Method for relaxed UE processing time

Abstract

A wireless communication method for use in a wireless terminal is disclosed. The wireless communication method includes transmitting information associated with user equipment (UE) capabilities to a wireless network node; determining a UE processing time based on the information and a first condition; and performing at least one transmission based on the UE processing time, wherein the UE processing time includes one of a first UE processing time, a second UE processing time, or a third UE processing time.

Description

[0001] Divisional application

[0002] This application is a divisional application of application number 202080103931.8, filing date August 14, 2020, and titled “Method for Relaxing UE Processing Time”. Technical Field

[0003] This document relates generally to wireless communications. Background Art

[0004] With the advancement of wireless communication technology, the use of high-frequency bands, large bandwidths, multiple antennas, and / or other technologies has significantly improved the transmission rate, latency, throughput, and reliability of wireless communication systems. However, to achieve high-performance wireless transmission, terminals must perform more complex processing to meet these requirements. For example, these processes must monitor larger control channel bandwidths and encode and decode more complex control and data information. Terminal power consumption impacts the user experience. Therefore, energy conservation in terminals is a critical issue that needs to be addressed in wireless communication systems. Summary of the Invention

[0005] This document relates to methods, systems, and devices for implementing relaxed UE processing time.

[0006] The present disclosure relates to a wireless communication method used in a wireless terminal. The wireless communication method includes:

[0007] Sending information associated with User Equipment (UE) capabilities to a radio network node,

[0008] determining a UE processing time based on the information and the first condition, and

[0009] performing at least one transmission based on the UE processing time,

[0010] The UE processing time includes one of a first UE processing time, a second UE processing time, or a third UE processing time.

[0011] Various embodiments may preferably implement the following features:

[0012] Preferably, the second UE processing time is greater than at least one of the first UE processing time or the third UE processing time.

[0013] Preferably, the second UE processing time is greater than the first UE processing time and less than 10 times the first UE processing time.

[0014] Preferably, the second UE processing time is greater than or equal to 2 times the third UE processing time and less than 20 times the third UE processing time.

[0015] Preferably, each UE processing time includes at least one of the following: physical downlink shared channel (PDSCH) processing time, physical uplink shared channel (PUSCH) preparation process time, medium access control control element (MAC CE) processing time, channel state information (CSI) calculation time or physical downlink control channel (PDCCH) decoding time.

[0016] Preferably, the PDSCH processing time corresponding to the second UE processing time is associated with at least one of the following: a PDSCH dedicated demodulation reference signal (DMRS), a subcarrier spacing (SCS), a PDSCH mapping type, a frequency range (FR) type, high-layer signaling, a PDSCH processing time corresponding to the first UE processing time, a user equipment UE capability of the wireless terminal, a UE type of the wireless terminal, a UE category of the wireless terminal, or a scaling factor.

[0017] Preferably, the PDSCH processing time is positively correlated with the SCS.

[0018] Preferably, the PDSCH processing time corresponding to the first SCS is greater than or equal to 1.1 times the PDSCH processing time corresponding to the second SCS and less than 10 times the PDSCH processing time corresponding to the second SCS, and the first SCS is greater than the second SCS.

[0019] Preferably, the UE processing time includes the PDSCH processing time of the second UE processing time, the first time period associated with the second UE processing time is greater than the first time period associated with the first UE processing time, and the first time period is associated with the UE processing time and includes at least one of the following: the minimum time between the last symbol of the PDSCH corresponding to the System Information Radio Network Temporary Identifier (SI-RNTI) and the start symbol of the retransmission of the PDSCH before the PDSCH, the duration from the last symbol of the PDCCH to the first symbol of the corresponding Hybrid Automatic Repeat Request Acknowledge (HARQ-ACK) information, the duration between the last symbol of the second downlink control information (DCI) indicating the second resource of the PUCCH and the first symbol of the PUCCH resource indicated by the first DCI, the duration of the wireless terminal multiplexing the HARQ-ACK information corresponding to the second DCI format in the PUCCH resource, or the duration of the Physical Random Access Channel (PRACH) process.

[0020] Preferably, the PUSCH preparation process time corresponding to the second UE processing time is associated with at least one of the following: SCS, the PUSCH preparation process time corresponding to the first UE processing time, the UE capability of the wireless terminal, the UE type of the wireless terminal, the UE category of the wireless terminal, high-layer signaling or FR type.

[0021] Preferably, the PUSCH processing time corresponding to the first SCS is greater than or equal to 1.1 times the PUSCH processing time corresponding to the second SCS and less than 10 times the PUSCH processing time corresponding to the second SCS, and wherein the first SCS is greater than the second SCS.

[0022] Preferably, the UE processing time includes a PUSCH processing time of a second UE processing time, the second time period associated with the second UE processing time is greater than the second time period associated with the first UE processing time, and the second time period is associated with the UE processing time and includes at least one of the following: a time period between the PDCCH and the corresponding PRACH, or a time period between a time slot for receiving a timing advance command and an uplink transmission for applying the timing advance command.

[0023] Preferably, the MAC CE processing time corresponding to the second UE processing time is associated with at least one of: the number of slots per subframe, the MAC CE processing time corresponding to the first UE processing time, a predefined value, UE capability or higher layer signaling.

[0024] Preferably, the UE processing time includes a MAC CE processing time of a second UE processing time, a third time period associated with the second UE processing time is greater than a third time period associated with the first UE processing time, and the third time period is associated with the UE processing time and is between a PUCCH having HARQ-ACK information corresponding to a PDSCH and a time slot to which an indication carried by the PDSCH is applied.

[0025] Preferably, the indication includes at least one of the following: an activation command indicating a mapping between a transmission configuration state and a code point of a field in the DCI, the indication including an activation command indicating a semi-persistent reporting setting, an activation command of a secondary cell, or the indication including a deactivation command indicating at least one of a semi-persistent CSI reference signal resource set deactivation or a CSI interference measurement resource set deactivation.

[0026] Preferably, the CSI calculation time corresponding to the second UE processing time is associated with at least one of the following: the reported amount of CSI, the UE capability of the wireless terminal, high-layer signaling, the reporting index of CSI, SCS, the frequency granularity of CSI, or the number of simultaneous CSI calculations supported by the wireless terminal.

[0027] Preferably, the PDCCH decoding time corresponding to the second UE processing time is associated with the SCS, the control resource set (CORSET), the search space set, the DCI format, the radio network temporary identifier (RNTI), the UE capability of the wireless terminal, the UE type of the wireless terminal, a predefined value, high-layer signaling or the UE category of the wireless terminal.

[0028] Preferably, the UE processing time includes the PDCCH decoding time processing time of the second UE processing time, the fourth time period associated with the second UE processing time is greater than the fourth time period associated with the first UE processing time, and the fourth time period associated with the UE processing time includes at least one of the following: bandwidth part (Bandwidth Part, BWP) switching delay time, beam switching time, beam reporting time, time slot format indication (Slot Format Indication, SFI) application time, channel occupancy (Channel Occupancy, CO) application time, quasi co-location (Quasi Co-Location, QCL) duration, search space switching application time, cross-slot scheduling application delay time, minimum time gap, energy saving offset.

[0029] Preferably, the first condition is associated with at least one of: higher layer signaling, UE capability, UE type, UE category, DCI, radio network temporary identifier, modulation order, BWP, transport block size, CORESET, search space set, or at least one of the sequence, resource or format of the random access preamble.

