CN117014124A - Apparatus in a wireless communication system and method performed thereby - Google Patents

Abstract

An apparatus in a wireless communication system and a method performed thereby are provided. The method comprises the following steps: receiving a plurality of Downlink Control Information (DCI) formats; determining an ordering of each DCI format of the plurality of DCI formats; and determining uplink transmission resources for transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) information based on the determined ordering. The invention can improve communication efficiency.

Description

Apparatus in a wireless communication system and method performed thereby

Technical Field

The present disclosure relates generally to the field of wireless communications, and in particular, to an apparatus in a wireless communication system and a method performed thereby.

Background

In order to meet the increasing demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi 5G communication systems. Therefore, a 5G or quasi 5G communication system is also referred to as a "super 4G network" or a "LTE-after-system".

The 5G communication system is implemented in a higher frequency (millimeter wave) band, for example, a 60GHz band, to achieve a higher data rate. In order to reduce propagation loss of radio waves and increase transmission distance, beamforming, massive Multiple Input Multiple Output (MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, massive antenna techniques are discussed in 5G communication systems.

Further, in the 5G communication system, development of system network improvement is being performed based on advanced small cells, cloud Radio Access Networks (RANs), ultra dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, cooperative multipoint (CoMP), receiving-end interference cancellation, and the like.

In 5G systems, hybrid FSK and QAM modulation (FQAM) and Sliding Window Superposition Coding (SWSC) as Advanced Code Modulation (ACM), and Filter Bank Multicarrier (FBMC), non-orthogonal multiple access (NOMA) and Sparse Code Multiple Access (SCMA) as advanced access technologies have been developed.

Disclosure of Invention

In accordance with at least one embodiment of the present disclosure, a method performed by a terminal in a wireless communication system is provided. The method comprises the following steps: receiving a plurality of Downlink Control Information (DCI) formats; determining an ordering of each DCI format of the plurality of DCI formats; and determining uplink transmission resources for transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) information based on the determined ordering

In accordance with at least one embodiment of the present disclosure, a method performed by a terminal in a wireless communication system is provided. The method comprises the following steps: determining a reference serving cell if a predefined condition is met; and performing uplink transmission based on the determined reference serving cell.

According to some embodiments of the present disclosure, there is also provided a terminal in a wireless communication system. The terminal comprises: a transceiver configured to transmit and receive signals; and a controller coupled with the transceiver and configured to perform one or more operations of the methods performed by the terminal described above.

According to some embodiments of the present disclosure, there is also provided a computer-readable storage medium having stored thereon one or more computer programs, wherein any of the methods described above may be implemented when the one or more computer programs are executed by one or more processors.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments of the present disclosure will be briefly described below. It is apparent that the figures described below relate only to some embodiments of the present disclosure and are not limiting of the present disclosure. In the accompanying drawings:

fig. 1 illustrates a schematic diagram of an example wireless network, according to some embodiments of the present disclosure;

fig. 2A and 2B illustrate example wireless transmit and receive paths according to some embodiments of the present disclosure;

fig. 3A illustrates an example User Equipment (UE) in accordance with some embodiments of the present disclosure;

FIG. 3B illustrates an example gNB, according to some embodiments of the present disclosure;

fig. 4 illustrates a block diagram of a second transceiving node according to some embodiments of the present disclosure;

fig. 5 illustrates a flow chart of a method performed by a UE in accordance with some embodiments of the disclosure;

fig. 6A-6C illustrate some examples of uplink transmission timing according to some embodiments of the present disclosure;

fig. 7 illustrates an example of partial Bandwidth (BWP) handoff in accordance with some embodiments of the disclosure;

fig. 8A and 8B illustrate examples of time domain resource allocation tables according to some embodiments of the present disclosure;

fig. 9 illustrates a flowchart of a method performed by a terminal according to some embodiments of the present disclosure;

FIG. 10 illustrates a flow chart of a method performed by a terminal according to some embodiments of the present disclosure;

FIG. 11 illustrates a flow chart of a method performed by a terminal according to some embodiments of the present disclosure;

fig. 12 illustrates a block diagram of a first transceiving node according to some embodiments of the present disclosure; and

fig. 13 illustrates a flow chart of a method performed by a base station according to some embodiments of the present disclosure.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Before proceeding with the description of the detailed description that follows, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document. The term "couple" and its derivatives refer to any direct or indirect communication between two or more elements, whether or not those elements are in physical contact with one another. The terms "transmit," "receive," and "communicate," and derivatives thereof, encompass both direct and indirect communication. The terms "include" and "comprise," as well as derivatives thereof, are intended to be inclusive and not limited to. The term "or" is inclusive, meaning and/or. The phrase "associated with" and its derivatives are intended to include, be included within, be connected to, be interconnected with, be included within, be connected to or be connected with, be coupled to or be coupled with, be able to communicate with, be co-operative with, be interwoven with, be juxtaposed with, be proximate to, be bound to or be in relation to, be bound to, be provided with an · attribute, be provided with an · relationship or be provided with a relationship with the · and the like. The term "controller" means any device, system, or portion thereof that controls at least one operation. Such a controller may be implemented in hardware, or in a combination of hardware and software and/or firmware. The functionality associated with any particular controller may be centralized or distributed, whether locally or remotely. At least one of the phrases "..when used with a list of items means that different combinations of one or more of the listed items can be used and that only one item in the list may be required. For example, "at least one of A, B and C" includes any one of the following combinations: A. b, C, A and B, A and C, B and C, and a and B and C. For example, "at least one of A, B or C" includes any one of the following combinations: A. b, C, A and B, A and C, B and C, and a and B and C.

Furthermore, the various functions described below may be implemented or supported by one or more computer programs, each of which is formed from computer readable program code and embodied in a computer readable medium. The terms "application" and "program" refer to one or more computer programs, software components, sets of instructions, procedures, functions, objects, classes, instances, related data, or portions thereof adapted for implementation in a suitable computer readable program code. The phrase "computer readable program code" includes any type of computer code, including source code, object code, and executable code. The phrase "computer readable medium" includes any type of medium capable of being accessed by a computer, such as Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), a hard disk drive, a Compact Disc (CD), a Digital Video Disc (DVD), or any other type of Memory. "non-transitory" computer-readable media exclude wired, wireless, optical, or other communication links that transmit transitory electrical or other signals. Non-transitory computer readable media include media that can permanently store data and media that can store and later rewrite data, such as rewritable optical disks or erasable memory devices.

The terminology used herein to describe embodiments of the invention is not intended to limit and/or define the scope of the invention. For example, unless otherwise defined, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.

It should be understood that the terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. For example, reference to a "component surface" includes reference to one or more such surfaces.

As used herein, any reference to "one example" or "an example," "one embodiment," or "an embodiment" means that a particular element, feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearances of the phrase "in one embodiment" or "in one example" in various places in the specification are not necessarily all referring to the same embodiment.

As used herein, a "portion of an item" means at least some of the item, and thus may mean less than all of the item or all of the item. Thus, a "portion of an object" includes the entire object as a special case, i.e., the entire object is an example of a portion of an object.

As used herein, the term "set" means one or more. Thus, a collection of items may be a single item or a collection of two or more items.

In the present disclosure, in order to determine whether a specific condition is satisfied, expressions such as "greater than" or "less than" are used as examples, and expressions such as "greater than or equal to" or "less than or equal to" are also applicable, and are not excluded. For example, a condition defined by "greater than or equal to" may be replaced with "greater than" (or vice versa), a condition defined by "less than or equal to" may be replaced with "less than" (or vice versa), and so forth.

It will be further understood that the terms "comprises" and "comprising," and the like, when used in this specification, specify the presence of stated features and advantages, but do not preclude the presence of other features and advantages, and that the terms "comprising" and "include" specify the presence of stated features and advantages, but rather than preclude the presence of other features and advantages. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The various embodiments discussed below for describing the principles of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged wireless communication system. For example, although the following detailed description of embodiments of the present disclosure will be directed to LTE and 5G communication systems, it will be appreciated by those skilled in the art that the main gist of the present disclosure may be applied to other communication systems having similar technical contexts and channel formats with slight modifications without substantially departing from the scope of the present disclosure. The technical solution of the embodiment of the present application may be applied to various communication systems, for example, the communication system may include a global system for mobile communications (global system for mobile communications, GSM) system, a code division multiple access (code division multiple access, CDMA) system, a wideband code division multiple access (wideband code division multiple access, WCDMA) system, a general packet radio service (general packet radio service, GPRS), a long term evolution (long term evolution, LTE) system, an LTE frequency division duplex (frequency division duplex, FDD) system, an LTE time division duplex (time division duplex, TDD), a general mobile communication system (universal mobile telecommunication system, UMTS), a worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, a fifth generation (5th generation,5G) system, or a New Radio (NR), etc. In addition, the technical scheme of the embodiment of the application can be applied to future-oriented communication technology. In addition, the technical scheme of the embodiment of the application can be applied to future-oriented communication technology.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that the same reference numerals in different drawings will be used to refer to the same elements already described.

Fig. 1-3B below describe various embodiments implemented in a wireless communication system using orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) or orthogonal frequency division multiple access (orthogonal frequency division multiple access, OFDMA) communication techniques. The description of fig. 1-3B is not meant to imply architectural or physical implications with respect to the manner in which different embodiments may be implemented. The various embodiments of the present disclosure may be implemented in any suitably arranged communication system.

Fig. 1 illustrates an example wireless network 100 according to some embodiments of the disclosure. The embodiment of the wireless network 100 shown in fig. 1 is for illustration only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

The wireless network 100 includes a gndeb (gNB) 101, a gNB 102, and a gNB 103.gNB 101 communicates with gNB 102 and gNB 103. The gNB 101 is also in communication with at least one Internet Protocol (IP) network 130, such as the Internet, a private IP network, or other data network.

Other well-known terms, such as "base station" or "access point", can be used instead of "gnob" or "gNB", depending on the network type. For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to the network infrastructure components that provide wireless access for remote terminals. Also, other well-known terms, such as "mobile station", "subscriber station", "remote terminal", "wireless terminal" or "user equipment", can be used instead of "user equipment" or "UE", depending on the type of network. For example, the terms "terminal," "user equipment," and "UE" may be used in this patent document to refer to a remote wireless device that wirelessly accesses the gNB, whether the UE is a mobile device (such as a mobile phone or smart phone) or a fixed device (such as a desktop computer or vending machine) as is commonly considered.

The gNB 102 provides wireless broadband access to the network 130 for a first plurality of User Equipment (UEs) within the coverage area 120 of the gNB 102. The first plurality of UEs includes: UE 111, which may be located in a Small Business (SB); UE 112, which may be located in enterprise (E); UE 113, may be located in a WiFi Hotspot (HS); UE 114, which may be located in a first home (R); UE 115, which may be located in a second home (R); UE 116 may be a mobile device (M) such as a cellular telephone, wireless laptop, wireless PDA, etc. The gNB 103 provides wireless broadband access to the network 130 for a second plurality of UEs within the coverage area 125 of the gNB 103. The second plurality of UEs includes UE 115 and UE 116. In some embodiments, one or more of the gNBs 101-103 are capable of communicating with each other and with UEs 111-116 using 5G, long Term Evolution (LTE), LTE-A, wiMAX, or other advanced wireless communication technology.

The dashed lines illustrate the approximate extent of coverage areas 120 and 125, which are shown as approximately circular for illustration and explanation purposes only. It should be clearly understood that coverage areas associated with the gnbs, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gnbs and the variations in the radio environment associated with natural and man-made obstructions.

As described in more detail below, one or more of gNB101, gNB 102, and gNB 103 includes a 2D antenna array as described in embodiments of the disclosure. In some embodiments, one or more of gNB101, gNB 102, and gNB 103 support codebook designs and structures for systems with 2D antenna arrays.

Although fig. 1 shows one example of a wireless network 100, various changes can be made to fig. 1. For example, the wireless network 100 can include any number of gnbs and any number of UEs in any suitable arrangement. Also, the gNB101 is capable of communicating directly with any number of UEs and providing those UEs with wireless broadband access to the network 130. Similarly, each gNB 102-103 is capable of communicating directly with the network 130 and providing direct wireless broadband access to the network 130 to the UE. Furthermore, the gnbs 101, 102, and/or 103 can provide access to other or additional external networks (such as external telephone networks or other types of data networks).

Fig. 2A and 2B illustrate example wireless transmit and receive paths according to some embodiments of the present disclosure. In the following description, transmit path 200 can be described as implemented in a gNB (such as gNB 102), while receive path 250 can be described as implemented in a UE (such as UE 116). However, it should be understood that the receive path 250 can be implemented in the gNB and the transmit path 200 can be implemented in the UE. In some embodiments, receive path 250 is configured to support codebook designs and structures for systems with 2D antenna arrays as described in embodiments of the present disclosure.

The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an inverse N-point fast fourier transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, an add cyclic prefix block 225, and an up-converter (UC) 230. The receive path 250 includes a down-converter (DC) 255, a remove cyclic prefix block 260, a serial-to-parallel (S-to-P) block 265, an N-point Fast Fourier Transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decoding and demodulation block 280.

In transmit path 200, a channel coding and modulation block 205 receives a set of information bits, applies coding, such as Low Density Parity Check (LDPC) coding, and modulates input bits, such as with Quadrature Phase Shift Keying (QPSK) or Quadrature Amplitude Modulation (QAM), to generate a sequence of frequency domain modulation symbols. A serial-to-parallel (S-to-P) block 210 converts (such as demultiplexes) the serial modulation symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT/FFT points used in the gNB 102 and UE 116. The N-point IFFT block 215 performs an IFFT operation on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 220 converts (such as multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. The add cyclic prefix block 225 inserts a cyclic prefix into the time domain signal. Up-converter 230 modulates (such as up-converts) the output of add cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at baseband before being converted to RF frequency.

The RF signal transmitted from the gNB 102 reaches the UE 116 after passing through the wireless channel, and an operation inverse to that at the gNB 102 is performed at the UE 116. Down-converter 255 down-converts the received signal to baseband frequency and remove cyclic prefix block 260 removes the cyclic prefix to generate a serial time domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal to a parallel time-domain signal. The N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency domain signals. Parallel-to-serial block 275 converts the parallel frequency domain signals into a sequence of modulated data symbols. The channel decoding and demodulation block 280 demodulates and decodes the modulation symbols to recover the original input data stream.

Each of the gnbs 101-103 may implement a transmit path 200 that is similar to transmitting to UEs 111-116 in the downlink and may implement a receive path 250 that is similar to receiving from UEs 111-116 in the uplink. Similarly, each of the UEs 111-116 may implement a transmit path 200 for transmitting to the gNBs 101-103 in the uplink and may implement a receive path 250 for receiving from the gNBs 101-103 in the downlink.

Each of the components in fig. 2A and 2B can be implemented using hardware alone, or using a combination of hardware and software/firmware. As a specific example, at least some of the components in fig. 2A and 2B may be implemented in software, while other components may be implemented by configurable hardware or a mixture of software and configurable hardware. For example, the FFT block 270 and IFFT block 215 may be implemented as configurable software algorithms, wherein the value of the point number N may be modified depending on the implementation.

