Method and apparatus for transmitting and receiving downlink control channel in wireless communication system

Abstract

A method and apparatus are disclosed from the perspective of a network. In one embodiment, the method includes the network transmitting a semi-static scheduling configuration to a user equipment for configuring a second physical downlink shared channel. The method also includes the network transmitting a configuration to the user equipment for configuring a first listening opportunity of a first physical downlink control channel and a second listening opportunity of a second physical downlink control channel, wherein the second physical downlink control channel is associated with the first physical downlink control channel. The method further includes the network not allowing the first physical downlink control channel and the second physical downlink control channel to partially or completely overlap the first physical downlink shared channel with the second physical downlink shared channel in the time domain to schedule the user equipment, wherein the last symbol of the later listening opportunity among the first and second listening opportunities ends less than a processing threshold before the start symbol of the second physical downlink shared channel.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 146,996 filed on February 8, 2021, U.S. Provisional Patent Application No. 63 / 185,404 filed on May 7, 2021, and U.S. Provisional Patent Application No. 63 / 219,268 filed on July 7, 2021, the entire disclosures of which are incorporated herein by reference in their entirety. Technical Field

[0003] The present disclosure relates generally to wireless communication networks, and more particularly, to a method and apparatus for transmitting and receiving a downlink control channel in a wireless communication system. Background Art

[0004] With the rapid growth of the demand for communicating large amounts of data to and from mobile communication devices, traditional mobile voice communication networks have evolved into networks with Internet Protocol (IP) packet communications, which can provide IP-bearing voice, multimedia, multicast and on-demand communication services to users of mobile communication devices.

[0005] An exemplary network structure is an Evolved Universal Terrestrial Radio Access Network (E-UTRAN). The E-UTRAN system can provide high data throughput to enable the above-mentioned IP-bearing voice and multimedia services. Currently, the 3GPP standards organization is discussing new next-generation (e.g., 5G) radio technologies. Therefore, changes to the current body of 3GPP standards are currently being submitted and considered to enable the 3GPP standards to evolve and be completed. Summary of the invention

[0006] A method and apparatus are disclosed from the perspective of a network. In one embodiment, the method includes the network transmitting a semi-persistent scheduling (SPS) configuration to a user equipment (UE) for configuring a second physical downlink shared channel (PDSCH). The method also includes the network transmitting a configuration to the UE for configuring a first listening time of a first physical downlink control channel (PDCCH) and a second listening time of a second PDCCH, wherein the second PDCCH is associated with the first PDCCH. The method further includes the network not allowing the first PDCCH and the second PDCCH to partially or completely overlap the first PDSCH and the second PDSCH in the time domain to schedule the UE, wherein the last symbol of the later listening time among the first and second listening times ends less than a processing threshold before the start symbol of the second PDSCH.

[0007] In addition, a method and apparatus are disclosed from the perspective of a UE. In one embodiment, the method includes a UE triggering a Power Headroom Reporting (PHR), wherein the UE generates a PHR Medium Access Control (MAC) Control Element (CE) in response to the triggered PHR. The method also includes the UE detecting a first downlink control information (DCI) from a first cell since the PHR is triggered, wherein the first DCI is associated with two physical downlink control channel (PDCCH) monitoring opportunities with different end symbols, and the earlier PDCCH monitoring opportunity of the two PDCCH monitoring opportunities is the earliest PDCCH monitoring opportunity for scheduling an initial first PUSCH since the PHR is triggered. The method further includes the UE detecting a second DCI from a second cell since the PHR was triggered, wherein the second DCI is associated with two other PDCCH monitoring occasions with different end symbols, and the second DCI schedules a second physical uplink shared channel (PUSCH) in a second time slot on the second cell, wherein the second time slot overlaps with the first time slot used to transmit the initial first PUSCH. In addition, the method includes the UE determining whether the power headroom of the second serving cell is real or virtual based on the later PDCCH monitoring occasion among at least the two PDCCH monitoring occasions. In addition, the method includes the UE transmitting a PHR MAC CE to the network, wherein the PHR MAC CE includes at least information about the power headroom (PH) of the second serving cell.

[0008] In addition, a method and apparatus are disclosed from the perspective of a UE. In one embodiment, the method includes the UE receiving an indication of an uplink cancellation indication (ULCI) by detecting a first group common physical downlink control channel (PDCCH) and a second group common PDCCH in a PDCCH repetition on a first cell, wherein the first PDCCH and the second PDCCH end with different symbols, the first PDCCH and the second PDCCH are in a time slot, and the indication of the ULCI corresponds to at least the first cell and the second cell. The method also includes the UE receiving a third PDCCH scheduling an uplink (UL) transmission on the second cell, wherein the third PDCCH ends between the first PDCCH and the second PDCCH. The method further includes the UE determining whether the indication of the ULCI is applicable to UL transmission based on whether at least the third PDCCH ends earlier than the first symbol of the earlier PDCCH among the first and second PDCCHs. In addition, the method includes the UE performing UL transmission in response to a determination that the indication of the ULCI is not applicable to UL transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A diagram of a wireless communication system is shown according to an exemplary embodiment.

[0010] 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.

[0011] Figure 3 is a functional block diagram of a communication system according to an exemplary embodiment.

[0012] Figure 4 According to an exemplary embodiment Figure 3 Functional block diagram of the program code.

[0013] Figure 5 This is a reproduction of Table 7.3.1.2.3-1 of 3GPP TS 38.212 V16.3.0.

[0014] Figure 6 This is a reproduction of Table 10.1-1 of 3GPP TS 38.213 V16.2.0.

[0015] Figure 7 is a diagram according to an exemplary embodiment.

[0016] Figure 8 is a flow chart according to an exemplary embodiment.

[0017] Fig. 9 is a flow chart according to an exemplary embodiment.

[0018] Fig.10 is a flow chart according to an exemplary embodiment.

[0019] Fig.11 is a flow chart according to an exemplary embodiment.

[0020] Fig.12 is a flow chart according to an exemplary embodiment.

[0021] Fig.13 is a diagram according to an exemplary embodiment.

[0022] Fig.14 is a diagram according to an exemplary embodiment.

[0023] Fig.15 is a diagram according to an exemplary embodiment.

[0024] Fig.16 is a diagram according to an exemplary embodiment.

[0025] Fig.17 is a diagram according to an exemplary embodiment.

[0026] Fig.18 is a diagram according to an exemplary embodiment.

[0027] Fig.19 is a diagram according to an exemplary embodiment.

[0028] Fig. 20 is a flow chart according to an exemplary embodiment.

[0029] Fig.21 is a diagram according to an exemplary embodiment.

[0030] Fig. 22 is a diagram according to an exemplary embodiment.

[0031] Fig.23 is a diagram according to an exemplary embodiment.

[0032] Fig.24 is a flow chart according to an exemplary embodiment. DETAILED DESCRIPTION

[0033] 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) radio access, 3GPP Long Term Evolution Advanced (LTE-A or LTE-Advanced), 3GPP2 Ultra Mobile Broadband (UMB), WiMax, 3GPP New Radio (NR), or some other modulation technology.

[0034] Specifically, the exemplary wireless communication system devices described below may be designed to support one or more standards, such as those provided by an association named "3rd Generation Partnership Project" referred to herein as 3GPP, including: RP-202024, "Revised WID: Further Enhancements for MIMO for NR", Samsung; TS 38.212 V16.2.0, "NR Multiplexing and Channel Coding (Release 16)"; TS 38.213 V16.3.0, "NR Physical Layer Procedures for Control (Release 16)"; TS 38.213 V16.4.0, "NR Physical Layer Procedures for Control (Release 16)"; TS 38.214 V16.3.0, "NR Physical Layer Procedures for Data (Release 16)"; TS 38.321 V16.3.0, "NR; Medium Access Control (MAC) Protocol Specification (Release 16)"; and 3GPP TSG RAN WG1 Meeting #102-e, August 17-28, 2020, RAN1 Chair's Notes. The standards and documents listed above are hereby expressly incorporated by reference in their entirety.

[0035] Figure 1 1 shows a multiple access wireless communication system according to an embodiment of the present invention. An access network 100 (AN) includes multiple antenna groups, one antenna group includes 104 and 106, another antenna group includes 108 and 110, and another antenna group includes 112 and 114. Figure 1In the figure, only two antennas are shown for each antenna group, however, each antenna group may utilize more or fewer antennas. Access terminal 116 (access terminal, AT) 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 access terminal 116 via reverse link 118. Access terminal (access terminal, AT) 122 communicates with antennas 106 and 108, where antennas 106 and 108 transmit information to access terminal (access terminal, AT) 122 via forward link 126 and receive information from access terminal (access terminal, 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.

[0036] Each group of antennas and / or the area in which they are 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.

[0037] 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 may generate less interference to access terminals in neighboring cells than an access network that transmits to all of its access terminals via a single antenna.

[0038] An access network (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, evolved Node B (eNB), or some other term. An access terminal (AT) may also be referred to as user equipment (UE), a wireless communication device, a terminal, an access terminal, or some other term.

[0039] Figure 22 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 plurality of data streams is provided from a data source 212 to a transmit (TX) data processor 214.

[0040] 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.

[0041] 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 (i.e., 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.

[0042] 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). The TX MIMO processor 220 then converts the N T The modulation symbol stream is provided to N T 1. Transmitters (TMTRs) 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.

[0043] Each transmitter 222 receives and processes a respective symbol stream to provide one or more analog signals, and further conditions (eg, amplifies, filters, and up-converts) the analog signals to provide a modulated signal suitable for transmission via a MIMO channel. T The antennas 224a to 224t transmit the N signals from the transmitters 222a to 222t. T a modulated signal.

[0044] At the receiver system 250, N RThe 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.

[0045] 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.

[0046] 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.

[0047] The reverse link message may include various types of information about 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 plurality 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.

[0048] 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.

[0049] 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, the communication device 300 in the wireless communication system can be used to implement Figure 1 UE (or AT) 116 and 122 in or Figure 1 Base station (or AN) in

[0050] 100, 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 via the CPU 308, thereby controlling the operation of the communication device 300. The communication device 300 may receive a signal input by a user via the input device 302 (for example, a keyboard or a keypad), and may output images and sounds via the output device 304 (for example, a monitor or a speaker). The transceiver 314 is used to receive and transmit wireless signals, thereby passing the received signal to the control circuit 306 and wirelessly outputting the signal generated by the control circuit 306. The communication device 300 in the wireless communication system may also be used to implement Figure 1 AN100 in.

[0051] 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.

[0052] 3GPP RP-202024 specifies the adjustments and goals for the work items regarding further enhancements to Multiple Input Multiple Output (MIMO) for NR as follows:

[0053] 3 Adjustment

[0054] Third, channels other than PDSCH can benefit from multi-TRP transmission (and multi-panel reception), which also includes multi-TRP for inter-cell operation. This includes some new use cases for multi-TRP, such as UL dense deployment within macro cells and / or heterogeneous network type deployment scenarios. Fourth, due to the use of SRS for various scenarios, SRS can and should be further enhanced at least for capacity and coverage.

[0055] 4. Goals

[0056] 4.1 Objectives of SI or core WI or test WI

[0057] The work item aims to specify further enhancements to NR MIMO identification. The detailed objectives are as follows:

[0058] - Extended specification support for [RAN1]

[0059] Enhanced support for multi-TRP deployment, for both FR1 and FR2:

[0060] a. Identify and specify features to improve PDSCH using multiple TRPs and / or multiple panels

[0061] Reliability and stability of channels other than PDCCH (i.e., PDCCH, PUSCH, and PUCCH), with Rel.16 reliability features as the baseline

[0062] 3GPP TS 38.212 V16.3.0 describes the downlink transport channel and downlink control information for scheduling the physical downlink shared channel as follows:

[0063] 7.3.1.2 DCI format for PDSCH scheduling

[0064] 7.3.1.2.1 Format 1_0

[0065] DCI format 1_0 is used for scheduling of PDSCH in one DL cell.

[0066] The following information is transmitted by means of DCI format 1_0 with CRC scrambled by C-RNTI or CS-RNTI or MCS-C-RNTI:

[0067] -DCI format identifier - 1 bit

[0068] - The value of this bit field is always set to 1, indicating the DL DCI format

[0069] - Frequency Domain Resource Allocation - bits, of which Given by clause 7.3.1.0

[0070] If the CRC of DCI format 1_0 is scrambled by C-RNTI and the "Frequency Domain Resource Allocation" field is all ones, then DCI format 1_0 is used for random access procedure initiated by PDCCH order, with all remaining fields set as follows:

[0071] - Random access preamble index

[0072] -UL / SUL designator

[0073] -SS / PBCH index

[0074] -PRACH mask index

[0075] - Reserved bits

[0076] Otherwise, set all remaining fields as follows:

[0077] - Time domain resource allocation - 4 bits, as defined in clause 5.1.2.1 of [6, TS 38.214]

[0078] - VRB to PRB mapping - 1 bit, according to Table 7.3.1.2.2-5

[0079] - Modulation and coding scheme - 5 bits, as defined in clause 5.1.3 of [6, TS 38.214]

[0080] - New data indicator - 1 bit

[0081] - Redundancy version - 2 bits, as defined in Table 7.3.1.1.1-2

[0082] -HARQ process number - 4 bits

[0083] - PUCCH resource indicator - 3 bits, as defined in clause 9.2.3 of [5, TS 38.213]

[0084] -PDSCH to HARQ_feedback timing indicator - 3 bits, as defined in clause 9.2.3 of [5, TS 38.213]

[0085] 7.3.1.2.2 Format 1_1

[0086] DCI format 1_1 is used to schedule PDSCH in one cell.

[0087] The following information is transmitted by means of DCI format 1_1 with CRC scrambled by C-RNTI or CS-RNTI or MCS-C-RNTI:

[0088] -DCI format identifier - 1 bit

[0089] - The value of this bit field is always set to 1, indicating the DL DCI format

[0090] - Carrier indicator - 0 or 3 bits, as defined in clause 10.1 of [5, TS 38.213].

[0091] -Bandwidth section indicator

[0092] - Frequency domain resource allocation

[0093] - Time Domain Resource Allocation - 0, 1, 2, 3 or 4 bits, as defined in clause 5.1.2.1 of [6, TS 38.214]. The bit width used for this field is determined as bits, where I is the number of entries in the higher layer parameter pdsch-TimeDomainAllocationList if the higher layer parameter has been configured; otherwise I is the number of entries in the default table.

[0094] For transport block 1:

[0095] - Modulation and coding scheme - 5 bits, as defined in clause 5.1.3.1 of [6, TS 38.214]

[0096] - New data indicator - 1 bit

[0097] - Redundancy version - 2 bits, as defined in Table 7.3.1.1.1-2

[0098] For transport block 2 (only present when maxNrofCodeWordsScheduledByDCI is equal to 2):

[0099] - Modulation and coding scheme - 5 bits, as defined in clause 5.1.3.1 of [6, TS 38.214]

[0100] - New data indicator - 1 bit

[0101] - Redundancy version - 2 bits, as defined in Table 7.3.1.1.1-2

[0102] -HARQ process number - 4 bits

[0103] - Downlink allocation index

[0104] - PUCCH resource indicator - 3 bits, as defined in clause 9.2.3 of [5, TS 38.213]

[0105] -PDSCH to HARQ_feedback timing indicator - 0, 1, 2 or 3 bits, as defined in clause 9.2.3 of [5, TS38.213]. The bit width used for this field is determined as bits, where I is the number of entries in the higher layer parameter dl-DataToUL-ACK.

[0106] - Antenna Port - 4, 5 or 6 bits, as defined by Tables 7.3.1.2.2-1 / 2 / 3 / 4 and Tables 7.3.1.2.2-1A / 2A / 3A / 4A, where the number of CDM groups without data of values ​​1, 2 and 3 refers to CDM groups {0}, {0,1} and {0,1,2}, respectively. Antenna Port {p 0 ,...,p υ-1} Shall be determined according to the ordering of DMRS ports given by Table 7.3.1.2.2-1 / 2 / 3 / 4 or Table 7.3.1.2.2-1A / 2A / 3A / 4A. When the UE receives an activation command that maps at least one code point of the DCI field 'Transmission Configuration Indication' to two TCI states, the UE shall use Table 7.3.1.2.2-1A / 2A / 3A / 4A; otherwise, it shall use Table 7.3.1.2.2-1 / 2 / 3 / 4. When two TCI states are indicated in the code point of the DCI field 'Transmission Configuration Indication' [and subject to UE capabilities], the UE may receive entries with DMRS ports equal to 1000, 1002, 1003.

[0107] -Transmission Configuration Indication - 0 bits if the higher layer parameter tci-PresentInDCI is not enabled; otherwise 3 bits as defined in clause 5.1.5 of [6, TS 38.214].