[0030] Preferably, the UE capability indicates support for the second UE processing time, the higher layer signaling indicates enabling the second UE processing time, and the UE processing time includes the second UE processing time.

[0031] Preferably, the UE capability indication supports the third UE processing time, the higher layer signaling indicates that the third UE processing time is enabled, and the UE processing time includes the third UE processing time.

[0032] Preferably, the UE capability indicates that the third UE processing time is not supported, the higher layer signaling indicates that the third UE processing time is not enabled, and the UE processing time includes the first UE processing time.

[0033] Preferably, the first condition is associated with at least one of the DCI or the modulation order of the scheduled PDSCH, and the DCI indicates that the modulation order is greater than a threshold and the UE processing time includes a first UE processing time or a third UE processing time, or the DCI indicates that the modulation order is less than or equal to a threshold and the UE processing time includes a second UE processing time.

[0034] Preferably, the bandwidth of the BWP is greater than the threshold and the UE processing time includes the first UE processing time or the third UE processing time, or the bandwidth of the BWP is less than or equal to the threshold and the UE processing time includes the second UE processing time.

[0035] Preferably, the first condition of the wireless terminal is associated with a predefined UE category, and the UE processing time refers to a second UE processing time.

[0036] Preferably, the predefined UE category includes reduced capability UEs.

[0037] Preferably, the predefined UE category is associated with the bandwidth supported by the wireless terminal, the maximum multiple-input multiple-output layers, the maximum rank, the number of ports, the maximum number of HARQ processes, the maximum modulation order, the maximum code rate, the maximum number of bits received in one period, the maximum number of bits of the transport blocks received in one period, the maximum number of transport blocks received in one period, the maximum number of bits sent in one period, the maximum number of bits of the transport blocks sent in one period, the maximum number of transport blocks sent in one period, the maximum data rate, the number of soft channel bits, the buffer size or the duplex mode.

[0038] Preferably, the UE processing time includes a second UE processing time, at least one value range associated with the second UE processing time is greater than at least one value range associated with the first UE processing time, and the at least one value range associated with the second UE processing time is applied to at least one of the following: a first time slot offset between the first DCI and the PDSCH scheduled by the first DCI, a second time slot offset between the second DCI and the PUSCH scheduled by the second DCI, a minimum value of the first time slot offset, a minimum value of the second time slot offset, a third time slot offset between the PDSCH and the HARQ, a non-periodic CSI reference signal trigger offset, or a sounding reference signal offset, and the at least one value range associated with the first UE processing time is applied to at least one of the following: the first time slot offset, the second time slot offset, the minimum value of the first time slot offset, the minimum value of the second time slot offset, the third time slot offset, the non-periodic CSI reference signal trigger offset, or a sounding reference signal offset.

[0039] The present disclosure relates to a wireless communication method used in a wireless network node. The wireless communication method includes:

[0040] receiving information associated with User Equipment (UE) capabilities from a wireless terminal,

[0041] determining a UE processing time based on the information and the first condition, and

[0042] performing at least one transmission based on the UE processing time,

[0043] The UE processing time includes one of a first UE processing time, a second UE processing time, or a third UE processing time.

[0044] Various embodiments may preferably implement the following features:

[0045] Preferably, the wireless communication method further comprises sending a higher layer signaling to the wireless terminal, wherein the higher layer signaling indicates one of the first UE processing time, the second UE processing time or the third UE processing time as the UE processing time.

[0046] Preferably, the second UE processing time is greater than at least one of the first UE processing time or the third UE processing time.

[0047] Preferably, the second UE processing time is greater than the first UE processing time and less than 10 times the first UE processing time.

[0048] Preferably, the second UE processing time is greater than or equal to 2 times the third UE processing time and less than 20 times the third UE processing time.

[0049] Preferably, each UE processing time includes at least one of the following: physical downlink shared channel (PDSCH) processing time, physical uplink shared channel (PUSCH) preparation process time, medium access control control element (MAC CE) processing time, channel state information (CSI) calculation time or physical downlink control channel (PDCCH) decoding time.

[0050] Preferably, the PDSCH processing time corresponding to the second UE processing time is associated with at least one of the following: a PDSCH dedicated demodulation reference signal (DMRS), a subcarrier spacing (SCS), a PDSCH mapping type, a frequency range (FR) type, high-layer signaling, a PDSCH processing time corresponding to the first UE processing time, a user equipment UE capability of the wireless terminal, a UE type of the wireless terminal, a UE category of the wireless terminal, or a scaling factor.

[0051] Preferably, the PDSCH processing time is positively correlated with the SCS.

[0052] Preferably, the PDSCH processing time corresponding to the first SCS is greater than or equal to 1.1 times the PDSCH processing time corresponding to the second SCS and less than 10 times the PDSCH processing time corresponding to the second SCS, and the first SCS is greater than the second SCS.

[0053] Preferably, the UE processing time includes the PDSCH processing time of the second UE processing time, the first time period associated with the second UE processing time is greater than the first time period associated with the first UE processing time, and the first time period is associated with the UE processing time and includes at least one of the following: the minimum time between the last symbol of the PDSCH corresponding to the System Information Radio Network Temporary Identifier (SI-RNTI) and the start symbol of the retransmission of the PDSCH before the PDSCH, the duration from the last symbol of the PDCCH to the first symbol of the corresponding Hybrid Automatic Repeat Request Acknowledge (HARQ-ACK) information, the duration between the last symbol of the second downlink control information (DCI) indicating the second resource of the PUCCH and the first symbol of the PUCCH resource indicated by the first DCI, the duration of the wireless terminal multiplexing the HARQ-ACK information corresponding to the second DCI format in the PUCCH resource, or the duration of the Physical Random Access Channel (PRACH) process.

[0054] Preferably, the PUSCH preparation process time corresponding to the second UE processing time is associated with at least one of the following: SCS, the PUSCH preparation process time corresponding to the first UE processing time, the UE capability of the wireless terminal, the UE type of the wireless terminal, the UE category of the wireless terminal, high-layer signaling or FR type.

[0055] Preferably, the PUSCH processing time corresponding to the first SCS is greater than or equal to 1.1 times the PUSCH processing time corresponding to the second SCS and less than 10 times the PUSCH processing time corresponding to the second SCS, and wherein the first SCS is greater than the second SCS.

[0056] Preferably, the UE processing time includes a PUSCH processing time of a second UE processing time, the second time period associated with the second UE processing time is greater than the second time period associated with the first UE processing time, and the second time period is associated with the UE processing time and includes at least one of the following: a time period between the PDCCH and the corresponding PRACH, or a time period between a time slot for receiving a timing advance command and an uplink transmission for applying the timing advance command.

[0057] Preferably, the MAC CE processing time corresponding to the second UE processing time is associated with at least one of: the number of slots per subframe, the MAC CE processing time corresponding to the first UE processing time, a predefined value, UE capability or higher layer signaling.

[0058] Preferably, the UE processing time includes a MAC CE processing time of a second UE processing time, a third time period associated with the second UE processing time is greater than a third time period associated with the first UE processing time, and the third time period is associated with the UE processing time and is between a PUCCH having HARQ-ACK information corresponding to a PDSCH and a time slot to which an indication carried by the PDSCH is applied.