Further, although described as using an FFT and an IFFT, this is illustrative only and should not be construed as limiting the scope of the present disclosure. Other types of transforms can be used, such as Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions. It should be appreciated that for DFT and IDFT functions, the value of the variable N may be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of the variable N may be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

Although fig. 2A and 2B show examples of wireless transmission and reception paths, various changes may be made to fig. 2A and 2B. For example, the various components in fig. 2A and 2B can be combined, further subdivided, or omitted, and additional components can be added according to particular needs. Also, fig. 2A and 2B are intended to illustrate examples of the types of transmit and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communications in a wireless network.

Fig. 3A illustrates an example UE 116 according to some embodiments of the disclosure. The embodiment of UE 116 shown in fig. 3A is for illustration only, and UEs 111-115 of fig. 1 can have the same or similar configuration. However, the UE has a variety of configurations, and fig. 3A does not limit the scope of the present disclosure to any particular implementation of the UE.

UE 116 includes an antenna 305, a Radio Frequency (RF) transceiver 310, transmit (TX) processing circuitry 315, a microphone 320, and Receive (RX) processing circuitry 325.UE 116 also includes speaker 330, processor/controller 340, input/output (I/O) interface 345, input device(s) 350, display 355, and memory 360. Memory 360 includes an Operating System (OS) 361 and one or more applications 362.

RF transceiver 310 receives an incoming RF signal from antenna 305 that is transmitted by the gNB of wireless network 100. The RF transceiver 310 down-converts the incoming RF signal to generate an Intermediate Frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuit 325, where RX processing circuit 325 generates a processed baseband signal by filtering, decoding, and/or digitizing the baseband or IF signal. The RX processing circuit 325 sends the processed baseband signals to a speaker 330 (such as for voice data) or to a processor/controller 340 (such as for web-browsing data) for further processing.

TX processing circuitry 315 receives analog or digital voice data from microphone 320 or other outgoing baseband data (such as network data, email, or interactive video game data) from processor/controller 340. TX processing circuitry 315 encodes, multiplexes, and/or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceiver 310 receives outgoing processed baseband or IF signals from TX processing circuitry 315 and up-converts the baseband or IF signals to RF signals for transmission via antenna 305.

Processor/controller 340 can include one or more processors or other processing devices and execute OS361 stored in memory 360 to control the overall operation of UE 116. For example, processor/controller 340 may be capable of controlling the reception of forward channel signals and the transmission of reverse channel signals by RF transceiver 310, RX processing circuit 325, and TX processing circuit 315 in accordance with well-known principles. In some embodiments, processor/controller 340 includes at least one microprocessor or microcontroller.

Processor/controller 340 is also capable of executing other processes and programs resident in memory 360, such as operations for channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of the present disclosure. Processor/controller 340 is capable of moving data into and out of memory 360 as needed to perform the process. In some embodiments, the processor/controller 340 is configured to execute the application 362 based on the OS361 or in response to a signal received from the gNB or operator. The processor/controller 340 is also coupled to an I/O interface 345, where the I/O interface 345 provides the UE 116 with the ability to connect to other devices, such as laptop computers and handheld computers. I/O interface 345 is the communication path between these accessories and processor/controller 340.

The processor/controller 340 is also coupled to an input device(s) 350 and a display 355. An operator of UE116 can input data into UE116 using input device(s) 350. Display 355 may be a liquid crystal display or other display capable of presenting text and/or at least limited graphics (such as from a website). Memory 360 is coupled to processor/controller 340. A portion of memory 360 can include Random Access Memory (RAM) and another portion of memory 360 can include flash memory or other Read Only Memory (ROM).

Although fig. 3A shows one example of UE116, various changes can be made to fig. 3A. For example, the various components in FIG. 3A can be combined, further subdivided, or omitted, and additional components can be added according to particular needs. As a particular example, the processor/controller 340 can be divided into multiple processors, such as one or more Central Processing Units (CPUs) and one or more Graphics Processing Units (GPUs). Also, while fig. 3A shows the UE116 configured as a mobile phone or smart phone, the UE can be configured to operate as other types of mobile or stationary devices.

Fig. 3B illustrates an example gNB 102, according to some embodiments of the disclosure. The embodiment of the gNB 102 shown in FIG. 3B is for illustration only, and other gNBs of FIG. 1 can have the same or similar configuration. However, the gNB has a variety of configurations, and fig. 3B does not limit the scope of the disclosure to any particular implementation of the gNB. Note that gNB 101 and gNB 103 can include the same or similar structures as gNB 102.

As shown in fig. 3B, the gNB 102 includes a plurality of antennas 370a-370n, a plurality of RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and Receive (RX) processing circuitry 376. In certain embodiments, one or more of the plurality of antennas 370a-370n comprises a 2D antenna array. The gNB 102 also includes a controller/processor 378, a memory 380, and a backhaul or network interface 382.

The RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by UEs or other gnbs, from antennas 370a-370 n. The RF transceivers 372a-372n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signal is sent to RX processing circuit 376, where RX processing circuit 376 generates a processed baseband signal by filtering, decoding, and/or digitizing the baseband or IF signal. The RX processing circuit 376 sends the processed baseband signals to a controller/processor 378 for further processing.

TX processing circuitry 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from controller/processor 378. TX processing circuitry 374 encodes, multiplexes, and/or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceivers 372a-372n receive the outgoing processed baseband or IF signals from the TX processing circuitry 374 and up-convert the baseband or IF signals to RF signals for transmission via the antennas 370a-370 n.

The controller/processor 378 can include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, controller/processor 378 may be capable of controlling the reception of forward channel signals and the transmission of backward channel signals via RF transceivers 372a-372n, RX processing circuit 376, and TX processing circuit 374 in accordance with well-known principles. The controller/processor 378 is also capable of supporting additional functions, such as higher-level wireless communication functions. For example, the controller/processor 378 can perform a Blind Interference Sensing (BIS) process such as that performed by a BIS algorithm and decode the received signal from which the interference signal is subtracted. Controller/processor 378 may support any of a variety of other functions in gNB 102. In some embodiments, controller/processor 378 includes at least one microprocessor or microcontroller.

Controller/processor 378 is also capable of executing programs and other processes residing in memory 380, such as a basic OS. Controller/processor 378 is also capable of supporting channel quality measurements and reporting for systems having 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, the controller/processor 378 supports communication between entities such as web RTCs. Controller/processor 378 is capable of moving data into and out of memory 380 as needed to perform the process.

The controller/processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems through a backhaul connection or through a network. The backhaul or network interface 382 can support communication through any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as one supporting 5G or new radio access technologies or NR, LTE, or LTE-a), the backhaul or network interface 382 can allow the gNB 102 to communicate with other gnbs over wired or wireless backhaul connections. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 can allow the gNB 102 to communicate with a larger network (such as the internet) through a wired or wireless local area network or through a wired or wireless connection. The backhaul or network interface 382 includes any suitable structure, such as an ethernet or RF transceiver, that supports communication over a wired or wireless connection.

A memory 380 is coupled to the controller/processor 378. A portion of memory 380 can include RAM and another portion of memory 380 can include flash memory or other ROM. In some embodiments, a plurality of instructions, such as BIS algorithms, are stored in memory. The plurality of instructions are configured to cause the controller/processor 378 to perform a BIS process and decode the received signal after subtracting the at least one interfering signal determined by the BIS algorithm.

As described in more detail below, the transmit and receive paths of the gNB 102 (implemented using the RF transceivers 372a-372n, TX processing circuitry 374, and/or RX processing circuitry 376) support aggregated communications with FDD and TDD cells.

Although fig. 3B shows one example of the gNB 102, various changes may be made to fig. 3B. For example, the gNB 102 can include any number of each of the components shown in FIG. 3A. As a particular example, the access point can include a number of backhaul or network interfaces 382, and the controller/processor 378 can support routing functions to route data between different network addresses. As another particular example, while shown as including a single instance of TX processing circuitry 374 and a single instance of RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

As used herein, a "terminal" or "terminal device" includes both a device of a wireless signal receiver having no transmitting capability and a hardware device of receiving and transmitting having a hardware device capable of receiving and transmitting bi-directional communications over a bi-directional communication link, as will be appreciated by those skilled in the art. Such a device may include: a cellular or other communication device having a single-line display or a multi-line display or a cellular or other communication device without a multi-line display; PCS (personal communications system) that may combine voice, data processing, facsimile and/or data communications capabilities; a PDA (personal digital assistant) that may include a radio frequency receiver, pager, internet/intranet access, web browser, notepad, calendar, and/or GPS (global positioning system) receiver; a conventional laptop and/or palmtop computer or other appliance that has and/or includes a radio frequency receiver. As used herein, "terminal," "terminal device" may be portable, transportable, installed in a vehicle (aeronautical, maritime, and/or land-based), or adapted and/or configured to operate locally and/or in a distributed fashion, to operate at any other location(s) on earth and/or in space. The "terminal" and "terminal device" used herein may also be a communication terminal, a network access terminal, and a music/video playing terminal, for example, may be a PDA, a MID (mobile internet device), and/or a mobile phone with a music/video playing function, and may also be a smart tv, a set-top box, and other devices.

With the rapid development of the information industry, especially the growing demand from the mobile internet and internet of things (IoT, internet of things), the future mobile communication technology is challenged unprecedented. As per the international telecommunications union (International Telecommunication Union, ITU) report ITU-R M [ imt. Beyond 2020.Traffic ], it can be expected that in 2020, mobile traffic will increase approximately 1000 times as compared to 2010 (4G age), UE connections will also exceed 170 billions, and the number of connected devices will be even more dramatic as massive IoT devices gradually penetrate mobile communication networks. To address this unprecedented challenge, the communications industry and academia have developed extensive fifth generation mobile communication technology (5G) research to face the 2020 s. The framework and overall goals of future 5G have been discussed in ITU report ITU-R M [ imt.vision ], where the requirements expectations, application scenarios and important performance metrics of 5G are specified. For new demands in 5G, ITU report ITU-R M [ imt.future TECHNOLOGY TRENDS ] provides information about technical trends for 5G, aiming at solving significant problems of significant improvement of system throughput, user experience consistency, scalability to support IoT, latency, energy efficiency, cost, network flexibility, support of emerging services, flexible spectrum utilization, etc. In 3GPP (3 rd Generation Partnership Project, third generation partnership project), work on the first phase of 5G is already underway. To support more flexible scheduling, 3GPP decides to support variable hybrid automatic repeat request-Acknowledgement (HARQ-ACK) feedback delay in 5G. In existing long term evolution (Long Term Evolution, LTE) systems, the time of uplink transmission from the reception of HARQ-ACK of downlink data is fixed, for example, in frequency division duplex (Frequency Division Duplex, FDD) systems, the delay is 4 subframes, and in time division duplex (Time Division Duplex, TDD) systems, one HARQ-ACK feedback delay is determined for the corresponding downlink subframe according to the uplink and downlink configuration. In a 5G system, whether FDD or TDD, the uplink time units (e.g., PUCCH time units) that can feed back HARQ-ACKs are variable for one determined downlink time unit (e.g., downlink time slot or downlink mini-slot; also e.g., PDSCH time unit). For example, the time delay of the HARQ-ACK feedback may be dynamically indicated by the physical layer signaling, or different HARQ-ACK time delays may be determined according to different services or factors such as user capability.

The 3GPP defines three major directions for 5G application scenarios-eMBB (enhanced mobile broadband ), mMTC (massive machine-type communication), URLLC (ultra-reliable and low-latency communication), ultra-reliable and low-latency communications. The eMBB scene aims at further improving the data transmission rate on the basis of the existing mobile broadband service scene so as to improve the user experience, thereby seeking the extreme communication experience among people. mctc and URLLC are application scenarios such as internet of things, but each emphasis is different: mctc is mainly information interaction between people and objects, and URLLC mainly reflects the communication requirement between objects.

In some cases, the UE may receive one DCI format, which may not schedule PDSCH, or may schedule PDSCH of multiple serving cells, where the UE cannot determine the one-to-one correspondence of the DCI format to the serving cell. For the ordering of the DCI formats, the count of DAI needs to determine the serving cell corresponding to the DCI format one by one, and how to determine the downlink serving cell corresponding to the DCI format is a problem to be solved.

When multiple DCI formats can be received at one PDCCH listening occasion to schedule PDSCH of the same serving cell, or when one PDCCH listening occasion can be received to schedule PDSCH of multiple serving cells, how to determine the order of DCI formats and how to determine the last DCI format is a problem to be solved.

In some cases, the UE may be configured by higher layer signaling to support one DCI format to schedule multiple serving cells (e.g., schedule PDSCH and/or PUSCH on multiple serving cells), and how to generate HARQ-ACK codebook is a problem to be solved when the UE receives one DCI format to schedule PDSCH of multiple serving cells.

To address at least one or more of the above technical problems, embodiments of the present disclosure provide a method performed by a terminal, a method performed by a base station, and a non-transitory computer-readable storage medium in a wireless communication system. Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

In an embodiment of the present disclosure, for convenience of description, a first transceiving node and a second transceiving node are defined. For example, the first transceiving node may be a base station and the second transceiving node may be a UE. In the following examples, a first transceiving node is illustrated by way of example (but not limited to) a base station, and a second transceiving node is illustrated by way of example (but not limited to) a UE.

Exemplary embodiments of the present disclosure are further described below with reference to the accompanying drawings.

The text and drawings are provided as examples only to assist the reader in understanding the present disclosure. They are not intended, nor should they be construed, to limit the scope of the present disclosure in any way. While certain embodiments and examples have been provided, it will be apparent to those of ordinary skill in the art from this disclosure that variations can be made to the embodiments and examples shown without departing from the scope of the disclosure.

Fig. 4 illustrates a block diagram of a second transceiving node according to an embodiment of the present disclosure.

Referring to fig. 4, the second transceiving node 400 may include a transceiver 401 and a controller 402.

The transceiver 401 may be configured to receive first data and/or first control signaling from the first transceiver node and to send second data and/or second control signaling to the first transceiver node at a determined time unit.

The controller 402 may be an application specific integrated circuit or at least one processor. The controller 402 may be configured to control the overall operation of the second transceiving node, as well as to control the second transceiving node to implement the methods presented in the embodiments of the present disclosure. For example, the controller 402 may be configured to determine the second data and/or the second control signaling and a time unit for transmitting the second data and/or the second control signaling based on the first data and/or the first control signaling, and to control the transceiver 401 to transmit the second data and/or the second control signaling to the first transceiving node at the determined time unit.

In some implementations, the controller 402 may be configured to perform one or more operations of the methods of the various embodiments described below. For example, the controller 402 may be configured to perform one or more of the operations of the method 500 described later in connection with fig. 5, the method 900 described in connection with fig. 9, the method 1000 described in connection with fig. 10, the method 1100 described in connection with fig. 11.

In some embodiments, the first data may be data that the first transceiving node transmits to the second transceiving node. In the following examples, the first data is described by taking downlink data carried by PDSCH (Physical Downlink Shared Channel ) as an example, but not limited to.

