WO2023281288A1

WO2023281288A1 - Apparatus and method of wireless communication

Info

Publication number: WO2023281288A1
Application number: PCT/IB2021/000506
Authority: WO
Inventors: Hao Lin
Original assignee: Orope France Sarl
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2023-01-12
Also published as: CN115604855A

Abstract

An apparatus and a method of wireless communication are provided. The method by a user equipment (UE) includes being configured, by a base station, with a first physical uplink control channel (PUCCH) format and/or a second PUCCH format and transmitting, to the base station, a PUCCH according to the first PUCCH format and/or the second PUCCH format. This can solve issues in the prior art, provide a method to flexibly configure a PUCCH format, reduce a signaling overhead, provide a good communication performance, and/or provide high reliability.

Description

APPARATUS AND METHOD OF WIRELESS COMMUNICATION

BACKGROUND OF DISCLOSURE

1. Field of the Disclosure

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

2. Description of the Related Art

[0002] In current releases of a new radio (NR) system, such as release 15 and release 16 of the NR system, a resource allocation for downlink data, such as a physical downlink shared channel (PDSCH), has been specified in TS 38.214 section 5. A PDSCH may be scheduled by a downlink control information (DCI) format. The PDSCH contains a transport block corresponding to a hybrid automatic repeat request (HARQ) process number. However, in some cases, e.g., high throughput requested applications such as virtual reality and/or augmented reality (VR/AR) or non-terrestrial communications as described in TR 38.811 or TS 38.821, a user equipment (UE) needs to receive PDSCHs carrying different transport blocks consecutively in time domain. In some extreme cases, the UE receives PDSCH in consecutive slots. For such applications, if a network follows Rel.15 or Rel.16 specifications, the network needs to spend many DCIs in order to schedule these PDSCH transmissions. Obviously, it will consume a lot of signaling overhead.

[0003] In an unlicensed band, an unlicensed spectrum is a shared spectrum. Communication equipment in different communication systems can use the unlicensed spectrum as long as the unlicensed meets regulatory requirements set by countries or regions on a spectrum. There is no need to apply for a proprietary spectrum authorization from a government. [0004] In order to allow various communication systems that use the unlicensed spectrum for wireless communication to coexist friendly in the spectrum, some countries or regions specify regulatory requirements that must be met to use the unlicensed spectrum. For example, a communication device follows a listen before talk (LBT) or channel access procedure, that is, the communication device needs to perform a channel sensing before transmitting a signal on a channel. When an LBT outcome illustrates that the channel is idle, the communication device can perform signal transmission; otherwise, the communication device cannot perform signal transmission. In order to ensure fairness, once a communication device successfully occupies the channel, a transmission duration cannot exceed a maximum channel occupancy time (MCOT). LBT mechanism is also called a channel access procedure. In new radio (NR) Release 16, there are different types of channel access procedures, e.g., type 1, type 2A, type 2B and type 2C channel access procedures as described in TS 37.213.

[0005] In NR Release 15 and Release 16 systems, an operation frequency range is limited to below 52.6 GHz. For such high frequency will require a PUCCH transmission with more flexible configuration on a bandwidth, a multiplexing, and a spectral efficiency. To further boost a data throughput, future network can further envision using a higher frequency range, e.g., above 52.6 GHz. However, in some regions, the frequency above 52.6 GHz, e.g., 60 GHz, is a shared spectrum. Moreover, a power spectrum density is limited in this frequency band. In this case, a PUCCH transmission robustness or coverage will be limited accordingly.

[0006] Therefore, there is a need for an apparatus and a method of wireless communication, which can solve issues in the prior art, provide a method to flexibly configure a PUCCH format, reduce a signaling overhead, provide a good communication performance, and/or provide high reliability.

SUMMARY

[0007] An object of the present disclosure is to propose an apparatus (such as a user equipment (UE) and/or a base station) and a method of wireless communication, which can solve issues in the prior art, provide a method to flexibly configure a PUCCH format, reduce a signaling overhead, provide a good communication performance, and/or provide high reliability. [0008] In a first aspect of the present disclosure, a method of wireless communication by a user equipment (UE) comprises being configured, by a base station, with a first physical uplink control channel (PUCCH) format and/or a second PUCCH format and transmitting, to the base station, a PUCCH according to the first PUCCH format and/or the second PUCCH format.

[0009] In a second aspect of the present disclosure, a method of wireless communication by a base station comprises configuring, to a user equipment (UE), a first physical uplink control channel (PUCCH) format and/or a second PUCCH format and receiving, from the UE, a PUCCH according to the first PUCCH format and/or the second PUCCH format. [0010] In a third aspect of the present disclosure, a user equipment comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver. The processor is configured, by a base station, with a first physical uplink control channel (PUCCH) format and/or a second PUCCH format, and the transceiver is configured to transmit, to the base station, a PUCCH according to the first PUCCH format and/or the second PUCCH format.

[0011] In a fourth aspect of the present disclosure, a base station comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver. The processor is configured to configure, to a user equipment (UE), a first physical uplink control channel (PUCCH) format and/or a second PUCCH format, and the transceiver is configured to receive, from the UE, a PUCCH according to the first PUCCH format and/or the second PUCCH format.

[0012] In a fifth aspect of the present disclosure, a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method.

[0013] In a sixth aspect of the present disclosure, a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method.

[0014] In a seventh aspect of the present disclosure, a computer readable storage medium, in which a computer program is stored, causes a computer to execute the above method.

[0015] In an eighth aspect of the present disclosure, a computer program product includes a computer program, and the computer program causes a computer to execute the above method.

[0016] In a ninth aspect of the present disclosure, a computer program causes a computer to execute the above method.

BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to illustrate the embodiments of the present disclosure or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present disclosure, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise.

[0018] FIG. 1 is a block diagram of one or more user equipments (UEs) and a base station (e.g., gNB) of communication in a communication network system according to an embodiment of the present disclosure.

[0019] FIG. 2 is a schematic diagram illustrating an example user plane protocol stack according to an embodiment of the present disclosure.

[0020] FIG. 3 is a schematic diagram illustrating an example control plane protocol stack according to an embodiment of the present disclosure.

[0021] FIG. 4 is a flowchart illustrating a method of wireless communication performed by a user equipment (UE) according to an embodiment of the present disclosure.

[0022] FIG. 5 is a flowchart illustrating a method of wireless communication performed by a base station according to an embodiment of the present disclosure.

