WO2023012490A1

WO2023012490A1 - Apparatus and method of wireless communication

Info

Publication number: WO2023012490A1
Application number: PCT/IB2021/000547
Authority: WO
Inventors: Hao Lin
Original assignee: Orope France Sarl
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-02-09

Abstract

An apparatus and a method of wireless communication are provided. The method by a user equipment (UE) includes receiving, from a base station, a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot and determining a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot. This can solve issues in the prior art, reduce a signaling overhead, provide a method for PUCCH slot determination for the multiple PDSCH scheduling, provide a good communication performance, and/or provide high reliability.

Description

APPARATUS AND METHOD OF WIRELESS COMMUNICATION

BACKGROUND OF DISCLOSURE

1. Field of the Disclosure

[0001] The present disclosure relates to the field of communication systems, and more particularly, to an apparatus and a method of wireless communication, which can provide a good communication performance and/or high reliability.

2. Description of the Related Art

[0002] In an unlicensed band, an unlicensed spectrum is a shared spectrum. Communication equipment in different communication systems can use the unlicensed spectrum as long as the unlicensed meets regulatory requirements set by countries or regions on a spectrum. There is no need to apply for a proprietary spectrum authorization from a government. [0003] In order to allow various communication systems that use the unlicensed spectrum for wireless communication to coexist friendly in the spectrum, some countries or regions specify regulatory requirements that must be met to use the unlicensed spectrum. For example, a communication device follows a listen before talk (EBT) or channel access procedure, that is, the communication device needs to perform a channel sensing before transmitting a signal on a channel. When an EBT outcome illustrates that the channel is idle, the communication device can perform signal transmission; otherwise, the communication device cannot perform signal transmission. In order to ensure fairness, once a communication device successfully occupies the channel, a transmission duration cannot exceed a maximum channel occupancy time (MCOT). EBT mechanism is also called a channel access procedure. In new radio (NR) Release 16, there are different types of channel access procedures, e.g., type 1, type 2A, type 2B and type 2C channel access procedures as described in TS 37.213.

[0004] In Release (Rel.) 15 and Rel. 16 of new radio (NR) system, a resource allocation for downlink data such as physical downlink shared channel (PDSCH) has been specified in TS 38.214 section 5. A PDSCH may be scheduled by a downlink control information (DCI) format. The PDSCH contains a transport block corresponding to a hybrid automatic repeat request (HARQ) process number. However, in some cases, e.g., high throughput requested application such as virtual reality (VR)Zaugmented reality (AR), or non-terrestrial communications as described in TR 38.811 or TS 38.821, a user equipment (UE) needs to receive PDSCHs carrying different transport blocks consecutively in time domain. In some extreme cases, the UE receives the PDSCHs in consecutive slots. For such applications, if a network follows Rel.15 or Rel.16 specifications, the network needs to spend many DCIs in order to schedule these PDSCH transmissions. Obviously, it could consume a lot of signaling overhead.

[0005] Therefore, there is a need for an apparatus and a method of wireless communication, which can solve issues in the prior art, reduce a signaling overhead, provide a method for PUCCH slot determination for the multiple PDSCH scheduling, provide a good communication performance, and/or provide high reliability.

SUMMARY

[0006] An object of the present disclosure is to propose an apparatus (such as a user equipment (UE) and/or a base station) and a method of wireless communication, which can solve issues in the prior art, reduce a signaling overhead, provide a method for PUCCH slot determination for the multiple PDSCH scheduling, provide a good communication performance, and/or provide high reliability.

[0007] In a first aspect of the present disclosure, a method of wireless communication by a user equipment (UE) comprises receiving, from a base station, a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot and determining a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot.

[0008] In a second aspect of the present disclosure, a method of wireless communication by a base station comprises transmitting, to a user equipment (UE), a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot and controlling the UE to determine a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot.

[0009] In a third aspect of the present disclosure, a user equipment comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver. The transceiver is configured to receive, from a base station, a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot, and the processor is configured to determine a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot.

[0010] In a fourth aspect of the present disclosure, a base station comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver. The transceiver is configured to transmit, to a user equipment (UE), a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot, and the processor is configured to control the UE to determine a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot.

[0011] In a fifth aspect of the present disclosure, a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method.

[0012] In a sixth aspect of the present disclosure, a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method.

