminal device uses the second time domain resource unit corresponding to CORESET group index 1 as the third time domain resource unit. If the transmission time of the first DCI and the second DCI are the same, the most recent DCI may be the DCI with a larger (or smaller) corresponding serving cell index in the first DCI and the second DCI. If the transmission time of the first DCI and the second DCI are the same, and the serving cell indexes corresponding to the first DCI and the second DCI are also the same, the most recent DCI can be the CORESET group index of the CORESET in the first DCI and the second DCI Larger (or smaller) DCI.

In an implementation manner, when the CORESET group index of the CORESET where the target DCI is located is n, the third time domain resource unit may be the (n+h) or [(n+h)mod m]th in the target time slot Time domain resource unit. Among them, m is the number of time domain resource units in the target time slot, n is an integer greater than or equal to 0, and h is a non-negative integer. Preferably, h=1.

In the above technical solution, the terminal device can determine the time domain resource unit used for joint transmission of the first HARQ-ACK and the second HARQ-ACK without additional signaling instructions. At the same time, the method based on the most recent DCI can also use the DCI transmitted later to update the PUCCH resource indicated by the previous DCI.

Way 3

If the multiplexing mode is joint transmission and the target time slot includes multiple time domain resource units, the terminal device may determine the time domain resource unit agreed with the network device as the fourth time domain resource unit, or the terminal device may The fourth time domain resource unit is randomly selected from the multiple time domain resource units. After that, the terminal device may jointly transmit the first HARQ-ACK and the second HARQ-ACK on the fourth time domain resource unit.

For example, the fourth time domain resource unit may be the first time domain resource unit (as shown in FIG. 10) or the last time domain resource unit among multiple time domain resource units, or it may be among multiple time domain resource units. All time-domain resource units in may also be the first half or the second half of the multiple time-domain resource units.

In mode 1 to mode 3, when the terminal device jointly transmits the first HARQ-ACK and the second HARQ-ACK, the first HARQ-ACK and the second HARQ-ACK may be concatenated or jointly coded, and then the first HARQ-ACK and the second HARQ-ACK may be cascaded or jointly coded, and then jointly transmitted. One HARQ-ACK and second HARQ-ACK.

Optionally, the terminal device may be based on the reception time of the first DCI and the second DCI, the serving cell index where the first DCI and the second DCI are located, the CORESET group index of the first CORESET where the first DCI is located, and the CORESET group index of the first CORESET where the first DCI is located, and the location of the second DCI Parameters such as the CORESET group index of the second CORESET determine the concatenation sequence of the first HARQ-ACK and the second HARQ-ACK.

Way 4

If the multiplexing mode is independent transmission and the target time slot includes multiple time domain resource units, in an implementation manner, the terminal device can determine the first HARQ-ACK corresponding to the CORESET group index in the target time slot. A time domain resource unit, and the second time domain resource unit in the target time slot is determined according to the CORESET group index corresponding to the second HARQ-ACK. Then, the terminal device may transmit the first HARQ-ACK on the first time domain resource unit, and transmit the second HARQ-ACK on the second time domain resource unit.

It should be understood that the specific implementation of the manner 4 can refer to the implementation manner of independent transmission in the multiplexing manner in Embodiment 1. For the sake of brevity, the details are not described here.

In another implementation manner, the terminal device may determine the first time domain resource unit in the target time slot according to the CORESET group index corresponding to the first HARQ-ACK, and divide the first time domain resource unit among the plurality of time domain resource units. The second HARQ-ACK is transmitted on the agreed second time domain resource unit outside the time domain resource unit. For example, the target time slot includes two time domain resource units, and the second time domain resource unit is another time domain resource unit in addition to the first time domain resource unit. For another example, the second time domain resource unit is the next adjacent time domain resource unit of the first time domain resource unit in the plurality of time domain resource units.

Similarly, the terminal device may determine the second time domain resource unit in the target time slot according to the CORESET group index corresponding to the second HARQ-ACK, and except for the second time domain resource unit among the plurality of time domain resource units The first HARQ-ACK is transmitted on the agreed first time domain resource unit.

Way 5

If the multiplexing mode is independent transmission and only one time domain resource unit is included in the target time slot, the terminal device can determine a target HARQ-ACK in the first HARQ-ACK and the second HARQ-ACK, and set it in the time domain. The target HARQ-ACK is transmitted on the resource unit.

In an implementation manner, the terminal device may determine the target HARQ-ACK according to the first PDSCH and the second PDSCH, and/or according to the first DCI and the second DCI.