In some embodiments, the second data may be data transmitted by the second transceiving node to the first transceiving node. In the following example, the second data is described by taking uplink data carried by PUSCH (Physical Uplink Shared Channel ) as an example (but not limited to).

In some embodiments, the first control signaling may be control signaling sent by the first transceiver node to the second transceiver node. In the following examples, the first control signaling is illustrated by way of example (but not limitation) with respect to the downlink control signaling. The downlink control signaling may be DCI (Downlink control information ) carried over PDCCH (Physical Downlink Control Channel, physical downlink control channel) and/or control signaling carried over PDSCH (Physical Downlink Shared Channel ). For example, the DCI may be a UE-specific (UE specific) DCI, and the DCI may also be a common DCI, which may be a DCI common to some UEs, for example, a group common (group common) DCI, and the common DCI may also be a DCI common to all UEs. The DCI may be uplink DCI (e.g., DCI scheduling PUSCH) and/or downlink DCI (e.g., DCI scheduling PDSCH).

In some embodiments, the second control signaling may be control signaling sent by the second transceiver node to the first transceiver node. In the following examples, the second control signaling is illustrated by way of example (but not limitation) with respect to the uplink control signaling. The uplink control signaling may be UCI (Uplink Control Information ) carried over PUCCH (Physical Uplink Control Channel, physical uplink control channel) and/or control signaling carried over PUSCH (Physical Uplink Shared Channel ). The type of UCI may include one or more of the following: HARQ-ACK information, SR (Scheduling Request ), LRR (Link Recovery Request, link recovery request), CSI (Chanel State Information, channel state information), or CG (Configured grant) UCI. In embodiments of the present disclosure, UCI may be used interchangeably with PUCCH when UCI is carried by PUCCH.

In some embodiments, the PUCCH carrying the SR may be a PUCCH carrying positive SR (positive SR) and/or negative SR (negative SR). The SRs may be positive SRs and/or negative SRs.

In some embodiments, the CSI may also be Part 1CSI (first partial CSI) and/or Part2CSI (second partial CSI).

In some embodiments, the first time unit is a time unit when the first transceiving node transmits the first data and/or the first control signaling. In the following examples, the first time unit is described taking a downlink time unit or downlink time slot as an example (but not limited to).

In some embodiments, the second time unit is a time unit when the second transceiving node transmits the second data and/or the second control signaling. In the following examples, the second time unit is described taking an uplink time unit or uplink time slot or PUCCH time slot or PCell (primary cell) time slot or PUCCH time slot on PCell as an example, but not limited to. The 'PUCCH slot' may be understood as a PUCCH transmission slot.

In some embodiments, the first time unit and the second time unit may be one or more slots (slots), one or more sub-slots (sub-slots), one or more OFDM symbols, one or more time periods (spans), or one or more subframes (subframes).

Herein, the term "base station" or "BS" may refer to any component (or collection of components) configured to provide wireless access to a network, such as a transmission point (Transmission Point, TP), a transmission-reception point (Transmission and Reception Point, TRP), an enhanced base station (eNodeB or eNB), a 5G base station (gNB), a macrocell, a femtocell, a WiFi Access Point (AP), or other wirelessly enabled device, depending on the network type. The base station may provide wireless access according to one or more wireless communication protocols, e.g., 5G 3GPP New radio interface/Access (NR), long Term Evolution (LTE), LTE-advanced (LTE-A), high Speed Packet Access (HSPA), wi-Fi 802.11a/b/g/n/ac, etc.

In describing the wireless communication system and in the present disclosure described below, the higher layer signaling or higher layer signals may be a signaling method for transferring information from the base station to the terminal through a downlink data channel of the physical layer or transferring information from the terminal to the base station through an uplink data channel of the physical layer, and examples of the signaling method may include a signaling method for transferring information through radio resource control (radio resource control, RRC) signaling, packet data convergence protocol (packet data convergence protocol, PDCP) signaling, or medium access control (medium access control, MAC) control element (MAC control element, MAC CE).

Fig. 5 shows a flowchart of a method performed by a UE according to an embodiment of the present disclosure.

Referring to fig. 5, in step S510, the UE may receive downlink data (e.g., downlink data carried through PDSCH) and/or downlink control signaling from the base station. For example, the UE may receive downlink data and/or downlink control signaling from the base station based on predefined rules and/or configuration information (e.g., configuration parameters) that has been received.

In step S520, the UE determines uplink data and/or uplink control signaling and uplink time unit according to the downlink data and/or downlink control signaling.

In step S530, the UE transmits uplink data and/or uplink control signaling to the base station on an uplink time unit.

In some embodiments, acknowledgement/negative acknowledgement (ACK/NACK) for downlink transmission may be performed by HARQ-ACK.

In some embodiments, the downlink control signaling may include DCI carried over PDCCH and/or control signaling carried over PDSCH. For example, DCI may be used to schedule transmission of PUSCH or reception of PDSCH. Some examples of uplink transmission timing will be described below with reference to fig. 6A-6C.

In one example, the UE receives DCI and receives PDSCH according to time domain resources indicated in the DCI. For example, the parameter K0 may be used to represent a time interval between a PDSCH scheduled by DCI and a PDCCH carrying the DCI, and the unit of K0 may be a slot. For example, fig. 6A gives an example of k0=1. In the example shown in fig. 6A, the time interval from the PDSCH scheduled by the DCI to the PDCCH carrying the DCI is 1 slot. In embodiments of the present disclosure, "the UE receiving DCI" may mean "the UE detects DCI".

In another example, the UE receives the DCI and transmits PUSCH according to the time domain resources indicated in the DCI. For example, the time interval between the PUSCH scheduled by the DCI and the PDCCH carrying the DCI may be represented using a timing parameter K2, and the unit of K2 may be a slot. For example, fig. 6B gives an example of k2=1. In the example shown in fig. 6B, the time interval between the PUSCH scheduled by the DCI and the PDCCH carrying the DCI is 1 slot. K2 may also represent a time interval between PDCCH activating CG (configured grant) PUSCH and first CG PUSCH activated. In examples of the present disclosure, PUSCH may be dynamically scheduled (e.g., DCI scheduled) PUSCH (e.g., in embodiments of the present disclosure, may be referred to as DG (dynamic grant) PUSCH) and/or PUSCH not DCI scheduled (e.g., CG PUSCH) if not specifically stated.

In yet another example, the UE receives the PDSCH and may transmit HARQ-ACK information received by the PDSCH on the PUCCH in the uplink time unit. For example, a timing parameter (may also be referred to as a timing value) K1 (e.g., a parameter dl-DataToUL-ACK) may be used to represent a time interval between a PUCCH for transmitting HARQ-ACK information received by a PDSCH and the PDSCH, and a unit of K1 may be an uplink time unit such as a slot or a sub-slot. In case that K1 is a slot in units, the time interval is a slot offset value of a PUCCH for feeding back HARQ-ACK information received by a PDSCH and the PDSCH, and K1 may be referred to as a slot timing value. For example, fig. 6A gives an example of k1=3. Shown in FIG. 6AIn an example of (a), a PUCCH for transmitting HARQ-ACK information received by a PDSCH is separated from the PDSCH by 3 slots. It should be noted that, in the embodiment of the present disclosure, the timing parameter K1 may be equal to the timing parameter K ₁ Used interchangeably, timing parameter K0 may be the same as timing parameter K ₀ Used interchangeably, timing parameter K2 may be the same as timing parameter K ₂ Used interchangeably.

PDSCH may be DCI scheduled PDSCH and/or SPS PDSCH. After the SPS PDSCH is activated by the DCI, the UE may periodically receive the SPS PDSCH. In examples of the present disclosure, SPS PDSCH may be equivalent to PDSCH without DCI/PDCCH scheduling. After the SPS PDSCH is released (deactivated), the UE no longer receives the SPS PDSCH.

The HARQ-ACK in embodiments of the present disclosure may be HARQ-ACK received by SPS PDSCH (e.g., HARQ-ACK without DCI indication) and/or HARQ-ACK indicated by one DCI format (e.g., HARQ-ACK received by PDSCH scheduled by one DCI format).

In yet another example, the UE receives DCI (e.g., DCI indicating SPS (Semi-Persistent Scheduling, semi-persistent scheduling) PDSCH release (deactivation)) and may transmit HARQ-ACK information of the DCI on a PUCCH of an uplink time unit. For example, a time interval between a PUCCH for transmitting HARQ-ACK information of DCI and the DCI may be represented using a timing parameter K1, and a unit of K1 may be an uplink time unit such as a slot or sub-slot. For example, fig. 6C gives an example of k1=3. In the example of fig. 6C, the time interval between the PUCCH for transmitting the HARQ-ACK information of the DCI and the DCI is 3 slots. For example, a time interval of PDCCH reception carrying DCI indicating SPS PDSCH release (deactivation) and PUCCH to which HARQ-ACK is fed back may be represented using a timing parameter K1.

In some embodiments, the UE may report (or send) or indicate the UE capability to the base station at step S520. For example, the UE reports (or transmits) UE capabilities to the base station by transmitting PUSCH. In this case, the PUSCH transmitted by the UE includes UE capability information.

In some embodiments, the base station may configure higher layer signaling for the UE based on UE capabilities previously received from the UE (e.g., in step S510 in a previous downlink-uplink transmission procedure). For example, the base station configures higher layer signaling for the UE by transmitting the PDSCH. In this case, the PDSCH transmitted by the base station includes higher layer signaling configured for the UE. It should be noted that the higher layer signaling is higher layer signaling than the physical layer signaling, and for example, the higher layer signaling may include RRC signaling and/or MAC CE.

In some embodiments, the downlink channel (downlink resource) may include a PDCCH and/or PDSCH. The uplink channel (uplink resource) may include PUCCH and/or PUSCH.

In NR, the bandwidth of the UE may change dynamically. The base station may configure a plurality of BWP (Bandwidth Part) for the UE through higher layer signaling. The base station may activate one BWP of the plurality of BWP. For example, the activated BWP may be an active BWP. The base station may also indicate a switch from the current active BWP to another BWP (which may be referred to as an active BWP switch or change, or simply a BWP switch or change) through signaling (e.g., DCI). For example, the other BWP switched to becomes an active BWP. When the UE receives the indication of the BWP handover, the activated BWP is deactivated and the other BWP is activated. Fig. 7 shows an example of BWP switching according to the disclosed embodiment. As shown in fig. 7. The first time unit, the traffic of the UE is larger, the system configures a large bandwidth (BWP 1) for the UE; the second time unit has smaller traffic of the UE, and the system configures a small bandwidth (BWP 2) for the UE, so as to meet the basic communication requirement; in the third time unit, the system finds that there is a wide frequency selective fading in the bandwidth where BWP1 is located, or that the resource in the frequency range where BWP1 is located is relatively short, so that a new bandwidth (BWP 3) is configured for the UE.

The UE only needs to employ the center frequency point and the sampling rate of the corresponding BWP in the corresponding BWP. Moreover, each BWP is not just different in frequency point and bandwidth, and each BWP may correspond to a different configuration. For example, the subcarrier spacing, CP type, SSB (Synchronization Signal and PBCH block ) (including primary synchronization signal (Primary Synchronization Signal, PSS), secondary synchronization signal (Secondary Synchronization Signal, SSS) and PBCH) period, etc. of each BWP may be configured differently to accommodate different traffic.

In some embodiments, the UE may be configured with two levels of priority for uplink transmissions. For example, UCI of different priorities may be multiplexed by a higher layer signaling configuration (e.g., by a parameter UCI-muxwithdiffentintpriority) UE; otherwise (e.g., if the UE is not configured to multiplex UCI of different priorities), the UE prioritizes (prioritizes) PUCCH and/or PUSCH of different priorities. For example, the two-level priority may include a first priority and a second priority different from each other. In one example, the first priority may be higher than the second priority, i.e., the first priority is a higher priority and the second priority is a lower priority. In another example, the first priority may be lower than the second priority. However, embodiments of the present disclosure are not limited thereto, e.g., a UE may be configured with priorities of more than two levels. For convenience, in embodiments of the present disclosure, description is made taking into account that the first priority is higher than the second priority. It should be noted that all embodiments of the present disclosure are applicable to a case where the first priority may be higher than the second priority; all embodiments of the present disclosure apply to situations where the first priority may be lower than the second priority; all embodiments of the present disclosure apply to the case where the first priority may be equal to the second priority.

In some examples, multiplexing multiple uplink transmissions (e.g., PUCCH and/or PUSCH) that overlap in the time domain may be multiplexing UCI information in PUCCH into one PUCCH or PUSCH.

In some examples, the UE prioritizing two uplink transmissions (e.g., PUCCH and/or PUSCH) that overlap in the time domain may include the UE transmitting a higher priority uplink transmission (e.g., PUCCH or PUSCH) and the UE not transmitting a lower priority uplink transmission (PUCCH or PUSCH).

In some embodiments, the UE may be configured for sub slot (subslot) -based PUCCH transmission. For example, a sub-slot length parameter (in an embodiment of the present disclosure, may also be referred to as a parameter related to a sub-slot length) of each of the first PUCCH configuration parameter and the second PUCCH configuration parameter (e.g., a parameter subslotLengthForPUCCH) may be 7 OFDM symbols, or 6 OFDM symbols, or 2 OFDM symbols. The sub-slot configuration length parameters in different PUCCH configuration parameters may be configured separately. If no sub-slot length parameter is configured in one PUCCH configuration parameter, the scheduling time unit of the PUCCH configuration parameter is defaulted to be one slot. If a sub-slot length parameter is configured in one PUCCH configuration parameter, the scheduling time unit of this PUCCH configuration parameter is L (L is the configured sub-slot configuration length) OFDM symbols.

The mechanism of the slot-based PUCCH transmission and the sub-slot-based PUCCH transmission is substantially the same, and in the present disclosure, a PUCCH timing (occalation) unit may be represented by a slot (slot); for example, if the UE is configured with a sub-slot, the slot as the PUCCH occasion unit may be replaced with the sub-slot. For example, it may be specified by a protocol that if the UE is configured with a sub-slot length parameter (e.g., the parameter subslotLengthForPUCCH), unless otherwise specified, the number of symbols contained in a slot of a PUCCH transmission is indicated by the sub-slot length parameter.

For example, if the UE is configured with a sub-slot length parameter, sub-slot n is the last uplink sub-slot overlapping with PDSCH reception or PDCCH reception (e.g., SPS PDSCH release, and/or indication of secondary cell dormancy (Scell dorsum), and/or trigger type-3 HARQ-ACK codebook reporting and no scheduled PDSCH reception), HARQ-ACK information for that PDSCH reception or PDCCH reception is transmitted in uplink sub-slot n+k, where K is determined by timing parameter K1 (for definition of timing parameter K1, reference may be made to the previous description). For another example, if the UE is not configured with a sub-slot length parameter, slot n is the last uplink slot overlapping with the downlink slot where the PDSCH or PDCCH is received, HARQ-ACK information for the PDSCH or PDCCH is transmitted in uplink slot n+k, where K is determined by timing parameter K1.