[0013] In a seventh aspect of the present disclosure, a computer readable storage medium, in which a computer program is stored, causes a computer to execute the above method.

[0014] In an eighth aspect of the present disclosure, a computer program product includes a computer program, and the computer program causes a computer to execute the above method.

[0015] In a ninth aspect of the present disclosure, a computer program causes a computer to execute the above method.

BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to illustrate the embodiments of the present disclosure or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present disclosure, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise.

[0017] FIG. 1 is a block diagram of one or more user equipments (UEs) and a base station (e.g., gNB) of communication in a communication network system according to an embodiment of the present disclosure.

[0018] FIG. 2 is a flowchart illustrating a method of wireless communication performed by a user equipment (UE) according to an embodiment of the present disclosure.

[0019] FIG. 3 is a flowchart illustrating a method of wireless communication performed by a base station according to an embodiment of the present disclosure. [0020] FIG. 4 illustrates an example that a DCI format schedules a set of PDSCHs in a set of slots according to an embodiment of the present disclosure.

[0021] FIG. 5 illustrates an example that a DCI format schedules a set of PDSCHs in a set of slots according to an embodiment of the present disclosure.

[0022] FIG. 6 illustrates an example that a DCI format schedules a set of PDSCHs in a set of slots according to an embodiment of the present disclosure.

[0023] FIG. 7 illustrates an example that a DCI format schedules a set of PDSCHs in a set of slots according to an embodiment of the present disclosure.

[0024] FIG. 8 is a block diagram of a system for wireless communication according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF EMBODIMENTS

[0025] Embodiments of the present disclosure are described in detail with the technical matters, structural features, achieved objects, and effects with reference to the accompanying drawings as follows. Specifically, the terminologies in the embodiments of the present disclosure are merely for describing the purpose of the certain embodiment, but not to limit the disclosure.

[0026] For uplink transmissions or downlink transmissions in a shared spectrum, a user equipment (UE) or a gNB may perform a channel access procedure before transmitting one or more uplink transmissions or one or more downlink transmissions in a channel. The channel access procedure comprises sensing a channel to determine whether the channel is idle or busy. Optionally, a channel access procedure may comprise at least a type 1 channel access according to section 4.2.1.1 of TS37.213, or a type 2A channel access according to section 4.2.1.2.1 of TS37.213, or a type 2B channel access according to section 4.2.1.2.2 of TS37.213, or a type 2C channel access according to section 4.2.1.2.3 of TS37.213.

[0027] FIG. 1 illustrates that, in some embodiments, one or more user equipments (UEs) 10 and a base station (e.g., gNB) 20 for transmission adjustment in a communication network system 30 according to an embodiment of the present disclosure are provided. The communication network system 30 includes the one or more UEs 10 and the base station 20. The one or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13. The base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23. The processor 11 or 21 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21. The transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and/or receives a radio signal.

[0028] The processor 11 or 21 may include application-specific integrated circuit (ASIC), other chipset, logic circuit and/or data processing device. The memory 12 or 22 may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and/or other storage device. The transceiver 13 or 23 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21. The memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.

[0029] In some embodiments, the transceiver 13 is configured to receive, from the base station 20, a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot, and the processor is configured to determine a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot. This can solve issues in the prior art, reduce a signaling overhead, provide a method for PUCCH slot determination for the multiple PDSCH scheduling, provide a good communication performance, and/or provide high reliability.

[0030] In some embodiments, the transceiver 23 is configured to transmit, to the UE 10, a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot, and the processor is configured to control the UE to determine a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot. This can solve issues in the prior art, reduce a signaling overhead, provide a method for PUCCH slot determination for the multiple PDSCH scheduling, provide a good communication performance, and/or provide high reliability.

[0031] FIG. 2 illustrates a method 200 of wireless communication by a user equipment (UE) according to an embodiment of the present disclosure. In some embodiments, the method 200 includes: a block 202, receiving, from a base station, a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot, and a block 204, determining a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot. This can solve issues in the prior art, reduce a signaling overhead, provide a method for PUCCH slot determination for the multiple PDSCH scheduling, provide a good communication performance, and/or provide high reliability.