Specifically, the terminal device may determine the target HARQ-ACK according to at least one of the following information:

a. The identification of the first CORESET where the first DCI is located and the identification of the second CORESET where the second DCI is located.

b. The CORESET group index of the first CORESET where the first DCI is located and the CORESET group index of the second CORESET where the second DCI is located. For example, the target HARQ-ACK may be the HARQ-ACK corresponding to the DCI with a lower CORESET group index. As shown in Figure 11, the CORESET group index of the first CORESET where the first DCI is located is 0, and the CORESET group index of the second CORESET where the second DCI is located is 1, and it can be seen that the CORESET of the first CORESET where the first DCI is located If the group index is low, the terminal device can determine that the target HARQ-ACK is the first HARQ-ACK, so that the terminal device can transmit only the first HARQ-ACK on the only time domain resource unit in the target time slot, but not the first HARQ-ACK. Two HARQ-ACK.

c. The identification of the search space where the first DCI is located and the identification of the search space where the second DCI is located. For example, the target HARQ-ACK may be the HARQ-ACK corresponding to the DCI with a lower identifier in the corresponding search space.

d. The index of the search space where the first DCI is located and the index of the search space where the second DCI is located.

e. The transmission sequence of the first DCI and the second DCI. For example, the target HARQ-ACK may be the HARQ-ACK corresponding to the DCI received later by the terminal device.

f. The format of the first DCI and the format of the second DCI. For example, the target HARQ-ACK may be HARQ-ACK corresponding to the DCI format of the DCI format 1_0.

g. Cyclic Redundancy Check (CRC) code scrambling mode of the first DCI and the second DCI. For example, the target HARQ-ACK may be the scrambling ID of the CRC code, the HARQ-ACK corresponding to the DCI of the Modulation and Coding Scheme-Cell Radio Network Temporary Identifier (Modulation and Coding Scheme-Cell-Radio Network Temporary Identifier, MCS-C-RNTI) .

h. The serving cell index of the serving cell where the first DCI is located. The serving cell index of the serving cell where the second DCI is located. For example, the target HARQ-ACK may be the HARQ-ACK corresponding to the DCI with a lower serving cell index.

i. The serving cell index of the serving cell where the first PDSCH is located and the serving cell index of the serving cell where the second PDSCH is located. For example, the target HARQ-ACK may be the HARQ-ACK corresponding to the PDSCH with a lower serving cell index.

j. The receiving order of the first PDSCH and the second PDSCH. For example, the target HARQ-ACK may be the HARQ-ACK corresponding to the PDSCH received later.

In the above technical solution, when the transmission resources of the PUCCH are insufficient, the terminal device can preferentially transmit the HARQ-ACK with a higher priority, thereby ensuring the transmission reliability of the high-priority service. Among them, the high-priority service may be, but is not limited to, an ultra-reliable low-latency communication (Ultra Reliable Low Latency Communication, URLLC) service.

In the above technical solution, the terminal equipment can determine to transmit HARQ-ACKs of different TRPs on different time domain resource units in a time slot according to the available resources in the target time slot, or multiplex and transmit different TRPs on the same time domain resource unit. HARQ-ACK. At the same time, through the way that the time domain resource unit is associated with the TRP, the terminal device does not require additional signaling overhead, and can determine the respective time domain resources for transmitting the PUCCH for different TRPs in the target time slot.

It should be understood that in the embodiments of the present application, "first", "second", "third" and "fourth" are only used to distinguish different objects, but do not limit the scope of the embodiments of the present application.

It should also be understood that the specific examples in the embodiments of the present application are only to help those skilled in the art to better understand the embodiments of the present invention, rather than limiting the scope of the embodiments of the present application.

In the embodiment of this application, when different HARQ-ACKs are transmitted in the same time slot, the terminal device can determine the multiplexing mode of different HARQ-ACKs in the same time slot, and can determine different HARQ-ACKs according to the multiplexing mode The time domain resources used for transmission in this time slot can effectively realize the transmission of different HARQ-ACKs in the same time slot.

Optionally, the embodiment of the present application also proposes another method 300 for transmitting uplink control information.

In 310, the terminal device determines the multiplexing mode of the first HARQ-ACK and the second HARQ-ACK in the target time slot, where the first HARQ-ACK and the second HARQ-ACK are configured to be transmitted in the target time slot .

In 320, the terminal device does not transmit the first HARQ-ACK and the second HARQ-ACK in the target time slot according to the multiplexing mode.

Specifically, if the multiplexing mode is independent transmission and only one time domain resource unit is included in the target time slot, the terminal device may not transmit the first HARQ-ACK and the second HARQ-ACK in the target time slot.

In other words, if the multiplexing mode is independent transmission, the terminal device does not expect only one time domain resource unit to be included in the target time slot. If this happens, the terminal device can consider it as a misconfiguration, so that it does not transmit any HARQ-ACK.

It should be understood that although the method 200 and the method 300 are described above, and the embodiment 1 and the embodiment 2 in the method 200 are described respectively, this does not mean that the method 200 and the method 300, and the embodiment 1 in the method 200 are described above. It is independent of Embodiment 2, and the description of each method and embodiment may refer to each other. For example, the related description in the method 200 may be applicable to the method 300.

The preferred embodiments of the present application are described in detail above with reference to the accompanying drawings. However, the present application is not limited to the specific details in the above-mentioned embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application. These simple variants all belong to the protection scope of this application.

For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described in this application. Explain separately.

For another example, various different implementations of this application can also be combined arbitrarily, as long as they do not violate the idea of this application, they should also be regarded as the content disclosed in this application.

It should be understood that in the various method embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not be implemented in this application. The implementation process of the example constitutes any limitation.

The method for transmitting uplink control information according to the embodiment of the present application is described in detail above. The communication device according to the embodiment of the present application will be described below with reference to FIG. 12 and FIG. 13. The technical features described in the method embodiment are applicable to the following device implementation example.

