Method and apparatus for transmitting direction indication in a wireless communication system

Abstract

A method and device for transmission direction indication in a wireless communication system are provided to improve the indication efficiency of the transmission direction for duplex enhancement. A user equipment in the wireless communication system includes: receiving an indication of which symbol the duplex enhancement is applicable to; if / when the duplex enhancement is applicable to a first downlink symbol, performing uplink transmission on the first downlink symbol; and if / when the duplex enhancement is not applicable to a second downlink symbol, canceling the uplink transmission on the second downlink symbol.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communication networks, and more particularly, to methods and apparatus for transmitting directional indications in wireless communication systems. Background Art

[0002] With the rapid growth of the communication demand for large amounts of data to and from mobile communication devices, traditional mobile voice communication networks have evolved into networks that communicate with Internet Protocol (IP) data packets. Such IP data packet communications can provide IP-bearing voice, multimedia, multicast and on-demand communication services to users of mobile communication devices.

[0003] An exemplary network structure is an Evolved Universal Terrestrial Radio Access Network (E-UTRAN). The E-UTRAN system can provide high data throughput to implement the above-mentioned IP-bearing voice and multimedia services. Currently, the 3GPP standards organization is discussing new next-generation (e.g., 5G) new radio technologies. Therefore, changes to the current body of 3GPP standards are currently being submitted and considered to evolve and complete the 3GPP standards. Summary of the invention

[0004] A method, system and device for transmission direction indication in a wireless communication system are provided to improve the indication efficiency of the transmission direction for duplex enhancement.

[0005] In various embodiments, utilizing this and other concepts, systems, and methods of the present invention, a method for a user equipment (UE) in a wireless communication system includes: receiving an indication of which symbol duplex enhancement is applicable to; if / when duplex enhancement is applicable to a first downlink (DL) symbol, performing an UL transmission on the first DL symbol; and if / when duplex enhancement is not applicable to a second DL symbol, canceling an uplink (UL) transmission on the second DL symbol. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 A diagram of a wireless communication system is shown in accordance with an exemplary embodiment.

[0007] Figure 2 is a block diagram of a transmitter system (also referred to as an access network) and a receiver system (also referred to as a user equipment or UE) according to an exemplary embodiment.

[0008] Figure 3 is a functional block diagram of a communication system according to an exemplary embodiment.

[0009] Figure 4 According to an exemplary embodiment Figure 3 Functional block diagram of the program code.

[0010] Figure 5 According to [1] 3GPP TS 38.211 V15.7.0, "NR physical channels and modulation" Figure 4 .3.1-1: Reproduction of uplink-downlink timing relationship.

[0011] Figure 6 is a flowchart of a UE receiving time slot format information from a base station according to an embodiment of the present invention.

[0012] Figure 7 is a flow chart of a UE receiving an indication of which symbol duplex enhancement is applicable according to an embodiment of the present invention. DETAILED DESCRIPTION

[0013] The present invention described herein may be applied to or implemented in the exemplary wireless communication systems and devices described below. In addition, the present invention is primarily described in the context of the 3GPP architecture reference model. However, it should be understood that with the disclosed information, those skilled in the art can easily make adjustments for use and implement various aspects of the present invention in the 3GPP2 network architecture as well as other network architectures.

[0014] The exemplary wireless communication systems and devices described below employ wireless communication systems that support broadcast services. Wireless communication systems are widely deployed to provide various types of communications, such as voice, data, etc. These systems can be based on code division multiple access (CDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), 3GPP Long Term Evolution (LTE) wireless access, 3GPP Long Term Evolution Advanced (LTE-A) wireless access, 3GPP2 Ultra Mobile Broadband (UMB), WiMax, 3GPP New Radio (NR), or some other modulation technology.

[0015] Specifically, the exemplary wireless communication systems and devices described below may be designed to support one or more standards, such as those provided by a consortium named “3rd Generation Partnership Project” referred to herein as 3GPP, including: [1] 3GPP TS 38.211 V15.7.0, “NR Physical Channels and Modulation”; [2] 3GPP TS 38.213 V16.6.0, “NR Physical Layer Procedures for Control”; and [3] RP-212707, “Draft SID for NR Duplex Operation Evolution”. The standards and documents listed above are expressly and completely incorporated herein by reference in their entirety.

[0016] Figure 1 A multiple access wireless communication system according to an embodiment of the present invention is shown. An access network 100 (AN) includes multiple antenna groups, one of which includes antenna groups 104 and 106, another includes antenna groups 108 and 110, and another includes antenna groups 112 and 114. Figure 1 1, only two antennas are shown for each antenna group, but each antenna group may utilize more or fewer antennas. Access terminal (AT) 116 communicates with antennas 112 and 114, where antennas 112 and 114 transmit information to access terminal 116 via forward link 120 and receive information from AT 116 via reverse link 118. AT 122 communicates with antennas 106 and 108, where antennas 106 and 108 transmit information to AT 122 via forward link 126 and receive information from AT 122 via reverse link 124. In an FDD system, communication links 118, 120, 124, and 126 may use different frequencies for communication. For example, forward link 120 may use a different frequency than the frequency used by reverse link 118.

[0017] Each antenna group and / or the area in which the antenna group is designed to communicate is often referred to as a sector of the access network. In an embodiment, the antenna groups are each designed to communicate with access terminals in a sector of the area covered by the access network 100.

[0018] In communicating via forward links 120 and 126, the transmit antennas of access network 100 may utilize beamforming in order to improve the signal-to-noise ratio of the forward links for the different access terminals 116 and 122. Also, an access network that uses beamforming to transmit to access terminals that are randomly dispersed throughout the coverage area of ​​the access network will generally cause less interference to access terminals in neighboring cells than an access network that transmits to all of its access terminals via a single antenna.

[0019] AN may be a fixed station or base station for communicating with a terminal, and may also be referred to as an access point, Node B, base station, enhanced base station, eNodeB, or some other term. AT may also be referred to as user equipment (UE), a wireless communication device, a terminal, an access terminal, or some other term.

[0020] Figure 2 2 is a simplified block diagram of an embodiment of a transmitter system 210 (also referred to as an access network) and a receiver system 250 (also referred to as an access terminal (AT) or user equipment (UE)) in a MIMO system 200. At the transmitter system 210, traffic data for a number of data streams is provided from a data source 212 to a transmit (TX) data processor 214.

[0021] In one embodiment, each data stream is transmitted via a respective transmit antenna.TX data processor 214 formats, codes, and interleaves the traffic data for each data stream based on a particular coding scheme selected for that data stream to provide coded data.

[0022] The coded data for each data stream may be multiplexed with pilot data using OFDM techniques. The pilot data is typically a known data pattern that is processed in a known manner and may be used at the receiver system to estimate the channel response. The multiplexed pilot and coded data for each data stream is then modulated (e.g., symbol mapped) based on a particular modulation scheme (e.g., BPSK, QPSK, M-PSK, or M-QAM) selected for that data stream to provide modulation symbols. The data rate, coding, and modulation for each data stream may be determined by instructions executed by processor 230.

[0023] The modulation symbols for all data streams are then provided to a TX MIMO processor 220, which may further process the modulation symbols (e.g., for OFDM). TX MIMO processor 220 then provides NT modulation symbol streams to NT transmitters (TMTR) 222a through 222t. In certain embodiments, TX MIMO processor 220 applies beamforming weights to the symbols of the data streams and to the antenna from which the symbol is being transmitted.

[0024] Each transmitter 222 receives and processes a respective symbol stream to provide one or more analog signals, and further conditions (e.g., amplifies, filters, and upconverts) the analog signals to provide a modulated signal suitable for transmission over the MIMO channel. TThe antennas 224a to 224t transmit N signals from the transmitters 222a to 222t. T a modulated signal.

[0025] At the receiver system 250, N R The transmitted modulated signals are received by each antenna 252a through 252r and the received signal from each antenna 252 is provided to a respective receiver (RCVR) 254a through 254r. Each receiver 254 conditions (e.g., filters, amplifies, and downconverts) a respective received signal, digitizes the conditioned signal to provide samples, and further processes the samples to provide a corresponding "received" symbol stream.

[0026] RX data processor 260 then extracts the N R The receiver 254 receives and processes N R received symbol streams to provide N T The RX data processor 260 then demodulates, deinterleaves, and decodes each detected symbol stream to recover the traffic data for the data stream. The processing by the RX data processor 260 is complementary to the processing performed by the TX MIMO processor 220 and the TX data processor 214 at the transmitter system 210.

[0027] Processor 270 periodically determines which pre-coding matrix to use (discussed below). Processor 270 formulates a reverse link message comprising a matrix index portion and a rank value portion.

[0028] The reverse link message may include various types of information related to the communication link and / or the received data stream. The reverse link message is then processed by the TX data processor 238, which also receives traffic data for a number of data streams from the data source 236, modulated by the modulator 280, conditioned by the transmitters 254a to 254r, and transmitted back to the transmitter system 210.

[0029] At the transmitter system 210, the modulated signal from the receiver system 250 is received by the antenna 224, conditioned by the receiver 222, demodulated by the demodulator 240, and processed by the RX data processor 242 to extract the reverse link message transmitted by the receiver system 250. The processor 230 then determines which precoding matrix to use to determine the beamforming weights and then processes the extracted message.

[0030] The memory 232 may be used to temporarily store some buffer / calculated data from 240 or 242 through the processor 230, store some buffer data from 212, or store some specific program codes. Also, the memory 272 may be used to temporarily store some buffer / calculated data from 260 through the processor 270, store some buffer data from 236, or store some specific program codes.

[0031] Steering Figure 3 , this figure shows an alternative simplified functional block diagram of a communication device according to one embodiment of the present invention. Figure 3 As shown in FIG. , the communication device 300 in the wireless communication system can be used to implement Figure 1 UE (or AT) 116 and 122 in, and the wireless communication system is preferably an NR system. The communication device 300 may include an input device 302, an output device 304, a control circuit 306, a central processing unit (CPU) 308, a memory 310, a program code 312, and a transceiver 314. The control circuit 306 executes the program code 312 in the memory 310 through the CPU 308, thereby controlling the operation of the communication device 300. The communication device 300 can receive a signal input by a user through the input device 302 (for example, a keyboard or a keypad), and can output images and sounds through the output device 304 (for example, a monitor or a speaker). The transceiver 314 is used to receive and transmit wireless signals, pass the received signal to the control circuit 306, and wirelessly output the signal generated by the control circuit 306.

[0032] Figure 4 According to an embodiment of the present invention Figure 3 4. In this embodiment, program code 312 includes application layer 400, layer 3 portion 402, and layer 2 portion 404, and is coupled to layer 1 portion 406. Layer 3 portion 402 generally performs radio resource control. Layer 2 portion 404 generally performs link control. Layer 1 portion 406 generally performs physical connectivity.

[0033] For LTE, LTE-A or NR systems, the layer 2 portion 404 may include a radio link control (RLC) layer and a medium access control (MAC) layer. The layer 3 portion 402 may include a radio resource control (RRC) layer.

[0034] Any two or more of the following paragraphs, (sub)bullets, points, actions or claims described in each invention may be logically, reasonably and appropriately combined to form a specific method.

[0035] Any sentence, paragraph, (sub) bullet, key point, action or claim described in each of the following invention paragraphs or sections can be implemented independently and individually to form a specific method or device. The following disclosure of the present invention, such as "based on", "more specifically", "example", etc., is only a possible embodiment that does not limit a specific method or device.

[0036] The frame structure used in the New RAT (NR) for 5G is to accommodate various types of requirements for time and frequency resources (e.g., [1] 3GPP TS 38.211 V15.7.0, “NR Physical Channels and Modulation”), for example, from ultra-low latency (~0.5 ms) to delay-tolerant services for Machine Type Communication (MTC), from high peak rates for enhanced Mobile Broadband (eMBB) to very low data rates for MTC. The focus of this study is on low latency aspects, such as short Transmission Time Interval (TTI), while other aspects of mixing / adapting different TTIs may also be considered in the study. In addition to different services and requirements, forward compatibility is also an important consideration in the initial NR frame structure design, as not all NR features are included in the initial stage / release.

[0037] Reducing latency of the protocol is an important improvement between different generations / releases, which can improve efficiency and meet new application requirements, such as real-time services. An effective method often used to reduce latency is to reduce the length of TTI, from 10ms in 3G to 1ms in LTE.

[0038] When it comes to NR, the situation becomes somewhat different because backward compatibility is not necessary. The basic parameters can be adjusted so that reducing the number of symbols in the TTI will not be the only tool for changing the TTI length. Using the LTE basic parameters as an example, it includes 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols in 1ms and a subcarrier spacing of 15KHz. When the subcarrier spacing goes to 30KHz, under the assumption of the same FFT size and the same Cyclic Prefix (CP) structure, there will be 28 OFDM symbols in 1ms, and the TTI becomes 0.5ms equivalently, with the number of OFDM symbols in the TTI remaining the same. This means that the design between different TTI lengths can be maintained together with good scalability performed on the subcarrier spacing. Of course, there will always be trade-offs for subcarrier spacing selection, such as Fast Fourier Transform (FFT) size, definition / number of Physical Resource Blocks (PRBs), design of CPs, supportable system bandwidth, etc. When NR considers larger system bandwidth and larger coherence bandwidth, including larger subcarrier spacing is a natural choice.

[0039] The following is more details on the NR frame structure, channels and basic parameter design based on [1] 3GPP TS 38.211 V15.7.0, “NR physical channels and modulation”:

[0040] ******************Quote starts********************

[0041] 4.3.1 Frame and Subframe

[0042] Downlink and uplink transmissions are organized into f =(Δf max N f / 100)·T c = 10ms duration frame, each frame consists of T sf =(Δf max N f / 1000)·T c =10 subframes of 1ms duration. The number of consecutive OFDM symbols in each subframe is Each frame is divided into two equally sized half-frames of five sub-frames, each with half-frame 0 consisting of sub-frames 0-4 and half-frame 1 consisting of sub-frames 5-9.

[0043] On a carrier, there is a set of frames in the uplink and a set of frames in the downlink.

[0044] The uplink frame number i for transmission from the UE will precede the start of the corresponding downlink frame at the UE by T TA =(N TA +N TA,offset )T c Start, where N TA,offset Given by [5, TS 38.213].

[0045] Figure 5 According to [1] 3GPP TS 38.211 V15.7.0, "NR physical channels and modulation" Figure 4 .3.1-1: Reproduction of uplink-downlink timing relationship.

[0046] 4.3.2 Time Slot

[0047] For a subcarrier spacing configuration μ, the time slots are numbered in ascending order within a subframe as And they are numbered in increasing order within the frame. Existing in the time slot consecutive OFDM symbols, where Depends on the cyclic prefix given in Tables 4.3.2-1 and 4.3.2-2. Slots in a subframe The beginning of the OFDM symbol in the same subframe is in time Align the beginning of .

[0048] The OFDM symbols in a slot can be classified as 'downlink', 'variable' or 'uplink'. The signalling of the slot format is described in section 11.1 of [5, TS 38.213].

[0049] In a time slot in a downlink frame, the UE will assume that downlink transmissions occur only in 'downlink' or 'variable' symbols.

[0050] In the time slots in this uplink frame, the UE shall transmit only in the 'uplink' or 'variable' symbols.

[0051] A UE that is not capable of full-duplex communication among all cells within a cell group and that does not support simultaneous transmission and reception as defined by the parameters simultaneousRxTxInterBandENDC, simultaneousRxTxInterBandCA or simultaneousRxTxSUL [10, TS 38.306] is expected to transmit in the uplink in one cell within the cell group no earlier than N after the end of the last received downlink symbol in the same or a different cell within the cell group. Rx-Tx T c , where N Rx-Tx Given in Table 4.3.2-3.

[0052] A UE that is not capable of full-duplex communication among all cells within a cell group and that does not support simultaneous transmission and reception as defined by the parameters simultaneousRxTxInterBandENDC, simultaneousRxTxInterBandCA or simultaneousRxTxSUL [10, TS 38.306] is expected to receive in the downlink in one cell within the cell group no earlier than N after the end of the last transmitted uplink symbol in the same or a different cell within the cell group. Tx-Rx T c , where N Tx-Rx Given in Table 4.3.2-3.

[0053] A UE not capable of full-duplex communication is expected to transmit in the uplink no earlier than N seconds after the end of the last received downlink symbol in the same cell. Rx-Tx T c , where N Rx-Tx Given in Table 4.3.2-3.

[0054] A UE not capable of full-duplex communication is expected to receive in the downlink no earlier than N after the end of the last transmitted uplink symbol in the same cell. Tx-Rx T c , where N Tx-Rx Given in Table 4.3.2-3.

[0055] Table 4.3.2-1: Number of OFDM symbols per slot, slots per frame, and slots per subframe for standard cyclic prefix.

[0056]

[0057] Table 4.3.2-2: Number of OFDM symbols per slot, slots per frame, and slots per subframe for extended cyclic prefix.

[0058]

[0059] Table 4.3.2-3: Transition time N Rx-Tx and N Tx-Rx

[0060] Transition Time FR1 FR2 <![CDATA[N Tx-Rx ]]> 25600 13792 <![CDATA[N Rx-Tx ]]> 25600 13792

[0061] 4.4.4.3 Common resource blocks

[0062] The common resource blocks are numbered upwards in the frequency domain starting from 0 for the subcarrier spacing configuration μ. The center of subcarrier 0 of common resource block 0 for subcarrier spacing configuration μ coincides with 'point A'.

[0063] Number of common resource blocks in the frequency domain The relationship between and the resource element (k, l) for the subcarrier spacing configuration μ is given by:

[0064]

[0065] Where k is defined relative to point A, such that k=0 corresponds to subcarriers concentrated around point A.