[0032] FIG. 3 illustrates a method 300 of wireless communication by a base station according to an embodiment of the present disclosure. In some embodiments, the method 300 includes: a block 302, transmitting, to a user equipment (UE), a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot, and a block 304, controlling the UE to determine a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot. This can solve issues in the prior art, reduce a signaling overhead, provide a method for PUCCH slot determination for the multiple PDSCH scheduling, provide a good communication performance, and/or provide high reliability.

[0033] In some embodiments, the second slot is before the first slot. In some embodiments, the first PDSCH comprise a first one or more symbols in the first slot. In some embodiments, the second PDSCH comprises a second one or more symbols in the second slot. In some embodiments, the first PDSCH is a last PDSCH among the set of PDSCHs. In some embodiments, the DCI format provides a timing information used to determine the PUCCH slot. In some embodiments, the timing information comprises a PDSCH-to-hybrid automatic repeat request (HARQ) feedback timing. In some embodiments, in the PUCCH slot, the UE is configured to report at least a HARQ-acknowledgement (ACK) information corresponding to the first PDSCH reception and/or the second PDSCH reception. In some embodiments, the timing information comprises a number of slots. In some embodiments, the PUCCH slot is located in a third slot, that is the number of slots after the first slot. In some embodiments, the first PDSCH carries a first transport block (TB), the second PDSCH carries a second TB, and the first TB of the first PDSCH is different from the second TB of the second PDSCH. In some embodiments, the method further comprises be provided with a configuration with a first parameter and/or a second parameter indicating that the first slot is an uplink slot or at least one of the first one or more symbols is an uplink symbol. In some embodiments, the first parameter comprises tdd-UL-DL-ConfigurationCommon and/or the second parameter comprises tdd-UL-DL-ConfigurationDedicated. In some embodiments, when the first PDSCH in the first slot is an invalid PDSCH scheduling, the UE does not receive the first PDSCH in the first slot. [0034] In some embodiments, the configuration with the first parameter and/or the second parameter indicates that the second slot is an downlink slot or a flexible slot or none of the second one or more symbols is uplink symbol. In some embodiments, when the second PDSCH in the second slot is a valid PDSCH scheduling, the UE receives the second PDSCH in the second slot. In some embodiments, the second PDSCH is a last valid PDSCH scheduling among the set of PDSCHs. In some embodiments, the PUCCH slot is located in a third slot, that is the number of slots after the first slot. In some embodiments, the PUCCH slot is located in a fourth slot, that is the number of slots after the second slot. In some embodiments, the configuration with the first parameter and/or the second parameter indicates that the second slot is a second last scheduled PDSCH before the first PDSCH in the first slot. In some embodiments, the configuration with the first parameter and/or the second parameter indicates that the second slot is a downlink slot, a flexible slot, or not an uplink slot or a second signal in the second slot scheduling the second PDSCH is a signal slot, a flexible signal, or not an uplink signal. In some embodiments, the second slot is a last PDSCH slot in which the UE receives a scheduled PDSCH among scheduled PDSCHs.

[0035] In some embodiments, the first slot and the second slot are consecutive or non-consecutive in time domain. In some embodiments, the first slot and/or the second slot is determined by a first information, wherein the first information is provided by the DCI format. In some embodiments, the DCI format comprises a first indication field, and the first indication field provides the first information. In some embodiments, the first indication field comprises at least a time domain resource allocation (TDRA) indicator. In some embodiments, the first indication field provides a value, the value corresponds to a third parameter and/or a fourth parameter, and the third parameter and/or the fourth parameter provides the first information. In some embodiments, the third parameter comprises a first kO and/or a second kO, wherein the first kO is a first number of slots and the second kO is a second number of slots. In some embodiments, the first kO is larger than the second kO. In some embodiments, the first slot is a first number of slots after a fifth slot, and the UE receives the DCI format in the fifth slot. In some embodiments, the second slot is a second number of slots after the fifth slot. In some embodiments, the TDRA indication provides a value, the value corresponds to a set of kO values, each kO value further corresponds to a PDSCH of the set of PDSCHs scheduled by the DCI format. In some embodiments, the kO value corresponding to the first PDSCH in the first slot is a largest value among the set of kO values. In some embodiments, the fourth parameter comprises a start and length indicator value (SLIV), the SLIV is used to determine a starting symbol of a scheduled PDSCH and a number of symbols of a scheduled PDSCH. In some embodiments, the value provided by the TDRA indicator corresponds to a set of SLIVs, wherein a last SLIV corresponds to the first PDSCH in the first slot, and a SLIV among the set of SLIVs except for the last SLIV corresponds to the second PDSCH in the second slot. In some embodiments, a SLIV is an invalid SLIV when the determined symbol length is smaller than or equal to a second value. In some embodiments, the second value is pre-defined or pre-configured. In some embodiments, the second value is 0. In some embodiments, a PDSCH corresponding to an invalid SLIV is an invalid PDSCH scheduling.