FIG. 12 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 12, the terminal device 400 includes:

The processing unit 410 is configured to determine the multiplexing mode of the first HARQ-ACK and the second HARQ-ACK in the target time slot, wherein the first HARQ-ACK and the second HARQ-ACK are configured to be in the target time slot. The target time slot is transmitted.

The communication unit 420 is configured to transmit the first HARQ-ACK and/or the second HARQ-ACK in the target time slot according to the multiplexing mode.

Optionally, in this embodiment of the present application, the processing unit 410 is specifically configured to: determine the multiplexing mode according to the number of time domain resource units in the target time slot, and the target time slot includes at least A time domain resource unit; or determine the multiplexing mode according to the high-level signaling sent by the network device.

Optionally, in this embodiment of the present application, the processing unit 410 is specifically configured to: if the number of time domain resource units is 1, determine that the multiplexing mode is joint transmission; if the number of time domain resource units is If the number is greater than 1, it is determined that the multiplexing mode is independent transmission.

Optionally, in this embodiment of the present application, the communication unit 420 is further configured to: receive configuration information sent by a network device, where the configuration information includes the number of time domain resource units; or

The processing unit 410 is further configured to determine the number of time domain resource units according to the number of orthogonal frequency division multiplexing OFDM symbols used for physical uplink control channel PUCCH transmission in the target time slot, wherein the The target slot includes at least one OFDM symbol used for PUCCH transmission.

Optionally, in the embodiment of the present application, the communication unit 420 is specifically configured to: if the multiplexing mode is joint transmission, jointly transmit the first HARQ-ACK and the first HARQ-ACK in the target time slot. Two HARQ-ACK; if the multiplexing mode is independent transmission, the first HARQ-ACK and the second HARQ-ACK are respectively transmitted on different time domain resource units in the target time slot.

Optionally, in the embodiment of the present application, the processing unit 410 is further configured to: determine the first time domain resource in the target time slot according to the control resource set CORESET group index corresponding to the first HARQ-ACK Unit; according to the CORESET group index corresponding to the second HARQ-ACK, determine the second time domain resource unit in the target time slot;

The communication unit 420 is specifically configured to: transmit the first HARQ-ACK in the first time domain resource unit, and transmit the second HARQ-ACK in the second time domain resource unit.

Optionally, in this embodiment of the present application, the communication unit 420 is specifically configured to: transmit all data in the target time slot according to the multiplexing mode and the number of time domain resource units in the target time slot. The first HARQ-ACK and/or the second HARQ-ACK.

Optionally, in the embodiment of the present application, the communication unit 420 is specifically configured to: if the multiplexing mode is joint transmission, and the number of time domain resource units is 1, the time domain resource unit is The first HARQ-ACK and the second HARQ-ACK are jointly transmitted.

Optionally, in the embodiment of the present application, the processing unit 410 is further configured to: if the multiplexing mode is joint transmission and the number of time domain resource units is multiple, determine the target DCI; The CORESET group index of the CORESET where the target DCI is located, and the third time domain resource unit is determined in the time domain resource unit;

The communication unit 420 is specifically configured to jointly transmit the first HARQ-ACK and the second HARQ-ACK in the third time domain resource unit.

Optionally, in the embodiment of the present application, the target DCI is the nearest DCI of the first DCI and the second DCI, or the target DCI is a pre-appointed DCI of the first DCI or the second DCI DCI; wherein, the first DCI is used to schedule a first physical downlink shared channel PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule a second PDSCH corresponding to the second HARQ-ACK.

Optionally, in the embodiment of the present application, the processing unit 410 is further configured to determine the most recent DCI among the first DCI and the second DCI according to at least one of the following parameters:

The CORESET group index of the CORESET where the first DCI is located and the CORESET group index of the CORESET where the second DCI is located;

The serving cell index of the serving cell where the first DCI is located and the serving cell index of the serving cell where the second DCI is located;

The serving cell index of the serving cell where the first PDSCH is located and the serving cell index of the serving cell where the second PDSCH is located;

The transmission sequence of the first DCI and the second DCI.

Optionally, in the embodiment of the present application, the processing unit 410 is specifically configured to: use the DCI with the closest transmission time among the first DCI and the second DCI as the latest DCI; or

If the transmission time of the first DCI and the second DCI are the same, use the DCI with the larger corresponding serving cell index in the first DCI and the second DCI as the latest DCI; or

If the transmission time of the first DCI and the second DCI are the same, and the serving cell indexes corresponding to the first DCI and the second DCI are also the same, the first DCI and the second DCI are The DCI with the larger index of the CORESET group of the CORESET is used as the nearest DCI.

Optionally, in the embodiment of the present application, when the CORESET group index of the CORESET where the target DCI is located is n, the third time domain resource unit is the (n+1)th time in the target time slot Domain resource unit.

Optionally, in the embodiment of the present application, the processing unit 410 is further configured to: if the multiplexing mode is joint transmission and the number of time domain resource units is multiple, the agreed time domain resource The unit is determined to be the fourth time domain resource unit;

The communication unit 420 is specifically configured to jointly transmit the first HARQ-ACK and the second HARQ-ACK in the fourth time domain resource unit.

Optionally, in the embodiment of the present application, the communication unit 420 is specifically configured to: perform concatenation or joint coding of the first HARQ-ACK and the second HARQ-ACK, and then perform the concatenation or joint coding in the target time slot Transmitting the first HARQ-ACK and the second HARQ-ACK in the.