In an embodiment of the present disclosure, unicast may refer to a manner in which a network and one UE communicate, and multicast (multicast or groupcast) may refer to a manner in which a network and a plurality of UEs communicate. For example, the unicast PDSCH may be a PDSCH received by one UE, and scrambling of the PDSCH may be based on a UE-specific radio network temporary identifier (RNTI, radio Network Temporary Identifier), such as a cell-RNTI (C-RNTI). The multicast PDSCH may be PDSCH that more than one UE receives at the same time, and scrambling of the multicast PDSCH may be based on RNTI common to the UE group. For example, the common RNTI for the scrambled UE Group of the multicast PDSCH may include an RNTI (in an embodiment of the present disclosure, may be referred to as a Group RNTI (G-RNTI)) for the dynamically scheduled multicast transmission (e.g., PDSCH) scrambling or an RNTI (in an embodiment of the present disclosure, may be referred to as a Group configuration scheduling RNTI (Group configured scheduling RNTI, G-CS-RNTI)) for the multicast SPS transmission (e.g., SPS PDSCH) scrambling. The G-CS-RNTI and the G-RNTI may be different RNTIs or the same RNTI. UCI of the unicast PDSCH may include HARQ-ACK information, SR, or CSI received by the unicast PDSCH. UCI of the multicast PDSCH may include HARQ-ACK information received by the multicast PDSCH. In embodiments of the present disclosure, "multicast" may also be replaced with "broadcast".

In some embodiments, the HARQ-ACK codebook may include HARQ-ACK information for one or more PDSCH and/or DCI. The UE may generate a HARQ-ACK codebook according to a predefined rule if HARQ-ACK information of one or more PDSCH and/or DCI is transmitted in the same uplink time unit. For example, if one PDSCH is successfully decoded, the HARQ-ACK information received by this PDSCH is a positive ACK. For example, a positive ACK may be denoted by 1 in the HARQ-ACK codebook. If one PDSCH is not successfully decoded, the HARQ-ACK information received by this PDSCH is Negative ACK (Negative ACK). For example, NACK may be represented by 0 in HARQ-ACK codebook. For example, the UE may generate the HARQ-ACK codebook according to a pseudo code specified by the protocol. In one example, if the UE receives a DCI format indicating SPS PDSCH release (deactivation), the UE transmits HARQ-ACK information (ACK) for the DCI format. In another example, if the UE receives a DCI format indicating that the secondary cell is dormant, the UE transmits HARQ-ACK information (ACK) for the DCI format. In yet another example, if the UE receives a DCI format indicating to transmit HARQ-ACK information (e.g., type-3 HARQ-ACK codebook) of all HARQ-ACK processes of all configured serving cells, the UE transmits HARQ-ACK information of all HARQ-ACK processes of all configured serving cells. In order to reduce the size of the type-3 HARQ-ACK codebook, in the enhanced type-3 HARQ-ACK codebook, the UE may transmit HARQ-ACK information of a specific HARQ-ACK process of a specific serving cell based on the indication of DCI. In yet another example, if the UE receives a DCI format that schedules a PDSCH, the UE transmits HARQ-ACK information received by the PDSCH. In yet another example, the UE receives an SPS PDSCH and the UE transmits HARQ-ACK information received by the SPS PDSCH. In yet another example, if the UE is configured to receive the SPS PDSCH by higher layer signaling, the UE transmits HARQ-ACK information received by the SPS PDSCH. The reception of SPS PDSCH by higher layer signaling configuration may be canceled by other signaling. In yet another example, the UE does not receive the SPS PDSCH if at least one uplink symbol (e.g., OFDM symbol) in a semi-static frame structure configured by higher layer signaling overlaps with a symbol received by the SPS PDSCH. In yet another example, if the UE receives the SPS PDSCH by higher layer signaling configuration according to a predefined rule, the UE transmits HARQ-ACK information received by the SPS PDSCH. It is noted that in embodiments of the present disclosure, overlapping "a" with "B" may mean that "a" and "B" at least partially overlap. That is, "a" overlaps "B" includes the case where "a" and "B" completely overlap. Overlapping "a" and "B" may mean that "a" and "B" overlap in the time domain and/or "a" and "B" overlap in the frequency domain. In some embodiments, if the HARQ-ACK information transmitted by the same uplink time unit does not include HARQ-ACK information of any DCI format, nor does it include dynamically scheduled PDSCH (e.g., PDSCH scheduled by DCI format) and/or HARQ-ACK information of DCI, or the HARQ-ACK information transmitted by the same uplink time unit includes only HARQ-ACK information received by one or more SPS PDSCH, the UE may generate HARQ-ACK information (e.g., HARQ-ACK information received only SPS PDSCH) according to a rule of generating SPS PDSCH HARQ-ACK codebook. The UE may multiplex HARQ-ACK information received only by the SPS PDSCH to a specific PUCCH resource. For example, if the UE is configured with PUCCH List parameters of SPS (e.g., SPS-PUCCH-AN-List), the UE multiplexes HARQ-ACK information received only by SPS PDSCH to PUCCHs in the PUCCH List of the SPS. For example, the UE determines one PUCCH resource in the PUCCH list of the SPS according to the number of bits of the HARQ-ACK. If the UE is not configured with the PUCCH list parameter of SPS, the UE multiplexes HARQ-ACK information received only by SPS PDSCH to one PUCCH resource specific for SPS HARQ-ACK (e.g., the PUCCH resource is configured by n1PUCCH-AN parameter).

In some embodiments, if the HARQ-ACK information transmitted by the same uplink time unit includes HARQ-ACK information of a DCI format, and/or a dynamically scheduled PDSCH (e.g., PDSCH scheduled by the DCI format), the UE may generate HARQ-ACK information according to rules that generate a HARQ-ACK codebook of the dynamically scheduled PDSCH and/or DCI format. For example, the UE may determine to generate a semi-static HARQ-ACK Codebook (e.g., type-1HARQ-ACK Codebook) or a dynamic HARQ-ACK Codebook (e.g., type-2 HARQ-ACK Codebook (Type-2 HARQ-ACK Codebook)) according to PDSCH HARQ-ACK Codebook configuration parameters (e.g., parameters pdsch-HARQ-ACK-Codebook), which may also be an enhanced dynamic HARQ-ACK Codebook (e.g., type-2 HARQ-ACK Codebook based on packet (grouping)) and HARQ-ACK retransmissions). The UE may multiplex the HARQ-ACK information to PUCCH resources of the dynamically scheduled HARQ-ACK, which may be configured in a resource set list parameter (e.g., parameter resourceSetToAddModList). The UE determines one PUCCH resource set (e.g., parameter PUCCH-resource set) in the resource set list according to the number of bits of the HARQ-ACK, and the PUCCH resource may determine one PUCCH in the PUCCH resource set according to a PRI (PUCCH Resource Indicator ) field indication in the last DCI format.

In some embodiments, if the HARQ-ACK information transmitted by the same uplink time unit includes only HARQ-ACK information of the SPS PDSCH (e.g., PDSCH not scheduled by the DCI format), the UE may generate the HARQ-ACK codebook according to a rule of generating the HARQ-ACK codebook received by the SPS PDSCH (e.g., a pseudo code of generating the codebook of the HARQ-ACK received by the SPS PDSCH).

For a semi-static HARQ-ACK codebook (e.g., a type-1 HARQ-ACK codebook), one mayTo determine the size of the HARQ-ACK codebook and the ordering of the HARQ-ACK bits according to semi-statically configured parameters (e.g., parameters of higher layer signaling configurations). For a certain serving cell c, a downlink with part (BWP), an uplink with BWP, the UE determines M for candidate PDSCH reception (candidate PDSCH reception) _A,C Set of individual occasions (occasin), UE uplink slot n _U Corresponding HARQ-ACK information received by the candidate PDSCH is transmitted on one PUCCH in (a).

M _A,c May be determined by at least one of the following:

a) The HARQ-ACK slot timing value K1 of the activated uplink BWP;

b) A downlink Time Domain Resource Allocation (TDRA) table;

c) Uplink and downlink subcarrier spacing (SCS) configuration;

d) Semi-static uplink and downlink frame structure configuration;

e) Downlink slot offset parameters (e.g., parameters) for serving cell c) And its corresponding slot offset SCS (e.g., parameter μ _offset,DL,c ) The slot offset parameter of the primary serving cell (e.g., parameter +.>) And its corresponding slot offset SCS (e.g., parameter μ _offset,UL )。

The parameter K1 is used to determine a candidate uplink timeslot, and then determine a candidate downlink timeslot according to the candidate uplink timeslot. The candidate downlink slot satisfies at least one of the following conditions: (i) If the time unit of the PUCCH is a sub-time slot, at least one candidate PDSCH receiving end position in the candidate downlink time slot overlaps with the candidate uplink time slot in the time domain; or (ii) if the time unit of the PUCCH is a slot, the end position of the candidate downlink slot overlaps with the candidate uplink slot in the time domain. It should be noted that, in the embodiments of the present disclosure, the start symbol and the start position may be used interchangeably, and the end symbol and the end position may be used interchangeably. In some implementations, the start symbol may be replaced with an end symbol, and/or the end symbol may be replaced with a start symbol.

The number of PDSCHs in a candidate downlink slot that need feedback HARQ-ACKs may be determined by the maximum of the number of valid PDSCHs in the downlink slot that do not overlap (e.g., valid PDSCH may be PDSCH that do not overlap with semi-statically configured uplink symbols). The time domain resources occupied by PDSCH may be determined by (i) configuring a time domain resource allocation table (in embodiments of the present disclosure, also referred to as a table associated with time domain resource allocation) by higher layer signaling and (ii) dynamically indicating a certain row in the time domain resource allocation table by DCI. Each row in the time domain resource allocation table may define information related to time domain resource allocation. For example, for a time domain resource allocation table, the indexed rows define timing values (e.g., time unit (e.g., slot) offset (e.g., K0)) of PDCCH and PDSCH, start and Length Indicators (SLIVs), or directly define start symbols and allocation lengths. For example, for the first row of the time domain resource allocation table, the starting OFDM symbol is 0 and the OFDM symbol length is 4; for the second row of the time domain resource allocation table, the starting OFDM symbol is 4 and the OFDM symbol length is 4; for the third row of the time domain resource allocation table, the starting OFDM symbol is 7 and the OFDM symbol length is 4. The DCI scheduling the PDSCH may indicate any one row in the time domain resource allocation table. When the OFDM symbols in the downlink slot are all downlink symbols, the maximum value of the number of valid PDSCH without overlap in the downlink slot is 2. At this time, the type-1 HARQ-ACK codebook may require feedback of HARQ-ACK information for 2 PDSCH in the downlink slot of the serving cell.

Fig. 8A and 8B illustrate examples of time domain resource allocation tables. Specifically, fig. 8A shows a time domain resource allocation table scheduling one PDSCH in one row, and fig. 8B shows a time domain resource allocation table scheduling a plurality of PDSCH in one row. Referring to fig. 8A, each row corresponds to a timing parameter K0 value, a value of S indicating a start symbol, a value of L indicating a length, wherein the value of S and the value of L may determine a SLIV. Referring to fig. 8B, unlike fig. 8A, each row corresponds to a plurality of sets of values of { K0, S, L }.

In some embodiments, a dynamic HARQ-ACK codebook (e.g., a type-2 HARQ-ACK codebook) and/or an enhanced dynamic HARQ-ACK codebook (e.g., a type-2 HARQ-ACK based on packet and HARQ-ACK retransmissions) may determine the size and ordering of the HARQ-ACK codebook according to the allocation index. For example, the allocation index may be DAI (Downlink Assignment Index, downlink allocation index). In the following embodiments, the assignment index DAI is taken as an example. However, embodiments of the present disclosure are not limited thereto and any other suitable allocation index may be employed.

In some implementations, the DAI field includes at least one of a first DAI and a second DAI.

In some examples, the first DAI may be a C-DAI (Counter-DAI, count DAI). The first DAI may indicate an accumulated count of at least one of DCI of the scheduled PDSCH, or DCI indicating SPS PDSCH release (deactivation), or DCI indicating secondary cell dormancy. For example, the accumulated count may be an accumulated count to a current serving cell and/or a current time unit. For example, C-DAI may refer to: the cumulative number of { serving cell, time cell } pairs scheduled by the PDCCH (which may also include the number of PDCCHs (e.g., PDCCHs indicating SPS release, and/or PDCCHs indicating secondary cell dormancy)) until the current time cell within the time window; or the accumulated number of PDCCHs until the current time unit; or the cumulative number of PDSCH transmissions until the current time unit; or by the current serving cell and/or current time unit, there is a cumulative number of { serving cell, time unit } pairs of PDSCH transmissions (e.g., scheduled by PDCCH) and/or PDCCH (e.g., PDCCH indicating SPS release, and/or PDCCH indicating secondary cell dormancy) associated with PDCCH; or to the current serving cell and/or current time unit, the base station has scheduled an accumulated number of PDSCH and/or PDCCH (e.g., PDCCH indicating SPS release, and/or PDCCH indicating secondary cell dormancy) for which there is a corresponding PDCCH; or to the current service cell and/or the current time unit, the base station has scheduled the accumulated number of PDSCH (the PDSCH is the PDSCH with the corresponding PDCCH); or to the current serving cell and/or the current time unit, the base station has scheduled the cumulative number of time units for which there are PDSCH transmissions (the PDSCH is the PDSCH for which there is a corresponding PDCCH). The ordering of the respective bits in the HARQ-ACK codebook corresponding to at least one of PDSCH reception, DCI indicating SPS PDSCH release (deactivation), or DCI indicating secondary cell dormancy may be determined by receiving the time including the first DAI and the first DAI information. The first DAI may be included in a downlink DCI format.

In some examples, the second DAI may be a T-DAI (Total-DAI). The second DAI may indicate a total count of at least one of all PDSCH reception, DCI indicating SPS PDSCH release (deactivation), or DCI indicating secondary cell dormancy. For example, the total count may be the total count of all serving cells to the current time unit. For example, T-DAI may refer to: within the time window, the total number of { serving cell, time cell } pairs scheduled by PDCCH up to the current time cell (which may also include the number of PDCCHs used to indicate SPS release); or the total number of PDSCH transmissions up to the current time unit; or by the current serving cell and/or current time unit, there is a total number of { serving cell, time unit } pairs of PDSCH transmissions (e.g., scheduled by PDCCH) and/or PDCCH (e.g., PDCCH indicating SPS release, and/or PDCCH indicating secondary cell dormancy) associated with PDCCH; or to the current serving cell and/or current time unit, the total number of PDSCHs and/or PDCCHs (e.g., PDCCHs indicating SPS release, and/or PDCCHs indicating secondary cell dormancy) for which there are corresponding PDCCHs that have been scheduled by the base station; or to the current serving cell and/or the current time unit, the total number of PDSCH scheduled by the base station (the PDSCH is the PDSCH with the corresponding PDCCH); or to the current serving cell and/or current time unit, the base station has scheduled the total number of time units for which there are PDSCH transmissions (e.g., the PDSCH is the PDSCH for which there is a corresponding PDCCH). The second DAI may be included in a downlink DCI format and/or an uplink DCI format. The second DAI included in the uplink DCI format is also referred to as UL DAI.

In the following examples, the first DAI is a C-DAI and the second DAI is a T-DAI is illustrated, but not limited to.