[0036] In some embodiments, an exemplary method of PDSCH scheduling for a new radio (NR) system comprising a network may schedule one or more PDSCH transmission by a same DCI format. In this disclosure, some embodiments present a method for PUCCH slot determination for the multiple PDSCH scheduling case.

[0037] PIG. 4 illustrates an example that a DCI format schedules a set of PDSCHs in a set of slots according to an embodiment of the present disclosure. In some examples, when a UE receives a DCI format, and the DCI format schedules a set of PDSCHs in a set of slots, in which a last PDSCH ends in slot#n and a PDSCH before the last PDSCH ends in slot#m as illustrated in PIG. 4.

[0038] PIG. 5 illustrates an example that a DCI format schedules a set of PDSCHs in a set of slots according to an embodiment of the present disclosure. In the DCI format, the DCI format provides a PDSCH-to-HARQ_feedback timing (k) and this timing is used to determine a PUCCH slot in which the UE reports the HARQ-ACK information corresponding to the PDSCH receptions. The k is the number of slots, i.e., k slots. In some examples, the PUCCH slot is the slot#n+k, that is the k slots after the slot where the last PDSCH ends as illustrated in FIG. 5. In some embodiments, a last PDSCH carries a last transport block (TB), a second last PDSCH carries a second last TB, and the last TB of the last PDSCH is different from the second last TB of the second last PDSCH.

[0039] FIG. 6 illustrates an example that a DCI format schedules a set of PDSCHs in a set of slots according to an embodiment of the present disclosure. In some examples, when a network indicates that the slot n is an uplink slot or at least one of the first one or more symbols is an uplink symbol by providing a configuration with parameter tdd-UL-DL-ConfigurationCommon and/or tdd-UL-DL-ConfigurationDedlicated, then the slot n becomes an uplink slot and the scheduled PDSCH in slot n is an invalid PDSCH scheduling, then the UE does not receive the scheduled PDSCH in slot n. For the other scheduled PDSCH, if the tdd-UL-DL-ConfigurationCommon and/or tdd-UL-DL-ConfigurationDedlicated does not indicate an uplink slot or indicates an downlink slot or a flexible slot or none of the second one or more symbols being uplink symbol, the other scheduled PDSCH are valid scheduled PDSCHs, then the UE can receive the other scheduled PDSCH. In the example as illustrated in FIG. 6, where the slot n is indicated by tdd-UL-DL-ConfigurationCommon and/or tdd-UL-DL-ConfigurationDedlicated as an uplink slot or at least one of the first one or more symbols and the UE does not receive the scheduled PDSCH in slot n, but the PUCCH slot is determined in slot n+k, as illustrated in FIG. 6. In some embodiments, for a DCI scheduling a set of PDSCHs in a set of slots, and providing a k value for PUCCH slot determination, the PUCCH slot is determined in slot n+k, where slot n is the last scheduled PDSCH slot by the DCI, even if the scheduled PDSCH in the PDSCH slot is not a valid PDSCH for reception due to tdd-UL-DL-ConfigurationCommon and/or tdd-UL-DL-ConfigurationDedlicated indicating that it as an uplink slot or at least one of the first one or more symbols is an uplink symbol.

[0040] FIG. 7 illustrates an example that a DCI format schedules a set of PDSCHs in a set of slots according to an embodiment of the present disclosure. Optionally, the slot n is indicated by tdd-UL-DL-ConfigurationCommon and/or tdd-UL-DL-ConfigurationDedlicated as an uplink slot or at least one of the first one or more symbols, and the UE does not receive the scheduled PDSCH in slot n, and the PUCCH slot is determined in slot m+k, where slot m is the second last scheduled PDSCH before the scheduled PDSCH in slot n, if the slot m is indicated as an downlink slot or a flexible slot or none of the second one or more symbols being uplink symbol by tdd-UL-DL-ConfigurationCommon and/or tdd-UL-DL- ConfigurationDedlicated as illustrated in FIG. 7. It is to note that slot m and slot n may be consecutive or non-consecutive in time domain. In some examples, for a DCI scheduling a set of PDSCHs in a set of slots, and providing a k value for PUCCH slot determination, the PUCCH slot is determined in slot 1+k, where slot 1 is the last PDSCH slot in which UE receives the scheduled PDSCH among the set of PDSCHs.