Optionally, in the embodiment of the present application, the processing unit 410 is further configured to: if the multiplexing mode is independent transmission and the number of time domain resource units is multiple, according to the first HARQ- The CORESET group index corresponding to the ACK determines the first time domain resource unit in the target time slot; the second time domain resource unit in the target time slot is determined according to the CORESET group index corresponding to the second HARQ-ACK ；

The communication unit 420 is specifically configured to: transmit the first HARQ-ACK in the first time domain resource unit, and transmit the second HARQ-ACK in the second time domain resource unit.

Optionally, in the embodiment of the present application, the CORESET group index corresponding to the first HARQ-ACK is the CORESET group index of the first CORESET where the first DCI is located, and the CORESET group corresponding to the second HARQ-ACK The index is the CORESET group index of the second CORESET where the second DCI is located; wherein, the first DCI is used to schedule the first PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule the The second PDSCH corresponding to the second HARQ-ACK.

Optionally, in the embodiment of the present application, when the CORESET group index corresponding to the first HARQ-ACK is k, the first time domain resource unit is the (k+1)th in the target time slot Time domain resource unit; when the control resource set CORESET group index corresponding to the second HARQ-ACK is s, the second time domain resource unit is the (s+1)th time domain resource in the target time slot unit.

Optionally, in the embodiment of the present application, the processing unit 410 is further configured to: if the multiplexing mode is independent transmission, and the number of time domain resource units is 1, the first HARQ-ACK And determining a target HARQ-ACK in the second HARQ-ACK;

The communication unit 420 is specifically configured to transmit the target HARQ-ACK in the time domain resource unit.

Optionally, in the embodiment of the present application, the processing unit 410 is specifically configured to: according to the first PDSCH corresponding to the first HARQ-ACK and the second PDSCH corresponding to the second HARQ-ACK, or according to the Determine the target HARQ-ACK based on the first DCI used to schedule the first PDSCH and the second DCI used to schedule the second PDSCH.

Optionally, in this embodiment of the application, the processing unit 410 is specifically configured to determine the target HARQ-ACK according to at least one of the following information:

The ID of the CORESET where the first DCI is located and the ID of the CORESET where the second DCI is located;

The CORESET group index of the CORESET where the first DCI is located and the CORESET group index of the CORESET where the second DCI is located;

An identifier of the search space where the first DCI is located and an identifier of the search space where the second DCI is located;

The index of the search space where the first DCI is located and the index of the search space where the second DCI is located;

The transmission sequence of the first DCI and the second DCI;

The format of the first DCI and the format of the second DCI;

The cyclic redundancy check CRC code scrambling mode of the first DCI and the second DCI;

The serving cell index of the serving cell where the first DCI is located and the serving cell index of the serving cell where the second DCI is located;

The serving cell index of the serving cell where the first PDSCH is located and the serving cell index of the serving cell where the second PDSCH is located;

The receiving order of the first PDSCH and the second PDSCH.

Optionally, in this embodiment of the present application, the number of time domain resource units in the target time slot is two.

Optionally, in this embodiment of the present application, each time domain resource unit in the target time slot includes at least one PUCCH resource.

Optionally, in this embodiment of the present application, each time domain resource unit in the target time slot contains N OFDM symbols, and N is greater than or equal to 1, where the value of N is pre-configured by the network device For the terminal device; or the value of N is agreed upon in advance by the terminal device and the network device; or the value of N is used by the terminal device according to the target time slot The number of OFDM symbols transmitted by PUCCH is determined.

Optionally, in this embodiment of the present application, the CORESET group index of the CORESET where the first DCI is located is different from the CORESET group index of the CORESET where the second DCI is located;

The first DCI is used to schedule a first PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule a second PDSCH corresponding to the second HARQ-ACK.

Optionally, in this embodiment of the present application, the CORESET group index is an index value configured by the network device for each CORESET in advance through high-level signaling.

It should be understood that the terminal device 400 may correspond to the terminal device in the method 200, and can implement the corresponding operations of the terminal device in the method 200. For the sake of brevity, details are not described herein again.

FIG. 13 is a schematic structural diagram of a terminal device 500 provided by an embodiment of the present application. The terminal device 500 shown in FIG. 13 includes a processor 510, and the processor 510 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 13, the terminal device 500 may further include a memory 520. The processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application.

The memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.

Optionally, as shown in FIG. 13, the terminal device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Wherein, the transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of antennas may be one or more.

Optionally, the terminal device 500 may specifically be a terminal device of an embodiment of the present application, and the terminal device 500 may implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here. .

Fig. 14 is a schematic structural diagram of a device according to an embodiment of the present application. The apparatus 600 shown in FIG. 14 includes a processor 610, and the processor 610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 14, the apparatus 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.

Optionally, the device 600 may further include an input interface 630. The processor 610 can control the input interface 630 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the device 600 may further include an output interface 640. The processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the device can be applied to the terminal device in the embodiment of the present application, and the device can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, details are not described herein again.

Optionally, the device 600 may be a chip. It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For brevity, here No longer.

The embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, it is not here. Go into details again.

The embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the terminal device in the embodiment of the present application. When the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims (57)

1. A method for transmitting uplink control information, characterized in that the method includes:

   The terminal device determines the multiplexing mode of the first hybrid automatic repeat request-affirmative confirmation HARQ-ACK and the second HARQ-ACK in the target time slot, wherein the first HARQ-ACK and the second HARQ-ACK are Configured to transmit in the target time slot;

   The terminal device transmits the first HARQ-ACK and/or the second HARQ-ACK in the target time slot according to the multiplexing mode.
2. The method according to claim 1, wherein the terminal device determines the multiplexing mode of the first hybrid automatic repeat request-affirmative acknowledgement HARQ-ACK and the second HARQ-ACK in the target time slot, including :

   The terminal device determines the multiplexing mode according to the number of time domain resource units in the target time slot, and the target time slot includes at least one time domain resource unit; or

   The terminal device determines the multiplexing mode according to the high-level signaling sent by the network device.
3. The method according to claim 2, wherein the terminal device determines the multiplexing mode according to the number of time domain resource units in the target time slot, comprising:

   If the number of time domain resource units is 1, the terminal device determines that the multiplexing mode is joint transmission;

   If the number of time domain resource units is greater than 1, the terminal device determines that the multiplexing mode is independent transmission.
4. The method according to claim 2 or 3, wherein the method further comprises:

   The terminal device receives configuration information sent by a network device, where the configuration information includes the number of time domain resource units; or

   The terminal device determines the number of time domain resource units according to the number of orthogonal frequency division multiplexing OFDM symbols used for physical uplink control channel PUCCH transmission in the target time slot, where the target time slot includes At least one OFDM symbol used for PUCCH transmission.
5. The method according to any one of claims 1 to 4, wherein the terminal device transmits the first HARQ-ACK and/or the first HARQ-ACK in the target time slot according to the multiplexing mode. The second HARQ-ACK includes:

   If the multiplexing mode is joint transmission, the terminal device jointly transmits the first HARQ-ACK and the second HARQ-ACK in the target time slot;

   If the multiplexing mode is independent transmission, the terminal device transmits the first HARQ-ACK and the second HARQ-ACK respectively on different time domain resource units in the target time slot.
6. The method according to claim 5, wherein the terminal device separately transmits the first HARQ-ACK and the second HARQ-ACK on different time domain resource units in the target time slot, comprising :

   The terminal device determines the first time domain resource unit in the target time slot according to the CORESET group index of the control resource set corresponding to the first HARQ-ACK;

   Determining, by the terminal device, the second time domain resource unit in the target time slot according to the CORESET group index corresponding to the second HARQ-ACK;

   The terminal device transmits the first HARQ-ACK in the first time domain resource unit, and transmits the second HARQ-ACK in the second time domain resource unit.
7. The method according to any one of claims 1 to 4, wherein the terminal device transmits the first HARQ-ACK and/or the first HARQ-ACK in the target time slot according to the multiplexing mode. The second HARQ-ACK includes:

   The terminal device transmits the first HARQ-ACK and/or the second HARQ-ACK in the target timeslot according to the multiplexing mode and the number of time domain resource units in the target timeslot .
8. The method according to claim 7, wherein the terminal device transmits the first time domain resource unit in the target time slot according to the multiplexing mode and the number of time domain resource units in the target time slot. HARQ-ACK and/or the second HARQ-ACK includes:

   If the multiplexing mode is joint transmission, and the number of time domain resource units is 1, the terminal device jointly transmits the first HARQ-ACK and the second HARQ-ACK on the time domain resource unit. ACK.
9. The method according to claim 7, wherein the terminal device transmits the first time domain resource unit in the target time slot according to the multiplexing mode and the number of time domain resource units in the target time slot. HARQ-ACK and/or the second HARQ-ACK includes:

   If the multiplexing mode is joint transmission and the number of time domain resource units is multiple, the terminal device determines the target DCI;

   Determining, by the terminal device, a third time domain resource unit in the time domain resource unit according to the CORESET group index of the CORESET where the target DCI is located;

   The terminal device jointly transmits the first HARQ-ACK and the second HARQ-ACK in the third time domain resource unit.
10. The method according to claim 9, wherein the target DCI is the closest DCI of the first DCI and the second DCI, or the target DCI is the first DCI or the second DCI agreed in advance Good DCI;

    The first DCI is used to schedule a first physical downlink shared channel PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule a second PDSCH corresponding to the second HARQ-ACK.
11. The method according to claim 10, wherein the method further comprises:

    The terminal device determines the most recent DCI among the first DCI and the second DCI according to at least one of the following parameters:

    The CORESET group index of the CORESET where the first DCI is located and the CORESET group index of the CORESET where the second DCI is located;

    The serving cell index of the serving cell where the first DCI is located and the serving cell index of the serving cell where the second DCI is located;

    The serving cell index of the serving cell where the first PDSCH is located and the serving cell index of the serving cell where the second PDSCH is located;

    The transmission sequence of the first DCI and the second DCI.
12. The method according to claim 11, wherein the terminal device determining the most recent DCI among the first DCI and the second DCI comprises:

    The terminal device uses the DCI with the closest transmission time among the first DCI and the second DCI as the latest DCI; or

    If the transmission time of the first DCI and the second DCI are the same, the terminal device uses the DCI with the larger corresponding serving cell index in the first DCI and the second DCI as the latest DCI; or