Tables 1 and 2 show the DAI field and V _T-DAI,m ，V _C-DAI,c,m Or (b)Corresponding relation of (3). The number of bits for C-DAI and T-DAI is limited.

For example, in the case where the C-DAI or the T-DAI is represented by 2 bits, the value of the C-DAI or the T-DAI in DCI can be determined by the formula in Table 1. V (V) _T-DAI,m Or (b)V for the value of T-DAI in DCI received at PDCCH listening occasion (Monitoring Occasion, MO) m _C-DAI,c,m Is the value of C-DAI in the DCI received on serving cell C at PDCCH listening occasion m. V (V) _T-DAI,m And V _C-DAI,c,m Are related to the number of bits of the DAI field in the DCI. MSB is the most significant bit (Most Significant Bit), LSB is the least significant bit (Least Significant Bit).

TABLE 1

For example, if C-DAI or T-DAI is 1, 5 or 9, as shown in Table 1, each is indicated by "00" in the DAI field, and V is determined by the formula in Table 1 _T-DAI,m Or V _C-DAI,c,m The value of (2) is denoted as "1". Y may represent a value of DAI (a value of DAI before conversion by a formula in the table) corresponding to the number of DCI actually transmitted by the base station.

For example, in the case where the C-DAI or T-DAI in DCI is 1 bit, a value greater than 2 may be represented by the formula in table 2.

TABLE 2

In some embodiments, whether to feedback (or report) HARQ-ACK information may be dynamically indicated by higher layer parameter configuration or DCI. The manner of feeding back (or reporting) the HARQ-ACK information (HARQ-ACK feedback manner or HARQ-ACK reporting manner) may be at least one of the following manners.

HARQ-ACK feedback mode 1: an ACK or NACK (ACK/NACK) is sent. For example, the number of the cells to be processed,

for one PDSCH, if the UE correctly decodes the corresponding transmission block, the UE sends ACK;

and/or if the UE does not decode the corresponding transport block correctly, the UE transmits a NACK. For example, HARQ-ACK according to HARQ-ACK information provided by HARQ-ACK feedback scheme 1

The information bits are either ACK values or NACK values.

HARQ-ACK feedback mode 2: only NACK (NACK-only) is transmitted. For example, for one PDSCH reception, if the UE decodes the corresponding transport block correctly, the UE does not transmit HARQ-

ACK information; and/or if the UE does not decode the corresponding transport block correctly, the UE transmits a NACK. For example, at least one HARQ-ACK information bit of the HARQ-ACK information provided according to the HARQ-ACK feedback scheme 2 is a NACK value. For example, in HARQ-ACK

In feedback scheme 2, the UE does not transmit PUCCH that will include only HARQ-ACK information having an ACK value.

It should be noted that unless the context clearly indicates otherwise, all or one or more of the methods, steps, or operations described by embodiments of the present disclosure may be specified by a protocol and/or configured by higher layer signaling and/or indicated by dynamic signaling. The dynamic signaling may be PDCCH and/or DCI format. For example, for SPS PDSCH and/or CG PUSCH, it may be indicated dynamically in its active DCI/DCI format/PDCCH. All or one or more of the described methods, steps, and operations may be optional. For example, if a certain parameter (e.g., parameter X) is configured, the UE performs a certain mode (e.g., mode a), otherwise (if the parameter is not configured, e.g., parameter X), the UE performs another mode (e.g., mode B). The parameters in the embodiments of the present disclosure may be higher layer parameters, if not specifically stated. For example, the higher layer parameters may be parameters configured or indicated by higher layer signaling (e.g., RRC signaling).

Note that PCell (primary Cell) or PSCell (primary secondary Cell) in the embodiments of the present disclosure may be used interchangeably with cells (cells) having PUCCH.

It should be noted that, the method for downlink in the embodiments of the present disclosure may also be applied to uplink, and the method for uplink may also be applied to downlink. For example, PDSCH may be replaced with PUSCH, SPS PDSCH with CG PUSCH, downlink symbols with uplink symbols, so that the method for downlink may be applicable to uplink.

It should be noted that, in the embodiment of the present disclosure, the method applicable to multiple PDSCH/PUSCH scheduling may also be applicable to PDSCH/PUSCH retransmission. For example, one PDSCH/PUSCH of the plurality of PDSCH/PUSCHs may be replaced with one repetition transmission of the PDSCH/PUSCH multiple repetition transmissions.

It should be noted that in the method of the present disclosure, configuring and/or indicating that the repeated transmission may be understood as the number of repeated transmissions is greater than 1. For example, a PUCCH configured and/or indicated for repeated transmission may be replaced with a PUCCH repeated for transmission on more than one slot/sub-slot. A number of repeated transmissions equal to 1 may be understood as being not configured and/or indicated. For example, the "PUCCH not configured and/or indicating repeated transmission" may be replaced with "PUCCH transmission of the number of repeated transmissions 1". For example, the UE may be configured with parameters related to the number of PUCCH repeated transmissions When the parameter is->When greater than 1, it may mean that the UE is configured with PUCCH retransmission, and the UE may be inEach time unit (e.g. time slot) Upper repetition PUCCH transmission; when the parameter is equal to 1, it may mean that the UE is not configured with PUCCH repeated transmission. For example, the repeated PUCCH may contain only one type of UCI. If the PUCCH is configured with repeated transmissions, in the embodiments of the present disclosure, one repeated transmission of the PUCCH multiple repeated transmissions may be regarded as one PUCCH (or PUCCH resource), or all repeated transmissions of the PUCCH may be regarded as one PUCCH (or PUCCH resource), or a specific repeated transmission of the PUCCH multiple repeated transmissions may be regarded as one PUCCH (or PUCCH resource).

In the method of the present disclosure, one PDCCH and/or DCI format schedules multiple PDSCH/PUSCH, which may be multiple PDSCH/PUSCH of the same serving cell and/or multiple PDSCH/PUSCH of different serving cells.

It should be noted that the various ways described in this disclosure may be combined in any order. In one combination, an approach may be performed one or more times.

It should be noted that the steps in the methods of the present disclosure may be performed in any order.

It should be noted that "cancel transmission" in the method of the present disclosure may be to cancel transmission of the entire uplink channel and/or cancel transmission of a part of the uplink channel.

It should be noted that in the method of the present disclosure, the "order from small to large" (e.g., ascending order) may be replaced with the "order from large to small" (e.g., descending order), and/or the "order from large to small" (e.g., descending order) may be replaced with the "order from small to large" (e.g., ascending order).

It should be noted that, in the method of the present disclosure, the PUCCH/PUSCH carrying a may be understood as the PUCCH/PUSCH carrying only a, and may also be understood as the PUCCH/PUSCH carrying at least a.

It should be noted that, in the embodiments of the present disclosure, "time slots" may be replaced by "sub-time slots" or "time units".

It should be noted that, in the embodiments of the present disclosure, "at least one" may be understood as "one" or "a plurality". In the case of "plural", any combination may be used. For example, at least one of "a", "B", "C" may be: "A", "B", "C", "AB", "BA", "ABC", "CBA", "ABCA", "ABCCB", etc.

It should be noted that the time slots in the embodiments of the present disclosure may be replaced by other time units.

It should be noted that, in the embodiments of the present disclosure, "predefined conditions are satisfied, predefined methods (or steps) are performed" and "predefined conditions are not satisfied, predefined methods (or steps) are not performed" may be used instead. "predefined conditions are satisfied, predefined methods (or steps) are not performed" and "predefined conditions are not satisfied, predefined methods (or steps) are performed" may be used instead.

It should be noted that, in the embodiments of the present disclosure, parameters, information, or configurations may be preconfigured or predefined or configured by a base station. Thus, in some cases, a parameter, information, or configuration may be referred to as a predefined parameter, predefined information, or predefined configuration, respectively. In embodiments of the present disclosure, the meaning of pre-configuring certain information or parameters in the UE may be interpreted as default information or parameters embedded in the UE at the time of manufacturing the UE, or information or parameters pre-acquired and stored in the UE by higher layer signaling (e.g., RRC) configuration, or information or parameters acquired and stored from the base station.

It should be noted that, in the embodiments of the present disclosure, 'HARQ-ACK information bit' and 'HARQ-ACK bit' may be used interchangeably.

In some cases, the UE may receive one DCI format, which may not schedule PDSCH, or may schedule PDSCH of multiple serving cells, where the UE cannot determine the one-to-one correspondence of the DCI format to the serving cell. For the ordering of the DCI formats, the count of DAI needs to determine the serving cell corresponding to the DCI format one by one, and how to determine the downlink serving cell corresponding to the DCI format is a problem to be solved.

In some embodiments, the reference serving cell may be determined according to the manner MN2 if a predefined condition is met. The predetermined condition may be determined for the mode MN 1.

Mode MN1

In some embodiments, the predefined condition may be at least one of the following conditions COND 1-COND 6.

Conditional COND 1-UE receives one DCI format to schedule PDSCH of multiple serving cells.

Conditional COND 2-UE receives one DCI format without scheduling PDSCH.

And (3) the condition COND3 is that the UE receives one DCI format to trigger HARQ-ACK retransmission.

ConD4, the UE receives a DCI format to indicate the secondary cell to deactivate.

And (5) the condition COND5 is that the UE receives a DCI format trigger type-3 HARQ-ACK codebook. The type-3 HARQ-ACK codebook may be a codebook that feeds back HARQ-ACK information for all HARQ processes.

Condition 6-UE receives a DCI format trigger TCI state update (TCI state update)

The above conditions COND1 to COND6 may be further defined as having associated HARQ-ACK information. For example, one DCI format schedules one PDSCH and indicates that its HARQ-ACK information is fed back in one PUCCH. For another example, one DCI format does not schedule PDSCH and indicates HARQ-ACK information is fed back in one PUCCH. At this time, the HARQ-ACK information may be HARQ-ACK information for the DCI format. In other embodiments of the present disclosure, the determination of the ordering rule or the last DCI format may be considered that the multiple DCI formats involved each indicate that its HARQ-ACK information is fed back in one PUCCH.

Mode MN2

In some embodiments, the reference serving cell may be at least one of:

-the smallest (or largest) serving cell of the serving cells in which PDSCH scheduled by the DCI format is located.

The smallest (or largest) serving cell of the serving cells in which PDSCH scheduled by the DCI format is located, where PDSCH is PDSCH that has no overlap in time domain with uplink symbols configured by higher layer signaling (e.g., parameters tdd-UL-DL-configuration common and/or tdd-UL-DL-configuration dedicated).

-the first (or last) serving cell in the set of serving cells indicated by the DCI format.

The serving cell with the smallest index (or the largest index) among the serving cells in which the PDSCH in the serving cell set indicated by the DCI format is located, where the PDSCH is a PDSCH that has no overlap in time domain with uplink symbols configured by higher layer signaling (e.g., parameters tdd-UL-DL-configuration common and/or tdd-UL-DL-configuration configured).

-a serving cell determined based on a carrier indication field (Carrier indicator). For example, if the carrier indication field exists in the DCI format, determining the reference serving cell according to the carrier indication field in the DCI format, and if the carrier indication field does not exist in the DCI format, determining the reference serving cell according to the serving cell where the PDCCH is located.

-a serving cell in which a PDCCH carrying the DCI format is located.

-serving cell where PDSCH scheduled by the DCI format is located.

In some embodiments, the UE may determine at least one of the following from the determined reference serving cell:

ordering of DCI formats. For example, the ordering of DCI formats may be determined in accordance with one or more of the other embodiments of the present disclosure, e.g., one or more of modes MN3-MN 8.

DAI count. For example, the { serving cell, time cell } pair may be determined with the determined reference serving cell when the DAI is counted. In one example, reception of one DCI format by a UE schedules PDSCH of multiple serving cells to be transmitted on the same PUCCH. The serving cell with the smallest index among the scheduled plurality of serving cells may be used as a reference serving cell, and HARQ-ACK bits of PDSCH on the scheduled plurality of serving cells may be ordered in order from small to large according to the index of the serving cell.

PUCCH time units (e.g., slots of PUCCH) carrying HARQ-ACKs. For example, when the UE receives PDSCH with one DCI format scheduling multiple serving cells to transmit on the same PUCCH, the UE determines the slot of the PUCCH according to PDSCH on the reference serving cell and K1 indicated in the DCI format.

The method can simplify the implementation of the UE and the base station by determining the reference service cell, and can reuse the existing mode to determine the last DCI format, DAI count and time slot of the PUCCH carrying HARQ-ACK after determining the reference service cell.

In some embodiments, it may also be specified by the protocol that if one DCI format schedules PDSCH reception, then the reference serving cell is determined according to the manner MN2, and if one DCI format does not schedule PDSCH reception and indicates HARQ-ACK information, then the reference serving cell is the serving cell of the PDCCH carrying that DCI format. Alternatively, if one DCI format schedules PDSCH reception or indicates SPS PDSCH release, the reference serving cell is determined according to the manner MN2, and if one DCI format does not schedule PDSCH reception and indicates HARQ-ACK information and does not indicate SPS PDSCH release, the reference serving cell is the serving cell of the PDCCH carrying the DCI format.

The method for defining the reference cell for the DCI format which is not received by the dispatching PDSCH is simple, and the complexity of UE realization can be reduced.

In some cases, for PUCCH transmissions carrying HARQ-ACK information, the UE may determine one PUCCH resource for the PUCCH transmission. The determination of the PUCCH resource may be based on the last DCI format (e.g., other than SPS-activated DCI) among DCI formats indicating the same time unit (e.g., DCI formats directed to the same time unit through a K1 field (e.g., PDSCH-to-harq_feedback timing indicator field)), where the UE receives (e.g., detects) these DCI formats and transmits corresponding HARQ information for them in the PUCCH. For example, the UE may receive multiple DCI format indications (e.g., indicated by a K1 field in the DCI formats) and transmit HARQ-ACKs in a PUCCH of the same time unit (e.g., the same slot), and the UE may determine a DCI format corresponding to a largest serving cell index among DCI formats received (e.g., detected) at a last PDCCH listening occasion as the last DCI format. When multiple DCI formats can be received at one PDCCH listening occasion to schedule PDSCH of the same serving cell, or when one PDCCH listening occasion can be received to schedule PDSCH of multiple serving cells, how to determine the order of DCI formats and how to determine the last DCI format is a problem to be solved.

In some embodiments, the order of DCI formats may be determined in at least one of the following ways MN 3-MN 6. For example, the UE may determine the last DCI format according to the determined ordering rule and determine the PUCCH resource according to a PUCCH resource indicator (PUCCH resource indicator, PRI) in the last DCI format.

Mode MN3

The detected DCI formats are first numbered (indexed) in ascending order of the time (e.g., start time or end time) of the scheduled PDSCH at the same serving cell of the same PDCCH listening occasion, then (e.g., second) in ascending order of the serving cell index at the same PDCCH listening occasion, and then (e.g., third) in ascending order of the PDCCH listening occasion index.