[0023] FIG. 6 is a block diagram of a system for wireless communication according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF EMBODIMENTS

[0024] Embodiments of the present disclosure are described in detail with the technical matters, structural features, achieved objects, and effects with reference to the accompanying drawings as follows. Specifically, the terminologies in the embodiments of the present disclosure are merely for describing the purpose of the certain embodiment, but not to limit the disclosure.

[0025] FIG. 1 illustrates that, in some embodiments, one or more user equipments (UEs) 10 and abase station (e.g., gNB) 20 for transmission adjustment in a communication network system 30 according to an embodiment of the present disclosure are provided. The communication network system 30 includes the one or more UEs 10 and the base station 20. The one or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13. The base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23. The processor 11 or 21 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21. The transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and/or receives a radio signal.

[0026] The processor 11 or 21 may include application-specific integrated circuit (ASIC), other chipset, logic circuit and/or data processing device. The memory 12 or 22 may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and/or other storage device. The transceiver 13 or 23 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21. The memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.

[0027] FIG. 2 illustrates an example user plane protocol stack according to an embodiment of the present disclosure. FIG. 2 illustrates that, in some embodiments, in the user plane protocol stack, where service data adaptation protocol (SDAP), packet data convergence protocol (PDCP), radio link control (RLC), and media access control (MAC) sublayers and physical (PHY) layer may be terminated in a UE 10 and a base station 20 (such as gNB) on a network side. In an example, a PHY layer provides transport services to higher layers (e.g., MAC, RRC, etc.). In an example, services and functions of a MAC sublayer may comprise mapping between logical channels and transport channels, multiplexing/demultiplexing of MAC service data units (SDUs) belonging to one or different logical channels into/from transport blocks (TBs) delivered to/from the PHY layer, scheduling information reporting, error correction through hybrid automatic repeat request (HARQ) (e.g. one HARQ entity per carrier in case of carrier aggregation (CA)), priority handling between UEs by means of dynamic scheduling, priority handling between logical channels of one UE by means of logical channel prioritization, and/or padding. A MAC entity may support one or multiple numerologies and/or transmission timings. In an example, mapping restrictions in a logical channel prioritization may control which numerology and/or transmission timing a logical channel may use. In an example, an RLC sublayer may supports transparent mode (TM), unacknowledged mode (UM) and acknowledged mode (AM) transmission modes. The RLC configuration may be per logical channel with no dependency on numerologies and/or transmission time interval (TTI) durations. In an example, automatic repeat request (ARQ) may operate on any of the numerologies and/or TTI durations the logical channel is configured with. In an example, services and functions of the PDCP layer for the user plane may comprise sequence numbering, header compression, and decompression, transfer of user data, reordering and duplicate detection, PDCP PDU routing (e.g., in case of split bearers), retransmission of PDCP SDUs, ciphering, deciphering and integrity protection, PDCP SDU discard, PDCP re-establishment and data recovery for RLC AM, and/or duplication of PDCP PDUs. In an example, services and functions of SDAP may comprise mapping between a QoS flow and a data radio bearer. In an example, services and functions of SDAP may comprise mapping quality of service Indicator (QFI) in downlink (DL) and uplink (UL) packets. In an example, a protocol entity of SDAP may be configured for an individual PDU session.

[0028] FIG. 3 illustrates an example control plane protocol stack according to an embodiment of the present disclosure. FIG. 2 illustrates that, in some embodiments, in the control plane protocol stack where PDCP, RLC, and MAC sublayers and PHY layer may be terminated in a UE 10 and a base station 20 (such as gNB) on a network side and perform service and functions described above. In an example, RRC used to control a radio resource between the UE and a base station (such as a gNB). In an example, RRC may be terminated in a UE and the gNB on a network side. In an example, services and functions of RRC may comprise broadcast of system information related to AS and NAS, paging initiated by 5GC or RAN, establishment, maintenance and release of an RRC connection between the UE and RAN, security functions including key management, establishment, configuration, maintenance and release of signaling radio bearers (SRBs) and data radio bearers (DRBs), mobility functions, QoS management functions, UE measurement reporting and control of the reporting, detection of and recovery from radio link failure, and/or NAS message transfer to/from NAS from/to a UE. In an example, NAS control protocol may be terminated in the UE and AMF on a network side and may perform functions such as authentication, mobility management between a UE and an AMF for 3GPP access and non-3GPP access, and session management between a UE and a SMF for 3GPP access and non-3GPP access.

[0029] In some embodiments, the processor 11 is configured, by the base station 20, with a first physical uplink control channel (PUCCH) format and/or a second PUCCH format, and the transceiver 13 is configured to transmit, to the base station 20, a PUCCH according to the first PUCCH format and/or the second PUCCH format. This can solve issues in the prior art, provide a method to flexibly configure a PUCCH format, reduce a signaling overhead, provide a good communication performance, and/or provide high reliability.

[0030] In some embodiments, the processor 21 is configured to configure, to the user equipment (UE) 10, a first physical uplink control channel (PUCCH) format and/or a second PUCCH format, and the transceiver 23 is configured to receive, from the UE 10, a PUCCH according to the first PUCCH format and/or the second PUCCH format. This can solve issues in the prior art, provide a method to flexibly configure a PUCCH format, reduce a signaling overhead, provide a good communication performance, and/or provide high reliability.

[0031] FIG. 4 illustrates a method 200 of wireless communication by a user equipment (UE) according to an embodiment of the present disclosure. In some embodiments, the method 200 includes: a block 202, being configured, by a base station, with a first physical uplink control channel (PUCCH) format and or a second PUCCH format, and a block 204, transmitting, to the base station, a PUCCH according to the first PUCCH format and/or the second PUCCH format. This can solve issues in the prior art, provide a method to flexibly configure a PUCCH format, reduce a signaling overhead, provide a good communication performance, and/or provide high reliability.

[0032] FIG. 5 illustrates a method 300 of wireless communication by a base station according to an embodiment of the present disclosure. In some embodiments, the method 300 includes: a block 302, configuring, to a user equipment (UE), a first physical uplink control channel (PUCCH) format and/or a second PUCCH format, and a block 304, receiving, from the UE, a PUCCH according to the first PUCCH format and/or the second PUCCH format. This can solve issues in the prior art, provide a method to flexibly configure a PUCCH format, reduce a signaling overhead, provide a good communication performance, and/or provide high reliability.