[0059] Preferably, the indication includes at least one of the following: an activation command indicating a mapping between a transmission configuration state and a code point of a field in the DCI, the indication including an activation command indicating a semi-persistent reporting setting, an activation command of a secondary cell, or the indication including a deactivation command indicating at least one of a semi-persistent CSI reference signal resource set deactivation or a CSI interference measurement resource set deactivation.

[0060] Preferably, the CSI calculation time corresponding to the second UE processing time is associated with at least one of the following: the reported amount of CSI, the UE capability of the wireless terminal, high-layer signaling, the reporting index of CSI, SCS, the frequency granularity of CSI, or the number of simultaneous CSI calculations supported by the wireless terminal.

[0061] Preferably, the PDCCH decoding time corresponding to the second UE processing time is associated with the SCS, the control resource set (CORSET), the search space set, the DCI format, the radio network temporary identifier (RNTI), the UE capability of the wireless terminal, the UE type of the wireless terminal, a predefined value, high-layer signaling or the UE category of the wireless terminal.

[0062] Preferably, the UE processing time includes the PDCCH decoding time processing time of the second UE processing time, the fourth time period associated with the second UE processing time is greater than the fourth time period associated with the first UE processing time, and the fourth time period associated with the UE processing time includes at least one of the following: bandwidth part (Bandwidth Part, BWP) switching delay time, beam switching time, beam reporting time, time slot format indication (Slot Format Indication, SFI) application time, channel occupancy (Channel Occupancy, CO) application time, quasi co-location (Quasi Co-Location, QCL) duration, search space switching application time, cross-slot scheduling application delay time, minimum time gap, energy saving offset.

[0063] Preferably, the first condition is associated with at least one of: higher layer signaling, UE capability, UE type, UE category, DCI, radio network temporary identifier, modulation order, BWP, transport block size, CORESET, search space set, or at least one of the sequence, resource or format of the random access preamble.

[0064] Preferably, the UE capability indicates support for the second UE processing time, the higher layer signaling indicates enabling the second UE processing time, and the UE processing time includes the second UE processing time.

[0065] Preferably, the UE capability indication supports the third UE processing time, the higher layer signaling indicates that the third UE processing time is enabled, and the UE processing time includes the third UE processing time.

[0066] Preferably, the UE capability indicates that the third UE processing time is not supported, the higher layer signaling indicates that the third UE processing time is not enabled, and the UE processing time includes the first UE processing time.

[0067] Preferably, the first condition is associated with at least one of the DCI or the modulation order of the scheduled PDSCH, and the DCI indicates that the modulation order is greater than a threshold and the UE processing time includes a first UE processing time or a third UE processing time, or the DCI indicates that the modulation order is less than or equal to a threshold and the UE processing time includes a second UE processing time.

[0068] Preferably, the bandwidth of the BWP is greater than the threshold and the UE processing time includes the first UE processing time or the third UE processing time, or the bandwidth of the BWP is less than or equal to the threshold and the UE processing time includes the second UE processing time.

[0069] Preferably, the first condition of the wireless terminal is associated with a predefined UE category, and the UE processing time refers to a second UE processing time.

[0070] Preferably, the predefined UE category includes reduced capability UEs.

[0071] Preferably, the predefined UE category is associated with the bandwidth supported by the wireless terminal, the maximum multiple-input multiple-output layers, the maximum rank, the number of ports, the maximum number of HARQ processes, the maximum modulation order, the maximum code rate, the maximum number of bits received in one period, the maximum number of bits of the transport blocks received in one period, the maximum number of transport blocks received in one period, the maximum number of bits sent in one period, the maximum number of bits of the transport blocks sent in one period, the maximum number of transport blocks sent in one period, the maximum data rate, the number of soft channel bits, the buffer size or the duplex mode.

[0072] Preferably, the UE processing time includes a second UE processing time, at least one value range associated with the second UE processing time is greater than at least one value range associated with the first UE processing time, and the at least one value range associated with the second UE processing time is applied to at least one of the following: a first time slot offset between the first DCI and the PDSCH scheduled by the first DCI, a second time slot offset between the second DCI and the PUSCH scheduled by the second DCI, a minimum value of the first time slot offset, a minimum value of the second time slot offset, a third time slot offset between the PDSCH and the HARQ, a non-periodic CSI reference signal trigger offset, or a sounding reference signal offset, and the at least one value range associated with the first UE processing time is applied to at least one of the following: the first time slot offset, the second time slot offset, the minimum value of the first time slot offset, the minimum value of the second time slot offset, the third time slot offset, the non-periodic CSI reference signal trigger offset, or a sounding reference signal offset.

[0073] The present disclosure relates to a wireless terminal, comprising:

[0074] a communication unit configured to send information associated with user equipment (UE) capabilities to a radio network node, and

[0075] Processor, configured as:

[0076] determining a UE processing time based on the information and the first condition, and

[0077] performing at least one transmission based on the UE processing time,

[0078] The UE processing time includes one of a first UE processing time, a second UE processing time, or a third UE processing time.

[0079] Various embodiments may preferably implement the following features:

[0080] Preferably, the processor is further configured to execute any one of the wireless communication methods mentioned above.

[0081] The present disclosure relates to a wireless network node, comprising:

[0082] a communication unit configured to receive information associated with user equipment (UE) capabilities from a wireless terminal, and

[0083] Processor, configured as:

[0084] determining a UE processing time based on the information and the first condition, and

[0085] performing at least one transmission based on the UE processing time,

[0086] The UE processing time includes one of a first UE processing time, a second UE processing time, or a third UE processing time.

[0087] Various embodiments may preferably implement the following features:

[0088] Preferably, the processor is further configured to execute any one of the wireless communication methods mentioned above.

[0089] The present disclosure relates to a computer program product, including a computer-readable program medium code stored thereon, which, when executed by a processor, causes the processor to implement any one of the aforementioned wireless communication methods.

[0090] The exemplary embodiments disclosed herein are intended to provide features that will become apparent by reference to the following description in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of example and not limitation, and it will be apparent to those of ordinary skill in the art reading this disclosure that various modifications may be made to the disclosed embodiments without departing from the scope of this disclosure.

[0091] Therefore, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. Furthermore, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary methods. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be rearranged without departing from the scope of the present disclosure. Therefore, it will be understood by those of ordinary skill in the art that the methods and techniques disclosed herein present various steps or actions in an example order, and that the present disclosure is not limited to the specific order or hierarchy presented, unless expressly stated otherwise. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] The above and other aspects and implementations thereof are described in more detail in the drawings, the description, and the claims.

[0093] Figure 1A - Figure C shows different processing times according to an embodiment of the present disclosure;

[0094] Figure 2 An example of a schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown;

[0095] Figure 3 An example of a schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown;

[0096] Figure 4 FIG. 1 shows a timing diagram related to downlink control information and a physical uplink control channel according to an embodiment of the present disclosure;

[0097] Figure 5 A flowchart illustrating a process according to an embodiment of the present disclosure is shown;

[0098] Figure 6 A flow chart illustrating a process according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0099] In Long-Term Evolution (LTE) and New Radio (NR), Discontinuous Reception (DRX) can be used to save energy in terminals (or user equipment (UE)).