[0041] Commercial interests for some embodiments are as follows. 1. Solving issues in the prior art. 2. Reducing a signaling overhead. 3. Providing a method for PUCCH slot determination for the multiple PDSCH scheduling. 4. Providing a good communication performance. 5. Providing a high reliability. 6. Some embodiments of the present disclosure are used by 5G-NR chipset vendors, V2X communication system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto-bikes, helmets, and etc., drones (unmanned aerial vehicles), smartphone makers, communication devices for public safety use, AR/VR device maker for example gaming, conference/seminar, education purposes. Some embodiments of the present disclosure are a combination of “techniques/processes” that can be adopted in 3GPP specification to create an end product. Some embodiments of the present disclosure could be adopted in the 5G NR unlicensed band communications. Some embodiments of the present disclosure propose technical mechanisms.

[0042] FIG. 8 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the system using any suitably configured hardware and/or software. FIG. 8 illustrates the system 700 including a radio frequency (RF) circuitry 710, a baseband circuitry 720, an application circuitry 730, a memory/ storage 740, a display 750, a camera 760, a sensor 770, and an input/output (I/O) interface 780, coupled with each other at least as illustrated. The application circuitry 730 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors. The processors may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems running on the system.

[0043] The baseband circuitry 720 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include a baseband processor. The baseband circuitry may handle various radio control functions that enables communication with one or more radio networks via the RF circuitry. The radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc. In some embodiments, the baseband circuitry may provide for communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN). Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry.

[0044] In various embodiments, the baseband circuitry 720 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency. For example, in some embodiments, baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency. The RF circuitry 710 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. In various embodiments, the RF circuitry 710 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency. For example, in some embodiments, RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.

[0045] In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and/or the application circuitry. As used herein, “circuitry” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuitry, the application circuitry, and/or the memory/storage may be implemented together on a system on a chip (SOC). The memory/storage 740 may be used to load and store data and/or instructions, for example, for system. The memory/storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM)), and/or non-volatile memory, such as flash memory.

[0046] In various embodiments, the I/O interface 780 may include one or more user interfaces designed to enable user interaction with the system and/or peripheral component interfaces designed to enable peripheral component interaction with the system. User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc. Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface. In various embodiments, the sensor 770 may include one or more sensing devices to determine environmental conditions and/or location information related to the system. In some embodiments, the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of, or interact with, the baseband circuitry and/or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.

[0047] In various embodiments, the display 750 may include a display, such as a liquid crystal display and a touch screen display. In various embodiments, the system 700 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR/VR glasses, etc. In various embodiments, system may have more or less components, and/or different architectures. Where appropriate, methods described herein may be implemented as a computer program. The computer program may be stored on a storage medium, such as a non-transitory storage medium.

[0048] A person having ordinary skill in the art understands that each of the units, algorithm, and steps described and disclosed in the embodiments of the present disclosure are realized using electronic hardware or combinations of software for computers and electronic hardware. Whether the functions run in hardware or software depends on the condition of application and design requirement for a technical plan. A person having ordinary skill in the art can use different ways to realize the function for each specific application while such realizations should not go beyond the scope of the present disclosure. It is understood by a person having ordinary skill in the art that he/she can refer to the working processes of the system, device, and unit in the above-mentioned embodiment since the working processes of the above-mentioned system, device, and unit are basically the same. For easy description and simplicity, these working processes will not be detailed. [0049] It is understood that the disclosed system, device, and method in the embodiments of the present disclosure can be realized with other ways. The above-mentioned embodiments are exemplary only. The division of the units is merely based on logical functions while other divisions exist in realization. It is possible that a plurality of units or components are combined or integrated in another system. It is also possible that some characteristics are omitted or skipped. On the other hand, the displayed or discussed mutual coupling, direct coupling, or communicative coupling operate through some ports, devices, or units whether indirectly or communicatively by ways of electrical, mechanical, or other kinds of forms. The units as separating components for explanation are or are not physically separated. The units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments. Moreover, each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.