[0033] In some embodiments, the PUCCH of the first PUCCH format and the PUCCH of the second PUCCH format have at least one of common characteristics: wherein the PUCCH applies a discrete Fourier transform (DFT) transform precoding; wherein in frequency domain, the PUCCH occupies one or more physical resource blocks (PRBs); wherein the PUCCH carries an uplink control information (UCI) with more than 2 bits; or wherein the UCI and a demodulation reference signal (DMRS) are multiplexed in time domain. In some embodiments, the PUCCH of the second PUCCH format can be configured to apply an orthogonal sequence. In some embodiments, the orthogonal sequence is pre-defined or defined according to a spreading factor. In some embodiments, the spreading factor is pre-configured. In some embodiments, the PUCCH of the first and/or the second PUCCH format carries UCI bits. In some embodiments, the UE determines a number of the UCI bits according to at least one of the followings: initial UCI bits or extended UCI bits. In some embodiments, the extended UCI bits are determined according to the initial UCI bits and/or a factor of extension. In some embodiments, the extended UCI bits are greater than or equal to the initial UCI bits. In some embodiments, the extended UCI bits are less than or equal to the initial UCI bits times a number of the factor of extension.

[0034] In some embodiments, a value of the factor of extension is configured by a base station. In some embodiments, the extension UCI bits are a repetition of the initial UCI bits. In some embodiments, the extension UCI bits are determined by a per-group repetition of the initial UCI bits or by per-bit repetition. In some embodiments, there is a maximum number of the initial UCI bits or a maximum number of the extension UCI bits. In some embodiments, the maximum number of the initial UCI bits is pre-defined. In some embodiments, the maximum number of the extension UCI bits is pre-defined according to at least a number of PRB occupied by the PUCCH of the second PUCCH format and/or a value of the factor of extension. In some embodiments, the maximum number of the initial UCI bits comprises a first maximum number of the initial UCI bits and a second maximum number of the initial UCI bits, the first maximum number of the initial UCI bits is defined for a first number of PRBs occupied by the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format and the second maximum number of the initial UCI bits is defined for a second number of PRBs occupied by the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format. In some embodiments, the PUCCH of the first PUCCH format adapts a number of PRBs carrying a UCI. In some embodiments, the UE is configured, by the base station, with a first number of PRBs for the first PUCCH format or the second PUCCH format, and the UE uses a second number of PRBs for the first PUCCH format or the second PUCCH format for transmission. In some embodiments, the second number of PRBs for the first PUCCH format or the second PUCCH format is less than or equal to the first number of PRBs for the first PUCCH format or the second PUCCH format.

[0035] In some embodiments, the UE is configured, by the base station, with a first number of PRBs for the first PUCCH format, and the UE is configured to changes the first number of PRBs for the first PUCCH format to a second number of PRBs for the PUCCH of the first PUCCH format. In some embodiments, the second number of PRBs for the PUCCH for the first PUCCH format or the second PUCCH format is according to at least one of the followings: the first number of PRBs; a code rate; a modulation scheme (Q); a spreading factor; a number of cyclic redundancy check (CRC) bits, the initial UCI bits; or the extension UCI bits. In some embodiments, the code rate is configured by the base station or a number of the CRC bits is pre-defined. In some embodiments, the modulation scheme (Q) comprises a pi/2 -binary phase shift keying (BPSK) or a quadrature PSK (QPSK). In some embodiments, the QPSK corresponds to Q equal to 1 or Q equal 2. In some embodiments, the second number of PRBs for the first PUCCH format is less than or equal to the first number of PRBs for the PUCCH of the first PUCCH format. In some embodiments, the second number of PRBs for the first PUCCH format or the second PUCCH satisfies at least one of the followings: the number of the initial UCI bits plus the number of CRC bits is less than or equal to a number of PUCCH resources times Q times the code rate.

[0036] In some embodiments, a number of PUCCH resources is determined by the second number of PRBs for the first

PUCCH format or the second PUCCH format times a number of subcarriers within a PRB times a number of symbols for the PUCCH for the first PUCCH format or the second PUCCH format carrying the UCI bits. In some embodiments, the second number of PRBs for the first PUCCH format or the second PUCCH satisfies at least one of the followings: the number of the extension UCI bits plus the number of the CRC bits is less than or equal to the number of PUCCH resources plus Q plus the code rate. In some embodiments, the initial UCI bits comprise at least one of the followings: a number of hybrid automatic repeat request acknowledgement (HARQ-ACK) information, a number of scheduling request (SR) bits, a number of part 1 channel state information (CSI) bits, or a number of part 2 CSI bits. In some embodiments, the number of the CRC bits comprises at least one of the followings: a first number of the CRC bits or a second number of the CRC bits. In some embodiments, the first number of the CRC bits is used for encoding HARQ-ACK information bits, the SR bits, and/or the part 1 CSI bits. In some embodiments, the second number of the CRC bits is used for encoding the part 2 CSI bits. In some embodiments, the UE is configured to use the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format, and the first PUCCH format and the second PUCCH format have a different PUCCH format index. [0037] In some embodiments, the UE determines the first PUCCH format or the second PUCCH format according a configured PUCCH format index. In some embodiments, the UE is indicated, by the base station, with a PUCCH resource identifier (ID), and the PUCCH resource ID is associated with a PUCCH format index. In some embodiments, the UE determines the first PUCCH format or the second PUCCH format according to the PUCCH format index associated with the PUCCH resource ID. In some embodiments, the first PUCCH format and the second PUCCH format have a same PUCCH format index. In some embodiments, the UE determines the PUCCH from the first PUCCH format and/or the second PUCCH format from a first parameter. In some embodiments, the first parameter is configured by the base station, and the UE determines a PUCCH format as the first PUCCH format. In some embodiments, the first parameter is configured by the base station, and the UE determines a PUCCH format as the second PUCCH format. In some embodiments, if the UE is configured, by the base station, with a first parameter, the first parameter is used to indicate a PUCCH format as the first PUCCH format. In some embodiments, if a first parameter is absent in PUCCH configuration, the UE determines a PUCCH format as the second PUCCH format.