[0100] The basic mechanism of DRX is to configure a DRX cycle for the UE, and the drx-ondurationTimer starts from the beginning of the DRX cycle. During the drx-ondurationTimer, the UE is in the 'DRX On' state and continuously monitors the Physical Downlink Control Channel (PDCCH). If the UE successfully decodes the PDCCH, the UE remains awake (in the 'DRX On' state) and starts the inactivity timer. After the drx-ondurationTimer or drx activityTimer expires, the UE can go to sleep (in the 'DRX Off' state). In the 'DRX Off' state, the UE does not monitor the PDCCH to save energy.

[0101] In NR, more energy-saving technologies are proposed. For example, downlink control information (DCI) format 2_6 is used to notify one or more UEs of energy-saving information (e.g., wake-up indication) outside the DRX activation time; the fields of DCI formats 0_1 and 1_1 can be used to indicate the minimum applicable scheduling offset (cross-slot scheduling), and DCI formats 0_1 or 1_1 or 2_6 can be used to indicate secondary cell (SCel l) sleep, etc.

[0102] However, the UE still needs to follow the physical downlink shared channel (PDSCH) processing time N1 and / or the physical uplink shared channel (PUSCH) preparation process time N2 to process data, and the energy saving gain is limited.

[0103] refer to Figure 1A -C, describes the existing processing time in more detail. Figure 1A The figure shows the PDSCH processing time N1. Figure 1B The figure shows the PUSCH preparation process time N2. Figure 1C The figure shows the Medium Access Control (MAC) Control Element (CE) processing time. In addition, the CSI calculation time and PDCCH decoding time are briefly described below.

[0104] The PDSCH processing time N1 is related to the number of PDSCH symbols processed by the UE. Specifically, the PDSCH processing time N1 is a parameter used to calculate the minimum time gap between the end of the last PDSCH symbol carrying the acknowledged transport block (TB) and the first uplink symbol of the Physical Uplink Control Channel (PUCCH) carrying the Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) information.

[0105] Table 1 shows the first type of UE processing time for PDSCH and the third type of UE processing time for PDSCH.

[0106] Table 1:

[0107]

[0108] In Table 1, if the PDSCH DM-RS position l of the additional DM-RS is l=12, then N 1,0 =14; otherwise N 1.0 =13.

[0109] The PUSCH preparation process time N2 is the number of symbols. Specifically, the PUSCH preparation process time N2 is used to calculate the minimum time interval between the end position of the last symbol of the PDCCH carrying the downlink control information (DCI) for scheduling the PUSCH and the first uplink symbol in the PUSCH.

[0110] Table 2 shows the first UE processing time of the PUSCH preparation time and the third UE processing time of the PUSCH preparation time.

[0111] Table 2:

[0112]

[0113] MAC CE processing time ( Figure 1C The application time in (i) is related to the time between the PUCCH with HARQ-ACK information and the time slot in which the command carried by the PDSCH is applied.

[0114] The CSI calculation time is related to multiple symbols. It is used to calculate the minimum time gap between the end position of the last symbol of the PDCCH that triggers the CSI report and the uplink symbol of the CSI report. It is also used to calculate the latest aperiodic channel state information reference signal (CSI-RS) resource for channel measurement, aperiodic CSI-interference measurement (IM) for interference measurement, and the minimum time gap between the last symbol end position of the aperiodic non-zero power (NZP) CSI-RS for interference measurement in time and the first uplink symbol of the nth CSI report.

[0115] Table 3 shows the first UE processing time for CSI calculation delay requirements 1 and 2.

[0116] Table 3:

[0117]

[0118]

[0119] In Table 3, X0, X1, X2 and / or X3 are determined according to the beamReportTiming capability reported by the UE. l It is also determined based on the beamReportTiming capability reported by the UE.

[0120] The PDCCH decoding time is related to the time taken by the UE to decode the PDCCH / DCI and is expressed in the number of symbols / time slots.

[0121] Figure 2 A schematic diagram of a wireless terminal 20 according to an embodiment of the present disclosure is provided. The wireless terminal 20 may be a user equipment (UE), a mobile phone, a laptop, a tablet computer, an e-book, or a portable computer system, and this document does not limit this. The wireless terminal 20 may include a processor 200 such as a microprocessor or an application-specific integrated circuit (ASIC), a storage unit 210, and a communication unit 220. The storage unit 210 may be any data storage device that stores program code 212 accessed and executed by the processor 200. Embodiments of the storage unit 210 include, but are not limited to, a subscriber identity module (SIM), a read-only memory (ROM), a flash memory, a random-access memory (RAM), a hard disk, and an optical data storage device. The communication unit 220 may be a transceiver and is used to send and receive signals (e.g., messages or data packets) based on the processing results of the processor 200. In one embodiment, the communication unit 220 communicates with the user via Figure 2 At least one antenna 222 is shown for transmitting and receiving signals.

[0122] In one embodiment, the storage unit 210 and the program code 212 may be omitted, and the processor 200 may include a storage unit storing the program code.

[0123] The processor 200 may implement any one of the steps of the exemplary embodiments on the wireless terminal 20 , for example, by executing the program code 212 .

[0124] The communication unit 220 may be a transceiver. Alternatively or additionally, the communication unit 220 may combine a transmitting unit and a receiving unit, which are respectively configured to transmit and receive signals to and from a wireless network node (eg, a base station).

[0125] Figure 3A schematic diagram of a radio network node 30 according to an embodiment of the present disclosure is provided. The radio network node 30 may be a satellite, a base station (BS), a network entity, a mobility management entity (MME), a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), a radio access network (RAN), a next generation RAN (NG-RAN), a data network, a core network, or a radio network controller (RNC), but this disclosure does not limit this. Furthermore, the radio network node 30 may include (or execute) at least one network function, such as an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), an application function (AF), and the like. The radio network node 30 may include a processor 300, such as a microprocessor or an ASIC, a storage unit 310, and a communication unit 320. The storage unit 310 may be any data storage device that stores program code 312 accessed and executed by the processor 300. Examples of the storage unit 310 include, but are not limited to, a SIM card, a ROM, a flash memory, a RAM, a hard disk, and an optical data storage device. The communication unit 320 may be a transceiver and is configured to send and receive signals (e.g., messages or data packets) based on the processing results of the processor 300. In one example, the communication unit 320 communicates via Figure 3 At least one antenna 322 is shown for transmitting and receiving signals.

[0126] In one embodiment, the storage unit 310 and the program code 312 may be omitted. The processor 300 may include a storage unit storing program code.

[0127] The processor 300 may implement any steps described in the exemplary embodiments on the radio network node 30 , for example, by executing the program code 312 .

[0128] The communication unit 320 may be a transceiver. Alternatively or additionally, the communication unit 320 may combine a transmitting unit and a receiving unit, which are respectively configured to transmit and receive signals to and from a wireless terminal (eg, a user equipment).

[0129] Generally, in an embodiment, a more relaxed UE processing time is provided, wherein the UE can use the relaxed UE processing time to save energy.

[0130] The following description relates to the user equipment side or the gNB side.

[0131] Specifically, a method related to applying UE processing time based on a first condition is provided.

[0132] In some embodiments, the process related to applying or using UE processing time may include at least one of determining UE processing time and performing / applying UE processing time on, for example, scheduled transmissions.