Mode MN4

If the UE receives PDSCH of one DCI format scheduling a plurality of serving cells, the ordering of the DCI format may be determined according to the serving cell with the largest (or smallest) index among the scheduled serving cells. For example, when detected DCI formats (e.g., at the same PDCCH listening occasion) are numbered (e.g., in the manner MN 3) in ascending order of serving cell indexes, PDSCH of a plurality of serving cells is scheduled for one DCI format among the detected DCI formats, the serving cell for which number (index) is numbered (in the embodiment of the present disclosure, may be referred to as a reference serving cell related to DCI format number (index)) is determined as the serving cell with the largest (or smallest) index among the plurality of serving cells scheduled for the DCI format, and the ordering of the DCI formats may be determined based on the index of the serving cell for numbering.

Mode MN5

If the UE receives a DCI format to schedule PDSCH of multiple serving cells, the DCI format determines the ordering of the DCI format according to the serving cell with the largest index (or smallest index) among the serving cells where the scheduled PDSCH is located, where the PDSCH is a PDSCH with uplink symbols configured with higher layer signaling (e.g., parameters tdd-UL-DL-configuration command and/or tdd-UL-DL-configuration de-configured) that do not overlap in time domain.

Mode MN6

If the UE receives a DCI format (e.g., DCI format 1_1) indicating that the secondary cell is dormant, the DCI format determines a serving cell corresponding to the DCI format according to at least one of the following manners (e.g., determining that the serving cell corresponding to the DCI format is at least one of the following), and determines an ordering of the DCI format according to the determined serving cells:

the serving cell with the largest (or smallest) index among the serving cells configured to sleep (e.g., the serving cell configured with the parameter dormannycroupwithactivetime);

-indicating the largest (or smallest) serving cell among the dormant serving cells by the DCI format;

-indicating the largest (or smallest) serving cell among the dormant serving cells not indicated by the DCI format.

For example, when detected DCI formats (e.g., at the same PDCCH listening occasion) are numbered in ascending order of serving cell index (e.g., in mode MN 1), secondary cell dormancy is indicated for one DCI format among the detected DCI formats, the serving cell for which the number (index) is related (reference serving cell related to the DCI number) may be determined as at least one of the items listed above, and the ordering of the DCI formats may be determined based on the index of the serving cell for the number.

Mode MN7

If the UE receives one DCI format (e.g., DCI format 1_1 or DCI format 1_2) indicating feedback of HARQ-ACKs (e.g., type-3 HARQ-ACK codebook) for all HARQ processes, the DCI format is the last DCI format.

Mode MN8

If the UE receives one DCI format (e.g., DCI format 1_1 or DCI format 1_2) indicates HARQ-ACK retransmission. For example, a UE receiving a DCI format without a scheduled PDSCH in slot n indicates that HARQ-ACKs in slot m are transmitted in slot n+k. The DCI format determines a serving cell to which the DCI format corresponds (e.g., determines that the serving cell to which the DCI format corresponds is at least one of) according to at least one of the following, and determines an ordering of the DCI formats according to the determined serving cells.

Cell index of primary serving cell

Index maximum (or minimum) cell index for higher layer signaling configuration

-the cell index with the largest index +x, where x may be a positive integer, e.g. x equals 1. Alternatively, the DCI format is considered to be the last DCI format of the same PDCCH listening occasion.

-the cell index with the smallest index-x, where x may be a positive integer, e.g. x equals 1. Or,

the DCI format is considered to be the first DCI format of the same PDCCH listening occasion.

It should be noted that the method is also applicable to one DCI format (e.g., DCI format 1_1) indicating that the secondary cell is dormant and/or one DCI format (e.g., DCI format 1_1 or DCI format 1_2) indicating that HARQ-ACKs are fed back for all HARQ processes.

It should be noted that, the last DCI format may be determined according to the ordering rule of the DCI formats in the embodiments of the present disclosure, and the PUCCH resource may be determined according to the PRI in the last DCI format. For example, a PUCCH, e.g., a PUCCH carrying HARQ-ACK information, may be transmitted on the determined PUCCH resource.

In some cases, the UE may receive one or more DCI formats indicating SPS PDSCH release, and/or one or more DCI formats for scheduling PDSCH reception, and/or one or more DCI formats indicating secondary cell dormancy, at the same PDCCH listening occasion, where the ordering rules of these DCI formats need to be defined.

In some cases, at least one of manners MN 3-MN 6 and MN 12-MN 19 may be employed to determine the order of DCIs, to determine the last DCI format (e.g., to determine the DCI format carrying the HARQ-ACK) and/or to determine the order of DAI counts.

Mode MN12

It may be specified by a protocol that, for multiple DCI formats received at the same PDCCH listening occasion, if the multiple DCI formats all correspond to the same serving cell (e.g., reference serving cell; e.g., serving cell where the scheduled PDSCH is located), the DCI format for SPS PDSCH release is indicated before (or after) the DCI format for scheduling PDSCH reception. For multiple DCI formats indicating SPS PDSCH release, the ordering of the DCI formats may be determined according to the order of the indices of the SPS PDSCH indicated in the DCI formats (e.g., ordered in a small-to-large order, again e.g., ordered in a large-to-small order). If a DCI format indicates multiple SPS PDSCH configuration releases, the SPS PDSCH configuration index corresponding to the DCI format may be determined according to the smallest (or largest) index of the multiple SPS PDSCH configurations.

The method specifies the ordering rule of DCI indicating the SPS PDSCH release, can determine the ordering of DAI and/or the determination of PUCCH resources, and can improve the reliability of uplink transmission.

Mode MN13

It may be specified by a protocol that when a plurality of DCI formats satisfy a predefined condition two, a DCI format received by a scheduled PDSCH is either before or after a DCI format received by a non-scheduled PDSCH. It may be specified by a protocol that the UE does not expect to receive multiple DCI formats that satisfy predefined condition three.

The predefined condition two may be at least one of:

-receiving at the same PDCCH listening occasion

Corresponding to the same serving cell (e.g. the same reference serving cell, which can be determined according to the manner MN 2)

The predefined condition three may be a DCI format received on the same PDCCH listening occasion corresponding to the same serving cell without scheduled PDSCH reception.

The method can be used for defining the ordering rule of DCI, defining the ordering of DAI and/or determining the PUCCH resource, and improving the reliability of uplink transmission.

Mode MN14

DCI formats received at the same PDCCH listening occasion corresponding to the same serving cell without scheduled PDSCH reception may be ordered according to the function of the DCI. For example, a DCI format indicating SPS PDSCH release is before or after a DCI format indicating secondary cell dormancy.

The method can be used for defining the ordering rule of DCI, defining the ordering of DAI and/or determining the PUCCH resource, and improving the reliability of uplink transmission.

In some cases, the UE may be configured with one or more G-RNTIs and/or G-CS-RNTIs. The UE may also be configured with different HARQ-ACK feedback manners. The last DCI format may be determined by MN 15-MN 19 determining the multicast DCI format ordering by which PUCCH resources carrying HARQ-ACKs are determined.

Mode MN15

The DCI format corresponding to HARQ-ACK feedback scheme 1 (ACK/NACK) follows the DCI format corresponding to HARQ-ACK feedback scheme 2 (NACK-only). That is, the PUCCH resource is preferentially determined by the DCI format corresponding to HARQ-ACK feedback scheme 1 (ACK/NACK). This may increase the reliability of the HARQ-ACK transmission.

Mode MN16

When the plurality of DCI formats satisfy a predefined condition two (e.g., received at the same PDCCH listening occasion), the values of the G-RNTI or G-CS-RNTI scrambled by the DCI formats are arranged in ascending (or descending) order.

The method can be used for defining the ordering rule of DCI, defining the determination of PUCCH resources and improving the reliability of uplink transmission.

Mode MN17

When the plurality of DCI formats satisfy a predefined condition two (e.g., received at the same PDCCH listening occasion), the G-RNTI scrambled DCI format precedes (or follows) the G-CS-RNTI scrambled DCI format.

The method can be used for defining the ordering rule of DCI, defining the determination of PUCCH resources and improving the reliability of uplink transmission.

Mode MN18

By protocol provision, a DCI format in which the UE does not expect to receive more than one multicast on the same PDCCH listening occasion indicates that HARQ-ACKs are transmitted on the same PUCCH.

The method is simple to implement and can reduce the complexity of UE implementation.

Mode MN19

When a plurality of DCI formats scrambled by the G-CS-RNTI indicating release of the SPS PDSCH are received at the same PDCCH listening occasion, the values of the G-CS-RNTIs scrambled by the DCI formats are arranged in ascending (or descending) order.

The method can be used for defining the ordering rule of DCI, defining the determination of PUCCH resources and improving the reliability of uplink transmission.

In some cases, the UE may be configured by higher layer signaling to support one DCI format to schedule multiple serving cells, and how to generate the HARQ-ACK codebook is a problem to be solved when the UE receives PDSCH of one DCI format to schedule multiple serving cells.

Mode MN9

In some embodiments, if the UE is configured with a semi-static HARQ-ACK codebook, it may be specified by the protocol that the slot interval of any one PDSCH of the PDSCH on the multiple serving cells for which the UE is not expected to be scheduled by one DCI format and the PUCCH from which its HARQ-ACK is transmitted is not within the configured K1 set.

The method can avoid expanding the K1 set for generating the HARQ-ACK codebook when the semi-static HARQ-ACK codebook is configured, and can reduce the realization complexity of the UE and the base station.

Mode MN10

In some embodiments, if the UE is configured with a semi-static HARQ-ACK codebook, a DCI format for scheduling PDSCH on multiple serving cells may be specified by a protocol, and the TDRA table indicated in the DCI format may reuse an existing TDRA table (e.g., parameter PDSCH-timedomainalllocation list in the parameter PDSCH-Config) for each serving cell separately to indicate PDSCH time domain resource allocation for each serving cell.

The method can avoid expanding the TDRA table when the semi-static HARQ-ACK codebook is configured, and can reduce the realization complexity of the UE and the base station.

Note that the method may be applied to a scenario where other HARQ-ACK codebooks are configured, or may not be limited to a scenario where a semi-static HARQ-ACK codebook is configured.

It should be noted that the existing TDRA table that is reused may be the TDRA table corresponding to the active BWP.

Mode MN11

In some embodiments, if the UE is configured with a dynamic HARQ-ACK codebook, or an enhanced dynamic HARQ-ACK codebook. Scheduling one PDSCH for one DCI format and scheduling multiple PDSCH (e.g., PDSCH of multiple serving cells) for one DCI format may generate HARQ-ACK sub-codebooks, respectively. The HARQ-ACK sub-codebook of multiple PDSCH is scheduled for one DCI format, and the number of HARQ-ACK bits corresponding to each DCI format may be determined in the following manner.

-higher layer signalling configuring a parameter indication.

-maximum value of number of PDSCH schedulable by one DCI format. For example, the UE is configured with HARQ spatial multiplexing (HARQ-ACK-SpatialBundlingPUCCH). For another example, one PDSCH contains only one TB (transport block).

-maximum value of number of TBs schedulable by one DCI format. For example, the UE is not configured with HARQ spatial multiplexing (HARQ-ACK-SpatialBundlingPUCCH).

The method can determine the bit quantity of the HARQ-ACK and improve the transmission reliability of the HARQ-ACK codebook.

Mode MN20

In some embodiments, the UE is configured with, or enhanced with, a dynamic HARQ-ACK codebook. If the UE is not configured with HARQ spatial multiplexing (e.g., the UE is not configured with higher layer parameters HARQ-ACK-SpatialBundlingPUCCH), the DCI format of PDSCH for the multiple serving cells may be modulated with the corresponding number of HARQ-ACK bits N that may be the maximum of the number of schedulable TBs. The maximum value of the number of schedulable TBs may be the sum of the number of TBs that may be contained in one PDSCH on each serving cell (e.g., all serving cells in one PUCCH group. For another example, all serving cells in the first set of serving cells).

It should be noted that, in the embodiment of the present disclosure, the first set of serving cells may be a set including serving cells supporting multiple serving cell joint scheduling (for example, a set including serving cells supporting multiple serving cell joint scheduling in one PUCCH group).

When the UE receives one DCI format to schedule PDSCH of a plurality of serving cells, HARQ-ACK bits of each PDSCH may be ordered according to at least one of the following rules.

Ordering rule one: the serving cell index ordered by this DCI format is ordered from small to large (or from large to small). If the number of HARQ-ACK bits M corresponding to the PDSCH of the serving cell scheduled by the DCI format (e.g., M may be the maximum of the number of TBs that the PDSCH of the scheduled serving cell may contain. For example, M may be the sum of the maximum of the number of TBs that one PDSCH corresponding to all the serving cells may contain) is less than N, the UE generates an N-M-bit NACK. The N-M-bit NACK may be located after the M-bit HARQ-ACK information.

And a sorting rule II: the serving cell index order in the first set of serving cells is ordered from small to large (or from large to small). For a serving cell that does not schedule PDSCH, the UE generates a NACK.

For the above rule, if one serving cell is configured to receive a maximum of two TBs (e.g., the higher layer parameter maxnrofcodewordsschedule bydci is configured to 2), the UE generates 2-bit HARQ-ACK information for one PDSCH of this serving cell. If the serving cell does not schedule PDSCH, the UE generates 2-bit HARQ-ACKs as NACK. If the serving cell schedules a PDSCH containing only one TB, the UE generates 2-bit HARQ-ACK information, the first bit being HARQ-ACK information for the TB (e.g., determined from the decoding result of the TB), and the second bit being NACK. If the PDSCH scheduled by the serving cell contains two TBs, the UE generates 2-bit HARQ-ACK information according to the decoding result of the two TBs in the PDSCH.

If one serving cell is configured to receive at most one TB (e.g., higher layer parameter maxnrofcodewordsschedule bydci is configured to 1), the UE generates 1-bit HARQ-ACK information for one PDSCH of this serving cell. If this serving cell does not schedule PDSCH, the UE generates a 1-bit HARQ-ACK as NACK. If this serving cell is scheduled with PDSCH, the UE generates 1-bit HARQ-ACK information according to the decoding result of the TB in the PDSCH.

The method defines the generation mode of the HARQ-ACK codebook, can improve the reliability of HARQ-ACK transmission and improve the frequency spectrum efficiency.

Mode MN21

In some embodiments, the UE is configured with, or enhanced with, a dynamic HARQ-ACK codebook. If at least one serving cell in one PUCCH group or first serving cell set is configured to receive a maximum of two TBs (e.g., the higher layer parameter maxnrofcodewordsschedule bydci is configured to 2), and the UE is not configured with HARQ spatial multiplexing (e.g., the UE is not configured with the higher layer parameter HARQ-ACK-spatialbindingpucch), the DCI format for scheduling multiple PDSCH may be the maximum of the number of schedulable PDSCH bits N multiplied by 2. When the UE receives one DCI format to schedule PDSCH of multiple serving cells, HARQ-ACK bits of each PDSCH may be ordered according to at least one of the ordering rules two or three.

And (3) a sorting rule III: the serving cell index ordered by this DCI format is ordered from small to large (or from large to small). If the number M of HARQ-ACK bits corresponding to the PDSCH of the serving cell scheduled by the DCI format (e.g., M may be the number of PDSCH of the scheduled serving cell multiplied by 2) is less than N, the UE generates an N-M-bit NACK. The N-M-bit NACK may be located after the M-bit HARQ-ACK information.