[0108] If DCI format 1_1 is monitored in multiple search spaces associated with multiple CORESETs in a BWP for scheduling the same serving cell, zeros should be appended until the payload size of DCI format 1_1 monitored in the multiple search spaces is equal to the maximum payload size of DCI format 1_1 monitored in the multiple search spaces.

[0109] 7.3.1.2.3 Format 1_2

[0110] DCI format 1_2 is used to schedule PDSCH in a cell.

[0111] The following information is transmitted by means of DCI format 1_2 with CRC scrambled by C-RNTI or CS-RNTI or MCS-C-RNTI:

[0112] -DCI format identifier - 1 bit

[0113] - The value of this bit field is always set to 1, indicating the DL DCI format.

[0114] - Carrier indicator - 0, 1, 2 or 3 bits, determined by the higher layer parameter carrierIndicatorSizeForDCI-Format1-2, as defined in clause 10.1 of [5, TS 38.213].

[0115] -Bandwidth section indicator

[0116] - Frequency domain resource allocation

[0117] - Time Domain Resource Allocation - 0, 1, 2, 3 or 4 bits, as defined in clause 5.1.2.1 of [6, TS 38.214]. The bit width used for this field is determined as bits, where I is the number of entries in the higher layer parameter pdsch-TimeDomainAllocationListForDCI-Format1-2 when the higher layer parameter is configured, or I is the number of entries in the higher layer parameter pdsch-TimeDomainAllocationList when the higher layer parameter pdsch-TimeDomainAllocationList is configured when the higher layer parameter pdsch-TimeDomainAllocationListForDCI-Format1-2 is not configured; otherwise I is the number of entries in the preset table.

[0118] - Modulation and coding scheme - 5 bits, as defined in clause 5.1.3.1 of [6, TS 38.214]

[0119] - New data indicator - 1 bit

[0120] - Redundant version

[0121] -HARQ process number - 0, 1, 2, 3 or 4 bits, determined by the higher layer parameter harq-ProcessNumberSizeForDCI-Format1-2

[0122] - Downlink Allocation Index - 0, 1, 2 or 4 bits

[0123] -PUCCH resource indicator - 0 or 1 or 2 or 3 bits, determined by the higher layer parameter numberOfBitsForPUCCH-ResourceIndicatorForDCI-Format1-2

[0124] -PDSCH to HARQ_feedback timing indicator - 0, 1, 2 or 3 bits, as defined in clause 9.2.3 of [5, TS 38.213]. The bit width used for this field is determined as bits, where I is the number of entries in the higher layer parameter dl-DataToUL-ACK-ForDCI-Format1-2.

[0125] - Antenna ports

[0126] -Transmission Configuration Indication - 0 bit if higher layer parameter tci-PresentForDCI-Format1-2 is not enabled; otherwise 1 or 2 or 3 bits determined by higher layer parameter tci-PresentForDCI-Format1-2, as defined in clause 5.1.5 of [6, TS 38.214].

[0127] If DCI format 1_2 is monitored in multiple search spaces associated with multiple CORESETs in a BWP for scheduling the same serving cell, zeros should be appended until the payload size of DCI format 1_2 monitored in the multiple search spaces is equal to the maximum payload size of DCI format 1_2 monitored in the multiple search spaces.

[0128] [Table 7.3.1.2.3-1 of 3GPP TS 38.212 V16.3.0 entitled "Redundancy Version" is reproduced as Figure 5 ]

[0129] 3GPP TS 38.213 V16.2.0 specifies the physical layer for control, which includes the random access procedure, cell search procedure and physical downlink control channel (PDCCH) monitoring as follows:

[0130] 7.7 Power Headroom Report

[0131] The following are the types of UE power headroom reports: Type 1 UE power headroom PH valid on active UL BWP b of carrier f of serving cell c for PUSCH transmission opportunity i. Type 3 UE power headroom PH valid on active UL BWP b of carrier f of serving cell c for SRS transmission opportunity i.

[0132] The UE determines whether the power headroom report for the activated serving cell [11, TS 38.321] is based on the actual transmission or a reference format, wherein the reference format is based on higher layer signaling of the configured grant and periodic / semi-static sounding reference signal transmission and downlink control information received by the UE before and including a PDCCH listening opportunity, wherein the UE detects the first DCI format for the initial transmission of the scheduled transport block, because if the power headroom report is reported on the PUSCH triggered by the first DCI format, then the power headroom report is triggered.

[0133] Otherwise, the UE determines whether the power headroom report is based on the actual transmission or a reference format based on higher layer signaling of the configured grant and periodic / semi-static sounding reference signal transmissions and the first uplink symbol of the configured PUSCH transmission minus T' proc,2 =T proc,2 The downlink control information previously received by the UE, assuming that d 2,1 =1,d 2,2 = 0 Determine T according to [6, TS 38.214] proc,2 , and wherein if the power headroom report is reported on PUSCH using the configured grant, then μ DLThe subcarrier spacing corresponding to the active downlink BWP for the scheduled cell for the configured grant.

[0134] 7.7.1 Type 1 PH Report

[0135] If the UE determines that the Type 1 power headroom report for the activated serving cell is based on actual PUSCH transmissions, then for PUSCH transmission opportunity i on active UL BWP b of carrier f of serving cell c, the UE calculates the Type 1 power headroom report as

[0136]

[0137] [dB]

[0138] Where P CMAX,f,c (i) P O_PUSCH,b,f,c (j) α b,f,c (j), PL b,f,c (q d ), Δ TF,b,f,c (i) and f b,f,c (i,l) is defined in Clause 7.1.1.

[0139] If the UE is configured with multiple cells for PUSCH transmission, the serving cell c 1 The carrier f 1 Activities of ULBWP b 1 SCS configuration on μ 1 Less than in the serving cell c 2 The carrier f 2 Activities of UL BWP b 2 SCS configuration on μ 2 , and if the UE is in communication with the active UL BWP b 2 Active UL BWP b with multiple time slots overlapping 1 If the UE provides Type 1 power headroom reporting in PUSCH transmissions in the timeslots on the UE, then the UE has active UL BWP b 2 Multiple time slots with active UL BWP b 1 The Type 1 power headroom report for the first PUSCH is provided on the first time slot that completely overlaps with the time slots on PUSCH (if any).

[0140] If the UE is configured with multiple cells for PUSCH transmission, the serving cell c 1 The carrier f 1 Activities of ULBWP b 1 On and in the serving cell c 2 The carrier f 2 Activities of UL BWP b 2, and if the UE is in active UL BWP b 1 Type 1 power headroom reporting in PUSCH transmissions in the timeslots on the 1000 Mbps, then the UE shall provide ... the timeslots on the 1000 Mbps, then the UE shall provide Type 1 power headroom reporting in the timeslots on the 1000 Mbps, 1 Active UL BWP b that overlaps the time slot on 2 The first PUSCH type 1 power headroom report (if any) is provided on the timeslot on PUSCH.

[0141] If the UE is configured with multiple cells for PUSCH transmission and provides Type 1 power headroom reporting in a PUSCH transmission with PUSCH repetition type B, the PUSCH repetition type has a span across the active UL BWP b 1 multiple time slots on the active UL BWP b 2 If the nominal repetition overlaps one or more time slots on the active UL BWP b 2 One or more time slots on the same UL BWP b 1 A Type 1 power headroom report for the first PUSCH is provided on a first time slot overlapping a nominally repeated plurality of time slots on PUSCH (if any).

[0142] If the UE is configured with multiple cells for PUSCH transmission, the UE does not consider calculating the type 1 power headroom report in the first PUSCH transmission contained in the serving cell c. 1 The carrier f 1 Activities of UL BWP b 1 Initial transmission of the transport block in the serving cell c 2 The carrier f 2 Activities of UL BWP b 2 A second PUSCH transmission overlaps with a first PUSCH transmission if

[0143] - scheduling a second PUSCH transmission by a DCI format in a PDCCH received in a second PDCCH monitoring occasion, and

[0144] - The second PDCCH monitoring occasion is after the first PDCCH monitoring occasion, where the UE detects the earliest DCI format that schedules the initial transmission of a transport block after triggering the power headroom report

[0145] or

[0146] - The second PUSCH transmission is the first uplink symbol of the first PUSCH transmission minus T' proc,2 =T proc,2 After that, assuming that d 2,1 =1,d 2,2= 0 Determine T according to [6, TS 38.214] proc,2 , and wherein if the first PUSCH transmission after triggering the power headroom report is on the configured grant, then μ DL The subcarrier spacing corresponding to the active downlink BWP for the scheduled cell for the configured grant.

[0147] If the UE determines that the Type 1 power headroom report for the activated serving cell is based on a reference PUSCH transmission, then for PUSCH transmission opportunity i on the active UL BWP b of carrier f of serving cell c, the UE calculates the Type 1 power headroom report as

[0148]

[0149] in Calculate by assuming that MPR = 0 dB, A-MPR = 0 dB, and P-MPR = 0 dB. ΔT C =0dB. MPR, A-MPR, P-MPR and ΔT C Defined in [8-1, TS 38.101-1], [8-2, TS 38.101-2] and [8-3, TS 38.101-3]. The remaining parameters are defined in clause 7.1.1, where P O_PUSCH,b,f,c (j) and α b,f,c (j) Use P O_NOMINAL_PUSCH,f,c (0) and p0-PUSCH-AlphaSetId = 0, PL b,f,c (q d ) is obtained using pusch-PathlossReferenceRS-Id=0 and l=0.

[0150] 10UE procedure for receiving control information

[0151] 10.1 UE Procedure for Determining Physical Downlink Control Channel Allocation

[0152] A set of PDCCH candidates for UE monitoring is defined according to a PDCCH search space set. A search space set can be a CSS set or a USS set. The UE monitors PDCCH candidates in one or more of the following search space sets:

[0153] - Type0-PDCCH CSS set configured by pdcch-ConfigSIB1 in MIB or by searchSpaceSIB1 in PDCCH-ConfigCommon or by searchSpaceZero in PDCCH-ConfigCommon for DCI format with SI-RNTI scrambled CRC on the primary cell of the MCG

[0154] - Type0A-PDCCH CSS set configured by searchSpaceOtherSystemInformation in PDCCH-ConfigCommon for DCI format with SI-RNTI scrambled CRC on the primary cell of the MCG

[0155] - Type1-PDCCH CSS set configured by ra-SearchSpace in PDCCH-ConfigCommon for DCI format with CRC scrambled by RA-RNTI, MsgB-RNTI or TC-RNTI on the primary cell

[0156] - Type2-PDCCH CSS set configured by pagingSearchSpace in PDCCH-ConfigCommon for DCI format with P-RNTI scrambled CRC on the primary cell of the MCG

[0157] - for DCI formats with CRC scrambled by INT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI or CI-RNTI and Type3-PDCCH CSS set configured by SearchSpace in PDCCH-Config for primary cell, C-RNTI, MCS-C-RNTI, CS-RNTI or PS-RNTI only, where searchSpaceType=common, and

[0158] -The USS set configured by SearchSpace in PDCCH-Config for DCI format with CRC scrambled by C-RNTI, MCS-C-RNTI, SP-CSI-RNTI, CS-RNTI, SL-RNTI, SL-CS-RNTI or SL-L-CS-RNTI, where searchSpaceType=ue-Specific.

[0159] [Table 10.1-1 of 3GPP TS 38.213 V16.2.0 entitled "CCE aggregation levels for CSS sets configured by searchSpaceSIB1 and maximum number of PDCCH candidates per CCE aggregation level" is reproduced as Figure 6 ]

[0160] For each DL BWP configured for the UE in the serving cell, the UE may be provided with

[0161] - P ≤ 3 CORESETs, if no CORESETPoolIndex is provided, or if a CORESETPoolIndex is provided and its value is the same for all CORESETs

[0162] - P ≤ 5 CORESETs, if no CORESETPoolIndex is provided for the first CORESET, or if a CORESETPoolIndex is provided for the first CORESET and has the value 0, and is provided for the second CORESET and has the value 1

[0163] For each CORESET, the ControlResourceSet provides the UE with the following:

[0164] - The CORESET index p, via controlResourceSetId, where

[0165] - 0 < p < 12, if no CORESETPoolIndex is provided, or if a CORESETPoolIndex is provided and its value is the same for all CORESETs;

[0166] - 0 < p < 16, if no CORESETPoolIndex is provided for the first CORESET, or if a CORESETPoolIndex is provided for the first CORESET and has the value 0, and is provided for the second CORESET and has the value 1;

[0167] - The number of consecutive symbols provided by duration;

[0168] - A set of resource blocks provided by frequencyDomainResources;

[0169] - The antenna port quasi - co - location from a set of antenna port quasi - co - locations provided by TCI - State, which indicates the quasi - co - location information of the DM - RS antenna port for PDCCH reception in the corresponding CORESET;

[0170] - An indication of the presence or absence of a transmission configuration indication (TCI) field for DCI formats other than DCI format 1_0, via tci - PresentInDCI or tci - PresentInDCI - ForDCIFormat1_2 - r16, where the DCI format schedules PDSCH reception or indicates SPS PDSCH release and is transmitted by the PDCCH in CORESETp.

[0171] For each DL BWP configured for the UE in the serving cell, the higher layers provide the UE with S ≤ 10 search space sets, where for each search space set out of the S search space sets, the UE is provided with the following by SearchSpace:

[0172] - Search space set index s, 0 < s < 40, via searchSpaceId

[0173] - Association between search space set s and CORESETp, via controlResourceSetId

[0174] - k s PDCCH monitoring periodicity of slots and o s PDCCH monitoring offset of slots, via monitoringSlotPeriodicityAndOffset

[0175] - PDCCH monitoring pattern within a slot provided by monitoringSymbolsWithinSlot, which indicates the first symbol of the CORESET within the slot for PDCCH monitoring

[0176] - T s <k s Duration of slots, indicating the number of slots during which search space set s exists, via duration

[0177] - Number of PDCCH candidates per CCE aggregation level provided by aggregationLevel1, aggregationLevel2, aggregationLevel4, aggregationLevel8, and aggregationLevel16 for CCE aggregation levels 1, 2, 4, 8, and 16 respectively per CCE aggregation level

[0178] - Indication that search space set s is a CSS set or a USS set provided by searchSpaceType

[0179] - If search space set s is a CSS set

[0180] - Indication for listening to PDCCH candidates for DCI format 0_0 and DCI format 1_0 provided by dci-Format0-0-AndFormat1-0

[0181] -Indication provided by dci-Format2-0 to monitor one or two PDCCH candidates for DCI format 2_0 and the corresponding CCE aggregation level, or to monitor one PDCCH candidate per RB set when the UE provides freqMonitorLocations-r16 for the search space set -Indication provided by dci-Format2-4 to monitor PDCCH candidates for DCI format 2_4

[0182] - If the search space set s is a USS set, the indication of monitoring PDCCH candidates for DCI format 0_0 and DCI format 1_0 or for DCI format 0_1 ​​and DCI format 1_1 provided by dci-Formats, or the indication of monitoring PDCCH candidates for DCI format 0_0 and DCI format 1_0 or for DCI format 0_1 ​​and DCI format 1_1 or for DCI format 0_2 and DCI format 1_2 provided by dci-Formats-Rel16 or when the UE indicates the corresponding capability for DCI format 0_1, DCI format 1_1, DCI format 0_2 and DCI format 1_2 or for DCI format 3_0 or for DCI format 3_1 or for DCI format 3_0 and DCI format 3_1

[0183] If monitoringSymbolsWithinSlot instructs the UE to monitor PDCCH in a subset with up to three consecutive symbols that are the same in each time slot, where the UE monitors PDCCH for all search space sets, then if the subset contains at least one symbol after the third symbol, the UE does not expect to be configured to use a PDCCH SCS other than 15 kHz.

[0184] The UE determines the PDCCH monitoring timing on the active DLBWP according to the PDCCH monitoring periodicity, PDCCH monitoring offset and PDCCH monitoring mode in the time slot. For the search space set s, the UE determines if Then in the number [4, TS 38.211] in the time slot numbered n f There is a PDCCH monitoring opportunity in the frame of . The UE searches for the search space set s for the time slot starting at T s consecutive time slots to monitor PDCCH candidates and not for the search space set s for the next k s -T s The PDCCH candidates are monitored in consecutive time slots.

[0185] The USS at the CCE aggregation level L∈{1,2,4,8,16} is defined by the set of PDCCH candidates for the CCE.