[0066] 4.4.4.4 Physical Resource Block

[0067] The physical resource blocks for subcarrier configuration μ are defined in the bandwidth part and are numbered from 0 to Where i is the number of bandwidth parts. The physical resource blocks in bandwidth part i With common resource blocks The relationship between is given by the following formula:

[0068]

[0069] in is the common resource block where the bandwidth portion starts relative to the common resource block 0. When there is no risk of confusion, the index μ may be dropped.

[0070] 4.4.4.5 Virtual Resource Block

[0071] Virtual resource blocks are defined within the bandwidth portion and are numbered from 0 to Where i is the number of bandwidth parts.

[0072] 4.4.5 Bandwidth

[0073] The bandwidth part is the given basis parameter μ defined in subclause 4.4.4.3 for bandwidth part i on a given carrier. i A subset of contiguous common resource blocks. The starting position in the bandwidth portion and resource blocks The number of and The configuration of bandwidth parts is described in section 12 of [5, TS38.213].

[0074] A UE may be configured with up to four bandwidth parts in the downlink, with a single downlink bandwidth part being active at a given time. The UE is not expected to receive PDSCH, PDCCH or CSI-RS (except RRM) outside the active bandwidth part.

[0075] The UE may be configured with up to four bandwidth parts in the uplink, of which a single uplink bandwidth part is active at a given time. If the UE is configured with a supplementary uplink, the UE may additionally be configured with up to four bandwidth parts in the supplementary uplink, of which a single supplementary uplink bandwidth part is active at a given time. The UE shall not transmit PUSCH or PUCCH outside the active bandwidth part. For an active cell, the UE shall not transmit SRS outside the active bandwidth part.

[0076] Unless otherwise specified, the description in this specification applies to each of the bandwidth parts. and The index μ is discarded in .

[0077] *****************END OF QUOTE*****************

[0078] Slot format information (SFI) is introduced to indicate the transmission direction of a symbol, such as DL, UL or variable. SFI can be indicated or disclosed by several signals, such as RRC configuration, DCI for SFI, scheduling DCI. If more than one direction is indicated for a symbol, some conflict handling will be required. The following is quoted from [2] 3GPP TS38.213V16.6.0, "NR physical layer procedures for control" for more details on SFI and conflict handling rules:

[0079] ******************Quote starts*****************

[0080] 11.1 Timeslot Configuration

[0081] The slot format contains downlink symbols, uplink symbols, and variable symbols.

[0082] The following applies to each serving cell.

[0083] If the UE is provided with tdd-UL-DL-ConfigurationCommon, the UE sets the slot format of each slot over a number of slots as indicated by tdd-UL-DL-ConfigurationCommon.

[0084] tdd-UL-DL-ConfigurationCommon provides

[0085] - Reference SCS configuration μ via referenceSubcarrierSpacing ref

[0086] -pattern1.

[0087] pattern1 provides

[0088] -Configuration period of P milliseconds slots via dl-UL-TransmissionPeriodicity

[0089] - timeslots with only downlink symbols via nrofDownlinkSlots slots Number of

[0090] - Downlink symbols via nrofDownlinkSymbols sym Number of

[0091] - timeslots with only uplink symbols u via nrofUplinkSlots slots Number of

[0092] - Uplink symbols u via nrofUplinkSymbols sym Number of

[0093] Value P = 0.625 milliseconds only for μ ref = 3 is valid. Value P = 1.25 ms is only valid for μ ref =2 or μ ref = 3 is valid. Value P = 2.5 ms is only valid for μ ref =1, μ ref =2 or μ ref ＝ 3 is valid.

[0094] The P millisecond slot configuration period contains the SCS configuration μ ref of From the perspective of S time slots, the first d slots The time slots contain only downlink symbols, and the last u slots The first time slot contains only uplink symbols. slotsAfter time slots d sym symbols are downlink symbols. slots u time slots ago sym symbols are uplink symbols. The remaining A variable symbol.

[0095] The first symbol of every 20 / P period is the first symbol in an even frame.

[0096] If tdd-UL-DL-ConfigurationCommon provides both pattern1 and pattern2, the UE sets the slot format per slot over a first number of slots as indicated by pattern1, and the UE sets the slot format per slot over a second number of slots as indicated by pattern2.

[0097] pattern2 provides

[0098] -Configuration period of P2 milliseconds slots via dl-UL-TransmissionPeriodicity

[0099] - timeslots with only downlink symbols via nrofDownlinkSlots slots,2 Number of

[0100] - Downlink symbols via nrofDownlinkSymbols sym,2 Number of

[0101] - timeslots with only uplink symbols u via nrofUplinkSlots slots ,2 Number of

[0102] - Uplink symbols u via nrofUplinkSymbols sym , the number of 2

[0103] tdd-UL-DL-ConfigurationDedicated provides

[0104] - A set of slot configurations via slotSpecificConfigurationsToAddModList

[0105] - for each time slot configuration of the set of time slot configurations

[0106] - The slot index of the slot provided by slotIndex

[0107] - A set of symbols for the time slot by symbols, where

[0108] - If symbols = allDownlink, then all symbols in the slot are downlink

[0109] If symbols = allUplink, then all symbols in the slot are uplink.

[0110] - If symbols = explicit, then nrofDownlinkSymbols provides the number of downlink first symbols in the slot, and nrofUplinkSymbols provides the number of uplink last symbols in the slot. If nrofDownlinkSymbols is not provided, then there is no downlink first symbol in the slot, and if nrofUplinkSymbols is not provided, then there is no uplink last symbol in the slot. The remaining symbols in the slot are variable.

[0111] For each slot with the corresponding index provided by slotIndex, the UE applies the format provided by the corresponding symbols. The UE does not expect tdd-UL-DL-ConfigurationDedicated indication as uplink or downlink symbols, nor does it expect tdd-UL-DL-ConfigurationCommon indication as downlink or uplink symbols.

[0112] For each timeslot configuration provided by tdd-UL-DL-ConfigurationDedicated, the reference SCS configuration is the reference SCS configuration μ provided by tdd-UL-DL-ConfigurationCommon. ref .

[0113] The number of downlink symbols, uplink symbols and variable symbols in a slot configuration period and each slot of the slot configuration period are determined according to tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated and are common to each configured BWP.

[0114] The UE considers the symbols indicated as downlink in the time slot by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated as available for reception, and considers the symbols indicated as uplink in the time slot by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated as available for transmission.

[0115] For the set of symbols in a slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), if the UE is not configured to monitor PDCCH of DCI format 2_0, or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE

[0116] - If the UE receives a corresponding indication of the DCI format, the UE receives the PDSCH or CSI-RS in a group of symbols in the time slot.

[0117] If the UE receives a corresponding indication of a DCI format, a RAR UL grant, a fallbackRAR UL grant or a successRAR, the UE transmits PUSCH, PUCCH, PRACH or SRS in the set of symbols of the timeslot

[0118] For single carrier operation in unpaired spectrum, if the UE is configured by a higher layer to receive PDCCH or PDSCH or CSI-RS or DLPRS in a group of symbols in a time slot, then the UE receives PDCCH, PDSCH, CSI-RS or DL ​​PRS if the UE does not detect a DCI format that indicates to the UE that PUSCH, PUCCH, PRACH or SRS is transmitted in at least one symbol of the group of symbols in the time slot; otherwise, the UE does not receive PDCCH or PDSCH or CSI-RS or DL ​​PRS in the group of symbols in the time slot.

[0119] For a set of symbols in a time slot indicated to the UE as uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, when the PDCCH, PDSCH or CSI-RS overlaps (even partially) with the said set of symbols in the time slot, the UE does not receive the PDCCH, PDSCH or CSI-RS.

[0120] For a group of symbols in a time slot indicated to the UE as uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, if the UE does not have a measurement gap, the UE does not receive the DL PRS in the group of symbols in the time slot.

[0121] For a set of symbols in a time slot indicated to the UE as downlink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigDedicated, the UE does not transmit PUSCH, PUCCH or PRACH or SRS when PUSCH, PUCCH or PRACH or SRS overlaps (even partially) with the set of symbols of the time slot.

[0122] For a set of symbols in a time slot that are indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), the UE does not expect to receive dedicated higher layer parameters transmitted from the UE in the said set of symbols in the time slot, nor does it expect to receive dedicated higher layer parameters received by the UE in the said set of symbols in the time slot.

[0123] For single carrier operation in unpaired spectrum, for a set of symbols of a timeslot indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon for reception of SS / PBCH blocks, the UE does not transmit PUSCH, PUCCH, PRACH in the timeslot if the transmission would overlap with any symbol in the set of symbols, and the UE does not transmit SRS in the set of symbols of the timeslot. When provided to the UE, the UE does not expect tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated to indicate a set of symbols of a timeslot as uplink.

[0124] 11.1.1 UE procedure for determining the timeslot format

[0125] This clause applies to a serving cell that is included in a set of serving cells configured to the UE, and the configuration is performed through slotFormatCombToAddModList and slotFormatCombToReleaseList, availableRB-SetsToAddModList and availableRB-SetsToRelease, switchTriggerToAddModList and switchTriggerToReleaseList or co-DurationsPerCellToAddModList and co-DurationsPerCellToReleaseList.

[0126] If the UE is configured by higher layers with the parameter SlotFormatIndicator, the UE provides the SFI-RNTI by sfi-RNTI and the payload size of DCI format 2_0 by dci-PayloadSize.

[0127] The UE is also provided with one or more serving cells configured with a search space set s and corresponding CORESETp for monitoring the L SFI CCE aggregation level for DCI format 2_0 PDCCH candidates. PDCCH candidates are CCE aggregation level L for search space set s in CORESETp SFI The first PDCCH candidates.

[0128] For each serving cell in the set of serving cells, the UE may be provided with:

[0129] - Serving cell identity, provided by servingCellId

[0130] - The position of the SFI index field in DCI format 2_0, provided by positionInDCI

[0131] - a set of slot format combinations, provided by slotFormatCombinations, wherein each slot format combination in the set of slot format combinations comprises

[0132] - one or more slot formats for said slot format combination indicated by the corresponding slotFormats, and

[0133] - A mapping of the slot format combination provided by slotFormats to the corresponding SFI Index field value in DCI format 2_0 provided by slotFormatCombinationId

[0134] The SFI Index field value in DCI format 2_0 indicates to the UE the slot format of each of the number of slots for each DL BWP or each UL BWP starting from the slot in which the UE detects DCI format 2_0. The number of slots is equal to or greater than the PDCCH monitoring periodicity for DCI format 2_0. The SFI Index field contains bits, where maxSFIindex is the maximum of the values ​​provided by the corresponding slotFormatCombinationId. The slot format is identified by the corresponding format index provided in Table 11.1.1-1, where 'D' represents downlink symbols, 'U' represents uplink symbols, and 'F' represents variable symbols.

[0135] For unpaired spectrum operation of the UE on the serving cell, the reference SCS configuration μ for each slot format in the slot format combination indicated by the SFI index field value in DCI format 2_0 is provided to the UE by subcarrierSpacing. SFI UE expects that for the reference SCS configuration μ SFI And for an active DL BWP or an active UL BWP with SCS configuration μ, there exists μ ≥ μ SFI Each slot format in the slot format combination indicated by the SFI index field value in DCI format 2_0 is applicable to the active DL BWP or the active UL BWP. consecutive time slots, where the first time slot is in the same SCS configuration as the reference SCS SFI The first time slot starts at the same time as the first time slot, and the reference SCS configuration μ SFI Each downlink symbol or variable symbol or uplink symbol corresponds to the SCS configuration μ consecutive downlink symbols or variable symbols or uplink symbols.

[0136] For a set of symbols of a time slot, the UE does not expect to detect a DCI format 2_0 having an SFI index field value indicating the set of symbols of the time slot as uplink, nor does it expect to detect a DCI format indicating to the UE to receive PDSCH or CSI-RS in the set of symbols of the time slot.

[0137] For a set of symbols in a time slot, the UE does not expect to detect a DCI format 2_0 having an SFI index field value indicating the set of symbols in the time slot as downlink, nor does it expect to detect a DCI format, a RAR UL grant, a fallbackRAR UL grant, or a successRAR indicating to the UE that PUSCH, PUCCH, PRACH, or SRS is transmitted in the set of symbols in the time slot.

[0138] For a set of symbols in a time slot indicated as downlink / uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, the UE is not expected to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the time slot as uplink / downlink or variable, respectively.

[0139] For a set of symbols in a time slot corresponding to a SS / PBCH block having a candidate SS / PBCH block index corresponding to the SS / PBCH block index indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon, as described in Section 4.1, the UE is not expected to detect DCI format 2_0 having an SFI index field value indicating the set of symbols of the time slot as uplink.

[0140] For a group of symbols corresponding to a valid PRACH opportunity in a time slot and N symbols before the valid PRACH opportunity gap symbols, as described in Section 8.1, the UE is not expected to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the timeslot as downlink.

[0141] For a set of symbols in a slot for CORESET of a Type0-PDCCH CSS set indicated to the UE by pdcch-ConfigSIB1 in the MIB, the UE is not expected to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the slot as uplink.

[0142] For a set of symbols in a slot that are indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the event that the UE detects a DCI format 2_0 that provides a format for the slot using a slot format value other than 255

[0143] - If one or more symbols in the set of symbols are symbols in a CORESET configured for the UE to monitor PDCCH, the UE receives PDCCH in the CORESET only if the SFI index field value in DCI format 2_0 indicates that the one or more symbols are downlink symbols

[0144] - If the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as variable, and the UE detects a DCI format that indicates to the UE to receive PDSCH or CSI-RS in the set of symbols of the time slot, then the UE receives PDSCH or CSI-RS in the set of symbols of the time slot

[0145] - If the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as variable, and the UE detects a DCI format, RAR UL grant, fallback RAR UL grant, or success RAR that indicates to the UE that PUSCH, PUCCH, PRACH, or SRS is transmitted in the set of symbols of the time slot, then the UE transmits PUSCH, PUCCH, PRACH, or SRS in the set of symbols of the time slot

[0146] - If the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as variable, and the UE does not detect a DCI format that indicates reception of PDSCH or CSI-RS to the UE, or the UE does not detect a DCI format that indicates transmission of PUSCH, PUCCH, PRACH or SRS to the UE in the set of symbols of the time slot, RAR UL, fallbackRAR UL grant or successRAR grant, then the UE does not transmit or receive in the set of symbols of the time slot

[0147] - If the UE is configured by higher layers to receive PDSCH and / or CSI-RS in the set of symbols of the time slot, the UE receives PDSCH and / or CSI-RS in the set of symbols of the time slot only if the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as downlink, and if applicable, the set of symbols is within the remaining channel occupancy duration

[0148] - If the UE is configured by a higher layer to receive DL PRS in the set of symbols of the time slot, the UE receives DL PRS in the set of symbols of the time slot only if the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as downlink or variable

[0149] - If the UE is configured by higher layers to transmit PUCCH or PUSCH or PRACH in the set of symbols in the time slot, the UE transmits PUCCH or PUSCH or PRACH in the time slot only if the SFI index field value in DCI format 2_0 indicates the set of symbols in the time slot as uplink

[0150] - If the UE is configured by a higher layer to transmit SRS in the set of symbols of the time slot, the UE transmits SRS only in the subset of symbols indicated as uplink symbols by the SFI index field value in DCI format 2_0 in the set of symbols of the time slot

[0151] - The UE does not expect to detect an SFI index field value in DCI format 2_0 indicating the set of symbols in the time slot as downlink, nor does it expect to detect a DCI format, RAR UL grant, fallbackRAR UL grant, or successRAR that indicates to the UE that SRS, PUSCH, PUCCH, or PRACH is transmitted in one or more symbols in the set of symbols in the time slot

[0152] - If the set of symbols of a slot contains any repeated symbols corresponding to a PUSCH transmission activated by a UL Type 2 grant PDCCH, then the UE is not expected to detect in DCI format 2_0 an indication of the set of symbols in the slot as downlink or a variable SFI index field value as described in section 10.2

[0153] - The UE does not expect to detect an SFI index field value indicating the set of symbols in the time slot as uplink in DCI format 2_0, nor does it expect to detect a DCI format indicating to the UE that PDSCH or CSI-RS is received in one or more symbols in the set of symbols in the time slot

[0154] If the UE is configured by a higher layer to receive CSI-RS or PDSCH in a group of symbols in a time slot, and the UE detects a DCI format 2_0 having a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is uplink or variable, or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE cancels receiving CSI-RS in the group of symbols in the time slot or cancels receiving PDSCH in the time slot.

[0155] For operation with shared spectrum channel access, if the UE is configured by higher layers to receive CSI-RS and the UE is provided with CO-DurationsPerCell for a set of symbols in a timeslot indicated as downlink or variable by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided, the UE cancels receiving CSI-RS in a set of symbols in a timeslot that are not within the remaining channel occupancy duration

[0156] If the UE is configured by a higher layer to receive DL PRS in a group of symbols in a time slot, and the UE detects a DCI format 2_0 having a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is uplink, or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE cancels receiving DL PRS in the group of symbols in the time slot.

[0157] If the UE does not detect an SFI index field value in DCI format 2_0 that indicates the set of symbols of the time slot as variable or uplink and the UE does not detect a DCI format that indicates to the UE that SRS, PUSCH, PUCCH or PRACH is transmitted in the set of symbols, then the UE assumes that the variable symbols configured by the UE for PDCCH monitoring in CORESET are downlink symbols.

[0158] For a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE does not detect DCI format 2_0 providing the time slot format of the time slot - if the UE receives a corresponding indication of the DCI format, then the UE receives PDSCH or CSI-RS in a set of symbols in the time slot.