For either ordering rule two or ordering rule three, the UE generates 2-bit HARQ-ACK information for one PDSCH of this serving cell. If the serving cell does not schedule PDSCH, the UE generates 2-bit HARQ-ACKs as NACK. If the serving cell schedules a PDSCH containing only one TB, the UE generates 2-bit HARQ-ACK information, the first bit being HARQ-ACK information for the TB (e.g., determined from the decoding result of the TB), and the second bit being NACK. If the PDSCH scheduled by the serving cell contains two TBs, the UE generates 2-bit HARQ-ACK information according to the decoding result of the two TBs in the PDSCH.

The method is simple to implement, and can reduce the complexity of the implementation of the UE and the base station.

It should be noted that the TB in the embodiments of the present disclosure may also be replaced with CW (codeword).

It should be noted that, in the embodiment of the present disclosure, the serving cell scheduled may be a serving cell indicated by a DCI format, or a serving cell where an effective PDSCH scheduled by the DCI format is located, and the effective PDSCH may be a PDSCH that is not overlapped with an uplink symbol configured by higher layer signaling (for example, an uplink symbol configured by a parameter tdd-UL-DL-configuration common or tdd-UL-DL-configuration configured).

Mode MN27

In some cases, the UE may be configured with multiple first sets of serving cells, each of which contains one or more of the serving cells that may be scheduled by the same DCI format. In some implementations, the UE is configured with, or enhanced with, a dynamic HARQ-ACK codebook. For a first set of serving cells i, a DCI format 1_3 scheduled multiple PDSCH in the first set of serving cells, the HARQ-ACK bit number (Ni) and ordering of the PDSCH may be determined according to methods of other embodiments of the present disclosure. If Ni is less than Nmax, the UE generates Nmax-Ni NACK bits, which follow the Ni HARQ-ACK bits. Wherein Ni is a positive integer, and Nmax is a positive integer.

The method defines the generation mode of the HARQ-ACK codebook, can improve the reliability of HARQ-ACK transmission and improve the frequency spectrum efficiency.

It should be noted that, if the UE is configured with a plurality of first serving cell sets, "maximum value of number of PDSCH schedulable in DCI format" in the embodiments of the present disclosure may be understood as a maximum value of number of PDSCH schedulable in DCI format for each first serving cell set, or a maximum value of number of PDSCH schedulable in DCI format for each first serving cell set, that is, a maximum value of number of serving cells configured in consideration of each first serving cell set, respectively. "maximum value of the number of TBs schedulable by DCI format" may be understood to correspond to the maximum value of the number of TBs schedulable by DCI format for each first serving cell set, or the maximum value of the number of TBs schedulable by DCI format for each first serving cell set, respectively.

In some cases, the PUCCH may overlap with one or more PUSCHs in the time domain. For example, the one or more PUSCHs may include a PUSCH scheduled by a DCI format (e.g., DCI format 0_0, DCI format 0_2) that schedules one PUSCH and a PUSCH scheduled by a DCI format (e.g., DCI format 0_1) that schedules more than one PUSCH. At least one of the manners MN 22-MN 24 may be employed to determine PUSCH to which UCI (e.g., HARQ-ACK and/or CSI) in the PUCCH is to be multiplexed. It should be noted that the scheduling of more than one PUSCH may be scheduling of multiple PUSCHs of the same serving cell (e.g., UE is configured with multiple PUSCH time domain resource allocation list parameters, e.g., parameter PUSCH-timedomainalllocalized list for multi PUSCH.) and/or scheduling of multiple PUSCHs of different serving cells (e.g., UE is configured with PUSCH time domain resource allocation list parameters of multiple serving cells).

Mode MN22

In some embodiments, if one PUCCH overlaps in the time domain with a PUSCH scheduled by a DCI format (e.g., DCI format 0_0, DCI format 0_2) that schedules one PUSCH and a PUSCH scheduled by a DCI format (e.g., DCI format 0_1) that schedules more than one PUSCH, the UE multiplexes UCI in the PUCCH into one PUSCH scheduled by a DCI format that schedules one PUSCH. Since some fields (e.g., DAI, betaoffset) in a DCI format that schedules more than one PUSCH are identical for multiple PUSCHs scheduled by this DCI format, multiplexing UCI into one PUSCH scheduled by a DCI format that schedules one PUSCH can reduce the number of bits of UCI and improve the reliability of uplink transmission. For example, DCI format 0_1 schedules two PUSCHs overlapping with two different PUCCHs carrying HARQ-ACKs, respectively, in the time domain. For the dynamic HARQ-ACK codebook, the number of HARQ-ACK bits corresponding to the downlink DAI being 2 and 3 is 2 and 3, respectively, there may be only one uplink DAI field when multiplexing the HARQ-ACK to the PUSCH, if the uplink DAI is indicated as 3, and when multiplexing the 2-bit HARQ-ACK codebook to the PUSCH, the number of bits of the HARQ-ACK codebook is extended to 3 according to the uplink DAI field. Multiplexing this HARQ-ACK into one PUSCH scheduled by a DCI format (e.g., uplink DAI indication of 2) that schedules one PUSCH may only produce 2-bit HARQ-ACKs, thereby reducing the number of bits of UCI.

Mode MN23

In some embodiments, if one PUCCH overlaps in the time domain with PUSCH scheduled by DCI format that schedules one PUSCH and PUSCH scheduled by DCI format that schedules more than one PUSCH, the UE multiplexes UCI in the PUCCH into one PUSCH scheduled by DCI format that schedules more than one PUSCH. This can improve the reliability of data transmission in PUSCH scheduled by DCI format scheduling one PUSCH.

It should be noted that the 'DCI format that schedules more than one PUSCH' may be understood as a DCI format in which the number of PUSCHs actually scheduled (or nominally scheduled, e.g., nominally scheduled PUSCHs may be PUSCHs indicated in the DCI format) is more than one, and/or a DCI format in which the number of PUSCHs that may be scheduled is more than one.

Mode MN24

In some embodiments, if there is overlap in the PUSCH time domain scheduled by one PUCCH with multiple different types of DCI formats (e.g., DCI format 0_0, DCI format 0_1, DCI format 0_2), the UE may determine to multiplex UCI in the PUCCH into one PUSCH according to the DCI format type. For example, the UE may preferentially multiplex UCI in the PUCCH into PUSCH scheduled by DCI format 0_2. For another example, the UE may preferentially multiplex UCI in the PUCCH into PUSCH scheduled by DCI format 0_1. For another example, the UE may preferentially multiplex UCI in the PUCCH into PUSCH scheduled by DCI format 0_0. This may increase the flexibility of scheduling.

In some cases, the UE may schedule PDSCH of multiple serving cells by one DCI format (e.g., DCI format 1_3) and/or the UE may schedule PUSCH of multiple serving cells by one DCI format (e.g., DCI format 0_3). It should be noted that DCI format 1_3 and DCI format 0_3 are only exemplary, and other DCI formats may be used. The scheduling mode may be enabled by higher layer parameter configuration (or the UE may be configured to listen to the DCI format). May be configured in a manner MN 25.

Mode MN25

According to some aspects of the manner MN25, the UE may be configured with parameters (e.g., higher layer parameters DCI-Format1-3And0-3-r 18) that indicate PDSCH And/or PUSCH that enable one DCI Format to schedule multiple serving cells. For example, the parameter may be configured by higher layer signaling.

In some embodiments, if the UE is configured with parameters (e.g., higher layer parameters DCI-Format1-3And0-3-r 18) that indicate that one DCI Format is enabled to schedule PDSCH And/or PUSCH of multiple serving cells, the UE may be configured to detect DCI Format 0_3 And/or DCI Format 1_3.

In some embodiments, at least one of the following parameters (e.g., one of the following parameters) may be configured in a DCI format parameter (e.g., higher layer parameter DCI-FormatsExt-r 18):

Formats0-3-And-1-3, e.g. for indicating to listen to PDCCH for DCI format 0_3 And DCI format 1_3

Formats0-2-And-1-2, e.g. for indicating to listen to PDCCH for DCI format 0_2 And DCI format 1_2

Formats0-1-And-1-1And-0-3-And-1-3, e.g. for indicating to listen to PDCCH for DCI format 0_1, DCI format 1_1, DCI format 0_3, DCI format 1_3

Formats0-2-And-1-2And-0-3-And-1-3, e.g. for indicating to listen to PDCCH for DCI format 0_2, DCI format 1_2, DCI format 0_3, DCI format 1_3

Formats0-1-And-1-1And-0-2-And-1-2, e.g. for indicating to listen to PDCCH for DCI format 0_1, DCI format 1_1, DCI format 0_2, DCI format 1_2

Formats0-1-And-1-1And-0-2-And-1-2And0-3-And-1-3, e.g. for indicating to listen to PDCCH for DCI format 0_1, DCI format 1_1, DCI format 0_2, DCI format 1_2

In some embodiments, if the search space set s is a USS set, a DCI format parameter (e.g., higher layer parameter DCI-formats ext-r 18) may indicate to listen to a PDCCH carrying a DCI format, which may be at least one of:

-DCI format 0_2 and DCI format 1_2

DCI format 0_3 and DCI format 1_3

DCI format 0_1, DCI format 1_1, DCI format 0_2, and DCI format 1_2

DCI format 0_1, DCI format 1_1, DCI format 0_3, and DCI format 1_3

DCI format 0_2, DCI format 1_2, DCI format 0_3, and DCI format 1_3

DCI format 0_1, DCI format 1_1, DCI format 0_2, DCI format 1_2, DCI format 0_3, and DCI format 1_3

In some implementations, the configuration (e.g., field) in DCI format 0_3 and/or DCI format 1_3 may include one or more of the following:

NDI field configured separately for each TB, i.e. one corresponding NDI field per TB.

An RV field configured separately for each TB, i.e. one corresponding RV field for each TB.

-a serving cell indicator (or carrier indicator) field (or serving cell set indication field) for indicating one or more serving cells for this DCI format schedule. The serving cell indicator field is exemplified in the embodiments of the present disclosure.

-one TDRA field, wherein a row in the TDRA may indicate a { K0 or K2, PUSCH allocation or PDSCH allocation } set (which may be referred to as a set of TDRA information) of one or more serving cells, respectively, wherein the PUSCH allocation or PDSCH allocation may contain at least one of { mapping type, SLIV }, PUSCH allocation or PDSCH allocation may further include mapping type, SLIV, start symbol, length, number of repeated transmissions, number of slots, extended K2. . Alternatively, a row in the TDRA may indicate { K0 or K2, mapping type, SLIV, number of repeated transmissions } sets of one or more serving cells, respectively. Alternatively, a row in the TDRA may indicate { K0 or K2, mapping type, SLIV, number of retransmissions } set for one or more serving cells, respectively. The definition of parameters K0 or K2 may be referred to the description of various embodiments of the present disclosure.

In some embodiments, if the number of repeated transmissions is not configured in the TDRA configuration (e.g., TDRA table), when the UE receives DCI format 1_3, it may be specified that the scheduled PDSCH does not make repeated transmissions (or the number of repeated transmissions is 1), or it may be specified that the scheduled PDSCH determines the number of repeated transmissions (e.g., separately determined for each serving cell) according to the parameter PDSCH-aggregation factor configured in the information element (information element, IE) PDSCH-Config. If the number of repeated transmissions is not configured in the TDRA configuration (e.g., TDRA table), when the UE receives the DCI format 0_3, it may be specified that the scheduled PUSCH does not perform repeated transmission (or the number of repeated transmissions is 1), or it may be specified that the scheduled PUSCH determines the number of repeated transmissions according to the parameter PUSCH-aggregation factor configured in the IE PUSCH-Config (e.g., separately determined for each serving cell).

In a method for receiving PDSCH according to some embodiments of the present disclosure, first, a UE receives a PDCCH, wherein the PDCCH carries a first DCI format. For example, the first DCI format may be a DCI format (e.g., DCI format 1_3) that schedules PDSCH reception on multiple serving cells. The UE receives PDSCH in one or more serving cells according to the information indicated by the first DCI format. Receiving the PDSCH may include receiving the PDSCH on the determined time domain resources and/or frequency domain resources.

In the method for receiving the PDSCH, the UE then determines PUCCH resources according to the information indicated by the first DCI format, wherein the PUCCH resources carry HARQ-ACK information received by the PDSCH.

In this method for receiving PDSCH, finally, the UE transmits PUCCH. For example, the PUCCH includes HARQ-ACK information received by PDSCH

In a method for transmitting PUSCH according to some embodiments of the present disclosure, first, a UE receives a second DCI format. For example, the second DCI format may be a DCI format (e.g., DCI format 0_3) that schedules PUSCH on multiple serving cells. The UE may transmit PUSCH in one or more serving cells according to the information indicated by the second DCI format.

In the method for transmitting PUSCH, the UE then determines time domain resources and/or frequency domain resources of PUSCH in one or more serving cells according to the information indicated by the second DCI format.

In the method for transmitting PUSCH, finally, the UE transmits PUSCH in the determined time domain resource and/or frequency domain resource.

The scheduling flexibility can be improved according to the method of the MN 25. In addition, only the DCI format which is required to be monitored by the UE is configured, so that blind detection of the UE can be reduced, and the complexity of UE realization is reduced.

Mode MN26

In some embodiments, the UE receives one DCI format 0_3 (e.g., the UL DAI field contained in DCI format 0_3) to schedule PUSCHs of multiple serving cells (or schedule multiple PUSCHs), and if none of the PUCCHs carrying HARQ-ACKs overlap the scheduled PUSCHs in the time domain, the UE does not multiplex HARQ-ACK information into the PUSCH. That is, in the case where there is no PUSCH transmission in one slot, if the UE does not transmit a PUCCH carrying HARQ-ACK (e.g., a single slot PUCCH), the UE does not multiplex HARQ-ACK information to the PUSCH in this slot. The method can avoid multiplexing HARQ-ACK information into a plurality of PUSCHs, can improve the reliability of PUSCH transmission, and reduces PUSCH retransmission, thereby improving the system spectrum efficiency. Fig. 9 illustrates a flow chart of a method 900 performed by a terminal according to some embodiments of the present disclosure.

Referring to fig. 9, in operation S910, a plurality of DCI formats are received.

Then, in operation S920, an ordering of each of the plurality of DCI formats is determined.

Next, in operation S930, uplink transmission resources for transmitting HARQ-ACK information are determined based on the determined ordering.

In some embodiments, for example, the plurality of DCI formats may include at least two DCI formats that schedule downlink physical shared channel PDSCH reception of the same serving cell. Determining an ordering of each of the plurality of DCI formats may include determining an ordering of each of the plurality of DCI formats based on: the plurality of DCI formats are first numbered in ascending order of the scheduled PDSCH in the same serving cell of the same physical downlink control channel PDCCH listening occasion, then in ascending order of the serving cell index in the same PDCCH listening occasion, and then in ascending order of the PDCCH listening occasion index.