    If the transmission time of the first DCI and the second DCI are the same, and the serving cell indexes corresponding to the first DCI and the second DCI are also the same, the terminal device compares the first DCI with the In the second DCI, the DCI with the larger index of the CORESET group of the CORESET is used as the nearest DCI.
13. The method according to any one of claims 9 to 12, wherein, when the CORESET group index of the CORESET where the target DCI is located is n, the third time domain resource unit is the target time slot The (n+1)th time domain resource unit.
14. The method according to claim 7, wherein the terminal device transmits the first time domain resource unit in the target time slot according to the multiplexing mode and the number of time domain resource units in the target time slot. HARQ-ACK and/or the second HARQ-ACK includes:

    If the multiplexing mode is joint transmission and the number of time domain resource units is multiple, the terminal device determines the agreed time domain resource unit as the fourth time domain resource unit;

    The terminal device jointly transmits the first HARQ-ACK and the second HARQ-ACK in the fourth time domain resource unit.
15. The method according to any one of claims 5, 8 to 14, wherein the terminal device jointly transmits the first HARQ-ACK and the second HARQ-ACK in the target time slot, include:

    After the terminal device cascades or jointly encodes the first HARQ-ACK and the second HARQ-ACK, the first HARQ-ACK and the second HARQ-ACK are transmitted in the target time slot. ACK.
16. The method according to claim 7, wherein the terminal device transmits the first time domain resource unit in the target time slot according to the multiplexing mode and the number of time domain resource units in the target time slot. HARQ-ACK and/or the second HARQ-ACK includes:

    If the multiplexing mode is independent transmission and the number of time domain resource units is multiple, the terminal device determines the first HARQ-ACK corresponding to the CORESET group index in the target time slot. A time domain resource unit;

    Determining, by the terminal device, the second time domain resource unit in the target time slot according to the CORESET group index corresponding to the second HARQ-ACK;

    The terminal device transmits the first HARQ-ACK in the first time domain resource unit, and transmits the second HARQ-ACK in the second time domain resource unit.
17. The method according to claim 6 or 16, wherein the CORESET group index corresponding to the first HARQ-ACK is the CORESET group index of the first CORESET where the first DCI is located, and the second HARQ-ACK The corresponding CORESET group index is the CORESET group index of the second CORESET where the second DCI is located;

    The first DCI is used to schedule a first PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule a second PDSCH corresponding to the second HARQ-ACK.
18. The method according to claim 6, 16 or 17, wherein when the CORESET group index corresponding to the first HARQ-ACK is k, the first time domain resource unit is the first time domain resource unit in the target time slot. (k+1) time domain resource units;

    When the CORESET group index of the control resource set corresponding to the second HARQ-ACK is s, the second time domain resource unit is the (s+1)th time domain resource unit in the target time slot.
19. The method according to claim 7, wherein the terminal device transmits the first time domain resource unit in the target time slot according to the multiplexing mode and the number of time domain resource units in the target time slot. HARQ-ACK and/or the second HARQ-ACK includes:

    If the multiplexing mode is independent transmission and the number of time domain resource units is 1, the terminal device determines a target HARQ-ACK in the first HARQ-ACK and the second HARQ-ACK;

    The terminal device transmits the target HARQ-ACK in the time domain resource unit.
20. The method according to claim 19, wherein the terminal device determining a target HARQ-ACK in the first HARQ-ACK and the second HARQ-ACK comprises:

    The terminal device according to the first PDSCH corresponding to the first HARQ-ACK and the second PDSCH corresponding to the second HARQ-ACK, or according to the first DCI used to schedule the first PDSCH and the second PDSCH used to schedule the first PDSCH The second DCI of the second PDSCH determines the target HARQ-ACK.
21. The method according to claim 20, wherein the terminal equipment is based on the first PDSCH corresponding to the first HARQ-ACK and the second PDSCH corresponding to the second HARQ-ACK, or according to the The first DCI of the first PDSCH and the second DCI used to schedule the second PDSCH, and determining the target HARQ-ACK includes:

    The terminal device determines the target HARQ-ACK according to at least one of the following information:

    The ID of the CORESET where the first DCI is located and the ID of the CORESET where the second DCI is located;

    The CORESET group index of the CORESET where the first DCI is located and the CORESET group index of the CORESET where the second DCI is located;

    An identifier of the search space where the first DCI is located and an identifier of the search space where the second DCI is located;

    The index of the search space where the first DCI is located and the index of the search space where the second DCI is located;

    The transmission sequence of the first DCI and the second DCI;

    The format of the first DCI and the format of the second DCI;

    The cyclic redundancy check CRC code scrambling mode of the first DCI and the second DCI;

    The serving cell index of the serving cell where the first DCI is located and the serving cell index of the serving cell where the second DCI is located;

    The serving cell index of the serving cell where the first PDSCH is located and the serving cell index of the serving cell where the second PDSCH is located;

    The receiving order of the first PDSCH and the second PDSCH.
22. The method according to any one of claims 2 to 7, 9 to 14, 16 to 18, wherein the number of time domain resource units in the target time slot is two.
23. The method according to any one of claims 2 to 22, wherein each time domain resource unit in the target time slot includes at least one PUCCH resource.
24. The method according to any one of claims 2 to 23, wherein each time domain resource unit in the target time slot contains N OFDM symbols, and N is greater than or equal to 1;