[0186] For the search space set s associated with CORESETp, for the search space set s corresponding to the carrier indicator field value n CI Active DL BWP of the serving cell in time slot The PDCCH candidates corresponding to the search space set in The CCE index for aggregation level L is given by

[0187]

[0188] in

[0189] For any CSS,

[0190] For USS, Y p,-1 =n RNTI ≠0; A p =39827, for pmod3 = 0; A p =39829, for pmod3 = 1; A p =39839, for pmod3=2; and D=65537;

[0191] i=0,…,L-1;

[0192] N CCE,p is the number of CCEs in CORESETp and per RB set (if any), from 0 to N CCE,p -1 number;

[0193] n CI The value of the carrier indicator field if the UE is configured with the carrier indicator field for the serving cell on which it monitors PDCCH via CrossCarrierSchedulingConfig; otherwise, for any CSS, n CI =0;

[0194] in The UE is configured to CI The number of PDCCH candidates monitored by the aggregation level L of the search space set s of the serving cell;

[0195] For any CSS,

[0196] For USS, is the CCE aggregation level L for the search space set s over all configured n CI Within value The maximum value of

[0197] For nRNTI The RNTI value is C-RNTI.

[0198] 11.2A Cancellation of Instructions

[0199] If the UE provides UplinkCancellation, the UE provides a search space set for monitoring the first PDCCH candidate in one or more serving cells with a search space set for detecting DCI format 2_4 [5, TS 38.212]. CI The CCE aggregation level of the CCEs and the CI-RNTI provided by ci-RNTI, as described in clause 10.1. UplinkCancellation additionally provides to the UE - the set of serving cells provided by ci-ConfigurationPerServingCell, which contains the set of serving cell indices and the set of corresponding positions of the fields in DCI format 2_4 provided by positionInDCI

[0200] - Multiple fields in DCI format 2_4 for each serving cell for a SUL carrier provided by positionInDCI-forSUL, if the serving cell is configured with a SUL carrier

[0201] - Information payload size for DCI format 2_4 provided by dci-PayloadSize-forCI

[0202] -Indication of the time-frequency resource provided by timeFrequencyRegion

[0203] For a serving cell in DCI format 2_4 with associated fields, this field represents the following: CI The number of bits provided by CI-PayloadSize

[0204] -B CI The number of PRBs provided by frequencyRegionforCI in timeFrequencyRegion

[0205] -T CI is the number of symbols, excluding symbols used to receive SS / PBCH blocks and DL symbols indicated by tdd-UL-DL-ConfigurationCommon, according to the number of symbols

[0206] - provided by timeDurationforCI in timeFrequencyRegion, if the PDCCH monitoring periodicity of the search space set with DCI format 2_4 is one slot and there is more than one PDCCH monitoring opportunity in the slot, or

[0207] - Otherwise, it is equal to the PDCCH monitoring periodicity.

[0208] -G CI The timeGranularityforCI in timeFrequencyRegion is used for T CI The number of segments of a symbol

[0209] From N CI The MSB of the ones digit is G CI The units bit set has G CI A one-to-one mapping of groups of symbols, where the first Each of the groups contains symbols and remaining Each of the groups contains The UE determines the symbol duration of the SCS configuration regarding the active DL BWP for which the UE monitors the PDCCH for DCI format 2_4 detection.

[0210] For a set of symbols, the N from the MSB of each bit set BI =N CI / G CI The ones digit has N BI One-to-one mapping of PRB groups, where the first Each of the groups contains PRBs and remaining Each of the groups contains PRBs. UE offsets RBs according to the instructions start The frequencyRegionforCI determines the first PRB index as And the number of consecutive RBs is determined as B CI =L RB , and according to [6, TS 38.214] and according to the SCS configuration indication of the active DL BWP for the UE listening to the PDCCH for DCI format 2_4 detection. carrier The offsetToCarrier in the FrequencyInfoUL-SIB or FrequencyInfoUL will be of length L RB Determined to be RIV.

[0211] The indication of DCI format 2_4 for the serving cell is applicable to PUSCH transmission or SRS transmission on the serving cell. If PUSCH transmission or SRS transmission is scheduled by a DCI format, the indication of DCI format 2_4 is applicable to PUSCH transmission or SRS transmission only when the last symbol of the PDCCH reception providing the DCI format is earlier than the first symbol of the PDCCH reception providing the DCI format 2_4. For the serving cell, the UE determines T CI The first symbol of the symbols is the end of the PDCCH reception of DCI format 2_4 detected by the UE at T′ proc,2 The first symbol after T′ proc,2 Assumptions For PUSCH processing capability 2 [6, TS 38.214] from T proc,2 Get, where d offset Provided by delta_offset, μ is the minimum SCS configuration μ between the SCS configuration of PDCCH and the scs-SpecificCarrierList of FrequencyInfoUL or FrequencyInfoUL-SIB UL The UE does not expect to assume that d 2,1 =0 is T proc,2 PUSCH transmission or SRS transmission is canceled after the UE detects the last symbol of CORESET of DCI format 2_4 before the corresponding symbol.

[0212] A UE detecting DCI format 2_4 for a serving cell cancels a PUSCH transmission when the PUSCH transmission has repetitions (as determined in clauses 9 and 9.2.5 or in clause 6.1 of [6, TS 38.214]) or an actual repetition of a PUSCH transmission [6, TS 38.214], or cancels an SRS transmission on the serving cell, respectively, in the following cases,

[0213] - transmitted as PUSCH with priority 0, if the UE provides applicability for CI,

[0214] -From T CI A set of symbols has a corresponding set of N symbols in DCI format 2_4 BI At least one of the bits has the value '1' and contains a symbol of a (repetition of) a PUSCH transmission or a SRS transmission, and

[0215] -From B CI a set of PRBs having a corresponding bit value of '1' in a bit set corresponding to a set of symbols in DCI format 2_4 and including PRBs for (repetitions of) a PUSCH transmission or a SRS transmission,

[0216] in

[0217] - the cancellation of (repetition of) a PUSCH transmission comprises all symbols of the earliest symbol of (repetition of) a PUSCH transmission from a set of symbols in DCI format 2_4 having a corresponding bit value of '1';

[0218] - Cancellation of SRS transmission includes only symbols in one or more groups of symbols in DCI format 2_4 having corresponding bit value '1'.

[0219] If the UE cancels PUSCH transmission or SRS transmission based on the indication through DCI format 2_4, then the UE does not expect to be scheduled by the second DCI format to transmit PUSCH or SRS via symbols including symbols of the canceled PUSCH transmission or SRS transmission, where the last symbol received by the PDCCH providing the second DCI format is later than the first symbol received by the PDCCH providing DCI format 2_4.

[0220] 3GPP TS 38.214 V16.4.0 specifies the UE procedure for receiving a physical downlink shared channel as follows:

[0221] 5.1 UE procedures for receiving the physical downlink shared channel

[0222] If the PDSCHs partially or completely overlap in time, then the UE is not expected to decode the PDSCH scheduled by the PDCCH with C-RNTI, CS-RNTI or MCS-C-RNTI in the serving cell and one or more PDSCHs required for reception according to this clause that are not transmitted with a corresponding PDCCH in the same serving cell, unless the PDCCH scheduling the PDSCH ends at least 14 symbols before the earliest start symbol of the PDSCH not transmitted with a corresponding PDCCH, where the symbol duration is based on the minimum basis parameter between the scheduling PDCCH and the PDSCH, in which case the UE should decode the PDSCH scheduled by the PDCCH.

[0223] If a UE is configured by a higher layer parameter PDCCH-Config containing two different values ​​of coresetPoolIndex in the ControlResourceSet, then the UE can be expected to receive multiple PDCCHs scheduling PDSCHs that fully overlap / partially overlap / non-overlap in the time and frequency domains. The UE can expect to receive PDSCHs that fully overlap / partially overlap in time only when the PDCCH scheduling the two PDSCHs is associated with different ControlResourceSets with different values ​​of coresetPoolIndex. For ControlResourceSets without coresetPoolIndex, the UE can assume that the ControlResourceSet is assigned a coresetPoolIndex of 0. When the UE is scheduled with PDSCHs fully overlapping / partially overlapping / non-overlapping in the time and frequency domains, the complete scheduling information for receiving the PDSCH is only indicated and carried by the corresponding PDCCH, and the UE is expected to be scheduled with the same active BWP and the same SCS. When the UE is scheduled with PDSCHs fully overlapping / partially overlapping in the time and frequency domains, up to two codewords can be used to schedule the UE simultaneously.

[0224] If the PDCCH scheduling the corresponding PDSCH is associated with the same or different ControlResourceSet with the same value of coresetPoolIndex, the UE procedure for receiving the PDSCH after detecting the PDCCH follows clause 5.1.

[0225] 3GPP TSG RAN WG1 Meeting #102-e (August 17-28, 2020) RAN1 Chairman's Notes lists the following agreements related to further enhancements to MIMO for NR:

[0226] agreement

[0227] To implement PDCCH transmission with two TCI states, the pros and cons of the following alternatives are studied:

[0228] ●Alternative 1: One CORESET with two active TCI states

[0229] ●Alternative 2: One SS set associated with two different CORESETs

[0230] ●Alternative 3: Two SS sets associated with the corresponding CORESET

[0231] ● At least the following aspects may be considered: multiplexing scheme (TDM / FDM / SFN / combined scheme), BD / CCE limitation, overload, CCE-REG mapping, PDCCH candidate CCE (ie, hash function), CORESET / SS set configuration, and other program impacts.

[0232] agreement

[0233] For non-SFN based mTRP PDCCH reliability enhancement, the following options are studied:

[0234] ● Option 1 (no repetition): One coding / rate matching for PDCCH with two TCI states

[0235] • Option 2 (repetition): Coding / rate matching is based on one repetition, and the same coded bits are repeated for another repetition. Each repetition has the same number of CCEs and coded bits, and corresponds to the same DCI payload.

[0236] ○Study both intra-slot repetition and inter-slot repetition

[0237] • Option 3 (Multiple Opportunities): Schedule the same PDSCH / PUSCH / RS / TB etc. or separate DCIs that produce the same result.

[0238] ○ Study the two cases of DCI in the same time slot and DCI in different time slots

[0239] agreement

[0240] For mTRP PDCCH reliability enhancement, the following multiplexing schemes are studied

[0241] ● TDM: Two sets of symbols of a transmitted PDCCH / two non-overlapping (in time) transmitted PDCCH repetitions / multiple opportunities (in time) non-overlapping transmitted PDCCHs are associated with different TCI states

[0242] ○ Aspects and regulatory impacts related to the intra-time slot vs. inter-time slot issues being discussed

[0243] ● FDM: Transmitted PDCCH / Two non-overlapping (in frequency) transmitted PDCCH repetitions / Multiple opportunities (in frequency) non-overlapping REG bundling of transmitted PDCCH / Two sets of CCEs are associated with different TCI states

[0244] ●SFN: PDCCH DMRS is associated with two TCI states in all REGs / CCEs of PDCCH

[0245] ○ Note: This solution is dependent on AI 2d (HST-SFN)

[0246] agreement

[0247] For alternatives 1 to 2 / 1 to 3 / 2 / 3, study the following

[0248] ● Case 1: Two (or more) PDCCH candidates are explicitly linked together (UE knows the link before decoding)

[0249] ● Case 2: Two (or more) PDCCH candidates are not explicitly linked together (UE is not aware of the linking before decoding)

[0250] agreement

[0251] For PDCCH reliability enhancement using non-SFN schemes, at least Option 2 + Case 1 are supported.

[0252] ● The maximum number of linked PDCCH candidates is two

[0253] One or more of the following terms may be used below:

[0254] ● BS : A network central unit or network node in a NR that controls one or more TRPs associated with one or more cells. Communication between the BS and the TRPs is via fronthaul. The BS may also be referred to as a central unit (CU), eNB, gNB, or NodeB.

[0255] ● TRP : A transmission reception point provides network coverage and communicates directly with the UE. A TRP may also be referred to as a distributed unit (DU) or a network node.

[0256] ● Community :A cell is composed of one or more associated TRPs, that is, the coverage of a cell is composed of the coverage of all associated TRPs. A cell is controlled by one BS. A cell can also be called a TRP group (TRP group, TRPG).

[0257] ● Service beam : A service beam for a UE is a beam generated by a network node, such as a TRP, configured to communicate with the UE, such as for transmission and / or reception.

[0258] ● Candidate beams : A candidate beam for a UE is a candidate for a serving beam. A serving beam may or may not be a candidate beam.

[0259] In NR Rel-15, beamforming techniques are adopted to conquer high power penetration in high frequency bands such as above 6 GHz. Therefore, both gNB and UE can use some transmit beams and / or receive beams to make high throughput data reliable in such high frequency bands. How to select appropriate transmit beams and / or receive beams plays an important role in NR Rel-15. Beam indication for various channels and reference signals is also well discussed and captured in the specification along with the development of NR.

[0260] However, in NR Rel-15, the beam indication for receiving downlink (DL) transmissions only considered transmissions from a single TRP and / or using panel within a duration (e.g., one timeslot or mini-slot), at least from the UE's perspective. In NR Rel-16, people and companies resumed considering DL transmissions from multiple TRPs and / or panels. For transmissions from multiple TRPs and / or panels, it may be implied that a single DL transmission may be performed by different beams from multiple TRPs and / or panels. It may also mean that the UE may receive multiple DL transmissions from multiple TRPs and / or panels within a duration (e.g., one timeslot or mini-slot). In NR Rel-16, Ultra-Reliable Low-Latency Communication (URLLC) has also been enhanced to take into account multiple TRP scenarios. Therefore, there are some Physical Downlink Shared Channel (PDSCH) repetition schemes to improve the reliability of receiving PDSCH. Some examples may be a Subscriber Data Management (SDM) repetition scheme, an FMD repetition scheme, a mini-slot based repetition scheme, and a slot based repetition scheme.

[0261] With NR Rel-17, people began to consider reliability enhancement for other channels, such as PDCCH, Physical Uplink Control Channel (PUCCH), and PUSCH. Since the PDCCH controls scheduling information for PDSCH and PUSCH, there is no doubt that the enhancement of PDCCH should be emphasized first. In order to achieve the reliability of PDCCH, one or more PDCCH repetitions in the time domain (from different TRPs) may be a method. In this method, once a link between a TRP and a UE is blocked and results in a failed PDCCH reception, there is another PDCCH repetition from the same or different TRP for successful scheduling. One or more PDCCH repetitions can provide the same scheduling results for PDSCH or PUSCH. The number of one or more PDCCH repetitions is two (two PDCCH repetitions are considered as a pair / correlation / link). In order to achieve beam diversity or soft combining gain, the UE needs to know the link of one or more PDCCH repetitions before decoding.

[0262] Once a link between a TRP and a UE is blocked and a PDCCH cannot be received, another PDCCH repetition from the same or different TRP may exist for possible reception. One or more PDCCH repetitions may provide the same scheduling results / information for PDSCH or PUSCH. The number of one or more PDCCH repetitions may be two (considering two PDCCH repetitions as a pair / correlation / link). In order to achieve beam diversity or soft combining gain, the UE may need to know the link of one or more PDCCH repetitions before decoding. The UE may provide or be configured with a correlation / link / pair of two PDCCH repetitions through a search space configuration. The network may provide a configuration when linking two search spaces. The network may provide the same number of PDCCH candidates for one or more aggregation levels (AL), the same periodicity, slot offset, the same number of consecutive slot durations, and / or the same number of listening opportunities within a slot for linking two search spaces. For linkage of two search spaces, a PDCCH candidate with an AL having a PDCCH candidate index (i in one search space) includes the same scheduling information as a PDCCH candidate with the same AL having the same PDCCH candidate index (i in another search space). In other words, the two PDCCH candidates may be an example of PDCCH repetition.

[0263] like Fig.13As shown in the exemplary embodiment shown in , the UE may be configured with a link of search space 1 and search space 2, and the configuration may be such that the number of PDCCH candidates for one or more aggregation levels (ALs), monitoring periodicity, slot offset, and number of PDCCH monitoring opportunities in a time slot may be the same. In one embodiment, the PDCCH repetition may be an intra-time slot PDCCH repetition or an inter-time slot PDCCH repetition. For example, Fig.13 As shown in , for intra-slot PDCCH repetition, the PDCCH monitoring opportunities associated with search space 1 and the PDCCH monitoring opportunities associated with search space 2 may be in the same slot. As another example, for inter-slot PDCCH repetition, the PDCCH monitoring opportunities associated with search space 1 and the PDCCH monitoring opportunities associated with search space 2 may be in different slots.

[0264] 3GPP TS 38.214 V16.3.0 specifies UE procedures for receiving PDSCH, taking into account that at least two PDSCHs partially or completely overlap in the time domain. One of the at least two PDSCHs (e.g., the first PDSCH) may be scheduled with a C-RNTI or MCS-C-RNTI and / or associated with a PDCCH, and the other of the at least two PDSCHs (e.g., the second PDSCH) may not have an associated PDCCH (e.g., an SPS PDSCH). Since the UE may not have the decoding capability for simultaneously receiving and / or decoding two PDSCHs, the current standard has restrictions on the network side to meet the expectations of the UE.