[0159] If the UE receives a corresponding indication of a DCI format, a RAR UL grant, a fallbackRAR UL grant or a successRAR, the UE transmits PUSCH, PUCCH, PRACH or SRS in the set of symbols of the timeslot

[0160] -UE receives PDCCH as described in Section 10.1

[0161] - If the UE is configured by higher layers to receive PDSCH in the set of symbols in the time slot, then the UE does not receive PDSCH in the set of symbols in the time slot

[0162] -If the UE is configured by higher layers to receive CSI-RS in the set of symbols of the time slot, then the UE does not receive CSI-RS in the set of symbols of the time slot unless CO-DurationsPerCell is provided to the UE and the set of symbols of the time slot is within the remaining channel occupancy duration.

[0163] - If the UE is configured by higher layers to receive DL PRS in the set of symbols of the time slot, then the UE receives DL PRS

[0164] - If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in the set of symbols of the timeslot and the UE is provided with enableConfiguredUL, the UE may transmit SRS or PUCCH or PUSCH or PRACH, respectively.

[0165] For unpaired spectrum operation of a UE on a cell in a frequency band in FR1, and when scheduling restrictions due to RRM measurements [10, TS 38.133] do not apply, if the UE detects a DCI format that indicates to the UE that transmissions are to be made in a group of symbols, then the UE does not need to perform RRM measurements based on SS / PBCH block or CSI-RS reception on different cells in the frequency band when the SS / PBCH block or CSI-RS reception includes at least one symbol in the group of symbols [10, TS 38.133].

[0166] *****************END OF QUOTE*****************

[0167] Duplex enhancements have been discussed in 3GPP to enable more frequent UL in order to improve latency and UL coverage. For unpaired spectrum (e.g., TDD), UL transmissions and DL transmissions may occur for the same symbol. More details on duplexing can be found below in the quote from [3] RP-212707, "Draft SID for Evolution of NR Duplex Operation":

[0168] ******************Quote starts*****************

[0169] In this study, the following are assumed:

[0170] ●Duplex enhancement on the gNB side

[0171] ●Half-duplex operation on the UE side

[0172] ●No restrictions on frequency range

[0173] The detailed objectives are as follows:

[0174] ● Identify applicable and relevant deployment scenarios and use cases (RAN1).

[0175] ● Development and evaluation methods for duplex enhancement (RAN1).

[0176] ●Study on sub-band non-overlapping full-duplex and potential enhancements for dynamic / variable TDD.

[0177] *****************END OF QUOTE*****************

[0178] Problem and Solution:

[0179] Enhancements to the duplex scheme may have an impact on the way a user equipment (UE) handles downlink (DL) reception or uplink (UL) transmission. For example, for a regular DL symbol (e.g., without duplex enhancement), the UE will not perform UL transmission on such symbol, such as canceling a configured UL transmission on the symbol, or not expecting a UL transmission scheduled by downlink control information (DCI) on the symbol (e.g., the network (NW) will not perform such scheduling and / or the UE will consider such scheduling as an error case). Similar restrictions on DL reception may apply to regular UL symbols. The indicated transmission direction applies to all / the entire frequency resources of the bandwidth part / serving cell. However, when more than one transmission direction may be supported by a symbol under duplex enhancement, such as for both DL and UL, such restrictions may no longer be valid. For example, the UE may be able to perform UL transmission on a symbol indicated as DL. The three types of transmission directions (DL, UL, variable) currently available may be subject to some restrictions to show appropriate / desired UE behavior.

[0180]

[0066] Use of "(s)" with a word, term or phrase herein means that "one or more" of the words, terms or phrases are encompassed and possible for various embodiments and aspects of the invention.

[0181] The concept of the present invention is to introduce or define a new type of transmission direction. A new transmission direction other than DL, UL, and variable. The new transmission direction may be "N", i.e., "middle", "B", i.e., "bidirectional", "bypass", "X", i.e., "special", "T", i.e., "transparent", "free", "full duplex", and "variable duplex". The new transmission direction may be indicated by all or some of the signals indicating a slot form indicator (SFI), such as one or more of a radio resource control (RRC) signal, a common RRC signal, a dedicated RRC signal, a DCI, a DCI format 2_0, a DCI scheduled transmission / reception, and an RRC signal configuring transmission / reception. The UE processes transmission / reception on symbols indicated as the new transmission direction, which is different from processing transmission / reception on symbols indicated as DL / UL / variable. Due to the slot format of the symbol indicated as the new transmission direction, the UE does not cancel reception. Due to the overlap with the UL signal of the symbol indicated as the new transmission direction, the UE does not cancel reception. For example, the UL signal is a (configured) preamble. The UE does not cancel transmission due to the slot format of the symbol indicated as the new transmission direction. The UE does not cancel transmission due to overlap with a DL signal of the symbol indicated as the new transmission direction. For example, the DL signal may be a Synchronization Signal Block (SSB) or Remaining Minimum System Information (RMSI) or System Information Block #1 (SIB1) or a search space associated with Control Resource Set (CORESET) 0. Both UL transmission and DL reception are allowed for the symbol indicated as the new transmission direction. UL transmission and DL reception are performed (simultaneously) on the symbol indicated as the new transmission direction. The new transmission direction may cover DL symbols. The new transmission direction may cover UL symbols. The new transmission direction may cover variable symbols. The new transmission direction may not cover DL symbols. The new transmission direction may not cover UL symbols. The new transmission direction may not cover variable symbols. DL symbols may cover the new transmission direction. UL symbols may cover the new transmission direction. Variable symbols may cover the new transmission direction. Variable symbols may cover the new transmission direction. UL symbols can cover new transmission directions. Variable symbols can cover new transmission directions.

[0182] The UE performs one or more of the following actions for the symbol indicating the new transmission direction (denoted as the middle symbol below):

[0183] - If the UE additionally provides tdd-UL-DL-ConfigurationDedicated, the parameter tdd-UL-DL-ConfigurationDedicated covers the variable symbols and / or mid-symbols per slot over a number of slots as provided by tdd-UL-DL-ConfigurationCommon.

[0184] - For each slot with the corresponding index provided by slotIndex, the UE applies the format provided by the corresponding symbols. The UE receives a tdd-UL-DL-ConfigurationDedicated indicated as a middle symbol indicating a tdd-UL-DL-ConfigurationCommon as a downlink or uplink symbol, respectively.

[0185] - The number of downlink symbols, uplink symbols, variable symbols and intermediate symbols in the slot configuration period and each slot of the slot configuration period is determined according to tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated and is common to each configured BWP.

[0186] -If the UE is not configured to monitor the Physical Downlink Control Channel (PDCCH) for DCI format 2_0, then for a group of symbols of a time slot indicated as the middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, if the UE receives the corresponding indication of the DCI format, the UE receives the Physical Downlink Shared Channel (PDSCH) or the Channel State Information Reference Signal (CSI-RS) in the group of symbols of the time slot.

[0187] -If the UE is not configured to monitor the PDCCH for DCI format 2_0, then for a group of symbols of a time slot indicated as the middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, when the UE receives a corresponding indication of the DCI format, a random access response (RAR) UL grant, a fallbackRAR UL grant or a successRAR, the UE transmits a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), a Physical Random Access Channel (PRACH) or a Sounding Reference Signal (SRS) in the group of symbols of the time slot.

[0188] -For single carrier operation in unpaired spectrum, if the UE is configured by a higher layer to receive PDCCH or PDSCH or CSI-RS or DL ​​Positioning Reference Signal (PRS) in a group of symbols in a time slot, then the UE receives PDCCH, PDSCH, CSI-RS or DL ​​PRS if it detects that the UE is indicated to transmit PUSCH, PUCCH, PRACH or SRS in at least one symbol of the group of symbols in the time slot and the group of symbols is indicated as an intermediate DCI format; otherwise, the UE does not receive PDCCH or PDSCH or CSI-RS or DL ​​PRS in the group of symbols in the time slot.

[0189] - For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a time slot and the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subset of symbols in the group of symbols, then: if the UE does not indicate the capability of [partialCancellation], then the UE performs transmission of PUCCH or PUSCH or PRACH in the group of symbols if the group of symbols is indicated as intermediate; otherwise, the UE cancels the actual repetition of PUCCH or PUSCH or PRACH transmission in the group of symbols determined according to Section 9 and Section 9.2.5 or Section 6.1 of [6, TS38.214] [6, TS38.214] or PRACH in the group of symbols.

[0190] - For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a time slot, and the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subset of symbols in the group of symbols, then: if the UE indicates the capability of [partialCancellation] and indicates the symbol as middle, then the UE performs transmission of PUCCH or PUSCH or PRACH in the symbols in the group of symbols.

[0191] -For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a time slot and the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subset of symbols in the group of symbols that is indicated as in the middle, then: the UE performs transmission of SRS in symbols from the subset of symbols.

[0192] -For a group of symbols in a time slot indicated to the UE as uplink by tdd-UL-DL-ConfigurationCommon and the group of symbols in the time slot indicated to the UE as middle by another signal indicating SFI (e.g., tdd-UL-DL-ConfigurationDedicated), the UE receives the PDCCH, PDSCH or CSI-RS when the PDCCH, PDSCH or CSI-RS overlaps (even partially) with the group of symbols in the time slot.

[0193] -For a group of symbols in a time slot indicated to the UE as uplink by tdd-UL-DL-ConfigurationCommon and the group of symbols in the time slot indicated to the UE as intermediate by another signal indicating SFI, the UE receives the PDCCH, PDSCH or CSI-RS when the PDCCH, PDSCH or CSI-RS overlaps (even partially) with the group of symbols in the time slot.

[0194] -For a group of symbols in a time slot indicated to the UE as uplink by tdd-UL-DL-ConfigurationDedicated and the group of symbols in the time slot indicated to the UE as middle by another signal indicating SFI (e.g., DCI format 2_0), when the PDCCH, PDSCH or CSI-RS overlaps (even partially) with the group of symbols in the time slot, the UE receives the PDCCH, PDSCH or CSI-RS.

[0195] -For a group of symbols in a time slot that is indicated to the UE as uplink by tdd-UL-DL-ConfigurationDedicated and the group of symbols of a middle time slot that is not indicated to the UE by another signal indicating SFI (e.g., DCI format 2_0), when the PDCCH, PDSCH or CSI-RS overlaps (even partially) with the group of symbols of the time slot, the UE does not receive the PDCCH, PDSCH or CSI-RS.

[0196] -For a group of symbols in a time slot indicated to the UE as uplink by tdd-UL-DL-ConfigurationCommon and the group of symbols in the middle indicated to the UE by another signal indicating SFI in the time slot (for example, tdd-UL-DL-ConfigurationDedicated or DCI format 2_0), when the PDCCH, PDSCH or CSI-RS overlaps (even partially) with the group of symbols of the time slot, the UE receives the PDCCH, PDSCH or CSI-RS.

[0197] -For a group of symbols in a time slot that are indicated to the UE as uplink by tdd-UL-DL-ConfigurationComm and the group of symbols of a middle time slot that are not indicated to the UE by another signal indicating SFI (e.g., tdd-UL-DL-ConfigurationDedicated or DCI format 2_0), if the UE does not have a measurement gap, the UE does not receive DL PRS in the group of symbols in the time slot.

[0198] -For a group of symbols in a time slot indicated to the UE as uplink by tdd-UL-DL-ConfigurationComm and a group of symbols in a time slot indicated to the UE as middle by another signal indicating SFI (e.g., tdd-UL-DL-ConfigurationDedicated or DCI format 2_0), if the UE does not have a measurement gap, the UE receives DL PRS in the group of symbols in the time slot.

[0199] -For a group of symbols in a time slot that are indicated to the UE as uplink by tdd-UL-DL-ConfigurationDedicated and a group of symbols in a time slot that are not indicated to the UE as intermediate by another signal indicating SFI (e.g., DCI format 2_0), if the UE does not have a measurement gap, the UE does not receive DL PRS in the group of symbols in the time slot.

[0200] -For a group of symbols in a time slot indicated to the UE as uplink by tdd-UL-DL-ConfigurationDedicated and a group of symbols in a time slot indicated to the UE as middle by another signal indicating SFI (e.g., DCI format 2_0), if the UE does not have a measurement gap, the UE receives DL PRS in the group of symbols in the time slot.

[0201] -For a group of symbols in a time slot indicated to the UE as downlink by tdd-UL-DL-ConfigurationCommon and a group of symbols in a time slot that are not indicated to the UE as intermediate by another signal indicating SFI, when PUSCH, PUCCH, PRACH or SRS overlaps (even partially) with the group of symbols in the time slot, the UE does not transmit PUSCH, PUCCH, PRACH or SRS.

[0202] -For a group of symbols in a time slot indicated to the UE as downlink by tdd-UL-DL-ConfigurationCommon and the group of symbols in the time slot indicated to the UE as intermediate by another signal indicating SFI, the UE transmits PUSCH, PUCCH, PRACH or SRS when PUSCH, PUCCH, PRACH or SRS overlaps (even partially) with the group of symbols in the time slot.

[0203] -For a group of symbols in a time slot indicated to the UE as downlink by tdd-UL-DL-ConfigurationDedicated and the group of symbols in the time slot that are not indicated to the UE as intermediate by another signal indicating SFI, when PUSCH, PUCCH, PRACH or SRS overlaps (even partially) with the group of symbols in the time slot, the UE does not transmit PUSCH, PUCCH, PRACH or SRS.

[0204] -For a group of symbols in a time slot indicated to the UE as downlink by tdd-UL-DL-ConfigurationDedicated and the group of symbols in the time slot indicated to the UE as intermediate by another signal indicating SFI, the UE transmits PUSCH, PUCCH, PRACH or SRS when PUSCH, PUCCH, PRACH or SRS overlaps (even partially) with the group of symbols in the time slot.

[0205] -For a set of symbols in a time slot indicated to the UE as being in the middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), the UE receives dedicated higher layer parameters transmitted from the UE in the said set of symbols in the time slot, and receives dedicated higher layer parameters received by the UE in the said set of symbols in the time slot.

[0206] - For single carrier operation in unpaired spectrum, for a set of symbols in a slot indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon for reception of a Synchronization Signal (SS) block / Physical Broadcast Channel (PBCH) block and the set of symbols in the slot not indicated to the UE as being in the middle, the UE does not transmit PUSCH, PUCCH, PRACH in the slot if the transmission would overlap with any symbol in the set of symbols, and the UE does not transmit SRS in the set of symbols in the slot. When provided to the UE, the UE does not expect tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated to indicate a set of symbols of the slot as uplink.

[0207] - For single carrier operation in unpaired spectrum, for a set of symbols in a slot indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon for reception of an SS / PBCH block and the set of symbols in a slot indicated to the UE as middle, the UE transmits PUSCH, PUCCH, PRACH in the slot if the transmission would overlap with any symbol in the set of symbols, and / or the UE transmits SRS in the set of symbols in the slot. When provided to the UE, the set of symbols in the slot is indicated as uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.

[0208] - For a group of symbols in a slot corresponding to a valid PRACH opportunity and N symbols before the valid PRACH opportunity gap The UE does not receive PDCCH, PDSCH or CSI-RS in a time slot if reception would overlap with any symbol in the set of symbols. The UE does not expect tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated to indicate a set of symbols in a time slot as downlink.

[0209] - For a group of symbols in a slot corresponding to a valid PRACH opportunity and N symbols before the valid PRACH opportunity gap The UE receives the PDCCH, PDSCH or CSI-RS in the time slot if the reception would overlap with any symbol in the set of symbols. tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated indicates a set of symbols of the time slot as downlink.

[0210] -For a set of symbols indicated to the UE by the CORESET of the Type0-PDCCH common search space (CSS) set in the pdcch-ConfigSIB1 in the master information block (MIB) in the time slot and the set of symbols in the time slot that are not indicated to the UE as middle, the UE does not expect tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated to indicate the set of symbols as uplink.

[0211] -For a set of symbols in a time slot indicated to the UE by the CORESET of the Type0-PDCCH CSS set in the pdcch-ConfigSIB1 in the MIB and the set of symbols indicated to the UE as a middle time slot, the UE indicates the set of symbols as uplink through tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.

[0212] -If the UE is scheduled by the DCI format to receive PDSCH on multiple time slots, and if tdd-UL-DL-ConfigurationCommon indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to receive PDSCH in the time slot is an uplink symbol, and the time slot is not indicated to the UE by another signal indicating SFI as at least one symbol in a group of symbols in the middle, then the UE does not receive PDSCH in that time slot.

[0213] -If the UE is scheduled by the DCI format to receive PDSCH on multiple time slots, and if tdd-UL-DL-ConfigurationCommon indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to receive PDSCH in the time slot is an uplink symbol, and the time slot is indicated to the UE by another signal indicating SFI as at least one symbol in the middle of the group of symbols, then the UE receives PDSCH in the time slot.

[0214] -If the UE is scheduled by the DCI format to receive PDSCH on multiple time slots, and if tdd-UL-DL-ConfigurationDedicated indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to receive PDSCH in the time slot is an uplink symbol, and the time slot is not indicated to the UE by another signal indicating SFI as at least one symbol in a group of symbols in the middle, then the UE does not receive PDSCH in that time slot.

[0215] -If the UE is scheduled by the DCI format to receive PDSCH on multiple time slots, and if tdd-UL-DL-ConfigurationDedicated indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to receive PDSCH in the time slot is an uplink symbol, and the time slot is indicated to the UE by another signal indicating SFI as at least one symbol in the middle of the group of symbols, then the UE receives PDSCH in the time slot.