[0050] If the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer. Based on this understanding, the technical plan proposed by the present disclosure can be essentially or partially realized as the form of a software product. Or, one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product. The software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the steps disclosed by the embodiments of the present disclosure. The storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other kinds of media capable of storing program codes.

[0051] While the present disclosure has been described in connection with what is considered the most practical and preferred embodiments, it is understood that the present disclosure is not limited to the disclosed embodiments but is intended to cover various arrangements made without departing from the scope of the broadest interpretation of the appended claims.

Claims

What is claimed is:

1. A wireless communication method by a user equipment (UE), comprising: receiving, from a base station, a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot; and determining a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot.

2. The method of claim 1, wherein the second slot is before the first slot.

3. The method of claim 1 or 2, wherein the first PDSCH comprise a first one or more symbols in the first slot.

4. The method of any one of claims 1 to 3, wherein the second PDSCH comprises a second one or more symbols in the second slot.

5. The method of any one of claims 1 to 4, wherein the first PDSCH is a last PDSCH among the set of PDSCHs.

6. The method of any one of claims 1 to 5, wherein the DCI format provides a timing information used to determine the PUCCH slot.

7. The method of claim 6, wherein the timing information comprises a PDSCH-to-hybrid automatic repeat request (HARQ) feedback timing.

8. The method of claim 6 or 7, wherein in the PUCCH slot, the UE is configured to report at least a HARQ-acknowledgement (ACK) information corresponding to the first PDSCH reception and/or the second PDSCH reception.

9. The method of any one of claims 6 to 8, wherein the timing information comprises a number of slots.

10. The method of claim 9, wherein the PUCCH slot is located in a third slot, that is the number of slots after the first slot.

11. The method of any one of claims 1 to 9, wherein the first PDSCH carries a first transport block (TB), the second PDSCH carries a second TB, and the first TB of the first PDSCH is different from the second TB of the second PDSCH.

12. The method of any one of claims 1 to 9 and 11, further comprising be provided with a configuration with a first parameter and/or a second parameter indicating that the first slot is an uplink slot or at least one of the first one or more symbols is an uplink symbol.

13. The method of claim 12, wherein the first parameter comprises tdd-UL-DL-ConfigurationCommon and/or the second parameter comprises tdd-UL-DL-ConfigurationDedicated.

14. The method of claim 12 or 13, wherein when the first PDSCH in the first slot is an invalid PDSCH scheduling, the UE does not receive the first PDSCH in the first slot.

15. The method of any one of claims 12 to 14, wherein the configuration with the first parameter and/or the second parameter indicates that the second slot is an downlink slot or a flexible slot or none of the second one or more symbols is uplink symbol.

16. The method of claim 15, wherein when the second PDSCH in the second slot is a valid PDSCH scheduling, the UE receives the second PDSCH in the second slot, and/or the second PDSCH is a last valid PDSCH scheduling among the set of PDSCHs.

17. The method of any one of claims 12 to 16, wherein the PUCCH slot is located in a third slot, that is the number of slots after the first slot.

18. The method of any one of claims 12 to 16, wherein the PUCCH slot is located in a fourth slot, that is the number of slots after the second slot.

19. The method of claim 18, wherein the configuration with the first parameter and/or the second parameter indicates that the second slot is a second last scheduled PDSCH before the first PDSCH in the first slot.

20. The method of claim 18 or 19, wherein the configuration with the first parameter and/or the second parameter indicates

9 that the second slot is a downlink slot, a flexible slot, or not an uplink slot or a second signal in the second slot scheduling the second PDSCH is a signal slot, a flexible signal, or not an uplink signal.

21. The method of any one of claims 18 to 20, wherein the second slot is a last PDSCH slot in which the UE receives a scheduled PDSCH among scheduled PDSCHs.

22. The method of any one of claims 1 to 21, wherein the first slot and the second slot are consecutive or non-consecutive in time domain.

23. The method of any one of claims 1 to 22, wherein the first slot and/or the second slot is determined by a first information, wherein the first information is provided by the DCI format.

24. The method of claim 23, wherein the DCI format comprises a first indication field, and the first indication field provides the first information.