In some embodiments, for example, the plurality of DCI formats may include DCI formats that schedule PDSCH reception in the plurality of serving cells. Determining an ordering of each DCI format of the plurality of DCI formats may include determining an ordering of DCI formats of the plurality of DCI formats that schedule PDSCH reception in the plurality of serving cells, which may include: determining a reference serving cell related to a DCI format number for a DCI format from a plurality of serving cells; and determining an ordering of the DCI formats based on the determined reference serving cells associated with the DCI format numbers.

In some embodiments, for example, determining a reference serving cell for the DCI format related to the DCI format number from among the plurality of serving cells may include determining at least one of the following as the reference serving cell related to the DCI format number:

-the serving cell with the largest index of the plurality of serving cells;

-a serving cell with the smallest index of the plurality of serving cells;

-the serving cell with the largest index of the serving cells in which PDSCH with no time domain overlap is located for uplink symbols configured with higher layer signaling among the plurality of serving cells; or (b)

-the serving cell with the smallest index among the serving cells where PDSCH with no time domain overlap is located for uplink symbols configured with higher layer signaling among the plurality of serving cells.

In some embodiments, for example, the plurality of DCI formats may include a DCI format indicating that the secondary cell is dormant. Determining an ordering of each DCI format of the plurality of DCI formats may include determining an ordering of DCI formats of the plurality of DCI formats that indicates secondary cell dormancy, including: determining a reference serving cell related to a DCI format number for the DCI format; and determining an ordering of the DCI formats based on the determined reference serving cells associated with the DCI format numbers.

In some embodiments, for example, determining a reference serving cell associated with a DCI format number for a DCI format may include determining at least one of the following as the reference serving cell associated with the DCI format number:

-a serving cell with the largest index of serving cells configured to be dormant;

-a serving cell with the smallest index of serving cells configured to be dormant;

-indicating the serving cell with the largest index among the dormant serving cells by the DCI format; or (b)

-indicating the serving cell with the largest index among the dormant serving cells by the DCI format.

In some embodiments, for example, the plurality of DCI formats includes at least one of a DCI format indicating a HARQ-ACK retransmission, a DCI format indicating a secondary cell dormancy, or a DCI format indicating feedback of HARQ-ACK information for all HARQ processes. Determining an ordering of each DCI format of the plurality of DCI formats may include determining an ordering of at least one DCI format, which may include: determining a reference serving cell associated with a DCI format number for at least one DCI format; and determining an ordering of the at least one DCI format based on the determined reference serving cell associated with the DCI format number.

In some embodiments, for example, determining a reference serving cell associated with a DCI format number for at least one DCI format includes determining at least one of the following as the reference serving cell associated with the DCI format number:

-a primary serving cell;

-the indexed largest cell of higher layer signaling configuration;

-the cell with the smallest index of higher layer signaling configuration;

-a cell with an index being the sum of the maximum value of the index of the cell and a predetermined value; or (b)

-a cell with an index being the difference of the minimum value of the index of the cell and a predetermined value.

In some embodiments, for example, determining an ordering of each DCI format of the plurality of DCI formats includes determining a last DCI format, including:

a DCI format indicating feedback of HARQ-ACK information for all HARQ processes among the plurality of DCI formats is determined as a final DCI format.

In some implementations, operations S910 and/or S920 and/or S930 and/or other additional operations may be performed, for example, based on various embodiments of the present disclosure (e.g., one or more of manners MN3-MN 8) described above.

Fig. 10 illustrates a flow chart of a method 1000 performed by a terminal according to some embodiments of the present disclosure.

Referring to fig. 10, in operation S1010, a reference serving cell is determined in case that a predefined condition is satisfied.

Then, in operation S1020, uplink transmission is performed based on the determined reference serving cell.

In some embodiments, for example, the predefined conditions may include at least one of:

-the terminal receiving a downlink control information, DCI, format received by a physical downlink shared channel, PDSCH, scheduling a plurality of serving cells;

-the terminal receiving a DCI format without scheduled PDSCH reception;

-the terminal receiving a DCI format triggering a hybrid automatic repeat request-acknowledgement, HARQ-ACK, retransmission;

-the terminal receiving a DCI format indicating the secondary cell deactivation; or (b)

-the terminal receiving a DCI format of a trigger type-3 HARQ-ACK codebook.

In some embodiments, for example, determining a reference serving cell may include determining at least one of the following as a reference serving cell:

the PDSCH scheduled by the DCI format receives the service cell with the largest index in the service cells;

-a serving cell with the smallest index of the serving cells in which PDSCH scheduled by the DCI format is received;

-a first serving cell in a set of serving cells indicated by a DCI format;

-the last serving cell in the set of serving cells indicated by the DCI format;

-the serving cell with the smallest index in the serving cells where PDSCH with which the uplink symbols configured by higher layer signaling are not overlapped in the time domain in the set of serving cells indicated by the DCI format;

-the serving cell with the largest index in the serving cells where PDSCH with which the uplink symbols of higher layer signaling configuration are not overlapped in the time domain in the set of serving cells indicated by the DCI format;

-a serving cell determined based on a carrier indicator in a DCI format; or (b)

-a serving cell in which a PDCCH carrying a DCI format is located.

In some implementations, for example, performing uplink transmission based on the determined reference serving cell may include determining, based on the reference serving cell, at least one of:

-ordering of DCI formats;

-a downlink allocation index DAI count; or (b)

-PUCCH time units carrying HARQ-ACK information.

In some implementations, operations S1010 and/or S1020 and/or other additional operations may be performed, for example, based on various embodiments of the present disclosure described above (e.g., one or more of manners MN1-MN 2).

Fig. 11 illustrates a flow chart of a method 1100 performed by a terminal according to some embodiments of the present disclosure.

Referring to fig. 11, in operation S1110, a DCI format scheduling PDSCH reception of a plurality of serving cells is received.

Then, in operation S1120, a HARQ-ACK codebook is generated.

In some embodiments, for example, the slot interval at which a terminal does not expect any PDSCH of PDSCH reception on multiple serving cells scheduled by a DCI format to receive and transmit PUCCH of its HARQ-ACK information is not within the set of configured timing parameters K1 associated with HARQ-ACK feedback.

In some embodiments, for example, in a case where the terminal is configured with a semi-static HARQ-ACK codebook, the time domain resource allocation TDRA table indicated by the DCI format reuses an existing time domain resource allocation TDRA table for each of the plurality of serving cells to indicate PDSCH time domain resource allocation for each serving cell.

In some embodiments, for example, in the case where the terminal is configured with a dynamic HARQ-ACK codebook or an enhanced dynamic HARQ-ACK codebook, HARQ-ACK sub-codebooks are generated for DCI formats for PDSCH reception of a plurality of serving cells and DCI formats for PDSCH reception of one PDSCH reception, respectively, wherein the number of HARQ-ACK bits corresponding to DCI formats for PDSCH reception of a plurality of serving cells is determined based on: parameters of higher layer signaling configuration; maximum value of number of PDSCH schedulable in DCI format; or the maximum number of TBs that the DCI format can schedule.

In some implementations, operations S1110 and/or S1120 and/or other additional operations may be performed, for example, based on various embodiments of the present disclosure described above (e.g., various manners, such as one or more of manners MN9-MN 11).

Fig. 12 illustrates a block diagram of a first transceiving node 1200, according to some embodiments of the present disclosure.

Referring to fig. 12, a first transceiving node 1200 may include a transceiver 1201 and a controller 1202.

The transceiver 1201 may be configured to send first data and/or first control signaling to the second transceiver node and to receive second data and/or second control signaling from the second transceiver node in time units.

The controller 1202 may be an application specific integrated circuit or at least one processor. The controller 1202 may be configured to control overall operation of the first transceiving node, including controlling the transceiver 1201 to send first data and/or first control signaling to the second transceiving node and to receive second data and/or second control signaling from the second transceiving node in time units.

In some implementations, the controller 1202 may be configured to perform one or more operations of the methods of the various embodiments described above.

In the following description, a first transceiving node is illustrated by way of example (but not limited to) a base station, and a second transceiving node is illustrated by way of example (but not limited to) a UE. The first data and/or the first control signaling are described in terms of, but not limited to, downlink data and/or downlink control signaling. The HARQ-ACK codebook may be included in the second control signaling, which is illustrated with uplink control signaling (but not limited to).

Fig. 13 illustrates a flow chart of a method 1300 performed by a base station according to some embodiments of the present disclosure.

Referring to fig. 13, in step S1310, a base station transmits downlink data and/or downlink control information.

In step S1320, the base station receives second data and/or second control line information from the UE in time units.

For example, method 1300 may include one or more of the operations described in various embodiments (e.g., various manners) of the present disclosure as being performed by a base station.

Those skilled in the art will appreciate that the above illustrative embodiments are described herein and are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein may be combined in any combination. In addition, other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the subject matter presented herein. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are contemplated herein.

Those of skill in the art will appreciate that the various illustrative logical blocks, modules, circuits, and steps described herein may be implemented as hardware, software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such design decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The various illustrative logical blocks, modules, and circuits described herein may be implemented or performed with a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.

In one or more exemplary designs, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The foregoing is merely exemplary embodiments of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims.

Claims (14)

1. A method performed by a terminal in a wireless communication system, comprising:

receiving a plurality of Downlink Control Information (DCI) formats;

determining an ordering of each DCI format of the plurality of DCI formats; and

uplink transmission resources for transmitting hybrid automatic repeat request-acknowledgement HARQ-ACK information are determined based on the determined ordering.

2. The method of claim 1, wherein the plurality of DCI formats includes at least two DCI formats that schedule downlink physical shared channel PDSCH reception of a same serving cell,

Wherein determining the ordering of each DCI format of the plurality of DCI formats includes determining the ordering of each DCI format of the plurality of DCI formats based on:

the plurality of DCI formats are first numbered in ascending order of the scheduled PDSCH in the same serving cell of the same physical downlink control channel PDCCH listening occasion, then numbered in ascending order of the serving cell index in the same PDCCH listening occasion, and then numbered in ascending order of the PDCCH listening occasion index.

3. The method of claim 1 or 2, wherein the plurality of DCI formats includes DCI formats that schedule PDSCH reception in a plurality of serving cells,

wherein determining an ordering of each DCI format of the plurality of DCI formats includes determining an ordering of DCI formats of the plurality of DCI formats that schedule PDSCH reception in a plurality of serving cells, comprising:

determining a reference serving cell associated with a DCI format number for the DCI format from the plurality of serving cells, and

an ordering of the DCI formats is determined based on the determined reference serving cell associated with the DCI format number.

4. The method of claim 3, wherein determining a reference serving cell associated with a DCI format number for the DCI format from the plurality of serving cells comprises determining at least one of the following as the reference serving cell associated with the DCI format number:

The serving cell with the largest index in the plurality of serving cells;

the serving cell with the smallest index in the plurality of serving cells;

the uplink symbol configured with higher layer signaling in the multiple service cells indexes the service cell with the largest index in the service cell where the PDSCH with no overlapping time domain is located; or (b)

And the service cell with the minimum index in the service cells where the PDSCH which is not overlapped with the uplink symbols configured by the higher layer signaling in the time domain exists in the plurality of service cells.

5. The method of claim 1 or 2, wherein the plurality of DCI formats includes a DCI format indicating a secondary cell dormancy,

wherein determining an ordering of each DCI format of the plurality of DCI formats includes determining an ordering of the DCI formats of the plurality of DCI formats that indicates secondary cell dormancy, comprising:

determining a reference serving cell associated with a DCI format number for the DCI format, and

an ordering of the DCI formats is determined based on the determined reference serving cell associated with the DCI format number.

6. The method of claim 5, wherein determining a reference serving cell associated with a DCI format number for the DCI format comprises determining at least one of the following as the reference serving cell associated with the DCI format number:

A serving cell with the largest index among serving cells configured to be dormant;

a serving cell with a smallest index among serving cells configured to be dormant;

indicating a serving cell with the largest index in dormant serving cells by the DCI format; or (b)

And indicating the serving cell with the largest index in dormant serving cells by the DCI format.

7. The method of claim 1 or 2, wherein the plurality of DCI formats includes at least one of a DCI format indicating HARQ-ACK retransmission, a DCI format indicating secondary cell dormancy, or a DCI format indicating feedback of HARQ-ACK information for all HARQ processes,

wherein determining an ordering of each DCI format of the plurality of DCI formats includes determining an ordering of the at least one DCI format, including:

determining a reference serving cell associated with a DCI format number for the at least one DCI format, and

an ordering of the at least one DCI format is determined based on the determined reference serving cell associated with the DCI format number.

8. The method of claim 7, wherein determining a reference serving cell associated with a DCI format number for the at least one DCI format comprises determining at least one of the following as the reference serving cell associated with the DCI format number:

A primary serving cell;

the cell with the largest index configured by higher layer signaling;

the cell with the smallest index configured by higher layer signaling;

a cell whose index is the sum of the maximum value of the index of the cell and a predetermined value; or (b)

The index is a cell whose index is a difference between a minimum value of the index of the cell and a predetermined value.

9. The method of claim 1, wherein determining an ordering of each DCI format of the plurality of DCI formats comprises determining a last DCI format, comprising:

and determining a DCI format indicating feedback of the HARQ-ACK information to all the HARQ processes in the plurality of DCI formats as a final DCI format.

10. A method performed by a terminal in a wireless communication system, comprising:

determining a reference serving cell if a predefined condition is met; and

uplink transmission is performed based on the determined reference serving cell.

11. The method of claim 10, wherein the predefined condition comprises at least one of:

the terminal receives Downlink Control Information (DCI) format received by a Physical Downlink Shared Channel (PDSCH) for scheduling a plurality of service cells;

the terminal receives a DCI format which is not received by a dispatching PDSCH;

the terminal receives a DCI format triggering hybrid automatic repeat request-acknowledgement HARQ-ACK retransmission;

The terminal receives a DCI format indicating the deactivation of the auxiliary cell; or (b)

And the terminal receives the DCI format of the trigger type-3 HARQ-ACK codebook.

12. The method of claim 11, wherein determining a reference serving cell comprises determining at least one of the following as a reference serving cell:

the PDSCH scheduled by the DCI format receives a service cell with the largest index in the service cells;

the PDSCH scheduled by the DCI format receives a service cell with the minimum index from the service cells;

a first serving cell in a set of serving cells indicated by the DCI format;

the last serving cell in the set of serving cells indicated by the DCI format;

the service cell with the minimum index in the service cell where the PDSCH which is not overlapped with the uplink symbol configured by the higher layer signaling in the service cell set indicated by the DCI format is located in the time domain;

the service cell with the largest index in the service cells where the PDSCH which is not overlapped with the uplink symbol configured by the higher layer signaling in the service cell set indicated by the DCI format is located in the time domain;

a serving cell determined based on a carrier indicator in the DCI format; or (b)

And carrying a service cell where the PDCCH of the DCI format is located.

13. The method of claim 11 or 12, wherein performing uplink transmissions based on the determined reference serving cell comprises determining, based on the reference serving cell, at least one of:

ordering of DCI formats;

downlink allocation index DAI count; or (b)

PUCCH time units carrying HARQ-ACK information.

14. A terminal in a wireless communication system, comprising:

a transceiver configured to transmit and receive signals; and

a controller coupled to the transceiver and configured to perform the operations of the method of any one of claims 1-13.