[0216] -If the UE is scheduled by the DCI format to transmit PUSCH on multiple time slots, and if tdd-UL-DL-ConfigurationCommon indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to transmit PUSCH in the time slot is a downlink symbol, and at least one symbol in a group of symbols in the middle of the time slot is not indicated to the UE by another signal indicating SFI, then the UE does not transmit PUSCH in that time slot.

[0217] -If the UE is scheduled by the DCI format to transmit PUSCH on multiple time slots, and if tdd-UL-DL-ConfigurationCommon indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to transmit PUSCH in the time slot is a downlink symbol, and the time slot is indicated to the UE by another signal indicating the SFI as at least one symbol in a group of symbols in the middle, then the UE transmits PUSCH in the time slot.

[0218] -If the UE is scheduled by the DCI format to transmit PUSCH on multiple time slots, and if tdd-UL-DL-ConfigurationDedicated indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to transmit PUSCH in the time slot is a downlink symbol, and the time slot is not indicated to the UE by another signal indicating SFI as at least one symbol in a group of symbols in the middle, then the UE does not transmit PUSCH in that time slot.

[0219] -If the UE is scheduled by the DCI format to transmit PUSCH on multiple time slots, and if tdd-UL-DL-ConfigurationDedicated indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to transmit PUSCH in the time slot is a downlink symbol, and the time slot is indicated to the UE by another signal indicating the SFI as at least one symbol in a group of symbols in the middle, then the UE transmits PUSCH in the time slot.

[0220] -For a group of symbols of a time slot, the UE does not expect to detect a DCI format 2_0 having an SFI index field value indicating the group of symbols of the time slot as uplink, nor does it expect to detect a DCI format indicating to the UE that a PDSCH or CSI-RS is received in the group of symbols of the time slot, unless another signal indicating the SFI indicates to the UE that the group of symbols of the time slot is intermediate.

[0221] -For a group of symbols in a time slot, the UE does not expect to detect a DCI format 2_0 with an SFI index field value indicating a group of symbols in the time slot as downlink, nor does it expect to detect a DCI format indicating to the UE that PUSCH, PUCCH, PRACH or SRS is transmitted in the group of symbols in the time slot, a RAR UL grant, a fallbackRAR UL grant or a successRAR, unless another signal indicating the SFI indicates to the UE a group of symbols in the time slot as intermediate.

[0222] -For a group of symbols in a time slot indicated as downlink / uplink by tdd-UL-DL-ConfigurationCommon, tdd-UL-DL-ConfigurationDedicated, the UE does not expect to detect DCI format 2_0 having an SFI-index field value indicating a group of symbols in the time slot as uplink / downlink, respectively, or a variable, unless another signal indicating the SFI indicates the group of symbols in the time slot as intermediate to the UE.

[0223] - For a group of symbols in a slot indicated as downlink / uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, the UE detects DCI format 2_0 with an SFI index field value indicating a group of symbols of the slot as middle.

[0224] -For a set of symbols in a time slot corresponding to a SS / PBCH block with a candidate SS / PBCH block index corresponding to the SS / PBCH block index indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon, as described in Section 4.1, the UE is not expected to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the time slot as uplink unless another signal indicating the SFI indicates the set of symbols of the time slot to the UE as intermediate.

[0225] - For a group of symbols in a slot corresponding to a valid PRACH opportunity and N symbols before the valid PRACH opportunity gapsymbols, as described in Section 8.1, the UE does not expect to detect DCI format 2_0 with an SFI index field value indicating a set of symbols of the time slot as downlink unless another signal indicating the SFI indicates the set of symbols of the time slot to the UE as intermediate.

[0226] -For a set of symbols in a time slot indicated to the UE by the CORESET of the Type0-PDCCHCSS set in the pdcch-ConfigSIB1 in the MIB, the UE does not expect to detect a DCI format 2_0 having an SFI index field value indicating the set of symbols of the time slot as uplink unless another signal indicating the SFI indicates the set of symbols of the time slot to the UE as intermediate.

[0227] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and when the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if one or more symbols of the set of symbols are symbols in the CORESET configured by the UE for PDCCH monitoring, then the UE receives the PDCCH in the CORESET only if the SFI index field value in the DCI format 2_0 indicates that the one or more symbols are downlink symbols, unless another signal indicating the SFI indicates the set of symbols of the time slot to the UE as intermediate.

[0228] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and when the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if one or more symbols of the set of symbols are symbols in the CORESET configured by the UE for PDCCH monitoring, then the UE receives the PDCCH in the CORESET if the SFI index field value in the DCI format 2_0 indicates that the one or more symbols are uplink and / or variable and / or intermediate.

[0229] -For a set of symbols in a time slot that is indicated to the UE as DL or UL or variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the SFI index field value in DCI format 2_0 indicates a set of symbols of the time slot as middle and the UE detects a DCI format that indicates to the UE to receive PDSCH or CSI-RS in the said set of symbols of the time slot, then the UE receives PDSCH or CSI-RS in the said set of symbols of the time slot.

[0230] -For a set of symbols in a time slot that is indicated to the UE as DL or UL or variable or middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided) (or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE detects a DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the SFI index field value in the DCI format 2_0 indicates a set of symbols of the time slot as middle and the UE detects a DCI format, RAR UL grant, fallbackRAR UL grant or successRAR that indicates to the UE that PUSCH, PUCCH, PRACH or SRS is transmitted in the said set of symbols of the time slot, then the UE transmits PUSCH, PUCCH, PRACH or SRS in the said set of symbols of the time slot.

[0231] -For a group of symbols in a time slot that is indicated to the UE as DL or UL or variable or intermediate by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the SFI index field value in DCI format 2_0 indicates a group of symbols of the time slot as intermediate and the UE detects a DCI format that indicates reception of PDSCH or CSI-RS to the UE, and the UE detects a DCI format that indicates transmission of PUSCH, PUCCH, PRACH or SRS, RAR UL, fallbackRAR UL grant or successRAR grant to the UE in the said group of symbols of the time slot, then the UE transmits or receives (simultaneously) in the said group of symbols of the time slot.

[0232] -For a group of symbols in a time slot that is indicated to the UE as DL or UL or variable or intermediate by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by a higher layer to receive DL PRS in a group of symbols in the time slot, then the UE receives the DL PRS in the group of symbols in the time slot when the SFI index field value in DCI format 2_0 indicates the group of symbols of the time slot as downlink or variable or intermediate.

[0233] -For a set of symbols in a time slot that is indicated to the UE as DL or UL or variable or intermediate by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in case the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to transmit PUCCH or PUSCH or PRACH in a set of symbols in the time slot, then the UE transmits PUCCH or PUSCH or PRACH in the time slot only when the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as uplink or intermediate.

[0234] -For a group of symbols in a time slot that is indicated to the UE as DL or UL or variable or intermediate by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided) or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to transmit SRS in a group of symbols in a time slot, then the UE transmits SRS only in symbol words in the group of symbols in the time slot that are indicated as uplink or intermediate symbols by the SFI index field value in DCI format 2_0.

[0235] -For a set of symbols in a time slot that is indicated to the UE as DL or UL or variable or intermediate by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: the UE detects in DCI format 2_0 an SFI index field value that indicates a set of symbols of the time slot as downlink, and also detects a DCI format that indicates to the UE that SRS, PUSCH, PUCCH or PRACH is transmitted in one or more symbols of the set of symbols of the time slot, RAR UL grant, fallbackRAR UL grant or successRAR.

[0236] -For a set of symbols in a time slot that is indicated to the UE as DL or UL or variable or intermediate by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects a DCI format 2_0 formatted for the time slot using a time slot format value other than 255: if the set of symbols of the time slot contains any repeated symbols corresponding to PUSCH transmissions activated by a UL type 2 grant PDCCH, the UE detects in DCI format 2_0 an SFI index field value indicating the set of symbols of the time slot as downlink or variable or intermediate.

[0237] -For a set of symbols in a time slot that is indicated to the UE as DL or UL or variable or intermediate by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: the UE detects an SFI index field value in DCI format 2_0 that indicates a set of symbols of the time slot as uplink or intermediate, and also detects a DCI format that indicates to the UE that PDSCH or CSI-RS is received in one or more symbols of the set of symbols in the time slot.

[0238] -If the UE is configured by higher layers to receive CSI-RS or PDSCH in a group of symbols in a time slot, and the UE detects a DCI format 2_0 with a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is uplink or variable, or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE cancels receiving CSI-RS in the group of symbols in the time slot or cancels receiving PDSCH in the time slot unless the at least one symbol is indicated as middle.

[0239] -If the UE is configured by higher layers to receive CSI-RS or PDSCH in a group of symbols in a time slot, and the UE detects a DCI format 2_0 having a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is intermediate, and / or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE performs reception of CSI-RS in the group of symbols in the time slot or cancels reception of PDSCH in the time slot.

[0240] -If the UE is configured by higher layers to receive DL PRS in a group of symbols in a time slot, and the UE detects a DCI format 2_0 having a slot format value indicating a slot format other than 255, wherein a subgroup of symbols in the group of symbols is uplink, or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE cancels receiving DL PRS in the group of symbols in the time slot unless the at least one symbol is indicated as middle.

[0241] -If the UE is configured by a higher layer to receive DL PRS in a group of symbols in a time slot, and the UE detects a DCI format 2_0 having a slot format value indicating a slot format other than 255, wherein a subgroup of symbols in the group of symbols is intermediate, or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE performs DL PRS reception in the group of symbols in the time slot.

[0242] - If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a slot, and the UE detects a DCI format 2_0 with a slot format value other than 255 indicating a slot format, wherein a subgroup of symbols in the group of symbols is downlink or variable, or the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subgroup of symbols in a group of symbols, then: the UE does not expect to cancel transmission of SRS in symbols of the subgroup of symbols that occur within T_(proc, 2) relative to the last symbol of the CORESET in which the UE detected the DCI format, unless the at least one symbol is indicated as middle. Unless the at least one symbol is indicated as middle, the UE cancels transmission of SRS in the remaining symbols in the symbol subgroup.

[0243] -If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a time slot, and the UE detects DCI format 2_0 with a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is intermediate, or the UE detects a DCI format indicating to the UE to receive CSI-RS or PDSCH in a subgroup of symbols in the group of symbols, then: the UE performs SRS transmission in the symbols in the subgroup of symbols.

[0244] -If the UE detects in DCI format 2_0 an SFI index field value indicating a set of symbols of a time slot as variable or uplink and / or the UE detects a DCI format indicating to the UE that SRS, PUSCH, PUCCH or PRACH is transmitted in the set of symbols, the UE assumes that the middle symbols in the CORESET configured by the UE for PDCCH monitoring are downlink symbols.

[0245] -For a group of symbols in the middle of a time slot indicated by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and the UE does not detect DCI format 2_0 providing the time slot format of the time slot: if the UE receives the corresponding indication of the DCI format, then the UE receives PDSCH or CSI-RS in the group of symbols of the time slot.

[0246] -For a group of symbols in a time slot that is indicated as being in the middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE receives a corresponding indication of a DCI format, a RAR UL grant, a fallbackRAR UL grant or a successRAR, the UE transmits PUSCH, PUCCH, PRACH or SRS in the group of symbols in the time slot.

[0247] -For a set of symbols in a time slot indicated as being in the middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: the UE receives the PDCCH as described in section 10.1.

[0248] -For a group of symbols in a time slot indicated as being in the middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to receive PDSCH in a group of symbols in the time slot, then the UE receives PDSCH in a group of symbols in the time slot.

[0249] - for a group of symbols in a timeslot indicated as being in the middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE does not detect DCI format 2_0 providing the timeslot format for said timeslot: if the UE is configured by higher layers to receive DL PRS in a group of symbols in the timeslot, then the UE receives the DL PRS

[0250] -For a group of symbols in a time slot indicated as being in the middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in the time slot and the UE is not provided with enableConfiguredUL, then: the UE performs SRS transmission in a group of symbols.

[0251] -For a group of symbols in a time slot indicated as being in the middle by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in the time slot and the UE is provided with enableConfiguredUL, then the UE may transmit SRS or PUCCH or PUSCH or PRACH, respectively.

[0252] In one embodiment, the UE receives time slot format information from the base station, wherein the time slot format information corresponds to four transmission directions or four symbol types. A first transmission direction / symbol type is DL. A second transmission direction / symbol type is UL. A third transmission direction / symbol type is variable. A fourth transmission direction / symbol type is "N", i.e., "middle", "B", i.e., "bidirectional", "detour", "X", i.e., "special", "T", i.e., one of "transparent", "free", "full duplex", and "variable duplex". The UE is allowed to perform transmission and reception on symbols indicated as the fourth transmission direction / symbol type. The UE performs transmission and reception (simultaneously) on symbols indicated as the fourth transmission direction / symbol type. The UE performs different processing on transmission / reception on symbols indicated as the fourth transmission direction / symbol type from that on transmission / reception on symbols indicated as variable. The UE performs different processing on transmission / reception on symbols indicated as the fourth transmission direction / symbol type from that on transmission / reception on symbols indicated as DL. The UE performs different processing on transmission / reception on symbols indicated as the fourth transmission direction / symbol type from that on transmission / reception on symbols indicated as UL. The fourth symbol type may cover three symbol types, such as any one of DL, UL, and variable. The fourth symbol type indicated by DCI format 2_0 may cover three symbol types configured by the RRC signal, such as any one of DL, UL, and variable. DL, UL, or variable cannot cover the fourth symbol type. DL, UL, or variable indicated by DCI format 2_0 cannot cover the fourth symbol type indicated by RRC.

[0253] In another embodiment, the base station transmits time slot format information to the UE, wherein the time slot format information corresponds to four transmission directions or four symbol types. The first transmission direction / symbol type is DL. The second transmission direction / symbol type is UL. The third transmission direction / symbol type is variable. The fourth transmission direction / symbol type is "N", i.e., "middle", "B", i.e., "bidirectional", "detour", "X", i.e., "special", "T", i.e., one of "transparent", "free", "full duplex", and "variable duplex". The base station is allowed to perform transmission and reception on symbols indicated as the fourth transmission direction / symbol type. The base station performs transmission and reception (simultaneously) on symbols indicated as the fourth transmission direction / symbol type. The base station performs different processing on transmission / reception on symbols indicated as the fourth transmission direction / symbol type from that on transmission / reception on symbols indicated as variable. The base station performs different processing on transmission / reception on symbols indicated as the fourth transmission direction / symbol type from that on transmission / reception on symbols indicated as DL. The base station performs different processing on transmission / reception on symbols indicated as the fourth transmission direction / symbol type from that on transmission / reception on symbols indicated as UL. The fourth symbol type may cover three symbol types, such as any one of DL, UL, and variable. The fourth symbol type indicated by DCI format 2_0 may cover three symbol types configured by the RRC signal, such as any one of DL, UL, and variable. DL, UL, or variable cannot cover the fourth symbol type. DL, UL, or variable indicated by DCI format 2_0 cannot cover the fourth symbol type indicated by RRC.

[0254] The conflict handling rule (or first / old conflict handling rule, first action related to conflict handling) may be one or more of the following (e.g., the following refers to the behavior for "applying the conflict handling rule" or "the conflict rule is enabled" as described above / throughout the present invention herein):

[0255] - If the UE additionally provides tdd-UL-DL-ConfigurationDedicated, then tdd-UL-DL-ConfigurationDedicated covers only the variable symbols per slot over multiple slots as provided by tdd-UL-DL-ConfigurationCommon.

[0256] - For each slot with the corresponding index provided by slotIndex, the UE applies the format provided by the corresponding symbols. The UE does not expect tdd-UL-DL-ConfigurationDedicated indication as uplink or downlink symbols, nor does it expect tdd-UL-DL-ConfigurationCommon indication as downlink or uplink symbols.

[0257] - The number of downlink symbols, uplink symbols and variable symbols in the slot configuration period and each slot of the slot configuration period is determined according to tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated and is common to each configured BWP.

[0258] - The UE considers the symbols indicated as downlink in the time slot by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated as available for reception, and considers the symbols indicated as uplink in the time slot by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated as available for transmission.

[0259] -If the UE is not configured to listen to the PDCCH for DCI format 2_0, then for a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, the UE receives PDSCH or CSI-RS in a set of symbols in the time slot if the UE receives a corresponding indication of the DCI format.

[0260] -If the UE is not configured to listen to PDCCH for DCI format 2_0, then for a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, the UE transmits PUSCH, PUCCH, PRACH or SRS in a set of symbols in the time slot if the UE receives a corresponding indication of DCI format, RAR UL grant, fallbackRAR UL grant or successRAR.

[0261] -For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to receive PDCCH or PDSCH or CSI-RS or DL ​​PRS in a group of symbols in a time slot, then the UE receives PDCCH, PDSCH, CSI-RS or DL ​​PRS if the UE does not detect a DCI format indicating to the UE that PUSCH, PUCCH, PRACH or SRS is transmitted in at least one symbol of the group of symbols in the time slot; otherwise, the UE does not receive PDCCH or PDSCH or CSI-RS or DL ​​PRS in the group of symbols in the time slot.

[0262] - For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a timeslot, and the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subset of symbols in the group of symbols, then: if the UE does not indicate the capability of [partialCancellation], then the UE does not expect to cancel transmission of PUCCH or PUSCH or PRACH in the group of symbols if the first symbol in the group occurs within T_(proc, 2) relative to the last symbol of the CORESET in which the UE detected the DCI format; otherwise, the UE cancels the actual repetition of PUCCH or PUSCH or PUSCH [6, TS38.214] determined according to sections 9 and 9.2.5 or section 6.1 of [6, TS38.214], or cancels transmission of PRACH in the group of symbols.