25. The method of claim 24, wherein the first indication field comprises at least a time domain resource allocation (TDRA) indicator.

26. The method of claim 24 or 25, wherein the first indication field provides a value, the value corresponds to a third parameter and/or a fourth parameter, and the third parameter and/or the fourth parameter provides the first information.

27. The method of claim 26, wherein the third parameter comprises a first kO and/or a second kO, wherein the first kO is a first number of slots and the second kO is a second number of slots, and/or the first kO is larger than the second kO.

28. The method of claim 27, wherein the first slot is a first number of slots after a fifth slot, and the UE receives the DCI format in the fifth slot.

29. The method of claim 27 or 28, wherein the second slot is a second number of slots after the fifth slot.

30. The method of any one of claims 25 to 29, wherein the TDRA indication provides a value, the value corresponds to a set of kO values, each kO value further corresponds to a PDSCH of the set of PDSCHs scheduled by the DCI format.

31. The method of claim 30, wherein the kO value corresponding to the first PDSCH in the first slot is a largest value among the set of kO values.

32. The method of any one of claims 26 to 31, wherein the fourth parameter comprises a start and length indicator value (SLIV), the SLIV is used to determine a starting symbol of a scheduled PDSCH and a number of symbols of a scheduled PDSCH.

33. The method of any one of claims 25 to 32, wherein the value provided by the TDRA indicator corresponds to a set of SLIVs, a last SLIV corresponds to the first PDSCH in the first slot, and a SLIV among the set of SLIVs except for the last SLIV corresponds to the second PDSCH in the second slot.

34. The method of any one of claims 25 to 33, wherein a SLIV is an invalid SLIV when the determined symbol length is smaller than or equal to a second value.

35. The method of claim 34, wherein the second value is pre-defined or pre-configured.

36. The method of claim 34 or 35, wherein the second value is 0.

37. The method of any one of claims 25 to 36, wherein a PDSCH corresponding to an invalid SLIV is an invalid PDSCH scheduling.

38. A wireless communication method by a base station, comprising: transmitting, to a user equipment (UE), a downlink control information (DCI) format scheduling a set of physical downlink shared channels (PDSCHs) reception, wherein there are at least a first physical downlink shared channel (PDSCH) reception in a first slot and a second PDSCH reception in a second slot; and controlling the UE to determine a physical uplink control channel (PUCCH) slot according to the first PDSCH reception in the first slot and/or the second PDSCH reception in the second slot.

39. The method of claim 38, wherein the second slot is before the first slot.

40. The method of claim 38 or 39, wherein the first PDSCH comprise a first one or more symbols in the first slot.

41. The method of any one of claims 38 to 40, wherein the second PDSCH comprises a second one or more symbols in the second slot.

42. The method of any one of claims 38 to 41, wherein the first PDSCH is a last PDSCH among the set of PDSCHs.

43. The method of any one of claims 38 to 42, wherein the DCI format provides a timing information used to determine the PUCCH slot.

44. The method of claim 43, wherein the timing information comprises a PDSCH-to-hybrid automatic repeat request (HARQ) feedback timing.

45. The method of claim 43 or 44, wherein in the PUCCH slot, the UE is configured to report at least a HARQ-acknowledgement (ACK) information corresponding to the first PDSCH reception and/or the second PDSCH reception.

46. The method of any one of claims 43 to 45, wherein the timing information comprises a number of slots.

47. The method of claim 46, wherein the PUCCH slot is located in a third slot, that is the number of slots after the first slot.

48. The method of any one of claims 38 to 46, wherein the first PDSCH carries a first transport block (TB), the second PDSCH carries a second TB, and the first TB of the first PDSCH is different from the second TB of the second PDSCH.

49. The method of any one of claims 38 to 46 and 48, further comprising providing, to the UE, a configuration with a first parameter and/or a second parameter indicating that the first slot is an uplink slot or at least one of the first one or more symbols is an uplink symbol.

50. The method of claim 49, wherein the first parameter comprises tdd-UL-DL-ConfigurationCommon and/or the second parameter comprises tdd-UL-DL-ConfigurationDedicated.

51. The method of claim 49 or 50, wherein when the first PDSCH in the first slot is an invalid PDSCH scheduling, the UE does not receive the first PDSCH in the first slot.