[0038] In some embodiments, if the UE is configured, by the base station, with a first parameter, the first parameter is used to indicate a PUCCH format as the first PUCCH format, or if the UE is configured, by the base station, with a second parameter, the second parameter is used to indicate the PUCCH format as the second PUCCH format. In some embodiments, if the UE is configured, by the base station, with a first value of a first parameter, the first value of the first parameter is used to indicate a PUCCH format as the first PUCCH format, or if the UE is configured, by the base station, with a second value of the first parameter, the second value of the first parameter is used to indicate a PUCCH format as the second PUCCH format. In some embodiments, the first PUCCH format and/or the second PUCCH format has a PUCCH format index A. In some embodiments, the UE is configured, by the base station, with a parameter, and the parameter is configured in a radio resource control (RRC) information element corresponding to the PUCCH format index A. In some embodiments, the UE is indicated, by the base station, with a PUCCH resource ID, and the PUCCH resource ID is associated with the PUCCH format index A. In some embodiments, in an RRC configuration of the PUCCH format index A, when the UE is configured, by the base station, with an occ-length parameter and/or an occ-index parameter, the UE determines a PUCCH format as the second PUCCH format. In some embodiments, in an RRC configuration of the PUCCH format index A, when the UE is configured, by the base station, with an occ-length parameter and/or an occ-index parameter, the UE determines a PUCCH format as the first PUCCH format.

[0039] In some examples, a method for a UE to determine a PUCCH from a first PUCCH format and a second PUCCH format is provided. A PUCCH of the first PUCCH format or of the second PUCCH format has the following at least one common characteristics: 1) the PUCCH applies a discrete Fourier transform (DFT) transform precoding; 2) in frequency domain, the PUCCH may occupy 1 or more than 1 PRB; 3) the PUCCH carries a UCI with more than 2 bits; 4) The UCI and DMRS are multiplexed in time domain. In some examples, in transform precoding, the block of complex-valued symbols shall be transform precoded according to

[0040] In some examples, the PUCCH of the second PUCCH format can be configured to apply orthogonal sequence, where the orthogonal sequence may be pre-defined. In some examples, the orthogonal sequence is defined according to a spreading factor, where the spreading factor can be pre-configured. In some examples, the PUCCH of the second PUCCH format carries UCI bits, the UE determines the number of the UCI bits as followings: 1) initial UCI bits, 2) extended UCI bits, where the extended UCI bits can be determined according to the initial UCI bits and/or a factor of extension. The extended UCI bits are greater than or equal to the initial UCI bits. The extended UCI bits are less than or equal to the initial UCI bits times a number of the factor of extension. In some examples, the extended UCI bits are greater than or equal to 3 and less than or equal to 6. In some examples, the extension UCI bits are a repetition of the initial UCI bits, e.g. [bO, bl, b2] are initial UCI bits, with extension factor 2, the extension UCI bits are determined by a per-group repetition of the initial UCI bits, e.g. [bO, bl, b2, bO, bl, b2], or by per-bit repetition, e.g. [bO, bO, bl, bl, b2, b2]. In some examples, a value of the factor of extension is configured by a network such as a base station. In some examples, there is a maximum number of the initial UCI bits or a maximum number of the extension UCI bits. The extension UCI bits may be 5 bits. In some example, extension UCI bits are less than or equal to the initial UCI bits times the extension factor number. The maximum number of the initial UCI bits can be pre-defined. Optionally, the maximum number of the extension UCI bits is pre-defined according to at least a number of PRB occupied by the PUCCH of the second PUCCH format and/or the value of the factor of extension. For example, the maximum number of the initial UCI bits comprises a first maximum number of the initial UCI bits and a second maximum number of the initial UCI bits, the first maximum number of the initial UCI bits is defined for a first number of PRBs occupied by the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format and the second maximum number of the initial UCI bits is defined for a second number of PRBs occupied by the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format.

[0041] In some examples, the PUCCH of the first PUCCH format may adapt its number of PRBs needed to carry the UCI, where the method of the PRB number adaptation comprises that the network configures a first number of PRB for the first PUCCH format, the UE changes the first number of PRBs for the first PUCCH format to a second number of PRB for the PUCCH of the first PUCCH format. In some examples, the UE is configured, by the base station, with a first number of PRBs for the first PUCCH format or the second PUCCH format, and the UE is configured to use a second number of PRBs for the first PUCCH format or the second PUCCH format for transmission. In some examples, the first number of PRBs for the first PUCCH format or the second PUCCH format is less than or equal to the second number of PRBs for the first PUCCH format or the second PUCCH format. In some examples, the number PRB changing (or called the second number of PRBs) is according to at least one of the followings: the first number of PRB; a code rate; a modulation scheme (Q); a spreading factor; a number of CRC bits, the initial UCI bits; or the extension UCI bits, where the code rate is configured by the network.

[0042] In some examples, the modulation scheme comprises pi/2-BPSK or QPSK corresponding to Q=1 or Q=2, respectively. The number of CRC bits is pre-defined. In some examples, the first number of PRBs for the first PUCCH format is less than or equal to the second number of PRBs for the PUCCH of the first PUCCH format. In some examples, a number of PUCCH resources is determined by the second number of PRBs for the first PUCCH format or the second PUCCH format times a number of subcarriers within a PRB times a number of symbols for the PUCCH for the first PUCCH format or the second PUCCH format carrying the UCI bits. In some examples, the second number of PRBs for the first PUCCH format or the second PUCCH satisfies at least one of the followings: the number of the initial UCI bits plus the number of CRC bits is less than or equal to the number of PUCCH resources times Q times the code rate. Optional, in some examples, the second number of PRBs for the first PUCCH format or the second PUCCH satisfies at least one of the followings: the second number of PRBs for the first PUCCH format or the second PUCCH satisfies at least one of the followings: the number of the extension UCI bits plus the number of the CRC bits is less than or equal to the number of PUCCH resources plus Q plus the code rate.

[0043] Block-wise spreading:

[0044] For the second PUCCH format, representing the bandwidth of the

PUCCH in terms of resource blocks according to clauses 9.2.3, 9.2.5.1 and 9.2.5.2 of [5, TS 38.213] and

is a number of subcarriers in one RB, and

[0045]

[0046] where α₂,α₃, α₅ is a set of non-negative integers.