[0263] - For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols of a timeslot, and the UE detects a DCI format that indicates to the UE that a subset of symbols in the group of symbols receive CSI-RS or PDSCH, then: If the UE indicates the capability of [partialCancellation], then the UE is not expected to cancel transmission of PUCCH or PUSCH or PRACH in symbols of the group of symbols relative to the last symbol of the CORESET in which the UE detected the DCI format occurring in T proc , 2. The UE cancels the transmission of PUCCH or PUSCH or the actual repetition of PUSCH [6, TS 38.214] determined according to sections 9 and 9.2.5 or section 6.1 of [6, TS 38.214], or cancels the transmission of PRACH in the remaining symbols of a group of symbols.

[0264] - For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a timeslot, and the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subgroup of symbols in the group of symbols, then: The UE does not expect to cancel transmission of SRS in symbols of the subgroup of symbols that occur within T_(proc, 2) relative to the last symbol of the CORESET in which the UE detected the DCI format. The UE cancels SRS transmission in the remaining symbols of the subgroup of symbols.

[0265] -For a set of symbols of a timeslot indicated to the UE by tdd-UL-DL-ConfigurationCommon as uplink, when PDCCH, PDSCH or CSI-RS overlaps (even partially) with the set of symbols of the timeslot, the UE does not receive PDCCH, PDSCH or CSI-RS.

[0266] -For a set of symbols of a timeslot indicated to the UE by tdd-UL-DL-ConfigDedicated as uplink, when PDCCH, PDSCH or CSI-RS overlaps (even partially) with the set of symbols of the timeslot, the UE does not receive PDCCH, PDSCH or CSI-RS.

[0267] - For a group of symbols of a timeslot indicated to the UE by tdd-UL-DL-ConfigurationCommon as uplink, if the UE does not have a measurement gap, the UE does not receive the DL PRS in the group of symbols of the timeslot.

[0268] - For a group of symbols of a timeslot indicated to the UE by tdd-UL-DL-ConfigurationDedicated as uplink, if the UE does not have a measurement gap, the UE does not receive the DL PRS in the group of symbols of the timeslot.

[0269] -For a set of symbols of a timeslot indicated to the UE by tdd-UL-DL-ConfigurationCommon as downlink, when PUSCH, PUCCH, PRACH or SRS overlaps (even partially) with the set of symbols of the timeslot, the UE does not transmit PUSCH, PUCCH, PRACH or SRS.

[0270] - For a set of symbols of a timeslot indicated to the UE by tdd-UL-DL-ConfigurationDedicated as downlink, when PUSCH, PUCCH, PRACH or SRS overlaps (even partially) with the set of symbols of the timeslot, the UE does not transmit PUSCH, PUCCH, PRACH or SRS.

[0271] -For a set of symbols in a time slot that are indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), the UE does not expect to receive dedicated higher layer parameters transmitted from the UE in the said set of symbols in the time slot, nor does it expect to receive dedicated higher layer parameters received by the UE in the said set of symbols in the time slot.

[0272] - For single carrier operation in unpaired spectrum, for a set of symbols of a timeslot indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon for reception of SS / PBCH blocks, the UE does not transmit PUSCH, PUCCH, PRACH in the timeslot if the transmission would overlap with any symbol in the set of symbols, and the UE does not transmit SRS in the set of symbols of the timeslot. When provided to the UE, the UE does not expect tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated to indicate a set of symbols of a timeslot as uplink.

[0273] - For a group of symbols in a slot corresponding to a valid PRACH opportunity and N symbols before the valid PRACH opportunity gap Symbols, as described in Section 8.1, if reception would overlap with any symbol in the set of symbols, then the UE does not receive PDCCH, PDSCH or CSI-RS in that time slot. The UE does not expect tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated to indicate a set of symbols of a time slot as downlink.

[0274] - For a set of symbols of a timeslot indicated to the UE by pdcch-ConfigSIB1 in the MIB for CORESET of Type0-PDCCH CSS set, the UE does not expect the set of symbols to be indicated as uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.

[0275] -If the UE is scheduled by the DCI format to receive PDSCH on multiple time slots, and if tdd-UL-DL-ConfigurationCommon indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to receive PDSCH in the time slot is an uplink symbol, then the UE does not receive PDSCH in that time slot.

[0276] -If the UE is scheduled by the DCI format to receive PDSCH on multiple time slots, and if tdd-UL-DL-ConfigurationDedicated indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to receive PDSCH in the time slot is an uplink symbol, then the UE does not receive PDSCH in the time slot.

[0277] -If the UE is scheduled by the DCI format to receive PUSCH on multiple time slots, and if tdd-UL-DL-ConfigurationCommon indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to transmit PUSCH in the time slot is a downlink symbol, then the UE does not transmit PUSCH in the time slot.

[0278] - If the UE is scheduled by the DCI format to transmit PUSCH on multiple time slots, and if tdd-UL-DL-ConfigurationDedicated indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to transmit PUSCH in the time slot is a downlink symbol, then the UE does not transmit PUSCH in the time slot.

[0279] -For a set of symbols of a time slot, the UE does not expect to detect a DCI format 2_0 having an SFI index field value indicating the set of symbols of the time slot as uplink, nor does it expect to detect a DCI format indicating to the UE to receive PDSCH or CSI-RS in the set of symbols of the time slot.

[0280] -For a set of symbols in a time slot, the UE does not expect to detect a DCI format 2_0 having an SFI index field value indicating the set of symbols in the time slot as downlink, nor does it expect to detect a DCI format, a RAR UL grant, a fallbackRAR UL grant, or a successRAR indicating to the UE that PUSCH, PUCCH, PRACH, or SRS is transmitted in the set of symbols in the time slot.

[0281] - For a set of symbols in a time slot indicated as downlink / uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, the UE is not expected to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the time slot as uplink / downlink or variable, respectively.

[0282] -For a set of symbols in a time slot corresponding to a SS / PBCH block having a candidate SS / PBCH block index corresponding to the SS / PBCH block index indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon, as described in Section 4.1, the UE is not expected to detect DCI format 2_0 having an SFI index field value indicating the set of symbols of the time slot as uplink.

[0283] - For a group of symbols in a slot corresponding to a valid PRACH opportunity and N symbols before the valid PRACH opportunity gap symbols, as described in Section 8.1, the UE is not expected to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the timeslot as downlink.

[0284] - For a set of symbols in a timeslot for CORESET of a Type0-PDCCH CSS set indicated to the UE by pdcch-ConfigSIB1 in the MIB, the UE is not expected to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the timeslot as uplink.

[0285] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and when the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if one or more symbols of the set of symbols are symbols in the CORESET configured by the UE for PDCCH monitoring, then the UE receives the PDCCH in the CORESET only when the SFI index field value in the DCI format 2_0 indicates that the one or more symbols are downlink symbols.

[0286] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects a DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the SFI index field value in the DCI format 2_0 indicates a set of symbols of the time slot as variable and the UE detects a DCI format that indicates to the UE to receive PDSCH or CSI-RS in the said set of symbols of the time slot, then the UE receives PDSCH or CSI-RS in the said set of symbols of the time slot.

[0287] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE detects a DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the SFI index field value in the DCI format 2_0 indicates a set of symbols of the time slot as variable and the UE detects a DCI format, RAR UL grant, fallbackRAR UL grant or successRAR that transmits PUSCH, PUCCH, PRACH or SRS in the said set of symbols of the time slot, then the UE transmits PUSCH, PUCCH, PRACH or SRS in the said set of symbols of the time slot.

[0288] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the SFI index field value in DCI format 2_0 indicates a set of symbols of the time slot as variable and the UE does not detect a DCI format that indicates the UE to receive PDSCH or CSI-RS, or the UE does not detect a DCI format that indicates the UE to transmit PUSCH, PUCCH, PRACH or SRS in the said set of symbols of the time slot, RAR UL, fallbackRAR UL grant or successRAR grant, then the UE does not transmit or receive in the said set of symbols of the time slot.

[0289] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to receive DL PRS in a set of symbols in a time slot, then the UE receives DL PRS in the set of symbols in the time slot only if the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as downlink or variable.

[0290] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE detects DCI format 2_0 formatted for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to receive transmission of PUCCH or PUSCH or PRACH in a set of symbols in a time slot, then the UE transmits PUCCH or PUSCH or PRACH in the time slot only if the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as uplink.

[0291] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to transmit SRS in a set of symbols in the time slot, then the UE transmits SRS only when the symbol word group in the said set of symbols of the time slot is indicated as an uplink symbol by the SFI index field value in DCI format 2_0.

[0292] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: the UE does not expect to detect an SFI index field value indicating a set of symbols of the time slot as downlink in DCI format 2_0, nor does it expect to detect a DCI format that indicates to the UE that SRS, PUSCH, PUCCH or PRACH is transmitted in one or more symbols of the said set of symbols of the time slot, RAR UL grant, fallbackRAR UL grant or successRAR.

[0293] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE detects DCI format 2_0 formatted for the time slot using a time slot format value other than 255: if the set of symbols for the time slot contains any repeated symbols corresponding to PUSCH transmissions activated by a UL type 2 grant PDCCH, the UE does not expect to detect in DCI format 2_0 that indicates a set of symbols for the time slot as downlink or a variable SFI index field value.

[0294] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: the UE does not expect to detect in DCI format 2_0 that indicates a set of symbols of the time slot as an SFI index field value for the uplink, nor does it expect to detect a DCI format that indicates to the UE that PDSCH or CSI-RS is received in one or more symbols of the set of symbols in the time slot.

[0295] -If the UE is configured by higher layers to receive CSI-RS or PDSCH in a group of symbols in a time slot, and the UE detects a DCI format 2_0 with a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is uplink or variable, or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE cancels receiving CSI-RS in the group of symbols in the time slot or cancels receiving PDSCH in the time slot.

[0296] -If the UE is configured by a higher layer to receive DL PRS in a group of symbols in a time slot, and the UE detects a DCI format 2_0 having a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is uplink, or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE cancels receiving DL PRS in the group of symbols in the time slot.

[0297] - If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a slot, and the UE detects DCI format 2_0 with a slot format value other than 255 indicating a slot format, where a subgroup of symbols in the group of symbols are downlink or variable, or the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subgroup of symbols in a group of symbols, then: if the UE does not indicate the capability of [partialCancellation], then the first symbol in the group of symbols of the UE shall be relative to the last symbol of the CORESET in which the UE detected the DCI format, which occurs in the T proc, 2, it is not expected to cancel the transmission of PUCCH or PUSCH or PRACH in the said set of symbols; otherwise, the UE cancels the PUCCH or PUSCH or the actual repetition of PUSCH [6, TS38.214] determined according to Section 9 and Section 9.2.5 or Section 6.1 of [6, TS38.214], or cancels the transmission of PRACH in the said set of symbols.

[0298] - If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a slot, and the UE detects DCI format 2_0 with a slot format value other than 255 indicating a slot format, wherein a subgroup of symbols in the group of symbols are downlink or variable, or the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subgroup of symbols in a group of symbols, then: If the UE indicates the capability of [partialCancellation], then the UE does not expect to cancel transmission of PUCCH or PUSCH or PRACH in symbols of the group of symbols, wherein the symbols occur relative to the last symbol of the CORESET in which the UE detected the DCI format in T proc , 2. The UE cancels the PUCCH or PUSCH or the actual repetition of PUSCH [6, TS 38.214] determined according to Section 9 and Section 9.2.5 or Section 6.1 of [6, TS 38.214], or cancels the transmission of PRACH in the remaining symbols of a group of symbols.

[0299] - If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols of a slot, and the UE detects a DCI format 2_0 with a slot format value other than 255 indicating a slot format, wherein a subgroup of symbols in the group of symbols is downlink or variable, or the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subgroup of symbols in a group of symbols, then: The UE does not expect to cancel transmission of SRS in symbols of a group of symbols that occur within T_(proc, 2) relative to the last symbol of the CORESET in which the UE detected the DCI format. The UE cancels SRS transmission in the remaining symbols of the subgroup of symbols.

[0300] -If the UE does not detect an SFI index field value in DCI format 2_0 indicating the set of symbols of the time slot as variable or uplink and the UE does not detect a DCI format indicating to the UE that SRS, PUSCH, PUCCH or PRACH is transmitted in the set of symbols, then the UE assumes that the variable symbols configured by the UE for PDCCH monitoring in CORESET are downlink symbols.

[0301] -For a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE receives a corresponding indication of the DCI format, the UE receives PDSCH or CSI-RS in a set of symbols in the time slot.

[0302] -For a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE receives a corresponding indication of a DCI format, a RAR UL grant, a fallbackRAR UL grant or a successRAR, the UE transmits PUSCH, PUCCH, PRACH or SRS in a set of symbols in the time slot.

[0303] -For a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: the UE receives the PDCCH as described in section 10.1.

[0304] -For a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to receive PDSCH in a set of symbols in the time slot, then the UE does not receive PDSCH in a set of symbols in the time slot.

[0305] -For a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to receive DL PRS in a set of symbols in the time slot, then the UE receives DL PRS.

[0306] - For a set of symbols in a timeslot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in case the UE does not detect DCI format 2_0 providing the timeslot format for said timeslot: If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a set of symbols in a timeslot and the UE is not provided with enableConfiguredUL, then: The UE does not expect to cancel transmission of SRS in symbols of a set of symbols that occur within T_(proc, 2) relative to the last symbol of the CORESET for which the UE is configured to monitor PDCCH for DCI format 2_0. The UE cancels transmission of SRS in the remaining symbols of the set of symbols.

[0307] -For a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a set of symbols in the time slot and the UE is provided with enableConfiguredUL, then the UE may transmit SRS or PUCCH or PUSCH or PRACH, respectively.

[0308] The exceptions / exemptions to the conflict handling rule (or the new / / second conflict handling rule or the second action related to conflict handling) may be one or more of the following (e.g., the following refers to the behavior of "not applying the conflict handling rule" or "the conflict rule is disabled" as described above and throughout the present invention herein):

[0309] - If the UE additionally provides tdd-UL-DL-ConfigurationDedicated, the parameter tdd-UL-DL-ConfigurationDedicated covers the DL symbols of each slot over a number of slots as provided by tdd-UL-DL-ConfigurationCommon.

[0310] If the UE additionally provides tdd-UL-DL-ConfigurationDedicated, then the parameter tdd-UL-DL-ConfigurationDedicated covers the UL symbols of each slot over a number of slots as provided by tdd-UL-DL-ConfigurationCommon.

[0311] - For each slot with the corresponding index provided by slotIndex, the UE applies the format provided by the corresponding symbols. The UE receives tdd-UL-DL-ConfigurationDedicated to indicate uplink symbols and tdd-UL-DL-ConfigurationCommon to indicate downlink symbols.

[0312] - For each slot with the corresponding index provided by slotIndex, the UE applies the format provided by the corresponding symbols. The UE receives tdd-UL-DL-ConfigurationDedicated to indicate downlink symbols and tdd-UL-DL-ConfigurationCommon to indicate uplink symbols.

[0313] - The slot configuration period and the number of downlink symbols, uplink symbols and variable symbols in each slot of the slot configuration period are determined according to tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigDedicated and are different for each configured BWP (ie, each BWP has its own slot configuration).

[0314] - The UE considers the symbols in the time slot indicated as uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated to be available for reception.

[0315] - The UE considers the symbols indicated as downlink in the time slot by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated to be available for transmission.

[0316] -If the UE is not configured to listen to the PDCCH for DCI format 2_0, then for a set of symbols in the time slot indicated as uplink by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, the UE receives PDSCH or CSI-RS in a set of symbols in the time slot if the UE receives the corresponding indication of the DCI format.

[0317] -If the UE is not configured to listen to the PDCCH for DCI format 2_0, then for the set of symbols in the time slot indicated as downlink by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, the UE transmits PUSCH, PUCCH, PRACH or SRS in a set of symbols in the time slot if the UE receives a corresponding indication of DCI format, RAR UL grant, fallbackRAR UL grant or successRAR.

[0318] -For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to receive PDCCH or PDSCH or CSI-RS or DL ​​PRS in a group of symbols in a time slot, then the UE receives PDCCH, PDSCH, CSI-RS or DL ​​PRS if the UE detects a DCI format that indicates to the UE that PUSCH, PUCCH, PRACH or SRS is transmitted in at least one symbol of the group of symbols in the time slot.

[0319] - For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a timeslot, and the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subset of symbols in a group of symbols, then: if the UE does not indicate the capability of [partialCancellation], then the UE transmits PUCCH or PUSCH or an actual repetition of PUSCH [6, TS38.214] determined according to sections 9 and 9.2.5 or section 6.1 of [6, TS38.214], or transmits PRACH in a group of symbols.

[0320] - For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a timeslot, and the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subset of symbols in a group of symbols, then: if the UE indicates the capability of [partialCancellation], the UE transmits PUCCH or PUSCH or an actual repetition of PUSCH [6, TS38.214] determined according to sections 9 and 9.2.5 or section 6.1 of [6, TS38.214], or transmits PRACH in a group of symbols.

[0321] -For single carrier operation in unpaired spectrum, if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a timeslot, and the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subset of symbols in the group of symbols, then: the UE transmits SRS in the subset of symbols.

[0322] -For a set of symbols in a time slot indicated to the UE by tdd-UL-DL-ConfigurationCommon as uplink, the UE receives the PDCCH, PDSCH or CSI-RS when they overlap (even partially) with the set of symbols of the time slot.

[0323] -For a set of symbols in a time slot indicated to the UE by tdd-UL-DL-ConfigDedicated as uplink, the UE receives the PDCCH, PDSCH or CSI-RS when they overlap (even partially) with the set of symbols in the time slot.