52. The method of any one of claims 49 to 51, wherein the configuration with the first parameter and/or the second parameter indicates that the second slot is an downlink slot or a flexible slot or none of the second one or more symbols is uplink symbol.

53. The method of claim 52, wherein when the second PDSCH in the second slot is a valid PDSCH scheduling, the UE receives the second PDSCH in the second slot, and/or the second PDSCH is a last valid PDSCH scheduling among the set of PDSCHs.

54. The method of any one of claims 49 to 53, wherein the PUCCH slot is located in a third slot, that is the number of slots after the first slot.

55. The method of any one of claims 49 to 53, wherein the PUCCH slot is located in a fourth slot, that is the number of slots after the second slot.

56. The method of claim 55, wherein the configuration with the first parameter and/or the second parameter indicates that the second slot is a second last scheduled PDSCH before the first PDSCH in the first slot.

57. The method of claim 55 or 56, wherein the configuration with the first parameter and/or the second parameter indicates that the second slot is a downlink slot, a flexible slot, or not an uplink slot or a second signal in the second slot scheduling the second PDSCH is a signal slot, a flexible signal, or not an uplink signal.

58. The method of any one of claims 55 to 57, wherein the second slot is a last PDSCH slot in which the UE receives a scheduled PDSCH among scheduled PDSCHs.

59. The method of any one of claims 38 to 58, wherein the first slot and the second slot are consecutive or non-consecutive in time domain.

60. The method of any one of claims 38 to 59, wherein the first slot and/or the second slot is determined by a first information, wherein the first information is provided by the DCI format.

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61. The method of claim 60, wherein the DCI format comprises a first indication field, and the first indication field provides the first information.

62. The method of claim 61, wherein the first indication field comprises at least a time domain resource allocation (TDRA) indicator.

63. The method of claim 61 or 62, wherein the first indication field provides a value, the value corresponds to a third parameter and/or a fourth parameter, and the third parameter and/or the fourth parameter provides the first information.

64. The method of claim 63, wherein the third parameter comprises a first kO and/or a second kO, wherein the first kO is a first number of slots and the second kO is a second number of slots, and/or the first kO is larger than the second kO.

65. The method of claim 64, wherein the first slot is a first number of slots after a fifth slot, and the UE receives the DCI format in the fifth slot.

66. The method of claim 64 or 65, wherein the second slot is a second number of slots after the fifth slot.

67. The method of any one of claims 62 to 66, wherein the TDRA indication provides a value, the value corresponds to a set of kO values, each kO value further corresponds to a PDSCH of the set of PDSCHs scheduled by the DCI format.

68. The method of claim 67, wherein the kO value corresponding to the first PDSCH in the first slot is a largest value among the set of kO values.

69. The method of any one of claims 63 to 68, wherein the fourth parameter comprises a start and length indicator value (SLIV), the SLIV is used to determine a starting symbol of a scheduled PDSCH and a number of symbols of a scheduled PDSCH.

70. The method of any one of claims 62 to 69, wherein the value provided by the TDRA indicator corresponds to a set of SLIVs, a last SLIV corresponds to the first PDSCH in the first slot, and a SLIV among the set of SLIVs except for the last SLIV corresponds to the second PDSCH in the second slot.

71. The method of any one of claims 62 to 70, wherein a SLIV is an invalid SLIV when the determined symbol length is smaller than or equal to a second value.

72. The method of claim 71, wherein the second value is pre-defined or pre-configured.

73. The method of claim 71 or 72, wherein the second value is 0.

74. The method of any one of claims 62 to 73, wherein a PDSCH corresponding to an invalid SLIV is an invalid PDSCH scheduling.

75. A user equipment (UE), comprising: a memory; a transceiver; and a processor coupled to the memory and the transceiver; wherein the processor is configured to perform the method of any one of claims 1 to 37.

76. A base station, comprising: a memory; a transceiver; and a processor coupled to the memory and the transceiver; wherein the processor is configured to perform the method of any one of claims 38 to 74.

77. A non-transitory machine -readable storage medium having stored thereon instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 74.

78. A chip, comprising: a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the method of any one of claims 1 to 74.

79. A computer readable storage medium, in which a computer program is stored, wherein the computer program causes a

12 computer to execute the method of any one of claims 1 to 74.

80. A computer program product, comprising a computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 74.

81. A computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 74.

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