[0047] For the first PUCCH format, no block-wise spreading is applied

[0048] For the second PUCCH format, block-wise spreading shall be applied according to

, where

[0049] and

is given by the higher-layer parameter occ-Length and w_n is given by Tables 1 and 2 for where n is the index of the orthogonal sequence to use according to clause 9.2.1 of [5, TS 38.213] The quantity is given by the higher-layer parameter occ-Length if provided, otherwise

[0050] Table 1 : Orthogonal sequences

w_n(m) when

[0051] Table: Orthogonal sequences w_n (m) when

[0052] In some examples, the initial UCI bits may comprise at least one of the followings: a number of HARQ-ACK information, a number of SR bits, a number of Part 1 CSI bits, or a number of Part 2 CSI bits. In some examples, the number of CRC bits may comprise at least one of the followings: a first number of CRC bits, or a second number of CRC bits. In some examples, the first number of CRC bits is used for encoding the HARQ-ACK information bits and/or the SR bits and/or the part 1 CSI bits. The second number of CRC bits is used for encoding the part 2 CSI bits. In some examples, the network may configure a UE to use PUCCH of the first PUCCH format or the second PUCCH format, wherein the first PUCCH format and the second PUCCH format have a different PUCCH format index. The UE determines the PUCCH format according the configured PUCCH format index. As an example, the network indicates a PUCCH resource ID to a UE, where the PUCCH resource ID is associated with a PUCCH format index. The UE determines the first PUCCH format or the second PUCCH format according to the PUCCH format index associated with the indicated PUCCH resource ID. [0053] In some examples, the first PUCCH format and the second PUCCH format have a same PUCCH format index (PUCCH format index A). The UE determines the PUCCH from the first PUCCH format and/or the second PUCCH format from a first parameter. In some examples, when the first parameter is configured by the network to the UE, the UE determines the PUCCH format as the first PUCCH format. Optionally, when the first parameter is configured by the network to the UE, the UE determines the PUCCH format as the second PUCCH format. In some examples, if the UE is configured, by the base station, with a first parameter, the first parameter is used to indicate a PUCCH format as the first PUCCH format. In some examples, if the UE is not configured, by the base station, with a first parameter, the UE determines a PUCCH format as the second PUCCH format. In some examples, if the UE is configured, by the base station, with a first parameter, the first parameter is used to indicate a PUCCH format as the first PUCCH format, or if the UE is configured, by the base station, with a second parameter, the second parameter is used to indicate the PUCCH format as the second PUCCH format. In some examples, if the UE is configured, by the base station, with a first value of a first parameter, the first value of the first parameter is used to indicate a PUCCH format as the first PUCCH format, or if the UE is configured, by the base station, with a second value of the first parameter, the second value of the first parameter is used to indicate a PUCCH format as the second PUCCH format. In some examples, the parameter is configured in a RRC information element corresponding to the PUCCH format index A. As an example, the network indicates a PUCCH resource ID to a UE, where the PUCCH resource ID is associated with a PUCCH format index A. In the RRC configuration of PUCCH format index A, when the network configures parameter occ-Length and/or occ-Index, the UE determines the second PUCCH format. Optionally, when the network configures parameter occ-Length and/or occ-Index, the UE determines the first PUCCH format.

[0054] Commercial interests for some embodiments are as follows. 1. Solving issues in the prior art. 2. Providing a method to flexibly configure a PUCCH format. 3. Reducing a signaling overhead. 4. Providing a good communication performance. 5. Providing a high reliability. 6. Some embodiments of the present disclosure are used by 5G-NR chipset vendors, V2X communication system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto- bikes, helmets, and etc., drones (unmanned aerial vehicles), smartphone makers, communication devices for public safety use, AR/VR device maker for example gaming, conference/seminar, education purposes. Some embodiments of the present disclosure are a combination of “techniques/processes” that can be adopted in 3GPP specification to create an end product. Some embodiments of the present disclosure could be adopted in the 5G NR licensed and non-licensed or shared spectrum communications. Some embodiments of the present disclosure propose technical mechanisms.

[0055] FIG. 6 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the system using any suitably configured hardware and/or software. FIG. 6 illustrates the system 700 including a radio frequency (RF) circuitry 710, a baseband circuitry 720, an application circuitry 730, a memory/storage 740, a display 750, a camera 760, a sensor 770, and an input/output (I/O) interface 780, coupled with each other at least as illustrated. The application circuitry 730 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors. The processors may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems running on the system.

[0056] The baseband circuitry 720 may include circuitry such as, but not limited to, one or more single-core or multi core processors. The processors may include a baseband processor. The baseband circuitry may handle various radio control functions that enables communication with one or more radio networks via the RF circuitry. The radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc. In some embodiments, the baseband circuitry may provide for communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN). Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry.

[0057] In various embodiments, the baseband circuitry 720 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency. For example, in some embodiments, baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency. The RF circuitry 710 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. In various embodiments, the RF circuitry 710 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency. For example, in some embodiments, RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.

[0058] In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and/or the application circuitry. As used herein, “circuitry” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuitry, the application circuitry, and/or the memory/storage may be implemented together on a system on a chip (SOC). The memory/storage 740 may be used to load and store data and/or instructions, for example, for system. The memory/storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM)), and/or non-volatile memory, such as flash memory.

[0059] In various embodiments, the I/O interface 780 may include one or more user interfaces designed to enable user interaction with the system and/or peripheral component interfaces designed to enable peripheral component interaction with the system. User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc. Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface. In various embodiments, the sensor 770 may include one or more sensing devices to determine environmental conditions and/or location information related to the system. In some embodiments, the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of, or interact with, the baseband circuitry and/or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite. [0060] In various embodiments, the display 750 may include a display, such as a liquid crystal display and a touch screen display. In various embodiments, the system 700 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR/VR glasses, etc. In various embodiments, system may have more or less components, and/or different architectures. Where appropriate, methods described herein may be implemented as a computer program. The computer program may be stored on a storage medium, such as a non-transitory storage medium. [0061] A person having ordinary skill in the art understands that each of the units, algorithm, and steps described and disclosed in the embodiments of the present disclosure are realized using electronic hardware or combinations of software for computers and electronic hardware. Whether the functions run in hardware or software depends on the condition of application and design requirement for a technical plan. A person having ordinary skill in the art can use different ways to realize the function for each specific application while such realizations should not go beyond the scope of the present disclosure. It is understood by a person having ordinary skill in the art that he/she can refer to the working processes of the system, device, and unit in the above-mentioned embodiment since the working processes of the above-mentioned system, device, and unit are basically the same. For easy description and simplicity, these working processes will not be detailed. [0062] It is understood that the disclosed system, device, and method in the embodiments of the present disclosure can be realized with other ways. The above-mentioned embodiments are exemplary only. The division of the units is merely based on logical liinctions while other divisions exist in realization. It is possible that a plurality of units or components are combined or integrated in another system. It is also possible that some characteristics are omitted or skipped. On the other hand, the displayed or discussed mutual coupling, direct coupling, or communicative coupling operate through some ports, devices, or units whether indirectly or communicatively by ways of electrical, mechanical, or other kinds of forms. The units as separating components for explanation are or are not physically separated. The units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments. Moreover, each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.