[0265] In general, the network will avoid scheduling the first PDSCH that overlaps with the second PDSCH. However, if there is a time-sensitive downlink service (e.g., URLLC-related service), the network may need to schedule the first PDSCH to rewrite the second PDSCH. Therefore, rewriting the second PDSCH may require a certain processing time for decoding on the UE side to know the update decision of the network. The processing time may be associated with PDCCH reception and / or monitoring and / or processing and / or decoding. The processing time may be 14 OFDM symbols, preferably with an SCS associated with the lower one between the scheduled PDCCH and the scheduled PDSCH. In other words, the UE decodes the first PDSCH (and does not decode the second PDSCH), provided that the PDCCH that schedules the first PDSCH ends at least 14 symbols before the second PDSCH. From the perspective of the base station (BS), the BS may need to transmit the PDCCH of the scheduled PDSCH with the cell radio network temporary identifier (Cell Radio Network Temporary Identifier, C-RNTI) earlier when the UE has a configured PDSCH without any corresponding PDCCH. Throughout the description, a BS may be a NW, or vice versa.

[0266] Regarding the above behavior of enhanced PDCCH reliability in the case of repetition in the time domain, several problems may be presented between the BS and the UE. Since it is beneficial for two linked PDCCHs with repeated PDCCHs or providing the same scheduling results, the UE will perform the same PDSCH reception behavior regardless of which one or two linked PDCCHs are successfully decoded. Therefore, for the Semi-Persistent Scheduling (SPS) PDSCH reception rewritten by the scheduled PDSCH, one or two linked PDCCHs ending at different time opportunities or with different orthogonal frequency division multiplexing (OFDM) symbols may be ambiguous for the UE to cancel the SPS PDSCH reception, and / or it may be ambiguous for the UE to receive which PDSCH. In other words, due to the different time intervals between the end OFDM symbol of the PDCCH of the two linked PDCCHs and the start OFDM symbol of the SPS PDSCH, the UE may have different understandings based on the decoding results of the two linked PDCCHs.

[0267] For example, if the BS transmits two linked PDCCH candidates for repetition to schedule a PDSCH with a C-RNTI, the UE may have ambiguity in determining the PDSCH for decoding.

[0268] For another example, if the BS transmits two linked PDCCH candidates for repetition to schedule a PDSCH with a C-RNTI, one of the linked PDCCH candidates ends 14 symbols before the start of a PDSCH without any corresponding PDCCH, and the other PDCCH candidate ends less than 14 symbols before that. When the UE decodes the PDCCH candidate that ends 14 symbols before the start of the PDSCH without any corresponding PDCCH, the UE may decode the corresponding PDSCH with the C-RNTI. However, when the UE decodes the PDCCH that ends less than 14 symbols before the PDSCH without any corresponding PDCCH, the UE may not expect to decode the PDSCH with the C-RNTI or the PDSCH without any corresponding PDCCH, resulting in inefficient resource utilization.

[0269] For another example, Figure 7 As shown in , the UE is configured to listen to the linked PDCCH 1 and PDCCH 2 for repetition. In this case, since the starting OFDM symbol of the SPS PDSCH is different from the time interval / duration between PDCCH 1 and PDCCH 2, once the scheduled PDSCH from PDCCH 1 and / or PDCCH 2 overlaps with the SPS PDSCH, it is different. The UE may force the ambiguity of whether to receive the SPS PDSCH or based on dynamic scheduling. Based on the different decoding results of PDCCH 1 and PDCCH 2, the UE may have different understandings of whether to receive or cancel the SPS PDSCH reception. In addition, the network may not be aware of the decoding results of the UE's PDCCH 1 and PDCCH 2, and may cause misalignment between the network and the UE, thereby generating unnecessary retransmissions, regardless of whether the SPS PDSCH or the scheduled PDSCH is used.

[0270] Therefore, in order to decode PDSCH with PDCCH repetition and / or receive or cancel SPS PDSCH in an efficient manner, the following concepts and / or embodiments are provided. When considering improving the reliability of transmitting and / or receiving PDCCH and the efficiency of resource utilization, this can be used at least (but not limited to) to determine the correlation or linkage between the linked PDCCH candidate and the PDSCH without any corresponding PDCCH.

[0271] First Concept

[0272] The first concept of the present invention is that the UE can decode the PDSCH based on the time domain correlation between the first PDCCH candidate and / or the second PDCCH candidate for scheduling the PDSCH with C-RNTI or MCS-C-RNTI and the PDSCH without any corresponding PDCCH. The PDSCH with C-RNTI or MCS-C-RNTI and the PDSCH without any corresponding PDCCH may overlap partially or completely in time. The first and second PDCCH candidates may be two linked PDCCH candidates. The first and second PDCCH candidates may schedule the PDSCH with C-RNTI or MCS-C-RNTI. The first and second PDCCH candidates may be transmitted in a time division multiplexing manner. The first PDCCH candidate may be determined by the PDCCH candidate that ends earlier in time among the two linked PDCCH candidates. The second PDCCH candidate may be determined by the PDCCH candidate that ends later in time among the two linked PDCCH candidates. The UE may decode the PDSCH with C-RNTI or MCS-C-RNTI if the first PDCCH candidate ends at least 14 symbols before the start of the PDSCH without any corresponding PDCCH.

[0273] As an example of the first concept, the UE may monitor the first and second PDCCH candidates that schedule a PDSCH with a C-RNTI or MCS-C-RNTI. The PDSCH with a C-RNTI or MCS-C-RNTI may overlap in time with a PDSCH without any corresponding PDCCH. The UE may decode the PDSCH with a C-RNTI or MCS-C-RNTI if the second PDCCH candidate ends at least 14 symbols before the start of the PDSCH without any corresponding PDCCH. The second PDCCH candidate may end later than the first PDCCH candidate.

[0274] In one embodiment, the UE may monitor multiple PDCCH candidates transmitted by the BS. The multiple PDCCHs may include a first PDCCH candidate and a second PDCCH candidate. The first PDCCH candidate may be scrambled using a C-RNTI or an MCS-C-RNTI. The second PDCCH candidate may be scrambled using a C-RNTI or an MCS-C-RNTI. The first and second PDCCH candidates may be linked PDCCH candidates. The first and second PDCCH candidates may schedule the first PDSCH. The first PDCCH candidate may end before the second PDCCH candidate in time. The first PDSCH and the second PDSCH may partially or completely overlap in time. The second PDSCH may be a semi-statically scheduled PDSCH without any corresponding PDCCH.

[0275] In one embodiment, if the first condition is met, the UE may decode the first PDSCH. If the first condition is met, the UE may not decode the second PDSCH. The first condition may be that the first PDCCH candidate ends at least 14 symbols before the start of the second PDSCH. Alternatively, the first condition may be that the second PDCCH candidate ends at least 14 symbols before the start of the second PDSCH.

[0276] Text Proposal

[0277] If the PDSCHs overlap partially or completely in time, then it is not expected for the UE to decode a PDSCH with C-RNTI or MCS-C-RNTI scheduled in the serving cell and another PDSCH with CS-RNTI scheduled in the same serving cell, unless the PDCCH that schedules the PDSCH with C-RNTI or MCS-C-RNTI Or at least one of the paired PDCCHs Ends at least 14 symbols before the start of a PDSCH with CS-RNTI without corresponding DCI, in which case the UE should decode the PDSCH scheduled with C-RNTI or MCS-C-RNTI.

[0278] If the PDSCHs overlap partially or completely in time, then it is not expected for the UE to decode a PDSCH with C-RNTI or MCS-C-RNTI scheduled in the serving cell and another PDSCH with CS-RNTI scheduled in the same serving cell, unless the PDCCH that schedules the PDSCH with C-RNTI or MCS-C-RNTI or both PDCCHs of a paired PDCCH Ends at least 14 symbols before the start of a PDSCH with CS-RNTI without any corresponding DCI, in which case the UE should decode the PDSCH scheduled with C-RNTI or MCS-C-RNTI.

[0279] Second concept

[0280] The second concept of the present invention is that the BS transmits the first and second PDCCH candidates with C-RNTI or MCS-RNTI to schedule PDSCH, both of which end at least 14 symbols before the start of PDSCH without any corresponding PDCCH. The PDSCH with C-RNTI or MCS-C-RNTI overlaps with the PDSCH without any corresponding PDCCH in time. The first and second PDCCH candidates may be two linked PDCCH candidates. The first and second PDCCH candidates may schedule PDSCH with C-RNTI or MCS-C-RNTI. The first and second PDCCH candidates may be transmitted in a time division multiplexing manner. The first PDCCH candidate may be determined by the PDCCH candidate that ends earlier in time among the two linked PDCCH candidates. The second PDCCH candidate may be determined by the PDCCH candidate that ends later in time among the two linked PDCCH candidates.

[0281] As an example of the second concept, the BS may transmit a first and a second PDCCH candidate with a C-RNTI or MCS-C-RNTI to schedule a PDSCH. The PDSCH with the C-RNTI or MCS-C-RNTI overlaps in time with a PDSCH without any corresponding PDCCH. The first PDCCH and the second PDCCH may both end at least 14 symbols before the start of the PDSCH without any corresponding PDCCH. The second PDCCH candidate may end later than the first PDCCH candidate.

[0282] In one embodiment, the BS may transmit multiple PDCCH candidates to the UE. The multiple PDCCHs may include a first PDCCH candidate and a second PDCCH candidate. The first PDCCH candidate may be scrambled using C-RNTI or MCS-C-RNTI. The second PDCCH candidate may be scrambled using C-RNTI or MCS-C-RNTI. The first and second PDCCH candidates may be linked PDCCH candidates. The first and second PDCCH candidates may schedule the first PDSCH. The first PDCCH candidate may end before the second PDCCH candidate in time. The first PDSCH and the second PDSCH may partially or completely overlap in time. The second PDSCH may be a semi-statically scheduled PDSCH without any corresponding PDCCH. The first PDCCH candidate may end at least 14 symbols before the start of the second PDSCH. The second PDCCH candidate may end at least 14 symbols before the start of the second PDSCH.

[0283] third concept

[0284] The third concept of the present invention is that the BS can transmit only one of the first and second PDCCH candidates with C-RNTI or MCS-RNTI to schedule PDSCH, which ends at least 14 symbols before the start of PDSCH without corresponding PDCCH. PDSCH with C-RNTI or MCS-C-RNTI may overlap with PDSCH without any corresponding PDCCH in time. The first and second PDCCH candidates may be two linked PDCCH candidates. The first and second PDCCH candidates may schedule PDSCH with C-RNTI or MCS-C-RNTI. The first and second PDCCH candidates may be transmitted in a time division multiplexing manner. The first PDCCH candidate may be determined by the PDCCH candidate that ends earlier in time among the two linked PDCCH candidates. The second PDCCH candidate may be determined by the PDCCH candidate that ends later in time among the two linked PDCCH candidates. The first PDCCH candidate may end at least 14 symbols before the start of PDSCH without any corresponding PDCCH. The second PDCCH candidate may end less than 14 symbols before the start of the PDSCH without any corresponding PDCCH. The BS may transmit the first PDCCH candidate with C-RNTI or MCS-RNTI scheduling PDSCH, which ends at least 14 symbols before the start of the PDSCH without any corresponding PDCCH.

[0285] As an example of the third concept, the BS may transmit a first PDCCH candidate with a C-RNTI or MCS-C-RNTI to schedule a PDSCH. The PDSCH with the C-RNTI or MCS-C-RNTI may overlap in time with a PDSCH without any corresponding PDCCH. The first PDCCH may end at least 14 symbols before the start of the PDSCH without any corresponding PDCCH. The second PDCCH candidate may end less than 14 symbols before the start of the PDSCH without any corresponding PDCCH.

[0286] In one embodiment, the BS may configure multiple PDCCH candidates for the UE. The multiple PDCCHs may include a first PDCCH candidate and a second PDCCH candidate. The first PDCCH candidate may be scrambled using C-RNTI or MCS-C-RNTI. The second PDCCH candidate may be scrambled using C-RNTI or MCS-C-RNTI. The first and second PDCCH candidates may be linked PDCCH candidates. The first and second PDCCH candidates may schedule the first PDSCH. The first PDCCH candidate may end before the second PDCCH candidate in time. The first PDSCH and the second PDSCH may partially or completely overlap in time. The second PDSCH may be a semi-statically scheduled PDSCH without any corresponding PDCCH. The first PDCCH candidate may end at least 14 symbols before the start of the second PDSCH. The second PDCCH candidate may end less than 14 symbols before the start of the second PDSCH.

[0287] In one embodiment, the BS may transmit the first PDCCH candidate without transmitting the second PDCCH candidate to the UE.

[0288] Throughout the present invention, unless otherwise specified, the present invention describes the behavior or operation of a single serving cell. In addition, "UE is configured" may be replaced with "UE receives a signal for configuration" or "UE receives a configuration for". And, "network configuration" may be replaced with "network transmits a signal for configuration" or "network transmits a configuration for". In addition, "network" may be replaced with "gNB" or "eNB" or "base station (BS)".

[0289] Figure 8 800 according to an exemplary embodiment from the perspective of the network. In step 805, the network transmits the SPS configuration to the UE for configuring the second PDSCH. In step 810, the network transmits the configuration to the UE for configuring a first listening opportunity for the first PDCCH and a second listening opportunity for the second PDCCH, wherein the second PDCCH is associated with the first PDCCH. In step 815, the network does not allow the first PDCCH and the second PDCCH to schedule the UE by partially or completely overlapping the first PDSCH with the second PDSCH in the time domain, wherein the last symbol of the later listening opportunity among the first and second listening opportunities ends less than the processing threshold before the start symbol of the second PDSCH.

[0290] In one embodiment, when the last symbol of the later listening opportunity among the first listening opportunity and the second listening opportunity ends at least the processing threshold before the start symbol of the second PDSCH, the network does not transmit the second PDSCH. The later listening opportunity among the first listening opportunity and the second listening opportunity may correspond to a listening opportunity that ends later among the first listening opportunity and the second listening opportunity.

[0291] In one embodiment, the first listening opportunity and the second listening opportunity may be earlier than the second PDSCH. The processing threshold may be 14 orthogonal frequency division multiplexing (OFDM) symbols. In addition, the processing threshold may be associated with receiving and / or decoding the PDCCH. In addition, the processing threshold may be fixed.

[0292] In one embodiment, the network may transmit the first PDCCH via a first beam or using a first quasi co-location (QCL) assumption with a first reference signal (RS). The network may also transmit the second PDCCH via a second beam or using a second QCL assumption with a second RS. The first RS and the second RS may be the same or different.

[0293] In one embodiment, the first PDSCH may be scrambled or associated with a C-RNTI, a CS-RNTI, or an MCS-C-RNTI. The first PDCCH may be scrambled or associated with a C-RNTI or an MCS-C-RNTI. The second PDCCH may be scrambled or associated with a C-RNTI or an MCS-C-RNTI. The first PDCCH may transmit or carry downlink control information (DCI), and the downlink control information has the same scheduling information as the DCI transmitted or carried by the second PDCCH.

[0294] In one embodiment, the second PDSCH may not be scheduled by the third PDCCH or there is no dynamic scheduling PDCCH for the second PDSCH. When only the earlier listening opportunity among the first and second PDCCH listening opportunities ends at least at a processing threshold before the start symbol of the second PDSCH, the network may not be allowed to transmit the first PDSCH partially or completely overlapping with the second PDSCH in the time domain.

[0295] Return to reference Figure 3 and 4In an exemplary embodiment of the network, the network 300 includes a program code 312 stored in the memory 310. The CPU 308 can execute the program code 312 to enable the network to (i) transmit the SPS configuration to the UE for configuring the second PDSCH; (ii) transmit the configuration to the UE for configuring the first listening time of the first PDCCH and the second listening time of the second PDCCH, wherein the second PDCCH is associated with the first PDCCH; and (iii) not allow the first PDCCH and the second PDCCH to schedule the UE so that the first PDSCH partially or completely overlaps with the second PDSCH in the time domain, wherein the last symbol of the later listening time among the first and second listening times ends less than the processing threshold before the start symbol of the second PDSCH. In addition, the CPU 308 can execute the program code 312 to perform all of the above actions and steps or other actions and steps described herein.

[0296] Fig. 9 Flowchart 900 according to an exemplary embodiment is viewed from the perspective of a UE. In step 905, the UE receives an SPS configuration from a network for configuring a second PDSCH. In step 910, the UE receives a configuration from the network for configuring a first listening opportunity of a first physical downlink control channel (PDCCH) and a second listening opportunity of a second PDCCH, wherein the second PDCCH is associated with the first PDCCH. In step 915, when the last symbol of the later listening opportunity among the first listening opportunity and the second listening opportunity ends at least at a processing threshold before the start symbol of the second PDSCH, the UE receives or decodes a first PDSCH scheduled by the first PDCCH and the second PDCCH, wherein the first PDSCH partially or completely overlaps with the second PDSCH in the time domain.