    Wherein, the value of N is pre-configured by the network device to the terminal device; or

    The value of N is agreed upon in advance by the terminal device and the network device; or

    The value of N is determined by the terminal device according to the number of OFDM symbols used for PUCCH transmission in the target time slot.
25. The method according to any one of claims 1 to 24, wherein the CORESET group index of the CORESET where the first DCI is located is different from the CORESET group index of the CORESET where the second DCI is located;

    The first DCI is used to schedule a first PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule a second PDSCH corresponding to the second HARQ-ACK.
26. The method according to claim 25, wherein the CORESET group index is an index value configured by the network device for each CORESET in advance through high-level signaling.
27. A terminal device, characterized in that it comprises:

    The processing unit is used to determine the multiplexing mode of the first hybrid automatic repeat request-affirmative HARQ-ACK and the second HARQ-ACK in the target time slot, wherein the first HARQ-ACK and the second HARQ -ACK is configured to be transmitted in the target time slot;

    The communication unit is configured to transmit the first HARQ-ACK and/or the second HARQ-ACK in the target time slot according to the multiplexing mode.
28. The terminal device according to claim 27, wherein the processing unit is specifically configured to:

    Determine the multiplexing mode according to the number of time domain resource units in the target time slot, and the target time slot includes at least one time domain resource unit; or

    The multiplexing mode is determined according to the high-level signaling sent by the network equipment.
29. The terminal device according to claim 28, wherein the processing unit is specifically configured to:

    If the number of time domain resource units is 1, determining that the multiplexing mode is joint transmission;

    If the number of time domain resource units is greater than 1, it is determined that the multiplexing mode is independent transmission.
30. The terminal device according to claim 28 or 29, wherein the communication unit is further configured to:

    Receiving configuration information sent by a network device, where the configuration information includes the number of time domain resource units; or

    The processing unit is also used for:

    Determine the number of time domain resource units according to the number of orthogonal frequency division multiplexing OFDM symbols used for physical uplink control channel PUCCH transmission in the target time slot, wherein the target time slot includes at least one for OFDM symbol for PUCCH transmission.
31. The terminal device according to any one of claims 27 to 30, wherein the communication unit is specifically configured to:

    If the multiplexing mode is joint transmission, jointly transmit the first HARQ-ACK and the second HARQ-ACK in the target time slot;

    If the multiplexing mode is independent transmission, the first HARQ-ACK and the second HARQ-ACK are respectively transmitted on different time domain resource units in the target time slot.
32. The terminal device according to claim 31, wherein the processing unit is further configured to:

    Determine the first time domain resource unit in the target time slot according to the CORESET group index of the control resource set corresponding to the first HARQ-ACK;

    Determine the second time domain resource unit in the target time slot according to the CORESET group index corresponding to the second HARQ-ACK;

    The communication unit is specifically used for:

    The first HARQ-ACK is transmitted in the first time domain resource unit, and the second HARQ-ACK is transmitted in the second time domain resource unit.
33. The terminal device according to any one of claims 27 to 30, wherein the communication unit is specifically configured to:

    According to the multiplexing mode and the number of time domain resource units in the target time slot, the first HARQ-ACK and/or the second HARQ-ACK is transmitted in the target time slot.
34. The terminal device according to claim 33, wherein the communication unit is specifically configured to:

    If the multiplexing mode is joint transmission and the number of time domain resource units is 1, the first HARQ-ACK and the second HARQ-ACK are jointly transmitted on the time domain resource unit.
35. The terminal device according to claim 33, wherein the processing unit is further configured to:

    If the multiplexing mode is joint transmission and the number of time domain resource units is multiple, determine the target DCI;

    Determine a third time domain resource unit in the time domain resource unit according to the CORESET group index of the CORESET where the target DCI is located;

    The communication unit is specifically used for:

    The first HARQ-ACK and the second HARQ-ACK are jointly transmitted in the third time domain resource unit.
36. The terminal device according to claim 35, wherein the target DCI is the nearest DCI of the first DCI and the second DCI, or the target DCI is the first DCI or the second DCI. Agreed DCI;

    The first DCI is used to schedule a first physical downlink shared channel PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule a second PDSCH corresponding to the second HARQ-ACK.
37. The terminal device according to claim 36, wherein the processing unit is further configured to:

    Determine the most recent DCI among the first DCI and the second DCI according to at least one of the following parameters:

    The CORESET group index of the CORESET where the first DCI is located and the CORESET group index of the CORESET where the second DCI is located;

    The serving cell index of the serving cell where the first DCI is located and the serving cell index of the serving cell where the second DCI is located;

    The serving cell index of the serving cell where the first PDSCH is located and the serving cell index of the serving cell where the second PDSCH is located;

    The transmission sequence of the first DCI and the second DCI.
38. The terminal device according to claim 37, wherein the processing unit is specifically configured to:

    Use the DCI with the closest transmission time among the first DCI and the second DCI as the latest DCI; or

    If the transmission time of the first DCI and the second DCI are the same, use the DCI with the larger corresponding serving cell index in the first DCI and the second DCI as the latest DCI; or