[0063] If the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer. Based on this understanding, the technical plan proposed by the present disclosure can be essentially or partially realized as the form of a software product. Or, one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product. The software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the steps disclosed by the embodiments of the present disclosure. The storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other kinds of media capable of storing program codes.

[0064] While the present disclosure has been described in connection with what is considered the most practical and preferred embodiments, it is understood that the present disclosure is not limited to the disclosed embodiments but is intended to cover various arrangements made without departing from the scope of the broadest interpretation of the appended claims.

Claims

What is claimed is:

1. A wireless communication method by a user equipment (UE), comprising: being configured, by a base station, with a first physical uplink control channel (PUCCH) format and/or a second PUCCH format; and transmitting, to the base station, a PUCCH according to the first PUCCH format and/or the second PUCCH format.

2. The method of claim 1, wherein the PUCCH of the first PUCCH format and the PUCCH of the second PUCCH format have at least one of common characteristics: wherein the PUCCH applies a discrete Fourier transform (DFT) transform precoding; wherein in frequency domain, the PUCCH occupies one or more physical resource blocks (PRBs); wherein the PUCCH carries an uplink control information (UCI) with more than 2 bits; or wherein the UCI and a demodulation reference signal (DMRS) are multiplexed in time domain.

3. The method of claim 1, wherein the PUCCH of the second PUCCH format can be configured to apply an orthogonal sequence.

4. The method of claim 3, wherein the orthogonal sequence is pre-defined or defined according to a spreading factor.

5. The method of claim 4, wherein the spreading factor is pre-configured.

6. The method of claim 1, wherein the PUCCH of the first and/or the second PUCCH format carries UCI bits.

7. The method of claim 6, wherein the UE determines a number of the UCI bits according to at least one of the followings: initial UCI bits or extended UCI bits.

8. The method of claim 7, wherein the extended UCI bits are determined according to the initial UCI bits and/or a factor of extension.

9. The method of claim 8, wherein the extended UCI bits are greater than or equal to the initial UCI bits.

10. The method of claim 8, wherein the extended UCI bits are less than or equal to the initial UCI bits times a number of the factor of extension.

11. The method of claim 8, wherein a value of the factor of extension is configured by a base station.

12. The method of claim 7, wherein the extension UCI bits are a repetition of the initial UCI bits.

13. The method of claim 7, wherein the extension UCI bits are determined by a per-group repetition of the initial UCI bits or by per-bit repetition.

14. The method of claim 7, wherein there is a maximum number of the initial UCI bits or a maximum number of the extension UCI bits.

15. The method of claim 14, wherein the maximum number of the initial UCI bits is pre-defined.

16. The method of claim 14, wherein the maximum number of the extension UCI bits is pre-defined according to at least a number of PRB occupied by the PUCCH of the second PUCCH format and/or a value of the factor of extension.

17. The method of claim 14, wherein the maximum number of the initial UCI bits comprises a first maximum number of the initial UCI bits and a second maximum number of the initial UCI bits, the first maximum number of the initial UCI bits is defined for a first number of PRBs occupied by the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format and the second maximum number of the initial UCI bits is defined for a second number of PRBs occupied by the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format.

18. The method of claim 1, wherein the PUCCH of the first PUCCH format adapts a number of PRBs carrying a UCI.

19. The method of claim 18, wherein the UE is configured, by the base station, with a first number of PRBs for the first PUCCH format or the second PUCCH format, and the UE uses a second number of PRBs for the first PUCCH format or the second PUCCH format for transmission.

20. The method of claim 19, wherein the second number of PRBs for the first PUCCH format or the second PUCCH format is less than or equal to the first number of PRBs for the first PUCCH format or the second PUCCH format.

21. The method of claim 1, wherein the UE is configured, by the base station, with a first number of PRBs for the first PUCCH format, and the UE is configured to changes the first number of PRBs for the first PUCCH format to a second number of PRBs for the PUCCH of the first PUCCH format.

22. The method of claim 19 or 21, wherein the second number of PRBs for the PUCCH for the first PUCCH format or the second PUCCH format is according to at least one of the followings: the first number of PRBs; a code rate; a modulation scheme (Q); a spreading factor; a number of cyclic redundancy check (CRC) bits, the initial UCI bits; or the extension UCI bits.

23. The method of claim 22, wherein the code rate is configured by the base station or a number of the CRC bits is pre- defined.

24. The method of claim 22, wherein the modulation scheme (Q) comprises a pi/2-binary phase shift keying (BPSK) or a quadrature PSK (QPSK).

25. The method of claim 22, wherein the QPSK corresponds to Q equal to 1 or Q equal 2.

26. The method of claim 21, wherein the second number of PRBs for the first PUCCH format is less than or equal to the first number of PRBs for the PUCCH of the first PUCCH format.

27. The method of claim 22, wherein the second number of PRBs for the first PUCCH format or the second PUCCH satisfies at least one of the followings: the number of the initial UCI bits plus the number of CRC bits is less than or equal to a number of PUCCH resources times Q times the code rate.

28. The method of claim 27, wherein a number of PUCCH resources is determined by the second number of PRBs for the first PUCCH format or the second PUCCH format times a number of subcarriers within a PRB times a number of symbols for the PUCCH for the first PUCCH format or the second PUCCH format carrying the UCI bits.

29. The method of claim 22, wherein the second number of PRBs for the first PUCCH format or the second PUCCH satisfies at least one of the followings: the number of the extension UCI bits plus the number of the CRC bits is less than or equal to the number of PUCCH resources plus Q plus the code rate.

30. The method of claim 7, wherein the initial UCI bits comprise at least one of the followings: a number of hybrid automatic repeat request acknowledgement (HARQ-ACK) information, a number of scheduling request (SR) bits, a number of part 1 channel state information (CSI) bits, or a number of part 2 CSI bits.