[0297] In one embodiment, when the last symbol of the later listening opportunity among the first listening opportunity and the second listening opportunity ends at least the processing threshold before the start symbol of the second PDSCH, the UE may not receive or decode the second PDSCH and / or receive or decode the first PDSCH. In addition, when the last symbol of the later listening opportunity among the first listening opportunity and the second listening opportunity does not end at least the processing threshold before the start symbol of the second PDSCH, the UE may not receive or decode the first PDSCH and / or receive or decode the second PDSCH. In addition, when only the first listening opportunity ends at at least the processing threshold before the start symbol of the second PDSCH, the UE may not receive or decode the first PDSCH, and / or may not receive or decode the second PDSCH.

[0298] In one embodiment, the first listening opportunity and the second listening opportunity may be earlier than the second PDSCH. The processing threshold may be 14 OFDM symbols. The processing threshold may be associated with PDCCH reception and / or decoding. The processing threshold may be fixed.

[0299] In one embodiment, the later listening opportunity between the first listening opportunity and the second listening opportunity may correspond to a listening opportunity that ends later between the first listening opportunity and the second listening opportunity.

[0300] In one embodiment, the UE may receive the first PDCCH via a first beam or using a first QCL with a first RS. The UE may receive the second PDCCH via a second beam or using a second QCL with a second RS. The first RS and the second RS may be the same or different.

[0301] In one embodiment, the first PDSCH may be scrambled or associated with a C-RNTI, a CS-RNTI, or an MCS-C-RNTI. The first PDCCH may be scrambled or associated with a C-RNTI or an MCS-C-RNTI. The second PDCCH may be scrambled or associated with a C-RNTI or an MCS-C-RNTI. The first PDCCH may convey or carry DCI having the same scheduling information as the DCI conveyed or carried by the second PDCCH.

[0302] In one embodiment, the second PDSCH may not be scheduled by the third PDCCH. In addition, there may be no dynamic scheduling PDCCH for the second PDSCH.

[0303] Return to reference Figure 3 and 4 In an exemplary embodiment of the UE, the UE 300 includes a program code 312 stored in the memory 310. The CPU 308 can execute the program code 312 to enable the UE to (i) receive an SPS configuration from the network for configuring a second PDSCH; (ii) receive a configuration from the network for configuring a first listening opportunity of a first PDCCH and a second listening opportunity of a second PDCCH, wherein the second PDCCH is associated with the first PDCCH; and (iii) when the last symbol of the later listening opportunity among the first and second listening opportunities ends at least at a processing threshold before the start symbol of the second PDSCH, receive or decode the first PDSCH scheduled by the first PDCCH and the second PDCCH, wherein the first PDSCH partially or completely overlaps with the second PDSCH in the time domain. In addition, the CPU 308 can execute the program code 312 to perform all of the above actions and steps or other actions and steps described herein.

[0304] Fig.101000 is a flowchart according to an exemplary embodiment from the perspective of the network. In step 1005, the network configures one or more PDSCHs for the UE on the first serving cell, wherein the one or more PDSCHs are associated with at least one SPS configuration, and the one or more PDSCHs include a second PDSCH. In step 1010, the network transmits a first PDCCH at a first listening opportunity. In step 1015, the network transmits a second PDCCH at a second listening opportunity, wherein the first PDCCH and the second PDCCH are scheduled for the first PDSCH, and the first PDSCH partially or completely overlaps with the second PDSCH in the time domain. In step 1020, the network derives or determines whether to transmit or cancel the second PDSCH based at least on a reference listening opportunity of the first listening opportunity and the second listening opportunity.

[0305] In one embodiment, the reference listening timing (of the first listening timing and the second listening timing) may be an earlier or later listening timing of the first listening timing and the second listening timing.

[0306] In one embodiment, the determination or derivation may be further based on a processing time of the UE. The processing time of the UE may be 14 OFDM symbols. The processing time of the UE may be associated with PDCCH reception and / or decoding. The determination or derivation may be further based on a processing threshold. The processing threshold may be 14 OFDM symbols. The processing threshold may be associated with PDCCH reception and / or decoding. In addition, the determination or derivation may be further based on a duration or time interval between an end OFDM symbol of the reference listening opportunity and a start OFDM symbol of the second PDSCH.

[0307] In one embodiment, if the duration or time interval is less than the processing time or processing threshold of the UE, the network may transmit the second PDSCH, and / or the network cancels or does not transmit the first PDSCH. If the duration or time interval is equal to or greater than the processing time or processing threshold of the UE, the network may transmit the first PDSCH, and / or the network may cancel or may not transmit the second PDSCH. Regardless of or without the decoding results of the first PDCCH and / or the second PDCCH, the UE may determine whether to receive or cancel the second PDSCH (if / in response to the correlation of the first PDCCH with the second PDCCH).

[0308] In one embodiment, the first listening opportunity and the second listening opportunity may not overlap in the time domain or may be separated in the time domain. The first PDSCH may partially or completely overlap or not overlap with the second PDSCH in the frequency domain. The first PDSCH may include one or more PRBs with PRB indices, wherein each PRB index is different from the second PDSCH or at least some PRB indices are different from the second PDSCH.

[0309] In one embodiment, the network may transmit a first PDCCH via a first beam or using a first QCL assumption with a first RS. The network may transmit a second PDCCH via a second beam or using a second QCL assumption with a second RS. The first RS may be different from the second RS. The first PDCCH may be associated with a first search space. The second PDCCH may be associated with a second search space. The first search space may be associated with at least a first listening opportunity. The second search space may be associated with at least a second listening opportunity. The first search space and the second search space may have different or identical search space indexes. The first search space and the second search space may indicate a listening opportunity in a DL bandwidth part (Bandwidth Part, BWP) or in a DL BWP in a first (same) serving cell.

[0310] Return to reference Figure 3 and 4 In an exemplary embodiment of the network, the network 300 includes a program code 312 stored in the memory 310. The CPU 308 can execute the program code 312 to enable the network to (i) configure one or more PDSCHs for the UE on the first serving cell, wherein the one or more PDSCHs are associated with at least one SPS configuration, and the one or more PDSCHs include a second PDSCH; (ii) transmit the first PDCCH at the first listening opportunity; (iii) transmit the second PDCCH at the second listening opportunity, wherein the first PDCCH and the second PDCCH are scheduled for the first PDSCH, and the first PDSCH partially or completely overlaps with the second PDSCH in the time domain; and (iv) derive or determine whether to transmit or cancel the second PDSCH based on at least the reference listening opportunity of the first listening opportunity and the second listening opportunity. In addition, the CPU 308 can execute the program code 312 to perform all of the above actions and steps or other actions and steps described herein.

[0311] Fig.111100 according to an exemplary embodiment from the perspective of a UE. In step 1105, one or more PDSCHs are configured for the UE on a first serving cell by the network, wherein the one or more PDSCHs are associated with at least one SPS configuration, and the one or more PDSCHs include a second PDSCH. In step 1110, a first listening opportunity for monitoring a first PDCCH is configured for the UE by the network. In step 1115, a second listening opportunity for a second PDCCH is configured for the UE by the network, wherein the second PDCCH is associated with the first PDCCH (for PDCCH reliability enhancement). In step 1120, the UE determines or derives whether to receive or decode a first PDSCH scheduled by a first PDCCH and a second PDCCH based on whether both the first time interval / duration or the second time interval / duration are greater than or equal to a processing threshold, wherein the first PDSCH partially or completely overlaps with the second PDSCH in the time domain.

[0312] In one embodiment, the first time interval / duration may be between the first listening opportunity and the second PDSCH, and / or the second time interval / duration may be between the second listening opportunity and the second PDSCH. If both the first time interval / duration or the second time interval / duration are greater than or equal to the processing threshold, the UE may receive or decode the first PDSCH and / or the UE may not receive or decode the second PDSCH. If at least the first time interval / duration or the second time interval / duration is less than the processing threshold, the UE may not receive or decode the first PDSCH and / or receive or decode the second PDSCH. The first listening opportunity and / or the second listening opportunity may be earlier than the second PDSCH.

[0313] Return to reference Figure 3 and 4In an exemplary embodiment of the UE, the UE 300 includes a program code 312 stored in the memory 310. The CPU 308 can execute the program code 312 to enable the UE to (i) be configured with one or more PDSCHs on the first serving cell by the network, wherein the one or more PDSCHs are associated with at least one SPS configuration, and the one or more PDSCHs include a second PDSCH; (ii) be configured with a first listening opportunity for listening to the first PDCCH by the network; (iii) be configured with a second listening opportunity for the second PDCCH by the network, wherein the second PDCCH is associated with the first PDCCH (for PDCCH reliability enhancement); and (iv) determine or derive whether to receive or decode the first PDSCH scheduled by the first PDCCH and the second PDCCH based on whether the first time interval / duration or the second time interval / duration is greater than or equal to the processing threshold, wherein the first PDSCH partially or completely overlaps with the second PDSCH in the time domain. In addition, the CPU 308 can execute the program code 312 to perform all of the above actions and steps or other actions and steps described herein.

[0314] Fig.12 1200 is a flowchart according to an exemplary embodiment from the perspective of the network. In step 1205, the network configures one or more PDSCHs for the UE on the first serving cell, wherein the one or more PDSCHs are associated with at least one SPS configuration, and the one or more PDSCHs include a second PDSCH. In step 1210, the network configures a first listening opportunity for the first PDCCH for the UE, wherein the first time interval / duration between the first listening opportunity and the second PDSCH is greater than or equal to a processing threshold. In step 1215, the network configures a second listening opportunity for the second PDCCH for the UE, wherein the second PDCCH is associated with the first PDCCH (for PDCCH reliability enhancement). In step 1220, the network transmits a first PDCCH at the first listening opportunity, wherein the first PDCCH schedules a first PDSCH that partially or completely overlaps with the second PDSCH in the time domain. In step 1225, if the second time interval / duration between the second listening opportunity and the second PDSCH is less than the processing threshold, the network is not allowed to transmit the second PDCCH for scheduling the first PDSCH. In step 1230, if the second time interval / duration between the second listening occasion and the second PDSCH is greater than or equal to the processing threshold, the network may transmit a second PDCCH for scheduling the first PDSCH.

[0315] Return to reference Figure 3 and 4In one exemplary embodiment of the network, the network 300 includes program code 312 stored in a memory 310 . The CPU 308 can execute program code 312 to enable the network to (i) configure one or more PDSCHs for the UE on the first serving cell, wherein the one or more PDSCHs are associated with at least one SPS configuration, and the one or more PDSCHs include a second PDSCH; (ii) configure a first listening opportunity for the UE for the first PDCCH, wherein a first time interval / duration between the first listening opportunity and the second PDSCH is greater than or equal to a processing threshold; (iii) configure a second listening opportunity for the UE for the second PDCCH, wherein the second PDCCH is associated with the first PDCCH (for PDCCH reliability enhancement); (iv) transmit the first PDCCH at the first listening opportunity, wherein the first PDCCH schedules the first PDSCH that partially or completely overlaps with the second PDSCH in the time domain; (v) if the second time interval / duration between the second listening opportunity and the second PDSCH is less than the processing threshold, then the second PDCCH for scheduling the first PDSCH is not allowed to be transmitted; and (vi) if the second time interval / duration between the second listening opportunity and the second PDSCH is greater than or equal to the processing threshold, then the second PDCCH for scheduling the first PDSCH is transmitted. Furthermore, CPU 308 may execute program code 312 to perform all of the above-described actions and steps or other actions and steps described herein.

[0316] exist Fig.12 In the context of the embodiments illustrated in and discussed above, regardless of the correlation of the first PDCCH and the second PDCCH (for PDCCH reliability), the UE may (consider) (only) receiving the first PDCCH and may not expect to receive the second PDCCH when the second time interval / duration is less than the processing threshold. The UE may be configured with the correlation between the first PDCCH and the second PDCCH by the network. If the UE does not successfully decode the first PDCCH, the UE may receive the second PDSCH and / or may not receive the first PDSCH. If the UE successfully decodes the first PDCCH, the UE receives the first PDSCH and / or may not receive the second PDSCH, regardless of whether the UE successfully decodes the second PDCCH.

[0317] In one embodiment, the processing threshold may be 14 OFDM symbols. The processing threshold may be associated with PDCCH reception and / or decoding. The processing threshold may be fixed.

[0318] In one embodiment, the processing threshold for PDCCH reliability may be different from or greater than the processing threshold for a single PDCCH. The processing threshold for (soft) combining more than one PDCCH may be different from or greater than the processing threshold for a single PDCCH. The processing threshold for (soft) combining more than one PDCCH may be 14+Δ OFDM symbols, and / or Δ may be associated with UE capabilities or fixed in the standard.

[0319] In one embodiment, the first listening opportunity may be associated with or derived from a configuration of a first search space.The second listening opportunity may be associated with or derived from a configuration of a second search space.

[0320] In one embodiment, the UE may be configured with a link and / or correlation between the first search space and the second search space. The first search space may correspond to a first control resource set (Control Resource Set, CORESET), and / or the second search space may correspond to a second CORESET, and / or the first CORESET may be the same as or different from the second CORESET. The first listening opportunity and the second listening opportunity may be on different serving cells (for example, the UE performs reception using TRPs in different cells). The first listening opportunity and the second listening opportunity may be on the second serving cell, and / or the second serving cell may be different from or the same as the first serving cell. The first listening opportunity and the second listening opportunity may be in the same time slot or in different time slots.

[0321] In one embodiment, the configuration of the first search space may provide a bitmap for indicating at least a first listening opportunity, wherein the bitmap may be "10000000000000", and the first "1" may correspond to the first OFDM symbol of the first listening opportunity, which is the first OFDM symbol in the time slot. The configuration of the second search space may provide a bitmap for indicating at least a second listening opportunity, wherein the bitmap may be "00100000000000", and the first "1" may correspond to the first OFDM symbol of the first listening opportunity, which is the third OFDM symbol in the time slot.

[0322] In one embodiment, the first PDCCH may convey or carry DCI having the same scheduling information as the DCI conveyed or carried by the second PDCCH. (If the UE has reported capabilities related to soft combining of PDCCHs), the UE may perform soft combining of the first PDCCH and the second PDCCH. The first PDCCH may be scrambled or associated with a C-RNTI, a CS-RNTI, or an MCS-C-RNTI. The second PDCCH may be scrambled or associated with a C-RNTI, a CS-RNTI, or an MCS-C-RNTI.

[0323] In one embodiment, one or more PDSCHs associated with at least one SPS PDSCH configuration are configured in a periodic manner. The first PDSCH may be scheduled on a first serving cell (which is the same serving cell as the second PDSCH). If the first PDSCH is scheduled on a second serving cell different from the first serving cell, the network may be allowed to transmit a second PDCCH at a second listening opportunity. The first PDSCH may be scrambled or associated with a C-RNTI, a CS-RNTI, or an MCS-C-RNTI. The second PDSCH may not be associated with a PDCCH, or there may be no dynamically scheduled PDCCH for the second PDSCH.

[0324] In one embodiment, a first CORESET may be associated with a first antenna port quasi co-location (QCL), indicating quasi co-location information of a DM-RS antenna port for PDCCH reception in the first CORESET. A second CORESET may be associated with a second antenna port quasi co-location, indicating quasi co-location information of a DM-RS antenna port for PDCCH reception in the second CORESET. The first antenna port quasi co-location ( / first beam / first QCL type-D RS / first transmission configuration indicator (TCI) state of the first CORESET) may be different from the second antenna port quasi co-location ( / second beam / second QCL type-D RS / second TCI state of the second CORESET).

[0325] In one embodiment, a first TCI state (for a first CORESET) may be active via a Medium Access Control Control Element (MAC CE). A second TCI state (for a second CORESET) may be active via a MAC CE. The first TCI state may be associated with a first serving cell or a DL / UL BWP in the first serving cell. The second TCI state may be associated with a first serving cell or a DL / UL BWP in the first serving cell. The second TCI state may be associated with a second serving cell or a DL / UL BWP in the second serving cell.

[0326] The fourth concept

[0327] In NR Rel-15 / 16, a power headroom report (PHR) may be transmitted by the UE to inform the network of the remaining power headroom between the current transmit power and the maximum transmit power of the UE. The PHR report may be a type-1 PHR report calculated based on PUSCH, while a type-3 PHR report is calculated based on SRS. The PHR report may be calculated or derived based on actual transmission or based on a reference format or parameter. One PHR (value) of a serving cell and / or carrier based on actual uplink transmission may refer to a real PHR, while one PHR (value) of a serving cell and / or carrier based on a reference format may refer to a virtual PHR. The PHR report will be triggered according to 3GPP TS 38.321 V16.3.0 in the UE side for (any) activated serving cell. One PHR (value) of a serving cell and / or carrier may be replaced by or equivalent to one power headroom (value) of a serving cell and / or carrier. The UE will derive one or more PHR values ​​for one or more activated serving cells. One or more PHR values ​​may be real or virtual. The UE shall generate one MAC CE indicating one or more PHR values. The UE shall multiplex one MAC CE on the MAC PDU. The UE shall transmit the MAC PDU based on the uplink grant scheduling the new / initial transmission.