[0133] In some embodiments, the UE processing time includes a first UE processing time, a second UE processing time, and a third UE processing time.

[0134] In some embodiments, the UE may execute a slower processor that may allow for reduced clock frequency based on the second UE processing time, or reduce hardware processing for computation and power conservation.

[0135] In some embodiments, each UE processing time includes at least one of the following: physical downlink shared channel (PDSCH) processing time N1, physical uplink shared channel (PUSCH) preparation process time N2, medium access control (MAC) control element (CE) processing time, channel state information (CSI) calculation time or physical downlink control channel (PDCCH) decoding time.

[0136] Specifically, according to one embodiment, in addition to the first and third UE processing times described above, a second UE processing time is provided. The second UE processing time allows for a more relaxed time than the first UE processing time. The third UE processing time only includes N1 and N2.

[0137] In some embodiments, the second UE processing time is greater than or equal to at least one of the first UE processing time or the third UE processing time.

[0138] In some embodiments, the second UE processing time is greater than or equal to the first UE processing time and less than 10 times the first UE processing time. For example, the second UE processing time may be greater than or equal to 1.5 times the first UE processing time.

[0139] In some embodiments, the second UE processing time is greater than or equal to 2 times the third UE processing time and less than 20 times the third UE processing time. For example, the second UE processing time may be greater than or equal to 3 times the third UE processing time.

[0140] In some embodiments, performing / applying UE processing time may mean that the UE does not expect to receive a PDSCH scheduling indication that does not follow N1 in the UE processing time. In some embodiments, performing / applying UE processing time means that the UE does not expect to receive a PUSCH scheduling indication that does not follow N2 in the UE processing time. In some embodiments, performing / applying UE processing time means that the UE does not expect to process a CSI report that does not follow the CSI calculation time in the UE processing time. In some embodiments, performing / applying UE processing time means that the UE does not expect to apply the indication carried by the PDSCH until the time between the PUCCH with HARQ-ACK information and the time slot in which the command carried by the PDSCH is applied meets the MAC CE processing time in the processing time. In some embodiments, performing / applying UE processing time means that the UE does not expect to complete decoding the DCI or apply the indication carried by the DCI before the PDCCH decoding time in the UE processing time is met.

[0141] In some embodiments, if one of the UE processing times (e.g., N1, N2, MAC CE processing time, CSI calculation time, and PDCCH decoding time) is applied, one or more remaining times of the corresponding UE processing time may also be applied. For example, if N1 of the second UE processing time is applied, the PDCCH decoding time of the second UE processing time may also be applied.

[0142] Next, the definition of the second UE processing time is given.

[0143] In some embodiments, the characteristics of the second UE processing time include at least one of the following: the PDSCH processing time N1 in the second UE processing time is greater than or equal to the PDSCH processing time N1 in the first UE processing time; the PUSCH preparation process time N2 in the second UE processing time is greater than or equal to the PUSCH preparation process time N2 in the first UE processing time; the MAC CE processing time in the second UE processing time is greater than or equal to the MAC CE processing time in the first UE processing time; the CSI calculation time in the second UE processing time is greater than or equal to the CSI calculation time in the first UE processing time; or the PDCCH decoding time in the second UE processing time is greater than or equal to the PDCCH decoding time in the first UE processing time.

[0144] In some embodiments, the PDSCH processing time N1 in the second UE processing time is associated with at least one of the following: a PDSCH dedicated demodulation reference signal (DMRS), a subcarrier spacing (SCS), a PDSCH mapping type, a frequency range (FR) type, higher layer signaling, a PDSCH processing time in the first UE processing time, UE capability, a UE type (or UE category), or a scaling factor.

[0145] In the present disclosure, UE capability may be equal to UE type or UE category.

[0146] In some embodiments, the value of the PDSCH processing time in the second UE processing time is associated with at least UE capabilities.

[0147] In some embodiments, N1 in the second UE processing time has more than one value. For example, if the UE reports support for a first UE capability, a first value of N1 in the second UE processing time is applied. If the UE reports support for a second UE capability, a second value of N1 in the second UE processing time is applied.

[0148] In some embodiments, the first or second UE capabilities may include a maximum latency, a maximum data rate, a maximum modulation order, or a use case supported. The maximum latency, the maximum data rate, the maximum modulation order, or the use case are different in the first and second UE capabilities.

[0149] As another example, if the UE reports support for a first UE capability, then the first value of N1 in the second UE processing time is applied. If the UE reports support for a second UE capability, then the second value of N1 in the second UE processing time is applied. If the UE reports support for a third UE capability, then the first value of N1 in the first UE processing time is applied.

[0150] In some embodiments, the first, second, or third UE capabilities may include a maximum latency, a maximum data rate, a maximum modulation order, or a use case supported. The maximum latency, the maximum data rate, the maximum modulation order, or the use case are different among the first, second, and third UE capabilities.

[0151] In some embodiments, if the UE reports support for the first or second UE capability, then N1 in the second UE processing time will be applied. If the UE reports support for the third UE capability, then N1 in the first UE processing time will be applied.

[0152] In some embodiments, the maximum delay in the first capability is greater than the maximum delay in the second capability. In some embodiments, the maximum delay in the second capability is greater than the maximum delay in the third capability.

[0153] In some embodiments, the maximum data rate or maximum modulation order in the first capability is less than the maximum data rate or maximum modulation order in the second capability. In some embodiments, the maximum data rate or maximum modulation order in the second capability is less than the maximum data rate or maximum modulation order in the third capability.

[0154] In some embodiments, use cases in the first or second capabilities are associated with reduced capability use cases (eg, industrial wireless sensors, video surveillance, and wearable devices).

[0155] In some embodiments, the value of the PDSCH processing time in the second UE processing time is associated with at least the UE type. For example, if the UE is of the first UE type, the second UE processing time is applied, otherwise, the first or third UE processing time is applied.

[0156] In some embodiments, the first UE type is a reduced capability UE (e.g., an industrial wireless sensor, video surveillance, or a wearable device), a UE supporting reduced capabilities, an NR light UE, a UE with limited bandwidth, or a coverage enhanced UE.

[0157] In some embodiments, the PDSCH processing time N1 is associated with at least the SCS (as shown in Table 4 below).

[0158] Table 4:

[0159] μ PDSCH processing time N1 (symbol) 0 Value 1 1 Value 2 2 Value 3 3 Value 4

[0160] In Table 4, μ is a parameter set (numerology), where μ=0 means SCS=15kHz; μ=1 means SCS=30kHz; μ=2 means SCS=60kHz; μ=3 means SCS=120kHz.

[0161] In some embodiments, a larger SCS is associated with a larger N1. In other words, SCS is positively correlated with N1.

[0162] In some embodiments, each N1 candidate value is a multiple of X, where X is greater than 0. For example, X = 1.5 or 4. In one example, value 1 = 20, value 2 = 24, value 3 = 32, and value 4 = 36.

[0163] In some embodiments, N1 corresponding to the first SCS is greater than or equal to 1.1 times N1 corresponding to the second SCS and less than 10 times N1 corresponding to the second SCS, where the first SCS is greater than the second SCS. For example, N1 corresponding to the first SCS may be greater than or equal to 1.25 times N1 corresponding to the second SCS.