    If the transmission time of the first DCI and the second DCI are the same, and the serving cell indexes corresponding to the first DCI and the second DCI are also the same, the first DCI and the second DCI are The DCI with the larger index of the CORESET group of the CORESET is used as the nearest DCI.
39. The terminal device according to any one of claims 35 to 38, wherein when the CORESET group index of the CORESET where the target DCI is located is n, the third time domain resource unit is in the target time slot The (n+1)th time domain resource unit.
40. The terminal device according to claim 33, wherein the processing unit is further configured to:

    If the multiplexing mode is joint transmission and the number of time domain resource units is multiple, the agreed time domain resource unit is determined as the fourth time domain resource unit;

    The communication unit is specifically used for:

    The first HARQ-ACK and the second HARQ-ACK are jointly transmitted in the fourth time domain resource unit.
41. The terminal device according to any one of claims 31, 34 to 40, wherein the communication unit is specifically configured to:

    After the first HARQ-ACK and the second HARQ-ACK are concatenated or jointly encoded, the first HARQ-ACK and the second HARQ-ACK are transmitted in the target time slot.
42. The terminal device according to claim 33, wherein the processing unit is further configured to:

    If the multiplexing mode is independent transmission and the number of time domain resource units is multiple, the first time domain resource in the target time slot is determined according to the CORESET group index corresponding to the first HARQ-ACK unit;

    Determine the second time domain resource unit in the target time slot according to the CORESET group index corresponding to the second HARQ-ACK;

    The communication unit is specifically used for:

    The first HARQ-ACK is transmitted in the first time domain resource unit, and the second HARQ-ACK is transmitted in the second time domain resource unit.
43. The terminal device according to claim 32 or 42, wherein the CORESET group index corresponding to the first HARQ-ACK is the CORESET group index of the first CORESET where the first DCI is located, and the second HARQ-ACK is The CORESET group index corresponding to the ACK is the CORESET group index of the second CORESET where the second DCI is located;

    The first DCI is used to schedule a first PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule a second PDSCH corresponding to the second HARQ-ACK.
44. The terminal device according to claim 32, 42 or 43, wherein when the CORESET group index corresponding to the first HARQ-ACK is k, the first time domain resource unit is the target time slot (K+1)th time domain resource unit;

    When the CORESET group index of the control resource set corresponding to the second HARQ-ACK is s, the second time domain resource unit is the (s+1)th time domain resource unit in the target time slot.
45. The terminal device according to claim 33, wherein the processing unit is further configured to:

    If the multiplexing mode is independent transmission and the number of time domain resource units is 1, determine one target HARQ-ACK in the first HARQ-ACK and the second HARQ-ACK;

    The communication unit is specifically used for:

    The target HARQ-ACK is transmitted in the time domain resource unit.
46. The terminal device according to claim 45, wherein the processing unit is specifically configured to:

    According to the first PDSCH corresponding to the first HARQ-ACK and the second PDSCH corresponding to the second HARQ-ACK, or according to the first DCI used for scheduling the first PDSCH and the second PDSCH used for scheduling To determine the target HARQ-ACK.
47. The terminal device according to claim 46, wherein the processing unit is specifically configured to:

    Determine the target HARQ-ACK according to at least one of the following information:

    The ID of the CORESET where the first DCI is located and the ID of the CORESET where the second DCI is located;

    The CORESET group index of the CORESET where the first DCI is located and the CORESET group index of the CORESET where the second DCI is located;

    An identifier of the search space where the first DCI is located and an identifier of the search space where the second DCI is located;

    The index of the search space where the first DCI is located and the index of the search space where the second DCI is located;

    The transmission sequence of the first DCI and the second DCI;

    The format of the first DCI and the format of the second DCI;

    The cyclic redundancy check CRC code scrambling mode of the first DCI and the second DCI;

    The serving cell index of the serving cell where the first DCI is located and the serving cell index of the serving cell where the second DCI is located;

    The serving cell index of the serving cell where the first PDSCH is located and the serving cell index of the serving cell where the second PDSCH is located;

    The receiving order of the first PDSCH and the second PDSCH.
48. The terminal device according to any one of claims 28 to 33, 35 to 40, and 42 to 44, wherein the number of time domain resource units in the target time slot is two.
49. The terminal device according to any one of claims 28 to 48, wherein each time domain resource unit in the target time slot includes at least one PUCCH resource.
50. The terminal device according to any one of claims 28 to 49, wherein each time domain resource unit in the target time slot contains N OFDM symbols, and N is greater than or equal to 1;

    Wherein, the value of N is pre-configured by the network device to the terminal device; or

    The value of N is agreed upon in advance by the terminal device and the network device; or

    The value of N is determined by the terminal device according to the number of OFDM symbols used for PUCCH transmission in the target time slot.
51. The terminal device according to any one of claims 27 to 50, wherein the CORESET group index of the CORESET where the first DCI is located is different from the CORESET group index of the CORESET where the second DCI is located;

    The first DCI is used to schedule a first PDSCH corresponding to the first HARQ-ACK, and the second DCI is used to schedule a second PDSCH corresponding to the second HARQ-ACK.
52. The terminal device according to claim 51, wherein the CORESET group index is an index value configured by the network device for each CORESET in advance through high-level signaling.
53. A terminal device, characterized by comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute as claimed in claims 1 to 26 Any of the methods.
54. A device, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the device executes the method according to any one of claims 1 to 26.
55. A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 1 to 26.
56. A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 1 to 26.
57. A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 26.

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