[0328] For example, if Fig.14 As shown in , the UE has two activated serving cells (cell 1, cell 2). The UE may trigger a PHR due to a change in path loss on at least cell 1 or cell 2. DCI 1 is the earliest DCI that schedules an initial transmission (PUSCH 1) since / after the UE triggers the PHR. In one embodiment, the intention of PDCCH listening opportunity 1 for determining a real or virtual PHR may be to guarantee processing time for PHR value calculation and / or PUSCH generation. In this example, the UE may receive DCI 2 before DCI 1, but DCI 2 schedules a retransmission (e.g., PUSCH 2). According to 3GPP TS38.213V16.4.0, the interval between (the end OFDM symbol of) PDCCH listening opportunity 1 and the time point of triggering the PHR can be used to determine whether the PHR value of a cell is real or virtual. In this example, consider that PUSCH 1 includes (PHR) MAC CE, and because DCI 2 scheduling PUSCH 2 is earlier than DCI 1, the UE can calculate the PHR value of cell 2 based on the transmit power of PUSCH 2 which is the real PHR. In this example, PUSCH 1 and PUSCH 2 may overlap completely or partially in the time domain.

[0329] In one embodiment, PUSCH 1 and PUSCH 2 may be in the same time slot but do not overlap in the time domain. PUSCH 1 and PUSCH 2 may be in different time slots. PUSCH 2 may be in a time slot later than another time slot used for PUSCH 1. PUSCH 2 may be in a time slot earlier than another time slot used for PUSCH 1. PDCCH monitoring opportunity 1 may be or span 1, 2, or 3 OFDM symbols.

[0330] However, after the introduction of PDCCH repetition, a pair of PDCCHs in different PDCCH monitoring occasions can schedule the same PUSCH. It is not clear how to define the PDCCH monitoring occasion to include the earliest DCI since / after the DCI triggering. For example, Fig.15 As shown in , the UE may be configured with PDCCH repetitions for cell 1 and cell 2. In one embodiment, cell 1 and cell 2 may be self-scheduled (e.g., PDCCH / DCI and PDSCH / PUSCH are in the same cell). According to the linkage of the two search spaces for cell 1 and the linkage of the two search spaces for cell 2, DCI 1 and DCI 1' may schedule the same PUSCH 1, while DCI 2 and DCI 2' may schedule the same PUSCH 2. Both PUSCH 1 and PUSCH 2 may be initial transmissions. In this example, in the case of introducing PDCCH repetitions for one or more cells, possible PDCCH listening opportunities and / or possible timings for determining whether a PHR value is real or virtual may be t1, t2, t3, or t4. In one embodiment, for each PDCCH listening opportunity, t1, t2, t3, t4 may be the starting or ending OFDM symbol. How the UE determines a real or virtual PHR may require further design.

[0331] In such Fig.19 In one embodiment shown in , the gNB shall indicate a scheduling offset or timing offset between DCI 1 and PUSCH 1, where the scheduling offset should be guaranteed for DCI decoding, PHR calculation and / or UL data coding / modulation.

[0332] In one embodiment, the scheduling cell may refer to an SCell or a PCell. The scheduled cell may refer to a PCell or an SCell. A dynamic spectrum sharing (DSS) context for SCell scheduling PCell may be an addressing context.

[0333] In one embodiment, for a scheduled cell across cells / carriers scheduled by a scheduling cell, the UE may not receive a PDCCH on the scheduled cell. In order to determine the earliest DCI since the triggering scheduling of the PHR of the initial PUSCH including the PHR, the earliest DCI may be based on the earliest DCI in the time domain, and the PDCCH monitoring opportunity is the later PDCCH monitoring opportunity including the earliest DCI.

[0334] This concept is based on determining the specific DCI (including or accommodating the Power Headroom Report (PHR)) that schedules the initial PUSCH based on the earliest received DCI since the triggering of the PHR. In one embodiment, the earliest received DCI may be associated with more than one PDCCH listening opportunity. The specific listening opportunity may be determined based on a later PDCCH listening opportunity that includes the specific DCI. The UE will receive multiple DCIs starting from / after the triggering of the PHR. In one embodiment, one DCI in the multiple DCIs may correspond to one or more PDCCH listening opportunities. Each of the multiple DCIs may schedule the initial transmission.

[0335] For PDCCH repetition or one DCI corresponding to more PDCCH monitoring occasions on the serving cell, the UE may determine the reference PDCCH candidate (for a pair of PDCCH candidates) based on the later PDCCH candidate of the pair of PDCCH candidates.

[0336] In order to determine a specific DCI and / or a specific PDCCH monitoring timing among multiple DCIs and a specific DCI associated with more than one PDCCH monitoring timing, the UE may determine the specific PDCCH monitoring timing based on the PDCCH monitoring timing (e.g., a later PDCCH monitoring timing) including the reference PDCCH candidate.

[0337] For example, if Fig.17 As shown in , cell 1 (C1) has MO1 associated with MO1', cell 2 (C2) has MP2 associated with MO2', and cell 3 (C3) has one MO3. In one embodiment, both PDCCH 1 in MO1 and PDCCH 1' in MO1' can schedule PUSCH 1 (which is the initial transmission). Both PDCCH 2 in MO2 and PDCCH 2' in MO2' can schedule PUSCH 2 (which is the initial transmission). PDCCH 3 in MO3 can schedule PUSCH 3 (which is the initial transmission).

[0338] In this example, if the UE detects one DCI in MO1, the UE will transmit PUSCH 1 including the PHR values ​​of cell 1, cell 2 and / or cell 3. In one embodiment, (the UE can determine) that the specific DCI is on MO1 (because MO1 is the earliest MO1 that includes the DCI received since the PHR was triggered). (The UE can determine) that the specific PDCCH monitoring opportunity is MO1' (MO is a later PDCCH monitoring opportunity that includes the specific DCI since the PHR was triggered). The reason for using MO1' as the specific PDCCH monitoring opportunity may be that when DCI one MO1 and MO1' are detected, the UE's processing timeline is based on MO1'. In other words, the UE can still derive or calculate the PHR of cell 2 based on the DCI received in MO2 and / or MO2'. In this example, the PHR of cell 1 may be true, the PHR of cell 2 may be true, and the PHR of cell 3 may be true.

[0339] In another example, if the UE does not detect a DCI in MO1 and detects a DCI in MO2, the UE shall transmit PUSCH 2 including PHR values ​​for cell 1, cell 2 and / or cell 3. Preferably, (the UE determines) that the specific DCI is on MO2 (because MO2 is the earliest one that includes the DCI received since the PHR was triggered). Preferably,

[0340] The (UE determines) specific PDCCH monitoring occasion is MO2' (which is a later MO including specific DCI since the PHR was triggered). In this example, the PHR of cell 1 is virtual, the PHR of cell 2 is real, and the PHR of cell 3 is real. Preferably, the UE does not derive or calculate the PHR value of cell 1 based on PUSCH 1 (because the PDCCH on MO1' for scheduling PUSCH 1 is later than the specific monitoring occasion, and the PDCCH on MO1 is not detected).

[0341] In another example, if the UE does not detect a DCI in MO1' and detects a DCI in MO1', the UE will transmit PUSCH 1 including the PHR values ​​of cell 1, cell 2 and / or cell 3. Preferably, (the UE determines) that the specific DCI is on MO1' (because MO1 is the most PDCCH monitoring opportunity that is likely to be received since the PHR is triggered and the UE receives the specific DCI at the associated PDCCH monitoring opportunity MO1'). Preferably, (the UE determines) that the specific PDCCH monitoring opportunity is MO1' (which is a later MO that includes the specific DCI since the PHR is triggered). In this example, the PHR of cell 1 is true, the PHR of cell 2 is true, and the PHR of cell 3 is true.

[0342] For example, if Fig.18 As shown in , cell 1 (C1) may have MO1 associated with MO1', cell 2 (C2) may have MP2 associated with MO2', and cell 3 (C3) may have one MO3. Both PDCCH 1 in MO1 and PDCCH 1' in MO1' may schedule PUSCH 1 (which is an initial transmission). Both PDCCH 2 in MO2 and PDCCH 2' in MO2' may schedule PUSCH 2 (which is an initial transmission). PDCCH 3 in MO3 may schedule PUSCH 3 (which is an initial transmission).

[0343] In this example, if the UE detects DCI in MO1, MO2, MO1', MO2', and MO3, the UE may determine a specific DCI based on MO3 (because MO3 is the earliest compared to MO1' and MO2'). (The UE may determine) that a specific PDCCH monitoring timing is based on MO3. MO1' may be a reference PDCCH monitoring timing for determining the timing of PDCCH repetitions on MO1 and MO1'. MO2' may be a reference PDCCH monitoring timing for determining the timing of PDCCH repetitions on MO2 and MO2'. The UE may transmit PUSCH 3 including the PHR of cell 1, the PHR of cell 2, and / or the PHR of cell 3.

[0344] In another example, if the UE detects DCI in MO1, MO2, MO1', and MO2' and does not detect DCI on MO3, the UE may determine a specific DCI based on MO3 (because MO2' is earlier than MO1'). (The UE may determine) that a specific PDCCH listening opportunity is based on MO2'. MO1' may be a reference PDCCH listening opportunity for determining the timing of PDCCH repetitions on MO1 and MO1'. MO2' may be a reference PDCCH listening opportunity for determining the timing of PDCCH repetitions on MO2 and MO2'. The UE may transmit PUSCH 2 including the PHR of cell 1, the PHR of cell 2, and / or the PHR of cell 3. In one embodiment, the PHR of cell 1 may be virtual (if DCI is not detected on MO1). The PHR of cell 1 may be real. The PHR of cell 2 may be real. The PHR of cell 3 may be virtual (because DCI is not detected on MO3).

[0345] In one embodiment, in the present invention, the UE may not detect DCI at a PDCCH monitoring occasion may mean or refer to the UE may not detect DCI or may not detect DCI for scheduling an initial (uplink) transmission.

[0346] In one embodiment, the UE may determine whether the PHR (for the serving cell) is real or virtual based on a specific PDCCH monitoring opportunity (e.g., the end OFDM symbol of the specific PDCCH monitoring opportunity is ts). The specific PDCCH monitoring opportunity or the end OFDM symbol of the specific PDCCH monitoring opportunity (e.g., ts) may be replaced with a specific timing associated with the (processing) interval before the PUSCH is configured to be granted.

[0347] In one embodiment, a MAC PDU including a PHR MAC CE may be transmitted via a configured grant PUSCH.

[0348] For example, if Fig.16 As shown in , a specific PDCCH listening opportunity (e.g., ending with ts) includes the earliest DCI that schedules the initial PUSCH transmission since the triggering of PHR / after the triggering of PHR. In this example, the PDCCH listening opportunity may be associated with two linked search spaces, and one PDCCH listening opportunity (e.g., MO2) may be before (and / or include ts) and another PDCCH listening opportunity (e.g., MO2') may be later than ts. In one embodiment, the DCI on MO2 and the DCI on MO2' may have the same scheduling information (and results). ts may be the starting OFDM symbol or the ending OFDM symbol of a specific PDCCH listening opportunity. With respect to the PDCCH / search space / PDCCH listening opportunities of the two links, there may be two criteria for determining whether they generate a real or virtual PHR value. The first criterion may be to determine the real PHR value based on at least one MO (earlier than ts). The second criterion may be to determine the real PHR value based on at least two MOs (earlier than ts).

[0349] In one embodiment, the UE may further determine based on whether the UE receives DCI in the (corresponding) MO. If the UE receives DCI on both MO2 and MO2' (e.g., (MO2, MO2') = (Y, Y)), then the UE based on the first criterion may derive a "real PHR", and / or the UE based on the second criterion may derive a "virtual PHR". If the UE receives DCI on MO2 and does not receive DCI on MO2' (e.g., (MO2, MO2') = (Y, N)), then the UE based on the first criterion may derive a "real PHR", and / or the UE based on the second criterion may derive a "virtual PHR" (even if the UE has received DCI on MO2). If the UE does not receive DCI on MO2 and receives DCI on MO2' (e.g., (MO2, MO2') = (N, Y)), then the UE based on the first criterion may derive a "virtual PHR", and / or the UE based on the second criterion may derive a "virtual PHR" (even if the UE has received DCI on MO2).

[0350] Alternatively, if the UE does not receive DCI on MO2 and does receive DCI on MO2' (e.g., (MO2, MO2') = (N, Y)), then the UE based on the first criterion may derive a "real PHR" (due to the DCI received on MO2'). If the UE does not receive DCI on MO2 and does not receive DCI on MO2' (e.g., (MO2, MO2') = (N, N)), then the UE based on the first criterion may derive a "virtual PHR" and / or the UE based on the second criterion may derive a "virtual PHR". According to the first criterion, the reference PDCCH candidate of the two PDCCH candidates used to determine whether the real or virtual PHR is used for the scheduled cell may be the first PDCCH (e.g., the earlier one in the time domain).

[0351] In one embodiment, for two search spaces of a scheduling cell, one or two CORESETs may be associated with the two search spaces of the scheduling cell, respectively. One or two CORESETs may be associated with different TRPs. One or two CORESETs may be associated with different CORESETPoolIndex. One or two CORESETs may be associated with different TCI states / beams / spatial relationships / QCL type-D assumptions / spatial filters.

[0352] In one embodiment, source RSs of different TCI states / beams / spatial relations / QCL type-D assumptions / spatial filters may be associated with different cells with different PCIs.

[0353] In one embodiment, one scheduling cell may be associated with one or more TCI states, wherein the source RSs of the one or more TCI states may be associated with one or more cells having different PCIs.

[0354] In one embodiment, the linkage / link / link / correlation / pair of two search spaces (sets) may refer to or mean PDCCH repetition. The UE may be configured with the linkage / link / link / correlation / pair of two search spaces (sets) of a cell (e.g., SS1, SS2) by receiving an SSID pointing to or associated with another SSID. In one embodiment, for a pair of PDCCH candidates including PDCCH 1 and PDCCH 2, PDCCH 1 and PDCCH 2 schedule the same PDSCH.

[0355] For example, if Fig.13As shown in , 1 and 2 are linked search spaces, and both PDCCH 1 and PDCCH 2 are from the linked search space, scheduling two PDSCHs respectively. In one embodiment, the linking / linking / linking / correlation / pair of two search spaces (sets) may refer to or mean that PDCCH 1 from one of the two search spaces (sets) may be linked / linked / associated / paired to PDCCH 2 from the other of the two search spaces (sets). PDCCH 1 and PDCCH 2 (which are linked / associated) may have the same CCE and / or the same starting CCE. Linked (cell's) SS1 and SS2 may refer to or imply that a PDCCH (candidate) with a PDCCH candidate ID from SS1 is linked to a PDCCH (candidate) with a PDCCH candidate ID from SS2. PDCCH 1 and PDCCH 2 (which are linked / associated) may have the same PDCCH candidate ID. PDCCH1 and PDCCH2 may be separated in the time domain (TDM), frequency domain (FDM), or spatial domain (SDM).

[0356] In one embodiment, the CORESET for PDCCH 1 may be separated from the CORESET for PDCCH 2 in the time domain, frequency domain, or spatial domain. The CORESET for PDCCH 1 may partially overlap with the CORESET for PDCCH 2 in the time domain, frequency domain, and / or spatial domain.

[0357] In one embodiment, the PDCCH monitoring opportunities for PDCCH 1 are separated from the PDCCH monitoring opportunities for PDCCH 2 in the time domain, frequency domain, or spatial domain. In one embodiment, the PDCCH monitoring opportunities for PDCCH 1 may partially overlap with the PDCCH monitoring opportunities for PDCCH 2 in the time domain, frequency domain, and / or spatial domain. In one embodiment, PDCCH 1 and PDCCH 2 may be a pair of PDCCH candidates. In one embodiment, PDCCH 1 is associated with a different TRP compared to PDCCH 2. In one embodiment, PDCCH 1 is associated with a different CORESETPoolIndex compared to PDCCH 2. In one embodiment, PDCCH 1 is associated with a different CORESET compared to PDCCH 2. In one embodiment, PDCCH 1 is associated with a different TCI state / beam / spatial relationship compared to PDCCH 2.

[0358] / QCL type-D assumes / spatial filter associated.

[0359] In one embodiment, the TCI status / beam / spatial relationship associated with PDCCH 1

[0360] / QCL type-D assumption / source RS of spatial filter is different from the TCI state / beam / spatial relationship / QCL type-D assumption / source RS of spatial filter associated with PDCCH 2.