31. The method of claim 30, wherein the number of the CRC bits comprises at least one of the followings: a first number of the CRC bits or a second number of the CRC bits.

32. The method of claim 31, wherein the first number of the CRC bits is used for encoding HARQ-ACK information bits, the SR bits, and/or the part 1 CSI bits.

33. The method of claim 32, wherein the second number of the CRC bits is used for encoding the part 2 CSI bits.

34. The method of claim 1, wherein the UE is configured to use the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format, and the first PUCCH format and the second PUCCH format have a different PUCCH format index.

35. The method of claim 34, wherein the UE determines the first PUCCH format or the second PUCCH format according a configured PUCCH format index.

36. The method of claim 1, wherein the UE is indicated, by the base station, with a PUCCH resource identifier (ID), and the PUCCH resource ID is associated with a PUCCH format index.

37. The method of claim 36, wherein the UE determines the first PUCCH format or the second PUCCH format according to the PUCCH format index associated with the PUCCH resource ID.

38. The method of claim 1, wherein the first PUCCH format and the second PUCCH format have a same PUCCH format index.

39. The method of claim 1 , wherein the UE determines the PUCCH from the first PUCCH format and/or the second PUCCH format from a first parameter.

40. The method of claim 39, wherein the first parameter is configured by the base station, and the UE determines a PUCCH format as the first PUCCH format.

41. The method of claim 39, wherein the first parameter is configured by the base station, and the UE determines a PUCCH format as the second PUCCH format.

42. The method of claim 1, wherein if the UE is configured, by the base station, with a first parameter, the first parameter is used to indicate a PUCCH format as the first PUCCH format.

43. The method of claim 1, wherein if a first parameter is absent in PUCCH configuration, the UE determines a PUCCH format as the second PUCCH format.

44. The method of claim 1, wherein if the UE is configured, by the base station, with a first parameter, the first parameter is used to indicate a PUCCH format as the first PUCCH format, or if the UE is configured, by the base station, with a second parameter, the second parameter is used to indicate the PUCCH format as the second PUCCH format.

45. The method of claim 1, wherein if the UE is configured, by the base station, with a first value of a first parameter, the first value of the first parameter is used to indicate a PUCCH format as the first PUCCH format, or if the UE is configured, by the base station, with a second value of the first parameter, the second value of the first parameter is used to indicate a PUCCH format as the second PUCCH format.

46. The method of claim 1, wherein the first PUCCH format and/or the second PUCCH format has a PUCCH format index A.

47. The method of claim 46, wherein the UE is configured, by the base station, with a parameter, and the parameter is configured in a radio resource control (RRC) information element corresponding to the PUCCH format index A.

48. The method of claim 46, wherein the UE is indicated, by the base station, with a PUCCH resource ID, and the PUCCH resource ID is associated with the PUCCH format index A.

49. The method of claim 46, wherein in an RRC configuration of the PUCCH format index A, when the UE is configured, by the base station, with an occ-length parameter and/or an occ-index parameter, the UE determines a PUCCH format as the second PUCCH format.

50. The method of claim 46, wherein in an RRC configuration of the PUCCH format index A, when the UE is configured, by the base station, with an occ-length parameter and/or an occ-index parameter, the UE determines a PUCCH format as the first PUCCH format.

51. A wireless communication method by a base station, comprising: configuring, to a user equipment (UE), a first physical uplink control channel (PUCCH) format and/or a second PUCCH format; and receiving, from the UE, a PUCCH according to the first PUCCH format and/or the second PUCCH format.

52. The method of claim 51 , wherein the PUCCH of the first PUCCH format and the PUCCH of the second PUCCH format have at least one of common characteristics: wherein the PUCCH applies a discrete Fourier transform (DFT) transform precoding; wherein in frequency domain, the PUCCH occupies one or more physical resource blocks (PRBs); wherein the PUCCH carries an uplink control information (UCI) with more than 2 bits; or wherein the UCI and a demodulation reference signal (DMRS) are multiplexed in time domain.

53. The method of claim 51, wherein the PUCCH of the second PUCCH format can be configured to apply an orthogonal sequence.

54. The method of claim 53, wherein the orthogonal sequence is pre-defined or defined according to a spreading factor.

55. The method of claim 54, wherein the spreading factor is pre-configured.

56. The method of claim 51, wherein the PUCCH of the first and/or the second PUCCH format carries UCI bits.

57. The method of claim 56, wherein the base station controls the UE to determine a number of the UCI bits according to at least one of the followings: initial UCI bits or extended UCI bits.

58. The method of claim 57, wherein the extended UCI bits are determined according to the initial UCI bits and/or a factor of extension.

59. The method of claim 58, wherein the extended UCI bits are greater than or equal to the initial UCI bits.

60. The method of claim 58, wherein the extended UCI bits are less than or equal to the initial UCI bits times a number of the factor of extension.

61. The method of claim 58, wherein a value of the factor of extension is configured by a base station.

62. The method of claim 57, wherein the extension UCI bits are a repetition of the initial UCI bits.

63. The method of claim 57, wherein the extension UCI bits are determined by a per-group repetition of the initial UCI bits or by per-bit repetition.

64. The method of claim 57, wherein there is a maximum number of the initial UCI bits or a maximum number of the extension UCI bits.

65. The method of claim 64, wherein the maximum number of the initial UCI bits is pre-defined.

66. The method of claim 64, wherein the maximum number of the extension UCI bits is pre-defined according to at least a number of PRB occupied by the PUCCH of the second PUCCH format and/or a value of the factor of extension.

67. The method of claim 64, wherein the maximum number of the initial UCI bits comprises a first maximum number of the initial UCI bits and a second maximum number of the initial UCI bits, the first maximum number of the initial UCI bits is defined for a first number of PRBs occupied by the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format and the second maximum number of the initial UCI bits is defined for a second number of PRBs occupied by the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format.

68. The method of claim 51 , wherein the PUCCH of the first PUCCH format adapts a number of PRBs carrying a UCI.

69. The method of claim 68, wherein the base station is configured to configure, to the UE, a first number of PRBs for the first PUCCH format or the second PUCCH format, and the base station controls the UE to use a second number of PRBs for the first PUCCH format or the second PUCCH format for transmission.

70. The method of claim 69, wherein the second number of PRBs for the first PUCCH format or the second PUCCH format is less than or equal to the first number of PRBs for the first PUCCH format or the second PUCCH format.