[0324] - For a group of symbols in a time slot indicated to the UE by tdd-UL-DL-ConfigurationCommon as uplink, if the UE does not have a measurement gap, the UE does not receive the DL PRS in the group of symbols in the time slot.

[0325] - For a group of symbols of a timeslot indicated to the UE by tdd-UL-DL-ConfigurationDedicated as uplink, if the UE does not have a measurement gap, the UE receives a DL PRS in the group of symbols of the timeslot.

[0326] -For a set of symbols in a timeslot indicated to the UE by tdd-UL-DL-ConfigurationCommon as downlink, the UE transmits PUSCH, PUCCH, PRACH or SRS when they overlap (even partially) with the set of symbols of the timeslot.

[0327] -For a set of symbols in a timeslot indicated to the UE by tdd-UL-DL-ConfigurationDedicated as downlink, when PUSCH, PUCCH, PRACH or SRS overlaps (even partially) with the set of symbols of the timeslot, the UE transmits PUSCH, PUCCH, PRACH or SRS.

[0328] -For a set of symbols in a time slot indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), the UE receives dedicated higher layer parameters transmitted from the UE in the said set of symbols in the time slot, and receives dedicated higher layer parameters received by the UE in the said set of symbols in the time slot.

[0329] - For single carrier operation in unpaired spectrum, for a set of symbols of a timeslot indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon for reception of SS / PBCH blocks, the UE transmits PUSCH, PUCCH, PRACH in the timeslot if the transmission would overlap with any symbol in the set of symbols, and the UE transmits SRS in the set of symbols of the timeslot. When provided to the UE, the set of symbols of a timeslot is indicated by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated as uplink.

[0330] - For a group of symbols in a slot corresponding to a valid PRACH opportunity and N symbols before the valid PRACH opportunity gap Symbols, as described in Section 8.1, if reception would overlap with any symbol in the set of symbols, then the UE receives PDCCH, PDSCH or CSI-RS in the time slot. A set of symbols of a time slot is indicated as downlink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.

[0331] - For a set of symbols for the CORESET of the Type0-PDCCH CSS set indicated to the UE by pdcch-ConfigSIB1 in the MIB in a time slot, the set of symbols is indicated as uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.

[0332] - If the UE is scheduled by the DCI format to receive PDSCH on multiple time slots, and if tdd-UL-DL-ConfigurationCommon indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to receive PDSCH in the time slot is an uplink symbol, then the UE receives PDSCH in the time slot.

[0333] - If the UE is scheduled by the DCI format to receive PDSCH on multiple time slots, and if tdd-UL-DL-ConfigurationDedicated indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to receive PDSCH in the time slot is an uplink symbol, then the UE receives PDSCH in the time slot.

[0334] - If the UE is scheduled by the DCI format to receive PUSCH on multiple time slots, and if tdd-UL-DL-ConfigurationCommon indicates that, for a time slot in the multiple time slots, at least one symbol in a group of symbols in which the UE is scheduled to transmit PUSCH in the time slot is a downlink symbol, then the UE transmits PUSCH in the time slot.

[0335] - If the UE is scheduled by the DCI format to transmit PUSCH on a plurality of time slots, and if tdd-UL-DL-ConfigurationDedicated indicates that, for a time slot in the plurality of time slots, at least one symbol in a set of symbols in which the UE is scheduled to transmit PUSCH in the time slot is a downlink symbol, then the UE transmits PUSCH in the time slot.

[0336] - For a set of symbols of a time slot, the UE detects a DCI format 2_0 having an SFI index field value indicating the set of symbols of the time slot as uplink, and detects a DCI format indicating to the UE to receive PDSCH or CSI-RS in the set of symbols of the time slot.

[0337] -For a set of symbols of a time slot, the UE detects a DCI format 2_0 having an SFI index field value indicating the set of symbols of the time slot as downlink, and detects a DCI format, a RAR UL grant, a fallbackRAR UL grant, or a successRAR indicating to the UE that PUSCH, PUCCH, PRACH, or SRS is transmitted in the set of symbols of the time slot.

[0338] - For a set of symbols in a slot indicated by tdd-UL-DL-ConfigurationCommon as downlink, the UE does not expect to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the slot as uplink or variable, respectively.

[0339] - For a set of symbols in a slot indicated by tdd-UL-DL-ConfigurationDedicated as downlink, the UE does not expect to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the slot as uplink or variable, respectively.

[0340] - For a set of symbols in a slot indicated by tdd-UL-DL-ConfigurationCommon as uplink, the UE does not expect to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the slot as downlink or variable, respectively.

[0341] - For a set of symbols in a slot indicated by tdd-UL-DL-ConfigurationDedicated as uplink, the UE does not expect to detect DCI format 2_0 with an SFI index field value indicating the set of symbols of the slot as downlink or variable, respectively.

[0342] -For a set of symbols in a time slot corresponding to a SS / PBCH block having a candidate SS / PBCH block index corresponding to the SS / PBCH block index indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon, as described in Section 4.1, the UE detects DCI format 2_0 having an SFI index field value indicating the set of symbols of the time slot as uplink.

[0343] - For a group of symbols in a slot corresponding to a valid PRACH opportunity and N symbols before the valid PRACH opportunity gap symbols, as described in Section 8.1, the UE detects DCI format 2_0 having an SFI index field value indicating the set of symbols of the time slot as downlink.

[0344] - For a set of symbols of CORESET for Type0-PDCCH CSS set indicated to the UE by pdcch-ConfigSIB1 in the MIB in a time slot, the UE detects DCI format 2_0 with an SFI index field value indicating the set of symbols of the time slot as uplink.

[0345] -For a set of symbols in a time slot that are indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and when the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if one or more symbols of the set of symbols are symbols in the CORESET configured by the UE for PDCCH monitoring, then the UE receives the PDCCH in the CORESET if the SFI index field value in the DCI format 2_0 indicates the one or more symbols as variable symbols.

[0346] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and when the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if one or more symbols of the set of symbols are symbols in the CORESET configured by the UE for PDCCH monitoring, then the UE receives the PDCCH in the CORESET if the SFI index field value in the DCI format 2_0 indicates the one or more symbols as uplink symbols.

[0347] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the SFI index field value in DCI format 2_0 indicates a set of symbols of the time slot as uplink and the UE detects a DCI format that indicates to the UE to receive PDSCH or CSI-RS in the said set of symbols of the time slot, then the UE receives PDSCH or CSI-RS in the said set of symbols of the time slot.

[0348] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the SFI index field value in the DCI format 2_0 indicates a set of symbols of the time slot as downlink and the UE detects a DCI format, RAR UL grant, fallbackRAR UL grant, or successRAR that indicates to the UE that PUSCH, PUCCH, PRACH or SRS is transmitted in the said set of symbols of the time slot, then the UE transmits PUSCH, PUCCH, PRACH or SRS in the said set of symbols of the time slot.

[0349] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the SFI index field value in DCI format 2_0 indicates a set of symbols of the time slot as variable and the UE detects a DCI format that indicates the UE to receive PDSCH or CSI-RS, and the UE detects a DCI format that indicates the UE to transmit PUSCH, PUCCH, PRACH or SRS, RAR UL, fallbackRAR UL grant or successRAR grant in the said set of symbols of the time slot, then the UE transmits or receives in the said set of symbols of the time slot.

[0350] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to receive DL PRS in a set of symbols in the time slot, then the UE receives DL PRS in the set of symbols in the time slot if the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as uplink.

[0351] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to transmit PUCCH or PUSCH or PRACH in a set of symbols in a time slot, then the UE transmits PUCCH or PUSCH or PRACH in the time slot if the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as variable.

[0352] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to transmit PUCCH or PUSCH or PRACH in a set of symbols in the time slot, then the UE transmits PUCCH or PUSCH or PRACH in the time slot if the SFI index field value in DCI format 2_0 indicates the set of symbols of the time slot as downlink.

[0353] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to transmit SRS in a set of symbols in the time slot, then the UE transmits SRS in the set of symbols in the time slot that are indicated as variable symbols by the SFI index field value in DCI format 2_0.

[0354] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: if the UE is configured by higher layers to transmit SRS in a set of symbols in the time slot, then the UE transmits SRS in the set of symbols in the time slot that are indicated as downlink symbols by the SFI index field value in DCI format 2_0.

[0355] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: the UE detects in DCI format 2_0 that indicates a set of symbols of the time slot as an SFI index field value for downlink, and also detects a DCI format that indicates to the UE that SRS, PUSCH, PUCCH or PRACH is transmitted in one or more symbols of the set of symbols of the time slot, RAR UL grant, fallbackRAR UL grant or successRAR.

[0356] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 formatted for the time slot using a time slot format value other than 255: if the set of symbols for the time slot contains any repeated symbols corresponding to PUSCH transmissions activated by a UL type 2 grant PDCCH, then the UE detects in DCI format 2_0 that the set of symbols for the time slot is indicated as downlink or a variable SFI index field value.

[0357] -For a set of symbols in a time slot that is indicated to the UE as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE, and in the case where the UE detects DCI format 2_0 that provides a format for the time slot using a time slot format value other than 255: the UE detects in DCI format 2_0 that indicates a set of symbols of the time slot as an SFI index field value for the uplink, and also detects a DCI format that indicates to the UE that PDSCH or CSI-RS is received in one or more symbols of the set of symbols in the time slot.

[0358] -If the UE is configured by higher layers to receive CSI-RS or PDSCH in a group of symbols in a time slot, and the UE detects a DCI format 2_0 having a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is uplink or variable, or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE performs reception of CSI-RS in the group of symbols in the time slot or performs reception of PDSCH in the time slot.

[0359] -If the UE is configured by a higher layer to receive DL PRS in a group of symbols in a time slot, and the UE detects a DCI format 2_0 having a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is uplink, or the UE detects a DCI format indicating to the UE that PUSCH, PUCCH, SRS or PRACH is transmitted in at least one symbol in the group of symbols, then the UE performs reception of DL PRS in the group of symbols in the time slot.

[0360] - If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a time slot, and the UE detects DCI format 2_0 with a time slot format value other than 255 indicating a time slot format, wherein a subgroup of symbols in the group of symbols is downlink or variable, or the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subgroup of symbols in a group of symbols, then: if the UE does not indicate the capability of [partialCancellation], then the UE performs transmission of PUCCH or PUSCH or PRACH in the group of symbols.

[0361] - If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a time slot, and the UE detects DCI format 2_0 with a time slot format value other than 255 indicating a time slot format, wherein a subgroup of symbols in the group of symbols is downlink or variable, or the UE detects a DCI format that indicates to the UE to receive CSI-RS or PDSCH in a subgroup of symbols in a group of symbols, then: if the UE indicates the capability of [partialCancellation], then the UE performs the transmission of PUCCH or PUSCH or PRACH in the group of symbols.

[0362] -If the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a group of symbols in a time slot, and the UE detects DCI format 2_0 with a time slot format value indicating a time slot format other than 255, wherein a subgroup of symbols in the group of symbols is downlink or variable, or the UE detects a DCI format indicating to the UE to receive CSI-RS or PDSCH in a subgroup of symbols in a group of symbols, then: the UE performs transmission of SRS in the said group of symbols.

[0363] -If the UE detects an SFI index field value in DCI format 2_0 that indicates the set of symbols of the time slot as variable or uplink and the UE does not detect a DCI format that indicates to the UE that SRS, PUSCH, PUCCH or PRACH is transmitted in the set of symbols, then the UE assumes that the variable symbols configured by the UE for PDCCH monitoring in CORESET are downlink symbols.

[0364] -For a set of symbols in a time slot indicated as uplink by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE receives a corresponding indication of the DCI format, the UE receives PDSCH or CSI-RS in the set of symbols in the time slot.

[0365] -For a set of symbols in a time slot indicated as downlink by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE receives a corresponding indication of a DCI format, a RAR UL grant, a fallbackRAR UL grant or a successRAR, the UE transmits PUSCH, PUCCH, PRACH or SRS in a set of symbols in the time slot.

[0366] -For a set of symbols in a time slot indicated as uplink by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: the UE receives the PDCCH as described in section 10.1.

[0367] -For a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to receive PDSCH in a set of symbols in the time slot, then the UE receives PDSCH in a set of symbols in the time slot.

[0368] -For a set of symbols in a time slot indicated as uplink by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to receive PDSCH in a set of symbols in the time slot, then the UE receives PDSCH in a set of symbols in the time slot.

[0369] -For a set of symbols in a time slot indicated as uplink by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and the UE does not detect DCI format 2_0 of the time slot format providing the time slot: if the UE is configured by higher layers to receive DL PRS in a set of symbols in the time slot, then the UE receives DL PRS.

[0370] -For a set of symbols in a time slot indicated as variable by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a set of symbols in the time slot and the UE is not provided with enableConfiguredUL, then: the UE performs transmission of SRS in a set of symbols.

[0371] -For a set of symbols in a time slot indicated as uplink by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a set of symbols in the time slot and the UE is not provided with enableConfiguredUL, then: the UE performs transmission of SRS in a set of symbols.

[0372] -For a set of symbols in a time slot indicated as downlink by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated (if provided), or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE and in the case where the UE does not detect DCI format 2_0 providing the time slot format for the time slot: if the UE is configured by higher layers to transmit SRS or PUCCH or PUSCH or PRACH in a set of symbols in the time slot and the UE is provided with enableConfiguredUL, then the UE may transmit SRS or PUCCH or PUSCH or PRACH, respectively.

[0373] The UE performs one or more actions / behaviors within the conflict handling rules (or first / old conflict handling rules) listed above, and performs one or more actions / behaviors within the exceptions / exemptions to the conflict handling rules (or new / second conflict handling rules) listed above. The UE performs one or more actions / behaviors within the conflict handling rules (or first / old conflict handling rules) on symbols indicated as variable or DL ​​or UL. The UE performs one or more actions / behaviors within the exceptions / exemptions to the conflict handling rules (or new / second conflict handling rules) on symbols indicated as new transmission direction.

[0374] The conflict handling rule is associated with the frequency resource. In one example, the first conflict handling rule is associated with the first frequency resource. The second conflict handling rule is associated with the second frequency resource. The UE performs a corresponding action for reception / transmission within the first frequency resource based on the first conflict handling rule. The UE performs a corresponding action for reception / transmission within the second frequency resource based on the second conflict handling rule. For example, the first conflict handling rule for the first frequency resource of the symbol is indicated to the UE, and the second conflict handling rule for the second resource of the symbol is indicated to the UE. If / when the frequency resource of the configured UL transmission or the scheduled UL transmission is within the first frequency resource, the UE will perform the first conflict handling rule on the symbol or treat the scheduled UL transmission on the symbol as an error situation. If / when the frequency resource of the configured UL transmission or the scheduled UL transmission is within the second frequency resource, the UE will perform the second conflict handling rule on the symbol. In another example, the first conflict handling rule is associated with the first frequency resource. The first conflict handling rule is not associated with the second frequency resource. The UE performs a corresponding action for reception / transmission within the first frequency resource based on the first conflict handling rule. The UE does not perform a corresponding action for reception / transmission within the second frequency resource based on the first conflict handling rule. For example, a conflict handling rule that is applied to a first frequency resource of a symbol is indicated to the UE. A conflict handling rule that is not applied to a second frequency resource of a symbol is indicated to the UE. If / when the frequency resource of a configured UL transmission or a scheduled UL transmission is within the first frequency resource, the UE will apply the conflict handling rule. If / when the frequency resource of a configured UL transmission or a scheduled UL transmission is within the second frequency resource, the UE will not apply the conflict handling rule. If / when the frequency resource of a configured UL transmission or a scheduled UL transmission is within the second frequency resource, the UE will execute the second conflict handling rule.

[0375] The transmission direction on the symbol is associated with the frequency resource. In one example, the first transmission direction is associated with the first frequency resource. The second transmission direction is associated with the second frequency resource. The UE performs corresponding actions for reception / transmission within the first frequency resource based on the first transmission direction. The UE performs corresponding actions for reception / transmission within the second frequency resource based on the second transmission direction. For example, DL is indicated to the UE for the first frequency resource used for the symbol, and UL is indicated to the UE for the second resource used for the symbol. If / when the frequency resource of the configured UL transmission or the scheduled UL transmission is within the first frequency resource, the UE will cancel the configured UL transmission on the symbol or treat the scheduled UL transmission on the symbol as an error condition. If / when the frequency resource of the configured UL transmission or the scheduled UL transmission is within the second frequency resource, the UE will perform the configured UL transmission or the scheduled UL transmission on the symbol. In another example, the first transmission direction is associated with the first frequency resource. The first transmission direction is not associated with the second frequency resource. The UE performs corresponding actions for reception / transmission within the first frequency resource based on the first transmission direction. The UE does not perform corresponding actions for reception / transmission within the second frequency resource based on the first transmission direction. For example, DL is indicated to the UE for a first frequency resource used for a symbol. DL is indicated to the UE for a second frequency resource that is not applicable to the symbol. If / when the frequency resource of the configured UL transmission or the scheduled UL transmission is within the first frequency resource, the UE will cancel the configured UL transmission on the symbol or treat the scheduled UL transmission on the symbol as an error case. If / when the frequency resource of the configured UL transmission or the scheduled UL transmission is within the second frequency resource, the UE behaves as if DL is not indicated for the symbol of the configured UL transmission or the scheduled UL transmission. If / when the frequency resource of the configured UL transmission or the scheduled UL transmission is within the second frequency resource, the UE will perform the configured UL transmission or the scheduled UL transmission on the symbol.