[0361] In one embodiment, the TCI status / beam / spatial relationship associated with PDCCH 1

[0362] / QCL type-D assumption / source RS of spatial filter may be associated with a different PCI of the cell compared to the TCI state / beam / spatial relationship / QCL type-D assumption / source RS of spatial filter associated with PDCCH 2.

[0363] In one embodiment, for a pair of PDCCH candidates, the UE may assume X blind decoding attempts or X BDs. In one embodiment, for non-pair of PDCCH candidates, the UE may assume Y blind decoding attempts or Y BDs. In one embodiment, X may be greater than or equal to Y. In one embodiment, the UE may report the value of X to the network. In one embodiment, Y is 2. In one embodiment, X is 2 or 3.

[0364] In one embodiment, for a pair of PDCCH candidates including PDCCH 1 and PDCCH 2, PDCCH 1 and PDCCH 2 schedule the same PUSCH. In one embodiment, for a pair of PDCCH candidates including PDCCH 1 and PDCCH 2, PDCCH 1 and PDCCH 2 indicate the same PUCCH. In one embodiment, for a pair of PDCCH candidates including PDCCH 1 and PDCCH 2, PDCCH 1 and PDCCH 2 indicate the same uplink scheduling and / or downlink allocation. In one embodiment, for a pair of PDCCH candidates including PDCCH 1 and PDCCH 2, one reference PDCCH may be determined from time domain related aspects or may be determined by one reference PDCCH for one of PDCCH 1 and PDCCH 2. In one embodiment, for a pair of PDCCH candidates including PDCCH 1 and PDCCH 2, one reference PDCCH may be a later PDCCH in the time domain (for determining time domain related aspects). In one embodiment, for a pair of PDCCH candidates including PDCCH 1 and PDCCH 2, one reference PDCCH may be the earlier PDCCH in the time domain (for determining the counter DAI, or determining the codebook). In one embodiment, for a pair of PDCCH candidates including PDCCH 1 and PDCCH 2, one reference PDCCH may be the PDCCH with the lowest / highest CORESET ID or associated with the lowest / highest SSID (at least for determining the beam or QCL relationship for the scheduled PDSCH). In one embodiment, for a pair of PDCCH candidates including PDCCH 1 and PDCCH 2, the UE may perform soft combining on the pair of PDCCH candidates. In one embodiment, for non-pair of PDCCH candidates, the UE may not perform soft combining on the two PDCCH candidates.

[0365] In one embodiment, regardless of / regardless of providing a link or link on the two search spaces of the scheduling cell or the scheduled cell or both, the UE expects a limited / restricted configuration of the two search spaces for the scheduling cell. In one embodiment, regardless of / regardless of providing a link or link on the two search spaces of the scheduling cell or the scheduled cell or both, the UE expects the second parameter set and the third parameter set to be restricted or limited. In one embodiment, regardless of / regardless of providing a link or link on the two search spaces of the scheduling cell or the scheduled cell or both, the UE expects the second parameter set and the third parameter set for the two search spaces of the scheduled cell to be restricted or limited.

[0366] A cell may be associated with more than one PCI, for example including a first PCI and a second PCI. The first PCI may be indicated or derived from a (primary) synchronization signal and / or a (secondary) synchronization signal of the cell. The second PCI may be used for (inter-cell) mTRP operations. The first TRP and the second TRP are involved in (inter-cell) mTRP operations. The first TRP (QCL source / parameters of the signal / channel from the first TRP) may be associated with the first PCI and the second TRP (QCL source / parameters of the signal / channel from the second TRP) may be associated with the second PCI.

[0367] In one embodiment, the UE may not expect to refer to or mean or be equivalent to a restriction of the network or not allowing or prohibiting the network. The UE may be configured and / or served in a serving cell by the network. The UE may be configured and / or indicate one or more BWPs. The UE may indicate and / or activate an (active) BWP. The UE may indicate and / or activate an active DL BWP. The UE may indicate and / or activate an active ULBWP. The UE may be configured and / or indicate an initial BWP.

[0368] In one embodiment, the first SS may be associated with a first TRP in a first serving cell. The second SS may be associated with a second TRP in a second serving cell. The first serving cell may have a serving cell index, which may be the same as or different from the serving cell index of the second serving cell.

[0369] In one embodiment, the UE may be in RRC_CONNECTED state. In one embodiment, the UE may be in RRC_INACTIVE state. The UE may be in RRC_IDLE state.

[0370] In one embodiment, the UE may be served by a first TRP. The UE may also be served by a second TRP. In one embodiment, the first TRP may belong to or be associated with the serving cell. The second TRP may belong to or be associated with the serving cell. The first TRP and the second TRP may belong to or may be associated with the same serving cell. Alternatively, the first TRP and the second TRP may belong to or may be associated with different serving cells.

[0371] In one embodiment, the first TRP may schedule or transmit DL or UL transmissions to the UE. The second TRP may schedule or transmit DL or UL transmissions to the UE. The first TRP may receive UL transmissions from the UE. The second TRP may receive UL transmissions from the UE.

[0372] In one embodiment, two different CORESETs may belong to a first TRP and a second TRP (respectively). One search space may be associated with one CORESET belonging to the first TRP and one CORESET belonging to the second TRP. Two different CORESETs may belong to the same TRP as the first TRP or the second TRP. In one embodiment, the two search spaces may be one of the two search spaces may be associated with a CORESET belonging to the first TRP, and the other of the two search spaces may be associated with a CORESET belonging to the second TRP.

[0373] Fig. 20 Flowchart 2000 according to an exemplary embodiment is viewed from the perspective of a UE. In step 2005, the UE triggers a PHR, wherein the UE generates a PHR MAC CE in response to the triggered PHR. In step 2010, the UE detects a first DCI from a first cell since the PHR is triggered, wherein the first DCI is associated with a first pair of PDCCH listening occasions with different end symbols, and the earlier PDCCH listening occasion among the first pair of PDCCH listening occasions is the earliest PDCCH listening occasion that schedules an initial first PUSCH since the PHR is triggered. In step 2015, the UE detects a second DCI from a second cell since the PHR is triggered, wherein the second DCI is associated with a second pair of PDCCH listening occasions with different end symbols, and the second DCI schedules a second PUSCH in a second time slot on the second cell, wherein the second time slot overlaps with the first time slot used to transmit the initial first PUSCH in time domain. In step 220, the UE determines whether the power headroom of the second serving cell is real or virtual based on at least the later PDCCH listening occasion among the first pair of PDCCH listening occasions. In step 2025, the UE transmits a PHR MAC CE to the network, where the PHR MAC CE includes at least information about the power headroom (PH) of the second serving cell.

[0374] In one embodiment, when the end symbol of the later PDCCH monitoring opportunity among the second pair of PDCCH monitoring opportunities is later than the end symbol of the later PDCCH monitoring opportunity among the first pair of PDCCH monitoring opportunities, the power headroom of the second serving cell may be determined as virtual. In addition, the power headroom of the second serving cell may not be determined based on the second PUSCH. In addition, the power headroom of the second serving cell may be determined based on the reference format.

[0375] In one embodiment, when the end symbol of the later PDCCH listening opportunity among the second pair of PDCCH listening opportunities is earlier than or includes the end symbol of the later PDCCH listening opportunity among the first pair of PDCCH listening opportunities, the power headroom of the second serving cell can be determined to be true. In addition, the power headroom of the second serving cell can be determined based on the second PUSCH. In addition, the power headroom of the second serving cell can be determined based on the difference between the UE maximum transmit power and the estimated power for the second PUSCH. In one embodiment, the format can be associated with a reference maximum transmit power, one or more preset parameter sets for determining the reference transmit power, wherein based on the reference format, the power headroom of the second serving cell can be determined based on the difference between the reference maximum transmit power and the reference transmit power.

[0376] In one embodiment, the UE may transmit the PHR MAC CE to the network at least includes the UE transmitting the PHR MAC CE on an initial first PUSCH, wherein the initial first PUSCH may be transmitted on the first cell.

[0377] In one embodiment, a first pair of PDCCH monitoring opportunities may be configured by configuring two linked search spaces on a first serving cell, and / or a second pair of PDCCH monitoring opportunities may be configured by configuring two linked search spaces on a second serving cell.

[0378] Return to reference Figure 3 and 4In an exemplary embodiment of a UE, the UE 300 includes program code 312 stored in a memory 310 . The CPU 308 can execute the program code 312 to enable the UE to (i) trigger a PHR, wherein the UE generates a PHR MAC CE in response to the triggered PHR; (ii) detect a first DCI from a first cell since the triggered PHR, wherein the first DCI is associated with a first pair of PDCCH monitoring occasions with different end symbols, and an earlier PDCCH monitoring occasion among the first pair of PDCCH monitoring occasions is an earliest PDCCH monitoring occasion for scheduling an initial first PUSCH since the triggered PHR; (iii) detect a second DCI from a second cell since the triggered PHR, wherein the second DCI is associated with a second pair of PDCCH monitoring occasions with different end symbols, and the second DCI schedules a second PUSCH in a second time slot on the second cell, wherein the second time slot overlaps with the first time slot used to transmit the initial first PUSCH in time domain; (iv) determine whether the power headroom of the second serving cell is real or virtual based on at least the later PDCCH monitoring occasion among the first pair of PDCCH monitoring occasions; and (v) transmit the PHR MAC CE to the network, wherein the PHR MAC The CE includes at least information of the PH of the second serving cell. In addition, the CPU 308 may execute the program code 312 to perform all of the above actions and steps or other actions and steps described herein.

[0379] Fifth Concept

[0380] In Rel-16, an uplink cancellation indicator (ULCI) is introduced for the purpose of better supporting inter-UE multiplexing and prioritization between UL transmissions. The ULCI may allow the NW to cancel scheduling of UL transmissions with lower priority to a group of UEs when it is necessary to schedule a UE with a higher priority UL transmission. Alternatively, the ULCI may allow the NW to cancel scheduling of UL transmissions to a group of UEs regardless of priority (e.g., indicated by a priority index field in the DCI) when it is necessary to schedule a UE with an UL transmission. In one embodiment, a higher priority index may be associated with a higher priority. Priority index 1 will have a higher priority than priority index 0.

[0381] For example, when the NW needs to schedule a latency-critical URLLC service to the third UE, the ULCI may cancel the (eMBB) transmission of the first UE and the second UE. When the cancellation timeline is met, the first and second UEs may cancel the corresponding UL transmission. The third UE may transmit a UL with a URLLC service that meets the latency requirements of the service.

[0382] For UEs supporting and / or configured with ULCI, the UE may monitor DCI format 2_4 scrambled by CI-RNTI in type 3 PDCCH CSS. The UE may cancel the corresponding PUSCH / SRS indicated by the detected DCI 2_4 when the cancellation timeline is met, for example, the UE cancels the corresponding PUSCH / SRS after Tproc,2 and does not expect to cancel the corresponding PUSCH / SRS within Tproc,2. In one embodiment, the PUSCH / SRS may be scheduled by DCI (e.g., DCI formats 0_0, 0_1 and / or 0_2) or configured by a higher layer (e.g., CG type 1, type 2 PUSCH).

[0383] According to 3GPP TS 38.213 V16.4.0, the indication of DCI format 2_4 for the serving cell is applicable to PUSCH transmission or SRS transmission on the serving cell. If the PUSCH transmission or SRS transmission is scheduled by the DCI format, then the indication of DCI format 2_4 is applicable to the PUSCH transmission or SRS transmission (only) when the last symbol of the PDCCH reception providing the DCI format is earlier than the first symbol of the PDCCH reception providing the DCI format 2_4. Therefore, in order to cancel the UL transmission scheduled by the DCI, the first symbol of the PDCCH providing the DCI format 2_4 should be later than the last symbol of the DCI scheduling the UL transmission. If the first symbol of the PDCCH providing the DCI format 2_4 is earlier than the last symbol of the DCI scheduling the UL transmission, then the UL transmission may not be canceled based on the indication of DCI format 2_4.

[0384] From the network perspective, the network may not be able to schedule another UL transmission with a higher priority because failure to cancel the already scheduled UL transmission may cause interference to another scheduled UL transmission. In one embodiment, the UE may be respectively configured with one or more positions for one or more serving cells, wherein each position indicates a starting position of the ULCI of each corresponding serving cell.

[0385] The PDCCH providing DCI format 2_4 transmitted under PDCCH repetition better serves UEs with critical services and efficiently multiplexes UEs with different services, which may be beneficial. For example, a first PDCCH candidate providing DCI format 2_4 and a second PDCCH candidate may be associated / linked to each other in PDCCH repetition in one or more time slots. Under PDCCH repetition of the PDCCH providing DCI format 2_4, the UE can reliably detect the ULCI and meet the latency requirements of critical UL transmissions. Using different beams or spatial filters for PDCCH repetition of DCI format 2_4 can improve the reception reliability of DCI format 2_4.

[0386] In one embodiment, the PDCCH repetition on DCI format 2_4 may carry the same DCI format content (e.g., same cancellation indication, same ULCI). In this sense, one or more UEs may have a second chance to receive DCI format 2_4, and thus, even if one beam / spatial filter or channel path is blocked by an obstacle, the UE may receive DCI format 2_4 for grabbing ULCI through another beam / spatial filter.

[0387] For example, if Fig.21 As shown in , the first PDCCH candidate and the second PDCCH candidate providing DCI format 2_4 may be transmitted in a time slot with intra-slot PDCCH repetition. The third PDCCH candidate providing DCI for scheduling UL transmission may be transmitted in a time slot. The first PDCCH candidate may be transmitted in the first symbol of a time slot associated with a CORESET having a 1 symbol duration in a CSS. The second PDCCH candidate may be transmitted in the third symbol of a time slot associated with a CORESET having a 1 symbol duration in another CSS. The third PDCCH candidate may be transmitted in the second symbol of a time slot associated with a CORESET having a 1 symbol duration in a USS. Since the last symbol of the third PDCCH candidate is earlier than the first symbol of the second PDCCH candidate and later than the first symbol of the first PDCCH candidate in the time slot, the applicability of the indication of DCI format 2_4 to the UL transmission scheduled by the third PDCCH candidate may be uncertain.

[0388] For example, if Fig. 22 As shown in, the first PDCCH candidate and the second PDCCH candidate providing DCI format 2_4 may be transmitted in the case of PDCCH repetition within the time slot; and the first PDCCH candidate and the second PDCCH candidate may be transmitted in the first three symbols of the time slot in the cell. The third PDCCH candidate providing DCI for scheduling UL transmission may be transmitted in the time slot of another cell. The first PDCCH candidate may be transmitted in the first symbol of the first time slot in the first cell. The second PDCCH candidate may be transmitted in the third symbol of the first time slot in the first cell. The third PDCCH candidate may be transmitted in the first and second symbols of the first time slot in the second cell. The subcarrier spacing of the first cell and the second cell is the same. Since the last symbol of the third PDCCH candidate is earlier than the first symbol of the second PDCCH candidate and not earlier than the first symbol of the first PDCCH candidate, the applicability of the indication of DCI format 2_4 to the UL transmission scheduled by the third PDCCH candidate may be uncertain.

[0389] For example, if Fig.23As shown in, the first PDCCH candidate and the second PDCCH candidate providing DCI format 2_4 may be transmitted in the case of PDCCH repetition within the time slot; and the first PDCCH candidate and the second PDCCH candidate may be transmitted in the first three symbols of the time slot in the cell. The third PDCCH candidate providing DCI for scheduling UL transmission may be transmitted in the time slot of another cell. The first PDCCH candidate may be transmitted in the first symbol of the first time slot in the first cell. The second PDCCH candidate may be transmitted in the third symbol of the first time slot in the first cell. The third PDCCH candidate may be transmitted in the 4th and 5th symbols of the first time slot in the second cell. The subcarrier spacing of the first cell and the second cell may be 15kHz and 30kHz, respectively. In one embodiment, the subcarrier spacing of the active UL BWP of the first cell may be different from the subcarrier spacing of the active ULBWP of the second cell, because DCI format 2_4 may indicate the ULCI of the first cell and the second cell (e.g., cross-cell / carrier indication). Since the last symbol of the third PDCCH candidate is earlier than the first symbol of the second PDCCH candidate and not earlier than the first symbol of the first PDCCH candidate, the applicability of the indication of DCI format 2_4 to the UL transmission scheduled by the third PDCCH candidate may be uncertain.