71. The method of claim 51, wherein the base station is configured to configure, to the UE, a first number of PRBs for the first PUCCH format, and the UE is configured to changes the first number of PRBs for the first PUCCH format to a second number of PRBs for the PUCCH of the first PUCCH format.

72. The method of claim 69 or 71, wherein the second number of PRBs for the PUCCH for the first PUCCH format or the second PUCCH format is according to at least one of the followings: the first number of PRBs; a code rate; a modulation scheme (Q); a spreading factor; a number of cyclic redundancy check (CRC) bits, the initial UCI bits; or the extension UCI bits.

73. The method of claim 72, wherein the code rate is configured by the base station or a number of the CRC bits is pre- defined.

74. The method of claim 72, wherein the modulation scheme (Q) comprises a pi/2-binary phase shift keying (BPSK) or a quadrature PSK (QPSK).

75. The method of claim 72, wherein the QPSK corresponds to Q equal to 1 or Q equal 2.

76. The method of claim 71, wherein the second number of PRBs for the first PUCCH format is less than or equal to the first number of PRBs for the PUCCH of the first PUCCH format.

77. The method of claim 72, wherein the second number of PRBs for the first PUCCH format or the second PUCCH satisfies at least one of the followings: the number of the initial UCI bits plus the number of CRC bits is less than or equal to a number of PUCCH resources times Q times the code rate.

78. The method of claim 77, wherein a number of PUCCH resources is determined by the second number of PRBs for the first PUCCH format or the second PUCCH format times a number of subcarriers within a PRB times a number of symbols for the PUCCH for the first PUCCH format or the second PUCCH format carrying the UCI bits.

79. The method of claim 72, wherein the second number of PRBs for the first PUCCH format or the second PUCCH satisfies at least one of the followings: the number of the extension UCI bits plus the number of the CRC bits is less than or equal to the number of PUCCH resources plus Q plus the code rate.

80. The method of claim 57, wherein the initial UCI bits comprise at least one of the followings: a number of hybrid automatic repeat request acknowledgement (HARQ-ACK) information, a number of scheduling request (SR) bits, a number of part 1 channel state information (CSI) bits, or a number of part 2 CSI bits.

81. The method of claim 80, wherein the number of the CRC bits comprises at least one of the followings: a first number of the CRC bits or a second number of the CRC bits.

82. The method of claim 81, wherein the first number of the CRC bits is used for encoding HARQ-ACK information bits, the SR bits, and/or the part 1 CSI bits.

83. The method of claim 82, wherein the second number of the CRC bits is used for encoding the part 2 CSI bits.

84. The method of claim 51 , wherein the base station is configured to control the UE to use the PUCCH of the first PUCCH format or the PUCCH of the second PUCCH format, and the first PUCCH format and the second PUCCH format have a different PUCCH format index.

85. The method of claim 84, wherein the base station controls the UE to determine the first PUCCH format or the second PUCCH format according a configured PUCCH format index.

86. The method of claim 51, wherein the base station is configured to indicate, to the UE, a PUCCH resource identifier (ID), and the PUCCH resource ID is associated with a PUCCH format index.

87. The method of claim 86, wherein the base station is configured to control the UE to determine the first PUCCH format or the second PUCCH format according to the PUCCH format index associated with the PUCCH resource ID.

88. The method of claim 51, wherein the first PUCCH format and the second PUCCH format have a same PUCCH format index.

89. The method of claim 51 , wherein the base station is configured to control the UE to determine the PUCCH from the first PUCCH format and/or the second PUCCH format from a first parameter.

90. The method of claim 89, wherein the first parameter is configured by the base station, and the base station is configured to control the UE to determine a PUCCH format as the first PUCCH format.

91. The method of claim 89, wherein the first parameter is configured by the base station, and the base station is configured to control the UE to determine a PUCCH format as the second PUCCH format.

92. The method of claim 51, wherein if the base station is configured to configure, to the UE, a first parameter, the first parameter is used to indicate a PUCCH format as the first PUCCH format.

93. The method of claim 51, wherein if a first parameter is absent in PUCCH configuration, the base station is configured to control the UE to determine a PUCCH format as the second PUCCH format.

94. The method of claim 51, wherein if the base station is configured to configure, to the UE, a first parameter, the first parameter is used to indicate a PUCCH format as the first PUCCH format, or if the base station is configured to configure, to the UE, a second parameter, the second parameter is used to indicate the PUCCH format as the second PUCCH format.

95. The method of claim 51 , wherein if the base station is configured to configure, to the UE, a first value of a first parameter, the first value of the first parameter is used to indicate a PUCCH format as the first PUCCH format, or if the base station is configured to configure, to the UE, a second value of the first parameter, the second value of the first parameter is used to indicate a PUCCH format as the second PUCCH format.

96. The method of claim 51 , wherein the first PUCCH format and/or the second PUCCH format has a PUCCH format index A.

97. The method of claim 96, wherein the base station is configured to configure, to the UE, a parameter, and the parameter is configured in a radio resource control (RRC) information element corresponding to the PUCCH format index A.

98. The method of claim 96, wherein the base station is configured to indicate, to the UE, a PUCCH resource ID, and the PUCCH resource ID is associated with the PUCCH format index A.

99. The method of claim 96, wherein in an RRC configuration of the PUCCH format index A, when the base station is configured to configure, to the UE, an occ-length parameter and/or an occ-index parameter, the base station is configured to control the UE to determine a PUCCH format as the second PUCCH format.

100. The method of claim 96, wherein in an RRC configuration of the PUCCH format index A, when the base station is configured to configure, to the UE, an occ-length parameter and/or an occ-index parameter, the base station controls the UE to determine a PUCCH format as the first PUCCH format.

101. A user equipment (UE), comprising: a memory; a transceiver; and a processor coupled to the memory and the transceiver; wherein the processor is configured to perform the method of any one of claims 1 to 50.

102. A base station, comprising: a memory; a transceiver; and a processor coupled to the memory and the transceiver; wherein the processor is configured to perform the method of any one of claims 51 to 100.

103. A non-transitory machine-readable storage medium having stored thereon instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 100.

104. A chip, comprising: a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the method of any one of claims 1 to 100.

105. A computer readable storage medium, in which a computer program is stored, wherein the computer program causes a computer to execute the method of any one of claims 1 to 100.

106. A computer program product, comprising a computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 100.

107. A computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 100.