[0376] The first frequency resource and / or the second frequency resource may be a resource within a bandwidth part and / or a serving cell. The first frequency resource and / or the second frequency resource may be all / all resources within a bandwidth part and / or a serving cell. The UE may be indicated for both the first frequency resource and the second frequency resource. One of the first frequency resource and the second frequency resource may be indicated to the UE and the UE may derive the other (e.g., the first frequency resource is indicated to the UE, and the frequency resource of the serving cell / bandwidth part that is not within the first frequency resource is the second frequency resource). The second frequency resource is indicated to the UE, and the frequency resource of the serving cell / bandwidth part that is not within the second frequency resource is the first frequency resource. The UE may expect that reception / transmission will be within the first frequency resource or the second frequency resource range. The base station shall configure or schedule transmission / reception so that the frequency resource of transmission / reception will be within the first frequency resource or the second frequency resource range. The base station shall configure or schedule transmission / reception so that the frequency resource of transmission / reception does not span the first frequency resource and the second frequency resource. When the frequency resource of transmission / reception spans the first frequency resource and the second frequency resource, the UE may take one of the actions / behaviors related to the first frequency resource / second frequency resource (e.g., as described above). For example, if the UE cancels reception / transmission in any part of the frequency resource, for example, because the frequency resource for reception / transmission overlaps with the first frequency resource or the second frequency resource, the UE cancels all reception / transmission (for example, not part). When the frequency resource for transmission / reception spans the first frequency resource and the second frequency resource, the UE may take separate actions / behaviors for different frequency resources for transmission / reception. (For example, cancel transmission / reception in part of the frequency resource for transmission / reception. And perform transmission / reception in other parts of the frequency resource for transmission / reception).

[0377] The association between the conflict handling rule and the frequency resource may be fixed or predefined. The association between the conflict handling rule and the frequency resource may be indicated by the base station to the UE. The association may be configured via RRC signaling and / or indicated via a medium access control (MAC) control element (CE). The association may be indicated via DCI. The DCI may be monitored periodically. The DCI indicates that the association lasts for a certain period of time. When the association changes, the DCI updates the association. The association may be indicated together with the SFI. The association may be indicated separately from the SFI. For example, the first SFI-RNTI and / or the first position of the SFI field may be associated with the first frequency resource. The second SFI-RNTI and / or the second position of the SFI field may be associated with the second frequency resource. The SFI indicated by the DCI associated with the first SFI-RNTI and / or the first position of the SFI field may be associated with the first frequency resource. The SFI indicated by the DCI associated with the second SFI-RNTI and / or the second position of the SFI field may be associated with the second frequency resource. A bitmap associated with the SFI may be used to indicate a frequency resource associated with the SFI. A resource indicator value (RIV) associated with the SFI may be used to indicate a frequency resource associated with the SFI. A bandwidth portion associated with the SFI may be used to indicate a frequency resource associated with the SFI. A starting position and a length may be used to indicate a first frequency resource and / or a second frequency resource. A starting physical resource block (PRB) and a bandwidth may be used to indicate a first frequency resource and / or a second frequency resource.

[0378] The association between the SFI / transmission direction and the frequency resource may be indicated by the base station to the UE. The association may be configured via RRC signaling and / or indicated via MAC CE. The association may be indicated via DCI. The DCI may be monitored periodically. The DCI indicates that the association lasts for a certain period of time. When the association changes, the DCI updates the association. The association may be indicated together with the SFI. The association may be indicated separately from the SFI. For example, the first SFI Radio Network Temporary Identifier (RNTI) and / or the first position of the SFI field may be associated with the first frequency resource. The second SFI-RNTI and / or the second position of the SFI field may be associated with the second frequency resource. The SFI indicated by the DCI associated with the first SFI-RNTI and / or the first position of the SFI field may be associated with the first frequency resource. The SFI indicated by the DCI associated with the second SFI-RNTI and / or the second position of the SFI field may be associated with the second frequency resource. The bitmap associated with the SFI may be used to indicate the frequency resource associated with the SFI. The resource indicator value (RIV) associated with the SFI may be used to indicate the frequency resource associated with the SFI. The bandwidth part associated with the SFI may be used to indicate the frequency resource associated with the SFI. The starting position and length may be used to indicate the first frequency resource and / or the second frequency resource. The starting PRB and bandwidth may be used to indicate the first frequency resource and / or the second frequency resource.

[0379] The UE determines a first conflict handling rule in a first situation. The UE determines a second conflict handling rule in a second situation. For example, the UE determines the transmission direction (or SFI) of the symbol according to different transmission directions (or SFI) indicated for the symbol based on different situations and / or circumstances and / or factors. For example, the UE determines whether / how to handle reception / transmission on the symbol based on different situations and / or circumstances and / or factors (according to the transmission direction (or SFI) of the symbol). An example of a situation / factor may be an indication from a base station. The UE determines whether / how to handle reception / transmission on the symbol according to the transmission direction (or SFI) of the symbol based on the indication from the base station. The indication may enable / disable (all or some) conflict handling rules. The indication may indicate which conflict handling rules are applicable. The UE determines which conflict handling rules are applicable based on the indication. The UE determines whether the first conflict handling rule is applicable or the second conflict handling rule is applicable based on the indication. The UE determines whether the old conflict handling rule is applicable or the new conflict handling rule is applicable based on the indication. The indication applies to all time / frequency resources (e.g., all subsequent resources indicated). The indication applies to a subgroup of time resources (e.g., certain symbols or time slots). The indication applies to a subgroup of time resources (e.g., a specific PRB / bandwidth part (Bandwidth Part, BWP)). The indication may be an indication to implement duplex enhancement. Another example of a situation / factor may be the type of SFI (or signaling indicating SFI, such as a common RRC signal, a dedicated RRC signal, a DCI format 2_0, a scheduling DCI, etc.). The UE determines whether / how to process reception / transmission on a symbol based on the type of SFI (according to the transmission direction of the symbol (or SFI)). The UE determines which conflict handling rules apply based on the type of SFI (e.g., the SFI involved in the conflict handling rule). The UE determines whether the first conflict handling rule applies or the second conflict handling rule applies based on the type of SFI (e.g., the SFI involved in the conflict handling rule). The UE determines whether the old conflict handling rule applies or the new conflict handling rule applies based on the type of SFI (e.g., the SFI involved in the conflict handling rule). For example, the UE applies the first / old conflict handling rule to the SFI indicated by the common RRC signal. For example, the UE applies the second / new conflict handling rule for the SFI indicated by the dedicated RRC signal. The UE applies the conflict handling rule for the SFI indicated by the common RRC signal. The UE does not apply the conflict handling rule for the SFI indicated by the dedicated RRC signal. The UE applies the first conflict handling rule for the SFI indicated by the RRC signal. The UE applies the second conflict handling rule for the SFI indicated by the scheduling DCI or DCI format 2_0. The UE applies the conflict handling rule for the SFI indicated by the RRC signal. The UE does not apply the conflict handling rule for the SFI indicated by the scheduling DCI or DCI format 2_0.An example may be that the UE considers symbols indicated as downlink in a time slot by tdd-UL-DL-ConfigurationCommon as available for reception (and not available for transmission), and considers symbols indicated as uplink in a time slot by tdd-UL-DL-ConfigurationCommon or by tdd-UL-DL-ConfigurationDedicated as available for transmission (and not available for reception). The UE considers symbols indicated as downlink in a time slot by tdd-UL-DL-ConfigurationDedicated as available for transmission, and considers symbols as uplink in a time slot by tdd-UL-DL-ConfigurationDedicated as available for reception. Another example may be that for a set of symbols in a time slot indicated to the UE by tdd-UL-DL-ConfigurationCommon as downlink, when PUSCH, PUCCH, PRACH or SRS overlaps (even partially) with the set of symbols of the time slot, the UE does not transmit PUSCH, PUCCH, PRACH or SRS. For a set of symbols in a time slot indicated to the UE by tdd-UL-DL-ConfigurationDedicated as downlink, when PUSCH, PUCCH, PRACH or SRS overlaps with the set of symbols of the time slot (even partially), the UE transmits PUSCH, PUCCH, PRACH or SRS. Another example of a situation / factor may be the type of reception / transmission (e.g., DL reception, UL transmission, configured DL reception, DL reception scheduled by DCI, configured UL transmission, UL transmission scheduled by DCI). The UE determines whether / how to handle reception / transmission on a symbol based on the type of reception / transmission (according to the transmission direction (or SFI) of the symbol). The UE determines which conflict handling rules apply to reception / transmission based on the type of reception / transmission. The UE determines whether the first conflict handling rule applies or the second conflict handling rule applies based on the type of reception / transmission. The UE determines whether the old conflict handling rule applies or the new conflict handling rule applies based on the type of reception / transmission. For example, the UE applies the first / old conflict handling rule for (DL) reception. The UE applies the second / new conflict handling rule for UL transmission. The UE applies the conflict handling rule for (DL) reception. The UE does not apply the conflict handling rule for (DL) reception. The UE applies the first / old conflict handling rule for (UL) configured transmissions. The UE applies the second / new conflict handling rule for (UL) transmissions scheduled by DCI. The UE applies the conflict handling rule for (UL) configured transmissions. The UE does not apply the conflict handling rule for (UL) transmissions scheduled by DCI.An example may be: for a set of symbols indicated to the UE by tdd-UL-DL-ConfigurationCommon as uplink in a time slot, when PDCCH, PDSCH or CSI-RS (even partially) overlaps with the set of symbols in the time slot, the UE does not receive PDCCH, PDSCH or CSI-RS. For a set of symbols indicated to the UE by tdd-UL-DL-ConfigurationCommon as downlink in a time slot, when PUSCH, PUCCH, PRACH or SRS (even partially) overlaps with the set of symbols in the time slot, the UE transmits PUSCH, PUCCH, PRACH or SRS. Another example: For a set of symbols indicated to the UE as downlink by tdd-UL-DL-ConfigurationCommon in a time slot, when PUSCH, PUCCH, PRACH or SRS (even partially) overlaps with the set of symbols of the time slot, the UE does not transmit PUSCH, PUCCH, PRACH or SRS, where PUSCH, PUCCH, PRACH or SRS are configured to be transmitted. For a set of symbols indicated to the UE as downlink by tdd-UL-DL-ConfigurationCommon in a time slot, when PUSCH, PUCCH, PRACH or SRS (even partially) overlaps with the set of symbols of the time slot, the UE does not transmit PUSCH, PUCCH, PRACH or SRS, where PUSCH, PUCCH, PRACH or SRS is scheduled by DCI.

[0380] In another embodiment, the UE applies a first conflict handling rule. The UE applies a second conflict handling rule. The UE determines whether to apply the first conflict handling rule or the second conflict handling rule based on an indication from a base station. The indication applies to all time / frequency resources (e.g., all subsequent resources after the indication). The indication applies to a subgroup of time resources (e.g., certain symbols or time slots). The indication applies to a subgroup of time resources (e.g., a specific PRB / BWP). The indication may be an indication to implement duplex enhancement. The indication may be indicated by an RRC signal. The indication may be indicated by a MAC CE. The indication may be indicated by a DCI. The DCI may be a DCI format 2_0. The DCI may be a scheduled DCI. The indication applies to transmission / reception scheduled by the DCI. The indication applies to all following transmissions / receptions. The indication applies to a time period. The indication applies to a time period associated with the DCI. The indication applies to a time period associated with the DCI format 2_0. The UE applies a first conflict handling rule for a first type of SFI. The UE applies a second conflict handling rule for a second type of SFI. The UE determines whether to apply the first conflict handling rule or the second conflict handling rule based on the type of the SFI. If the (first) SFI is a first type of SFI, the UE applies a first conflict handling rule for the (first) SFI. If the (second) SFI is a second type of SFI, the UE applies a second conflict handling rule for the (second) SFI. The type of SFI may include one or more of the following: an SFI indicated by an RRC signal, an SFI indicated by a common RRC signal, an SFI indicated by a dedicated RRC signal, an SFI indicated by a DCI, an SFI indicated by a DCI format 2_0, an SFI indicated by a DCI for scheduling transmission / reception, and an SFI indicated by an RRC for configuring transmission / reception. The UE applies a first conflict handling rule for the first type of transmission / reception. The UE applies a second conflict handling rule for the second type of transmission / reception. The UE determines whether to apply the first conflict handling rule or the second conflict handling rule for the transmission / reception based on the type of transmission / reception. The UE determines whether to apply the first conflict handling rule or the second conflict handling rule based on the type of transmission / reception. If the (first) transmission / reception is a first type of transmission / reception, the UE applies the first conflict handling rule for the (first) transmission / reception. If the (second) transmission / reception is a second type of transmission / reception, the UE applies a second conflict handling rule for the (second) transmission / reception. The type of transmission / reception may be one of the following: DL reception, UL transmission, configured DL reception, DL reception scheduled by DCI, configured UL transmission, UL transmission scheduled by DCI.

[0381] In another embodiment, the base station applies a first conflict handling rule for the UE. The base station applies a second conflict handling rule for the UE. The base station determines whether to apply the first conflict handling rule or the second conflict handling rule based on an indication to the UE. The indication applies to all time / frequency resources (e.g., all subsequent resources after the indication). The indication applies to a subgroup of time resources (e.g., certain symbols or time slots). The indication applies to a subgroup of time resources (e.g., a specific PRB / BWP). The indication may be an indication to implement duplex enhancement. The indication may be indicated by an RRC signal. The indication may be indicated by a MAC CE. The indication may be indicated by a DCI. The DCI may be a DCI format 2_0. The DCI may be a scheduled DCI. The indication applies to transmission / reception scheduled by the DCI. The indication applies to all following transmission / reception. The indication applies to a time period. The indication applies to a time period associated with the DCI. The indication applies to a time period associated with the DCI format 2_0. The base station applies a first conflict handling rule for a first type of SFI for the UE. The base station applies a second conflict handling rule for a second type of SFI for the UE. The base station determines whether to apply the first conflict handling rule or the second conflict handling rule based on the type of SFI. If the (first) SFI is the first type of SFI, the base station applies the first conflict handling rule for the (first) SFI. If the (second) SFI is the second type of SFI, the base station applies the second conflict handling rule for the (second) SFI. The type of SFI may include one or more of the following: an SFI indicated by an RRC signal, an SFI indicated by a public RRC signal, an SFI indicated by a dedicated RRC signal, an SFI indicated by a DCI, an SFI indicated by a DCI format 2_0, an SFI indicated by a DCI for scheduling transmission / reception, and an SFI indicated by an RRC for configuring transmission / reception. The base station applies the first conflict handling rule for the first type of transmission / reception of the UE. The base station applies the second conflict handling rule for the second type of transmission / reception of the UE. The base station determines whether to apply the first conflict handling rule or the second conflict handling rule for transmission / reception based on the type of transmission / reception. The base station determines whether to apply the first conflict handling rule or the second conflict handling rule based on the type of transmission / reception. If the transmission / reception is a first type of transmission / reception, the base station applies a first conflict handling rule for the (first) transmission / reception. If the transmission / reception is a second type of transmission / reception, the base station applies a second conflict handling rule for the (second) transmission / reception. The type of transmission / reception may be one of the following: UL reception, DL transmission, configured UL reception, UL reception scheduled by DCI, configured DL transmission, DL transmission scheduled by DCI.

[0382] In another embodiment, the UE receives an indication of a first frequency resource from a base station. The UE receives a first SFI from the base station. The first frequency resource is associated with the first SFI. The UE processes reception / transmission of its frequency resource within the first frequency resource based on the first SFI. The UE does not process reception / transmission of its frequency resource not within the first frequency resource based on the first SFI. The UE processes reception / transmission of its frequency resource not within the first frequency resource as if the first SFI is not indicated / existent. If / when the first SFI indicates that the symbol is UL and the frequency resource configured for reception is within the first frequency resource, the UE cancels the configured (DL) reception on the symbol. If / when the first SFI indicates that the symbol is UL and the frequency resource configured for reception is not within the first frequency resource, the UE performs the configured (DL) reception on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource configured for transmission is within the first frequency resource, the UE cancels the configured (UL) transmission on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource configured for transmission is within the first frequency resource, the UE performs the configured (UL) transmission on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource configured for transmission is not within the first frequency resource, the UE performs the configured (UL) transmission on the symbol. If / when the first SFI indicates that the symbol is UL and the frequency resource for scheduled reception is within the first frequency resource, the UE does not expect to schedule (DL) reception on the symbol. If / when the first SFI indicates that the symbol is UL and the frequency resource for configured reception is not within the first frequency resource, the UE schedules (DL) reception on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource for scheduled transmission is within the first frequency resource, the UE does not expect to schedule (UL) transmission on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource for scheduled transmission is not within the first frequency resource, the UE schedules (UL) transmission on the symbol. The UE receives an indication of a second frequency resource. The UE receives a second SFI. The second frequency resource is associated with the second SFI. The UE processes reception / transmission of its frequency resource within the second frequency resource based on the second SFI. If / when the second SFI indicates that the symbol is UL and the frequency resource for configured reception is within the second frequency resource, the UE cancels the configured (DL) reception on the symbol. If / when the second SFI indicates that the symbol is DL and the frequency resource for configured transmission is within the second frequency resource, the UE cancels the configured (UL) transmission on the symbol. If / when the second SFI indicates the symbol as UL and the frequency resource of the scheduled transmission is within the second frequency resource, the UE does not expect scheduled (DL) reception on the symbol. If / when the second SFI indicates the symbol as DL and the frequency resource of the scheduled transmission is within the second frequency resource, the UE does not expect scheduled (UL) transmission on the symbol.