[0164] In some embodiments, the PDSCH processing time N1 is associated with at least one PDSCH DRMS, wherein the PDSCH DRMS ​​includes at least one of the following: a higher layer configuration and a DMRS position.

[0165] In some embodiments, for dmrs-AdditionalPosition=pos0 and dmrs-AdditionalPosition≠pos0, N1 has different values ​​(as shown in Table 5 below).

[0166] Table 5:

[0167]

[0168]

[0169] Each N1 value for dmrs-AdditionalPosition≠pos0 is greater than the N1 value for dmrs-AdditionalPosition=pos0 associated with the same parameter set (this is because dmrs-AdditionalPosition≠pos0 means that the PDSCH has more than one DMRS position in one slot and it may take the UE more time to decode the PDSCH).

[0170] In some embodiments, the N1 value (Value_type 2) for dmrs-AdditionalPosition≠pos0 is associated with the N1 value (Value_type 1) for dmrs-AdditionalPosition=pos0 associated with the same parameter set. For example, Value_type2=Value_type1+d, where d is greater than 0, such as d=3, 4, or 5.

[0171] In some embodiments, the N1 value for dmrs-AdditionalPosition = pos0 during the second UE processing time (A1) is associated with the N1 value for dmrs-AdditionalPosition ≠ pos0 during the first UE processing time (A2). In one example, A1 = A2. In another example, A1 = A2 + t, where t is greater than 0 and less than 50.

[0172] In some embodiments, for different dmrs-AdditionalPosition configurations, the N1 value may be different (as shown in Table 6 below).

[0173] Table 6:

[0174]

[0175]

[0176] In some embodiments, for the same parameter set, the N1 value of dmrs-AdditionalPosition = pos3 is not less than the N1 value of the unconfigured dmrs-AdditionalPosition, the N1 value of the unconfigured dmrs-AdditionalPosition is not less than the N1 value of dmrs-AdditionalPosition = pos1, and the N1 value of dmrs-AdditionalPosition = pos1 is not less than the N1 value of dmrs-AdditionalPosition = pos0.

[0177] In some embodiments, the N1 value for dmrs-AdditionalPosition ≠ pos0 is associated with dmrs-AdditionalPosition = pos0(value_1). For example, the N1 value for dmrs-AdditionalPosition = pos1 is equal to value_1 + d, the N1 value for dmrs-AdditionalPosition = pos3 is equal to value_1 + X2*d, and the N1 value for an unconfigured dmrs-AdditionalPosition is equal to value_1 + X1*d. X1, X2, and d are greater than 0. In some embodiments, X1 ≤ X2.

[0178] In some embodiments, the N1 value in the second UE processing time is associated with at least one of the N1 value in the first UE processing time and a scaling factor.

[0179] For example, each N1 value in the second UE processing time is equal to the N1 value in the first UE processing time with the same dmrs-AdditionalPosition and the same SCS configuration plus d1, where d1 is greater than 0.

[0180] In another example, each N1 value in the second UE processing time of dmrs-AdditionalPosition=pos0 in dmrs-DownlinkConfig in both dmrs-DownlinkForPDSCH Mapping TypeA and dmrs-DownlinkForPDCCH Mapping TypeB is equal to the N1 value in the first UE processing time with the same dmrs-AdditionalPosition and the same SCS configuration plus d2, where d2 is greater than 0. Each N1 value in the second UE processing time of dmrs-AdditionalPosition≠pos0 in DMRS-DownlinkConfig in both dmrs-DownlinkForPDSCH-mapping typeA and dmrs-DownlinkForPDSCH-mapping typeB is equal to the N1 value in the first UE processing time with the same dmrs-AdditionalPosition and the same SCS configuration plus d3, where d3 is greater than 0.

[0181] In another example, each N1 value in the second UE processing time when dmrs-AdditionalPosition=pos0 in DMRS-DownlinkConfig in both dmrs-DownlinkForPDSCH-MappingTypeA and dmrs-DownlinkForPDSCH-MappingTypeB is equal to the N1 value in the first UE processing time with the same dmrs-AdditionalPosition and the same SCS configuration multiplied by d2, where d2 is greater than 0. Each N1 value in the second UE processing time when dmrs-AdditionalPosition≠pos0 in DMRS-DownlinkConfig in both dmrs-DownlinkForPDSCH-MappingTypeA and dmrs-DownlinkForPDSCH-MappingTypeB is equal to the N1 value in the first UE processing time with the same dmrs-AdditionalPosition and the same SCS configuration multiplied by d3, where d3 is greater than 0.

[0182] In some embodiments, d2=d3.

[0183] In some embodiments, d1, d2 or d3 is associated with at least the SCS, UE capability or UE type (or UE category).

[0184] In some embodiments, the PDSCH processing time N1 in the second UE processing time is configured by higher layer signaling.

[0185] In some embodiments, N1 in the second UE processing time is different for different PDSCH mapping types. For example, N1 in the second UE processing time associated with PDSCH mapping type A is greater than N1 in the second UE processing time associated with PDSCH mapping type B.

[0186] In some embodiments, N1 in the second UE processing time is determined based at least on the FR type. For example, N1 in the second UE processing time associated with FR 2 is greater than N1 in the second UE processing time associated with FR 1.

[0187] Next, the PUSCH preparation procedure time N2 in the second UE processing time is described according to various embodiments.

[0188] In some embodiments, the PUSCH preparation process time N2 in the second UE processing time is associated with at least one of the following: SCS, the PUSCH preparation process time N2 in the first UE processing time, UE capability, UE type (or UE category), high-layer signaling, and FR type.

[0189] In some embodiments, the value of the PUSCH preparation procedure time N2 in the second UE processing time is associated with the UE capability.

[0190] In some embodiments, the second UE processing time may have more than one value. For example, if the UE reports support for a first UE capability, a first value of the second UE processing time is applied. If the UE reports support for a second UE capability, a second value of the second UE processing time is applied. The first or second UE capabilities may include a maximum supported latency, maximum data rate, maximum modulation order, or use case. The maximum latency, maximum data rate, maximum modulation order, or use case may be different in the first and second UE capabilities.

[0191] In another example, if the UE reports support for a first UE capability, a first value for the second UE processing time is applied. If the UE reports support for a second UE capability, a second value for the second UE processing time is applied. If the UE reports support for a third UE capability, the first UE processing time is applied. The first, second, or third UE capabilities may include a supported maximum latency, maximum data rate, maximum modulation order, or use case. The maximum latency, maximum data rate, maximum modulation order, or use case may be different among the first, second, and third UE capabilities.

[0192] In some embodiments, if the UE reports support for the first or second UE capability, the second UE processing time will apply. If the UE reports support for the third UE capability, the first UE processing time will apply.

[0193] In some embodiments, the maximum delay in the first capability is greater than the maximum delay in the second capability. In some embodiments, the maximum delay in the second capability is greater than the maximum delay in the third capability.

[0194] In some embodiments, the maximum data rate or maximum modulation order in the first capability is less than the maximum data rate or maximum modulation order in the second capability. In some embodiments, the maximum data rate or maximum modulation order in the second capability is less than the maximum data rate or maximum modulation order in the third capability.

[0195] In some embodiments, use cases in the first or second capabilities are associated with reduced capability use cases (eg, industrial wireless sensors, video surveillance, and wearable devices).

[0196] In some embodiments, the PUSCH preparation process time N2 in the second UE processing time is associated with at least one SCS.