[0390] The UE may receive a PDCCH candidate with PDCCH repetition providing DCI format 2_4 and a PDCCH candidate providing DCI for scheduling UL transmission. The UE may receive a first PDCCH candidate and a second PDCCH candidate and a third PDCCH candidate with PDCCH repetition. The first PDCCH candidate and the second PDCCH candidate may provide DCI format 2_4. The first PDCCH candidate and the second PDCCH candidate may be associated with each other / linked to each other. The ULCI provided by the DCI format 2_4 in the first PDCCH candidate may at least provide information that partially or completely overlaps with the ULCI provided by the DCI format 2_4 in the second PDCCH candidate. In one embodiment, the ULCI indicated by the DCI format 2_4 in the first PDCCH candidate may indicate the same information as the ULCI indicated by the DCI format 2_4 in the second PDCCH candidate. The UE may receive a configuration for monitoring the PDCCH candidates in the first CSS, the second CSS, and the first USS. The first PDCCH candidate may be associated with the first CSS. The second PDCCH candidate may be associated with the second CSS.

[0391] In one embodiment, the first CORESET may be associated with the first CSS. The second CORESET may be associated with the second CSS. The third PDCCH candidate may provide DCI for scheduling UL transmission. The third PDCCH candidate may be associated with the first USS. The third CORESET may be associated with the first USS.

[0392] In one embodiment, the UE may receive the first PDCCH candidate, the second PDCCH candidate, and the third PDCCH candidate within the first three symbols of the time slot. The UE may receive the first PDCCH candidate, the second PDCCH candidate, and the third PDCCH candidate in the time slot. The UE may receive the first PDCCH candidate within the first three symbols of the first time slot, may receive the second PDCCH candidate within the first three symbols in the second time slot, and may receive the third PDCCH candidate in the first time slot or the second time slot. The UE may receive the first PDCCH candidate and the second PDCCH candidate within the first three symbols of the time slot in the first serving cell, and may receive the third PDCCH candidate in the time slot in the second serving cell.

[0393] In one embodiment, the UE may receive a first PDCCH candidate that is earlier in time than the second PDCCH candidate. The UE may receive a first PDCCH candidate that is earlier than the third PDCCH candidate. The UE may receive a second PDCCH candidate that is later than the third PDCCH candidate. The first PDCCH candidate and the second PDCCH candidate may not overlap in time. The first PDCCH candidate may overlap with the third PDCCH candidate in time. The second PDCCH candidate may overlap with the third PDCCH candidate in time. The last symbol of the third PDCCH candidate may be earlier than the first symbol of the second PDCCH candidate. The last symbol of the third PDCCH candidate may not be earlier than the first symbol of the first PDCCH candidate. In one embodiment, the first PDCCH candidate and the second PDCCH candidate may be in the first serving cell. The third candidate PDCCH may be in the second serving cell.

[0394] In one embodiment, for a first PDCCH candidate and a second PDCCH candidate that are linked and provide DCI format 2_4, the UE may determine a reference PDCCH candidate in the time domain based on a later PDCCH candidate among the first and second PDCCH candidates. More specifically, the later PDCCH candidate may mean a first or second PDCCH candidate with a later end (OFDM) symbol. Alternatively, the later PDCCH candidate may mean a first or second PDCCH candidate with a later start (OFDM) symbol (e.g., a later first OFDM symbol of the PDCCH candidate).

[0395] In one embodiment, for a first PDCCH candidate and a second PDCCH candidate that are linked and provide DCI format 2_4, the UE may determine a reference PDCCH candidate in the time domain based on an earlier PDCCH candidate among the first and second PDCCH candidates. More specifically, an earlier PDCCH candidate may mean a first or second PDCCH candidate with an earlier end (OFDM) symbol. Alternatively, an earlier PDCCH candidate may mean a first or second PDCCH candidate with an earlier start (OFDM) symbol (e.g., a later first OFDM symbol of a PDCCH candidate).

[0396] In one embodiment, for the first PDCCH candidate and the second PDCCH candidate that are linked and provide DCI format 2_4, the UE can determine whether the ULCI of the serving cell is applicable for PUSCH transmission or SRS transmission on the serving cell based on the reference PDCCH candidate.

[0397] In one embodiment, the indication of DCI format 2_4 for the serving cell may be applicable to PUSCH transmission or SRS transmission on the serving cell. If the PUSCH transmission or SRS transmission is scheduled by DCI, the indication of DCI format 2_4 may be applicable to PUSCH transmission or SRS transmission when the last symbol of the PDCCH reception providing the DCI is earlier than the first symbol of the first PDCCH candidate in the PDCCH repetition providing the DCI format 2_4, and the DCI format may be the DCI format 2_4 that is earlier in time among the DCI format 2_4 repetitions.

[0398] In one embodiment, the UE may receive an indication of providing ULCI via a first PDCCH candidate and a second PDCCH candidate having PDCCH repetitions. The indication of the first PDCCH candidate and the second PDCCH candidate providing DCI format 2_4 for the serving cell may be applicable to PUSCH transmission or SRS transmission on the serving cell. If the UE receives a PUSCH transmission or SRS transmission by providing a third PDCCH candidate of DCI scheduling UL transmission, the indication of the first PDCCH candidate and the second PDCCH candidate is applicable to the PUSCH transmission or SRS transmission scheduled by the third PDCCH candidate if the UE receives the first PDCCH candidate and the third PDCCH candidate such that the last symbol of the third PDCCH candidate is received earlier than the first symbol of the first PDCCH candidate or if the UE receives the first PDCCH candidate and the third PDCCH candidate such that the last symbol of the third PDCCH candidate is received earlier than the first symbol of the second PDCCH candidate.

[0399] Fig.242400 according to an exemplary embodiment from the perspective of a UE. In step 2405, the UE receives an indication of an uplink cancellation indication (ULCI) by detecting a first group common PDCCH and a second group common PDCCH in a PDCCH repetition on a first cell, wherein the first PDCCH and the second PDCCH end with different symbols, the first PDCCH and the second PDCCH are in a time slot, and the indication of the ULCI corresponds to at least the first cell and the second cell. In step 2410, the UE receives a third PDCCH scheduling UL transmission on a second cell, wherein the third PDCCH ends between a first PDCCH candidate and a second PDCCH candidate. In step 2415, the UE determines whether the indication of the ULCI is applicable to UL transmission based on whether at least the third PDCCH ends earlier than the first symbol of the earlier PDCCH among the first and second PDCCHs. In step 2420, the UE performs UL transmission in response to the determination that the indication of the ULCI is not applicable to UL transmission.

[0400] In one embodiment, the first PDCCH may be associated with or may provide DCI format 2_4. The second PDCCH may be associated with or may provide DCI format 2_4. The first PDCCH and the second PDCCH may be associated with or linked to each other. In one embodiment, both the first and second PDCCHs may end at the first three symbols of the time slot.

[0401] In one embodiment, the first PDCCH may be associated with a type-3 common search space (CSS). The second PDCCH may be associated with a type-3 CSS. The third PDCCH may provide a DCI format for scheduling UL transmissions. The third PDCCH may be associated with a UE-specific search space (USS).

[0402] In one embodiment, the UL transmission may be a PUSCH transmission or an SRS transmission. The subcarrier spacing (SCS) of the active bandwidth part (Bandwidth Part, BWP) of the first cell may be different from the SCS of the active BWP of the second cell.

[0403] Return to reference Figure 3 and 4In an exemplary embodiment of the UE, the UE 300 includes a program code 312 stored in the memory 310. The CPU 308 can execute the program code 312 to enable the UE to (i) receive an indication of ULCI by detecting a first group common PDCCH and a second group common PDCCH in a PDCCH repetition on a first cell, wherein the first PDCCH and the second PDCCH end with different symbols, the first PDCCH and the second PDCCH are in a time slot, and the indication of ULCI corresponds to at least the first cell and the second cell; (ii) receive a third PDCCH scheduling UL transmission on the second cell, wherein the third PDCCH ends between the first PDCCH candidate and the second PDCCH candidate; (iii) determine whether the indication of ULCI is applicable to UL transmission based on whether at least the third PDCCH ends earlier than the first symbol of the earlier PDCCH among the first and second PDCCHs; and (iv) perform UL transmission in response to the determination that the indication of ULCI is not applicable to UL transmission. In addition, the CPU 308 can execute the program code 312 to perform all of the above actions and steps or other actions and steps described herein.

[0404] Any combination of the above concepts can be combined or formed into new embodiments. The following embodiments can be used to at least (but not limited to) solve the above-mentioned problems.

[0405] Various aspects of the present disclosure have been described above. It should be clear 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, using any number of aspects set forth herein, a device can be implemented or a method can be practiced. In addition, using other structures, functionality, or structures and functionality other than one or more aspects of the aspects set forth herein or different from one or more aspects of the aspects set forth herein, this device can be implemented or this method can be practiced. As an example of some of the above concepts, in some aspects, parallel channels can be established based on pulse repetition frequencies. In some aspects, parallel channels can be established based on pulse positions or offsets. 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 frequencies, pulse positions or offsets, and time hopping sequences.

[0406] Those skilled in the art will understand 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.

[0407] Those skilled 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 that may be designed using source decoding or some other technique), various forms of program or design code incorporating instructions (which may be referred to herein as "software" or "software modules" for convenience), or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether this functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Those skilled 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.

[0408] In addition, the various illustrative logical blocks, modules, and circuits described in conjunction with the 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; however, 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, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0409] 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 elements of the various steps in an exemplary order and are not meant to be limited to the specific order or hierarchy presented.

[0410] 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 can 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 can be coupled to a machine such as a computer / processor (for convenience, the machine can 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 can be integrated with the processor. The processor and the storage medium can reside in an ASIC. The ASIC can reside in a user device. In an alternative, the processor and the storage medium can reside in a user device as discrete components. In addition, in some aspects, any suitable computer program product may include a computer-readable medium, and the computer-readable medium includes a code related to one or more aspects of the present disclosure. In some aspects, the computer program product may include packaging materials.

[0411] Although the present invention has been described in conjunction with various aspects, it will be appreciated that the present invention is capable of further modification. This application is intended to cover any changes, uses or adaptations of the present invention that generally follow the principles of the present invention and include such deviations from the present disclosure that are within the scope of known and customary practice in the technical field to which the present invention belongs.

Claims

1. A method for a network, characterized in that, include: transmitting the semi-persistent scheduling configuration to the user equipment for configuring the second physical downlink shared channel; transmitting a configuration to the user equipment for configuring a first listening occasion of a first physical downlink control channel and a second listening occasion of a second physical downlink control channel, wherein the second physical downlink control channel is associated with the first physical downlink control channel; and The first physical downlink control channel and the second physical downlink control channel are not allowed to schedule the user equipment by partially or completely overlapping the first physical downlink shared channel with the second physical downlink shared channel in the time domain, wherein the last symbol of the later listening opportunity between the first listening opportunity and the second listening opportunity ends less than a processing threshold before the start symbol of the second physical downlink shared channel.

2. The method according to claim 1, characterized in that When the last symbol of the later listening opportunity among the first listening opportunity and the second listening opportunity ends at least the processing threshold before the start symbol of the second physical downlink shared channel, the network does not transmit the second physical downlink shared channel.

3. The method according to claim 1, characterized in that The first listening opportunity and the second listening opportunity are earlier than the second physical downlink shared channel.

4. The method according to claim 1, characterized in that The processing threshold is 14 OFDM symbols, and / or the processing threshold is associated with receiving and / or decoding a physical downlink control channel, and / or the processing threshold is fixed.

5. The method according to claim 1, characterized in that The later listening opportunity between the first listening opportunity and the second listening opportunity corresponds to a listening opportunity that ends later between the first listening opportunity and the second listening opportunity.

6. The method according to claim 1, characterized in that The network transmits the first physical downlink control channel via a first beam or using a first quasi co-location assumption with a first reference signal, and / or The network transmits the second physical downlink control channel via a second beam or using a second quasi co-location assumption with a second reference signal, and / or The first reference signal is the same as or different from the second reference signal.

7. The method according to claim 1, characterized in that The first physical downlink shared channel is scrambled or associated with a cell radio network temporary identifier, a configured scheduling radio network temporary identifier or a modulation and coding scheme radio network temporary identifier, and / or The first physical downlink control channel is scrambled or associated with a cell radio network temporary identifier or a modulation and coding scheme radio network temporary identifier, and / or The second physical downlink control channel is scrambled or associated with a cell radio network temporary identifier or a modulation and coding scheme radio network temporary identifier, and / or The first physical downlink control channel delivers or carries downlink control information, and the downlink control information has the same scheduling information as the downlink control information delivered or carried by the second physical downlink control channel.

8. The method according to claim 1, characterized in that The second physical downlink shared channel is not scheduled by a third physical downlink control channel or there is no dynamically scheduled physical downlink control channel for the second physical downlink shared channel.

9. The method according to claim 1, characterized in that: When only the earlier listening opportunity between the first physical downlink control channel listening opportunity and the second physical downlink control channel listening opportunity ends at least the processing threshold before the start symbol of the second physical downlink shared channel, the network is not allowed to transmit the first physical downlink shared channel that partially or completely overlaps with the second physical downlink shared channel in the time domain.

10. A method for a user device, characterized in that: include: receiving a semi-persistent scheduling configuration from a network for configuring a second physical downlink shared channel; receiving, from the network, a configuration for configuring a first listening occasion of a first physical downlink control channel and a second listening occasion of a second physical downlink control channel, wherein the second physical downlink control channel is associated with the first physical downlink control channel; and When the last symbol of the later listening opportunity between the first listening opportunity and the second listening opportunity ends at least at a processing threshold before the start symbol of the second physical downlink shared channel, a first physical downlink shared channel scheduled by the first physical downlink control channel and the second physical downlink control channel is received or decoded, wherein the first physical downlink shared channel partially or completely overlaps with the second physical downlink shared channel in the time domain.

11. The method according to claim 10, characterized in that When the last symbol of the later listening opportunity between the first listening opportunity and the second listening opportunity ends at least at the processing threshold before the starting symbol of the second physical downlink shared channel, the user equipment does not receive or decode the second physical downlink shared channel and / or receives or decodes the first physical downlink shared channel.

12. The method according to claim 10, characterized in that When the last symbol of the later listening opportunity between the first listening opportunity and the second listening opportunity does not end at least before the starting symbol of the second physical downlink shared channel by the processing threshold, the user equipment does not receive or decode the first physical downlink shared channel and / or receives or decodes the second physical downlink shared channel.

13. The method according to claim 10, characterized in that When only the first listening opportunity ends at least the processing threshold before the start symbol of the second physical downlink shared channel, the user equipment does not receive or decode the first physical downlink shared channel and / or receives or decodes the second physical downlink shared channel.

14. The method according to claim 10, characterized in that The first listening opportunity and the second listening opportunity are earlier than the second physical downlink shared channel.

15. The method according to claim 10, characterized in that The processing threshold is 14 OFDM symbols, and / or The processing threshold is associated with physical downlink control channel reception and / or decoding and / or the processing threshold is fixed.

16. The method according to claim 10, characterized in that The later listening opportunity between the first listening opportunity and the second listening opportunity corresponds to a listening opportunity that ends later between the first listening opportunity and the second listening opportunity.

17. The method according to claim 10, characterized in that The user equipment receives the first physical downlink control channel via a first beam or using a first quasi co-location with a first reference signal, and / or The user equipment receives the second physical downlink control channel via a second beam or using a second quasi co-location assumption with a second reference signal, and / or The first reference signal is the same as or different from the second reference signal.

18. The method according to claim 10, characterized in that The first physical downlink shared channel is scrambled or associated with a cell radio network temporary identifier, a configured scheduling radio network temporary identifier or a modulation and coding scheme radio network temporary identifier, and / or The first physical downlink control channel is scrambled or associated with a cell radio network temporary identifier or a modulation and coding scheme radio network temporary identifier, and / or The second physical downlink control channel is scrambled or associated with a cell radio network temporary identifier or a modulation and coding scheme radio network temporary identifier, and / or The first physical downlink control channel delivers or carries downlink control information, and the downlink control information has the same scheduling information as the downlink control information delivered or carried by the second physical downlink control channel.

19. The method according to claim 10, characterized in that The second physical downlink shared channel is not scheduled by a third physical downlink control channel or wherein there is no dynamically scheduled physical downlink control channel for the second physical downlink shared channel.

20. A network device, characterized in that: include: Control circuit; a processor installed in the control circuit; as well as a memory installed in the control circuit and operatively coupled to the processor; wherein the processor is configured to execute program code stored in the memory to: transmitting the semi-persistent scheduling configuration to the user equipment for configuring the second physical downlink shared channel; transmitting a configuration to the user equipment for configuring a first listening occasion of a first physical downlink control channel and a second listening occasion of a second physical downlink control channel, wherein the second physical downlink control channel is associated with the first physical downlink control channel; and The first physical downlink control channel and the second physical downlink control channel are not allowed to schedule the user equipment by partially or completely overlapping the first physical downlink shared channel with the second physical downlink shared channel in the time domain, wherein the last symbol of the later listening opportunity between the first listening opportunity and the second listening opportunity ends less than a processing threshold before the start symbol of the second physical downlink shared channel.

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