[0383] In another embodiment, the base station transmits an indication of the first frequency resource to the UE. The base station transmits a first SFI. The first frequency resource is associated with the first SFI. The base station processes reception / transmission of its frequency resource within the first frequency resource based on the first SFI. The base station does not process reception / transmission of its frequency resource not within the first frequency resource based on the first SFI. The base station processes reception / transmission of its frequency resource not within the first frequency resource as if the first SFI is not indicated / existent. If / when the first SFI indicates that the symbol is UL and the frequency resource configured for transmission is within the first frequency resource, the base station cancels the configured (DL) transmission on the symbol. If / when the first SFI indicates that the symbol is UL and the frequency resource configured for transmission is not within the first frequency resource, the base station performs the configured (DL) transmission on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource configured for reception is within the first frequency resource, the base station cancels the configured (UL) reception on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource configured for reception is within the first frequency resource, the base station performs the configured (UL) reception on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource configured for reception is not within the first frequency resource, the base station performs the configured (UL) reception on the symbol. If / when the first SFI indicates that the symbol is UL and the frequency resource for scheduled transmission is within the first frequency resource, the base station avoids scheduling (DL) transmission on the symbol. If / when the first SFI indicates that the symbol is UL and the frequency resource for scheduled transmission is not within the first frequency resource, the base station schedules (DL) transmission on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource for scheduled reception is within the first frequency resource, the base station avoids scheduling (UL) reception on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource for scheduled reception is not within the first frequency resource, the base station schedules (UL) reception on the symbol. The base station transmits an indication of a second frequency resource to the UE. The base station transmits a second SFI. The second frequency resource is associated with the second SFI. The base station processes reception / transmission of its frequency resource within the second frequency resource based on the second SFI. If / when the second SFI indicates that the symbol is UL and the frequency resource for configured transmission is within the second frequency resource, the base station cancels the configured (DL) transmission on the symbol. If / when the second SFI indicates that the symbol is DL and the frequency resource for configured reception is within the second frequency resource, the base station cancels the configured (UL) reception on the symbol. If / when the second SFI indicates the symbol as UL and the frequency resource scheduled for transmission is within the second frequency resource, the base station avoids scheduling (DL) transmission on the symbol. If / when the second SFI indicates the symbol as DL and the frequency resource scheduled for reception is within the second frequency resource, the base station avoids scheduling (UL) reception on the symbol.

[0384] In another embodiment, the UE receives an indication of a first frequency resource from a base station. The UE receives a first SFI. The first frequency resource is not associated with the first SFI. The UE does not process reception / transmission of its frequency resource within the first frequency resource based on the first SFI. The UE processes reception / transmission of its frequency resource within the first frequency resource as if the first SFI is not indicated / existent. The UE processes reception / transmission of its frequency resource not within the first frequency resource based on the first SFI. If / when the first SFI indicates a symbol as UL and the frequency resource configured for reception is not within the first frequency resource, the UE cancels the configured (DL) reception on the symbol. If / when the first SFI indicates a symbol as UL and the frequency resource configured for reception is within the first frequency resource, the UE performs the configured (DL) reception on the symbol. If / when the first SFI indicates a symbol as DL and the frequency resource configured for transmission is not within the first frequency resource, the UE cancels the configured (UL) transmission on the symbol. If / when the first SFI indicates a symbol as DL and the frequency resource configured for transmission is not within the first frequency resource, the UE performs the configured (UL) transmission on the symbol. If / when the first SFI indicates a symbol as DL and the frequency resource configured for reception is within the first frequency resource, the UE performs the configured (UL) transmission on the symbol. If / when the first SFI indicates the symbol as UL and the frequency resource for scheduled reception is not within the first frequency resource, the UE does not expect to schedule (DL) reception on the symbol. If / when the first SFI indicates the symbol as UL and the frequency resource for scheduled reception is within the first frequency resource, the UE schedules (DL) reception on the symbol. If / when the first SFI indicates the symbol as DL and the frequency resource for scheduled transmission is not within the first frequency resource, the UE does not expect to schedule (UL) transmission on the symbol. If / when the first SFI indicates the symbol as DL and the frequency resource for scheduled transmission is within the first frequency resource, the UE schedules (UL) transmission on the symbol.

[0385] In another embodiment, the base station transmits an indication of the first frequency resource to the UE. The base station transmits the first SFI. The first frequency resource is not associated with the first SFI. The base station does not process reception / transmission of its frequency resource within the first frequency resource based on the first SFI. The base station processes reception / transmission of its frequency resource within the first frequency resource as if the first SFI is not indicated / existent. The base station processes reception / transmission of its frequency resource not within the first frequency resource based on the first SFI. If / when the first SFI indicates that the symbol is UL and the frequency resource configured for transmission is not within the first frequency resource, the base station cancels the configured (DL) transmission on the symbol. If / when the first SFI indicates that the symbol is UL and the frequency resource configured for transmission is within the first frequency resource, the base station performs the configured (DL) transmission on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource configured for reception is not within the first frequency resource, the base station cancels the configured (UL) reception on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource configured for reception is not within the first frequency resource, the base station performs the configured (UL) reception on the symbol. If / when the first SFI indicates that the symbol is DL and the frequency resource configured for reception is within the first frequency resource, the base station performs the configured (UL) reception on the symbol. If / when the first SFI indicates the symbol as UL and the frequency resource scheduled for transmission is not within the first frequency resource, the base station avoids scheduling (DL) transmission on the symbol. If / when the first SFI indicates the symbol as UL and the frequency resource scheduled for transmission is within the first frequency resource, the base station schedules (DL) transmission on the symbol. If / when the first SFI indicates the symbol as DL and the frequency resource scheduled for reception is not within the first frequency resource, the base station avoids scheduling (UL) reception on the symbol. If / when the first SFI indicates the symbol as DL and the frequency resource scheduled for reception is within the first frequency resource, the base station schedules (UL) reception on the symbol.

[0386] In various embodiments, conflict handling rules may be replaced with conflict handling related actions or conflict handling related behaviors.

[0387] In various embodiments, the SFI may be replaced with the transfer direction.

[0388] In various embodiments, the transfer direction may be replaced with SFI.

[0389] In various embodiments, unless otherwise indicated, the present invention describes the behavior or operation of a single serving cell.

[0390] In various embodiments, unless otherwise stated, the present disclosure describes the behavior or operation of multiple serving cells.

[0391] In various embodiments, unless otherwise indicated, the present invention describes the behavior or operation of a single bandwidth portion.

[0392] In various embodiments, unless otherwise indicated, the base station configures multiple bandwidth parts for the UE.

[0393] In various embodiments, unless otherwise indicated, the base station configures a single bandwidth portion for the UE.

[0394] See also Figure 6 , utilizing this and other concepts, systems, and methods of the present invention, a method 1000 for a UE in a wireless communication system includes receiving time slot format information from a base station (step 1002), wherein the time slot format information corresponds to four symbol types (step 1004), and wherein the four symbol types include at least DL, UL, and variable (step 1006).

[0395] In various embodiments, the fourth symbol type is different from DL / UL and variable.

[0396] In various embodiments, the fourth symbol type is one of "N", which means "middle", "B", which means "bidirectional", "detour", "X", which means "special", "T", which means "transparent", "free", "duplex", "full-duplex" or "variable duplex".

[0397] In various embodiments, the UE is allowed to perform transmission and reception on symbols indicated as the fourth symbol type.

[0398] In various embodiments, the UE performs transmission and reception simultaneously on symbols indicated as the fourth symbol type.

[0399] In various embodiments, the UE performs a first process for transmission / reception on symbols indicated as the fourth symbol type, and performs a second process for transmission / reception on symbols indicated as variable, DL, or UL.

[0400] In various embodiments, the fourth symbol type covers DL.

[0401] In various embodiments, the fourth symbol type covers the UL.

[0402] In various embodiments, the fourth symbol type coverage is variable.

[0403] In various embodiments, the fourth symbol type indicated by DCI format 2_0 covers the DL configured by the RRC signal.

[0404] In various embodiments, the fourth symbol type indicated by DCI format 2_0 covers the UL configured by the RRC signal.

[0405] In various embodiments, DL coverage of the fourth symbol type is not allowed.

[0406] In various embodiments, UL coverage of the fourth symbol type is not allowed.

[0407] In various embodiments, variable coverage of the fourth symbol type is not allowed.

[0408] In various embodiments, the DL indicated by DCI format 2_0 is not allowed to cover the fourth symbol type indicated by RRC.

[0409] In various embodiments, the UL indicated by DCI format 2_0 is not allowed to cover the fourth symbol type indicated by RRC.

[0410] In various embodiments, the variable coverage indicated by DCI format 2_0 is not allowed for the fourth symbol type indicated by RRC.

[0411] Return to view Figure 3 and 4 In one or more embodiments from the perspective of a UE, the apparatus 300 includes program code 312 stored in a memory 310 of a transmitter. The CPU 308 may execute the program code 312 to: (i) receive slot format information from a base station; (ii) wherein the slot format information corresponds to four symbol types; and (iii) wherein the four symbol types include at least DL, UL, and variable. In addition, the CPU 308 may execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise herein.

[0412] See also Figure 7 , utilizing this and other concepts, systems and methods of the present invention, a method 1010 for a UE in a wireless communication system includes: receiving an indication of which symbol duplex enhancement is applicable to (step 1012); if / when duplex enhancement is applicable to a first DL symbol, performing UL transmission on the first DL symbol (step 1014); and if / when duplex enhancement is not applicable to a second DL symbol, canceling the UL transmission on the second DL symbol (step 1016).

[0413] In various embodiments, if / when duplex enhancement is applicable for a symbol, both UL transmission and DL reception on that symbol are allowed.

[0414] In various embodiments, the first DL symbol and / or the second DL symbol is configured as DL by an RRC signal.

[0415] In various embodiments, the indication of which symbols the duplex enhancement applies to is indicated by the SFI.

[0416] In various embodiments, the indication of which symbol the duplex enhancement applies to is indicated by a fourth symbol type other than DL / UL / variable.

[0417] In various embodiments, the fourth symbol type covers the DL configured by the RRC signal.

[0418] In various embodiments, the fourth symbol type covers a variable configured by RRC signaling.

[0419] In various embodiments, the UE performs UL transmission on the DL symbols configured by the RRC signal covered by the fourth symbol type.

[0420] In various embodiments, the UE does not perform UL transmission on DL symbols configured by the RRC signal that are not covered by the fourth symbol type.

[0421] In various embodiments, DL symbols or variable symbols may be indicated as applicable for duplex enhancement, and / or UL symbols may not be allowed to be indicated as applicable for duplex enhancement.

[0422] Return to view Figure 3 and 4 In one or more embodiments from the perspective of the UE, the apparatus 300 includes program code 312 stored in a memory 310 of the transmitter. The CPU 308 may execute the program code 312 to: (i) receive an indication of which symbol the duplex enhancement is applicable to; (ii) if / when the duplex enhancement is applicable to a first DL symbol, perform an UL transmission on the first DL symbol; and (iii) if / when the duplex enhancement is not applicable to a second DL symbol, cancel the UL transmission on the second DL symbol. In addition, the CPU 308 may execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise herein.

[0423] Any combination of the above concepts or teachings can be combined or formed into new embodiments. The disclosed details and embodiments can be used to at least (but not limited to) solve the problems mentioned above and herein.

[0424] It should be noted that any of the methods, alternatives, steps, examples and embodiments presented herein may be applied independently, individually and / or in combination with multiple methods, alternatives, steps, examples and embodiments.

[0425] The above has described various aspects of the present disclosure. It should be understood that the teachings herein can be implemented in a wide variety of forms, and any specific structure, function, or both disclosed herein are only representative. Based on the teachings herein, it should be understood by those skilled in the art that the aspects disclosed herein can be implemented independently of any other aspects, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement a device or practice method. In addition, other structures, functions, or structures and functions other than one or more of the aspects described herein or different from one or more of the aspects described herein can be used to implement this device or practice this method. As an example of some of the above concepts, in some aspects, parallel channels can be established based on pulse repetition frequency. In some aspects, parallel channels can be established based on pulse position or offset. In some aspects, parallel channels can be established based on time hopping sequences. In some aspects, parallel channels can be established based on pulse repetition frequency, pulse position or offset, and time hopping sequences.

[0426] Those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0427] Those of ordinary skill in the art will further appreciate that the various illustrative logical blocks, modules, processors, components, circuits, and algorithm steps described in conjunction with the various aspects disclosed herein may be implemented as electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two, which may be designed using source decoding or some other technique), and various forms of programs or design code with instructions (which may be referred to herein as "software" or "software modules" for convenience), or a combination of the two. 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 on the specific application and the design constraints imposed on the overall system. Those of ordinary skill in the art may implement the described functionality in different ways for each specific application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

[0428] In addition, the various illustrative logical blocks, modules, and circuits described in conjunction with the various aspects disclosed herein may be implemented within or performed by an integrated circuit ("IC"), an access terminal, or an access point. An IC may include a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, electrical components, optical components, mechanical components, or any combination thereof designed to perform the functions described herein, and may execute code or instructions residing within the IC, outside the IC, or both. 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, for example, a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0429] It should be understood that any specific order or hierarchy of steps in any disclosed process is an example of an exemplary method. It should be understood that based on design preferences, the specific order or hierarchy of steps in a process can be rearranged while remaining within the scope of the present disclosure. The attached method claims present the elements of the various steps in an exemplary order and are not intended to be limited to the specific order or hierarchy presented.

[0430] The steps of the method or algorithm described in conjunction with the various aspects disclosed herein can be implemented directly with hardware, with a software module executed by a processor, or with a combination of the two. Software modules (e.g., including executable instructions and related data) and other data may reside in a data memory, such as a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of computer-readable storage medium known in the art. An example storage medium may be coupled to a machine such as a computer / processor (for convenience, the machine may be referred to as a "processor" in this article) so that the processor can read information (e.g., code) from the storage medium and write information to the storage medium. An example storage medium may be integrated with a processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user device. In an alternative, the processor and the storage medium may reside in a user device as discrete components. In addition, in some aspects, any suitable computer program product may include a computer-readable medium, which includes a code related to one or more aspects of the present disclosure. In some aspects, a computer program product may include packaging materials.

[0431] Although the present invention has been described in conjunction with various aspects and examples, it will be appreciated that the present invention is capable of further modifications. This application is intended to cover any changes, uses or adaptations of the present invention, which generally follow the principles of the present invention and include such deviations from the present disclosure, which are within the scope of known and customary practice in the technical field to which the present invention belongs.

[0432] CROSS-REFERENCE TO RELATED APPLICATIONS

[0433] This application claims priority to and the benefit of U.S. Provisional Patent Application No. 63 / 278,050, filed on November 10, 2021, which is incorporated herein by reference in its entirety.

Claims

1. A method for a user equipment for unpaired spectrum operation, comprising: receiving one or more indications of which symbols duplex enhancement is applicable, wherein if duplex enhancement is applicable to a symbol, uplink transmission and downlink reception on the symbol are allowed; If duplex enhancement is applicable to a first downlink symbol, performing uplink transmission on the first downlink symbol; and If duplex enhancement is not applicable for the second downlink symbol, then canceling uplink transmission on the second downlink symbol, It is characterized in that downlink symbols or variable symbols can be indicated as applicable to duplex enhancement, and uplink symbols are not allowed to be indicated as applicable to duplex enhancement.

2. The method according to claim 1, characterized in that The first downlink symbol and / or the second downlink symbol is configured as a downlink by a radio resource control signal.

3. The method according to claim 1, characterized in that The one or more indications are indicated by a slot format indicator.

4. The method according to claim 1, characterized in that: The one or more indications are indicated by a fourth symbol type other than downlink, uplink, or variable.

5. The method according to claim 4, characterized in that The fourth symbol type covers the downlink configured by the radio resource control signal.

6. The method according to claim 4, characterized in that The fourth symbol type covers a variable configured by a radio resource control signal.

7. The method according to claim 4, characterized in that Further comprising performing uplink transmission on downlink symbols configured by the radio resource control signal covered by the fourth symbol type.

8. The method according to claim 4, characterized in that Further comprising not performing uplink transmission on downlink symbols configured by the radio resource control signal that are not covered by the fourth symbol type.

9. A user equipment for unpaired spectrum operation, comprising: Memory; and a processor operatively coupled to the memory, wherein the processor is configured to execute program code to: receiving one or more indications of which symbols duplex enhancement is applicable, wherein if duplex enhancement is applicable to a symbol, uplink transmission and downlink reception on the symbol are allowed; If duplex enhancement is applicable to a first downlink symbol, performing uplink transmission on the first downlink symbol; and If duplex enhancement is not applicable for the second downlink symbol, then canceling uplink transmission on the second downlink symbol, It is characterized in that downlink symbols or variable symbols can be indicated as applicable to duplex enhancement, and uplink symbols are not allowed to be indicated as applicable to duplex enhancement.

10. The user equipment according to claim 9, characterized in that The first downlink symbol and / or the second downlink symbol is configured as a downlink by a radio resource control signal.

11. The user equipment according to claim 9, characterized in that The one or more indications are indicated by a slot format indicator.

12. The user equipment according to claim 9, characterized in that The one or more indications are indicated by a fourth symbol type other than downlink, uplink, or variable.

13. The user equipment according to claim 12, characterized in that: The fourth symbol type covers the downlink configured by the radio resource control signal.

14. The user equipment according to claim 12, characterized in that: The fourth symbol type covers a variable configured by a radio resource control signal.

15. The user equipment according to claim 12, characterized in that: The processor is further configured to execute the program code to perform uplink transmission on downlink symbols configured by a radio resource control signal covered by the fourth symbol type.

16. The user equipment according to claim 12, characterized in that The processor is configured to execute the program code to not perform uplink transmission on downlink symbols configured by a radio resource control signal that are not covered by the fourth symbol type.

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