[0197] In some embodiments, a larger SCS is associated with a larger N2 value. In other words, N2 is positively correlated with SCS.

[0198] In some embodiments, N2 corresponding to the first SCS is greater than or equal to 1.1 times N2 corresponding to the second SCS and less than 10 times N2 corresponding to the second SCS, where the first SCS is greater than the second SCS. For example, N2 corresponding to the first SCS may be greater than or equal to 1.25 times N2 corresponding to the second SCS.

[0199] In some embodiments, the N2 value is multiplied by a real number C. In one example, N2 = μ·C (however, the N2 value for SCS = 15 kHz does not use this formula).

[0200] In another example, N2=d μ C, as shown in Table 7, where d μ is a real number associated with the SCS, d0 <d1<d2<d3。

[0201] Table 7:

[0202] μ PUSCH preparation process time N2 0 <![CDATA[d0·C]]> 1 <![CDATA[d1·C]]> 2 <![CDATA[d2·C]]> 3 <![CDATA[d3·C]]>

[0203] In some embodiments, the PUSCH preparation procedure time N2 in the second UE processing time is at least correlated with the PUSCH preparation procedure time N2 in the first UE processing time.

[0204] In one example, the PUSCH preparation process time N2 in the second UE processing time is equal to N2 in the first UE processing time with the same parameter set multiplied by Cμ, where Cμ is a real number associated with the parameter set that is greater than 1 and less than 10. As shown in Table 8 (PUSCH preparation process time N2 in the second UE processing time).

[0205] Table 8:

[0206] μ PUSCH preparation process time N2 0 10*C0 1 12*C1 2 23*C2 3 36*C3

[0207] In some embodiments, C0=C1=C2=C3, for example, C0=C1=C2=C3=2.

[0208] In another example, the PUSCH preparation procedure time N2 in the second UE processing time is equal to N2 in the first UE processing time with the same parameter set plus Dμ, where Dμ is a real number greater than 1 and less than 10 associated with the parameter set.

[0209] In some embodiments, D1 = D2 = D3 = D4.

[0210] In some embodiments, the PUSCH preparation procedure time N2 in the second UE processing time is associated with higher layer signaling, which means that the N2 value in the second UE processing time is configured by higher layer signaling.

[0211] In some embodiments, the PUSCH preparation procedure time N2 in the second UE processing time is associated with the FR type. For example, N2 in the second UE processing time associated with FR 2 is greater than N2 in the second UE processing time associated with FR 1.

[0212] Next, the MAC CE processing time in the second UE processing time is described according to various embodiments.

[0213] In some embodiments, the MAC CE processing time in the second UE processing time is associated with at least one of the following: the number of slots per subframe of the subcarrier spacing configuration; The MAC CE processing time, higher layer signaling, predefined value or UE capability in the first UE processing time.

[0214] In some embodiments, the MAC CE processing time in the second UE processing time (eg, T MAC ) at least with Associated with predefined values. For example, Wherein M is a predefined value and is an integer greater than 3 and less than 10.

[0215] In some embodiments, the MAC CE processing time (T MAC) is at least equal to the MAC CE processing time (T MAC_1 ). In one example, T MAC =T MAC_1 +M1, where M1 is an integer greater than 0 and less than 10. In another example, T MAC =T MAC_1 M2, where M2 is a real number greater than 1 and less than 10.

[0216] In some embodiments, the MAC CE processing time (T MAC ) is configured by higher-layer signaling.

[0217] MAC CE processing time in the first UE processing time (T MAC_1 ) can be:

[0218] Next, the CSI calculation time in the second UE processing time is described according to various embodiments.

[0219] In some embodiments, the CSI calculation time in the second UE processing time is associated with at least one of the following: reporting amount, UE capability, higher layer signaling, reporting index, SCS, frequency granularity, or the number of simultaneous CSI calculations supported N CPU .

[0220] In some embodiments, the CSI calculation time (N CSI ) is at least associated with UE capabilities. In one example, some or all of N CSI is a value reported by the UE capability. In some embodiments, the UE capability is beamReportTiming in the second UE processing time.

[0221] In some embodiments, the CSI calculation time (N CSI ) is associated with at least a reporting quantity. The reporting quantity is a CSI-related quantity to be reported by the UE, such as Layer Indicator (LI), L1 Reference Signal Received Power (RSRP), L1 Signal to Interference plus Noise Ratio (SINR), CSI-RS Resource Indicator (CRI), and Synchronization Signal Block Resource Indicator (SSBRI).

[0222] In some embodiments, for different reporting amounts, the second UE processes some or all of N CSI In one example, the second UE processes some or all of N used to report L1-RSRP and L1-SINR in time. CSI In another example, the second UE processes some or all of the N used to report CRI and SSBRI. CSI are the same.

[0223] In some embodiments, the CSI calculation time (N CSI ) is at least associated with higher-layer signaling. In one example, different values ​​configured by higher-layer signaling are associated with different CSI calculation times. In another example, if higher-layer signaling is configured, the CSI calculation time is a first value; otherwise, the CSI calculation time is a second value. In another example, the CSI calculation time is configured by higher-layer signaling.

[0224] In some embodiments, the CSI calculation time (N CSI ) is associated with at least the index of the report. If DCI triggers CSI reporting in PUSCH, one or more CSI reports will be sent. Since the UE should decode the DCI and prepare the CSI report before sending the first CSI report, the N of the first (or index 1) CSI report is CSI Greater than other N CSI .

[0225] For example, for CSI reports triggered by the same DCI, the N CSI N reported by another CSI CSI In some embodiments, C1 is a real number greater than 0. For example, C1 is the PDCCH decoding time in the second UE processing time.

[0226] In some embodiments, the CSI calculation time (N CSI ) is at least associated with the frequency granularity. In one example, the CSI calculation time (N) for the wideband frequency granularity in the second UE processing time CSI ) is less than or equal to the CSI calculation time for subband frequency granularity in the second UE processing time (N CSI ).

[0227] In some embodiments, the CSI calculation time (N CSI ) is associated with the SCS. In one example, N CSI =d μC2, where C2 is a real number greater than 0 and less than 100, d μ is an integer greater than 0 associated with the SCS.

[0228] In some embodiments, the CSI calculation time (N CSI ) at least as many as the number of supported simultaneous CSI calculations N CPU In one example, N CPU The larger one does not match N CSI In another example, if N CPU is less than the threshold, then N CSI The value is 1, otherwise, N CSI The value is 2.

[0229] Next, the PDCCH decoding time in the second UE processing time is described according to various embodiments.

[0230] The PDCCH decoding time in the second UE processing time is associated with at least one of the following: SCS, control resource set (CORESET), search space set, DCI format, radio network temporary identifier (RNTI), UE capability, predefined value, high-layer signaling or UE type.

[0231] In some embodiments, the PDCCH decoding time (N PDCCH ) is associated with an SCS. In one example, a larger SCS will not be associated with a smaller PDCCH decoding time. In another example, N PDCCH =y μ C3, where C3 is a positive real number less than 20, y μ is a positive real number associated with SCS and less than 10 (see Table 9 below).

[0232] Table 9:

[0233] μ PDCCH decoding time 0 <![CDATA[y0·C3]]> 1 <![CDATA[y1·C3]]> 2 <![CDATA[y2·C3]]> 3 <![CDATA[y3·C3]]>

[0234] In some embodiments, the PDCCH decoding time in the second UE processing time is at least associated with the UE capability. For example, the UE may report the PDCCH decoding time UE capability and determine the PDCCH decoding time based on the reported UE capability value.

[0235] In some embodiments, the PDCCH decoding time in the second UE processing time is associated with a predefined value. In some embodiments, the predefined value is different for different SCSs.

[0236] In some embodiments, the PDCCH decoding time in the second UE processing time is associated with higher layer signaling. For example, the PDCCH decoding time in the second UE processing time is configured by higher layer signaling.

[0237] Next, according to various embodiments, a first condition is defined.

[0238] The first condition includes at least one of the following: high-layer signaling, UE capability, UE type, DCI, RNTI, bandwidth part (Bandwidth Part, BWP), TBS, modulation order, CORESET, search space set, UE category or random access preamble (at least one of sequence or resource or format).

[0239] In some embodiments, the first condition includes UE capabilities.

[0240] UE capabilities include at least one of the following:

[0241] 1.PDSCH-processingType capability

[0242] In some embodiments, if the UE reports a UE capability indicating that the UE supports the PDSCH processing time in the second UE processing time, the PDSCH processing time in the second UE processing time will be used.

[0243] In the present disclosure, "will use" may be equal to "use".

[0244] In some embodiments, if the UE does not report a UE capability indicating that the UE supports the PDSCH processing time in the second UE processing time, the PDSCH processing time in the first or third UE processing time will be used.

[0245] In some embodiments, the UE capability indicating that the UE supports the PDSCH processing time in the second UE processing time includes a parameter indicating whether the UE supports 1, 2, 4 and / or 7 unicast PDSH second UE processing times for different transport blocks per time slot per component carrier (CC).

[0246] In some embodiments, if this capability is indicated, the UE may include at least one of a numberOfCarriers value of 1, 2, 4, or 7 transport blocks per slot.

[0247] 2. Pusch-processing Type capability

[0248] In some embodiments, if the UE reports a UE capability indicating that the UE supports the PUSCH preparation time in the second UE processing time, the PUSCH preparation time in the second UE processing time will be used.

[0249] In some embodiments, if the UE does not report a UE capability indicating that the UE supports the PUSCH preparation time in the second UE processing time, the PUSCH preparation time in the first or third UE processing time will be used.

[0250] In some embodiments, the UE capability indicating support for the PUSCH preparation time in the second UE processing time includes a parameter indicating whether the UE supports 1, 2, 4, and / or 7 unicast PUSCHs for different transport blocks per CC per timeslot. In some embodiments, if this capability is indicated, the UE may include at least one of a numberOfCarriers value of 1, 2, 4, or 7 transport blocks per timeslot.

[0251] 3.PDCCH decoding capability

[0252] In some embodiments, if the UE reports a UE capability indicating that the UE supports the PDCCH decoding time in the second UE processing time, the second UE processing time will be used.

[0253] In some embodiments, if the UE does not report a UE capability indicating that the UE supports the PDCCH decoding time in the second UE processing time, the first or third UE processing time will be used.

[0254] In some embodiments, the UE capability indicating that the UE supports the PDCCH decoding time in the second UE processing time is associated with the capability indicating that the UE supports the PUSCH preparation time in the second UE processing time.

[0255] 4. Second UE processing time capability

[0256] In some embodiments, if the UE reports UE capabilities indicating that the UE supports the second UE processing time, the second UE processing time will be used.

[0257] In some embodiments, if the UE does not report UE capabilities indicating that the UE supports the second UE processing time, the first or third UE processing time will be used.

[0258] 5. Maximum bandwidth

[0259] In some embodiments, if the maximum downlink (DL) channel bandwidth supported by the UE for a given SCS is reported to be greater than a first threshold, the first or third UE processing time will be used.

[0260] In some embodiments, if the maximum DL channel bandwidth reported by the UE to be supported for a given SCS is not greater than the first threshold, a second UE processing time will be used.

[0261] In some embodiments, the first threshold may be a positive number not greater than 100, expressed in MHz. The first threshold may be associated with the SCS or FR type. For example, for an SCS of 15 kHz or 30 kHz, the first threshold is 20 MHz; for an SCS of 60 kHz or 120 kHz, the first threshold is 50 MHz. In another example, for FR 1, the first threshold is 20 MHz; for FR 2, the first threshold is 50 MHz.

[0262] 6. Number of PDCCH candidates

[0263] In some embodiments, if the UE does not report the maximum number of monitored PDCCH candidates per time slot of the UE in the DL bandwidth part (Bandwidth Part, BWP), or the maximum number of monitored PDCCH candidates per time slot of the UE in the reported DL BWP is greater than the second threshold, the first or third UE processing time will be used.

[0264] In some embodiments, if the maximum number of monitored PDCCH candidates per slot for the UE in the UE-reported DL BWP is not greater than a second threshold, the second UE processing time will be used.

[0265] In some embodiments, the second threshold can be a positive number and no greater than 100. The second threshold can be associated with either the SCS or the FR type. In some embodiments, a larger SCS is associated with the same or a smaller second threshold. For example, the second threshold for a BWP with an SCS of 15 kHz is greater than or equal to the second threshold for a BWP with an SCS of 30 kHz. In some embodiments, the second threshold for FR2 is less than the second threshold for FR1. For example, the second threshold for FR2 is 10, and the second threshold for FR1 is 20.

[0266] In some embodiments, if the number of PDCCH candidates is greater than a second threshold, the first or third UE processing time will be applied.

[0267] In some embodiments, if the number of PDCCH candidates is not greater than a second threshold, a second UE processing time will be applied.

[0268] 7. Number of CCEs

[0269] In some embodiments, if the UE does not report the maximum number of non-overlapping Control Channel Elements (CCEs) per time slot for DL ​​BWP or the maximum number of non-overlapping CCEs per time slot for DL ​​BWP is greater than a third threshold, the first or third UE processing time will be used.

[0270] In some embodiments, if the maximum number of non-overlapping CCEs per time slot for which the UE reports a DL BWP is not greater than a third threshold, the second UE processing time will be used.

[0271] In some embodiments, if the number of non-overlapping CCEs per slot of the DL BWP is greater than a third threshold, then the first or third UE processing time will be used.

[0272] In some embodiments, if the number of non-overlapping CCEs per slot of the DL BWP is not greater than a third threshold, the second UE processing time will be used.

[0273] In some embodiments, the third threshold can be a positive number and less than 100. The third threshold can be associated with the SCS or FR type. In some embodiments, the third threshold is associated with the SCS. For example, a larger SCS will be associated with the same or a smaller second threshold. For example, the third threshold for a BWP with an SCS of 15 kHz is greater than or equal to the third threshold for a BWP with an SCS of 30 kHz. In some embodiments, the third threshold for FR2 is less than the third threshold for FR1. For example, the third threshold for FR2 is 20, and the third threshold for FR1 is 30.

[0274] 8.DCI format size

[0275] In some embodiments, if the total number of different DCI sizes reported by the UE as configured to monitor the cell is less than a fourth threshold, the second UE processing time will be applied (or used). Otherwise, the first or third UE processing time will be used.

[0276] In some embodiments, if the total number of different DCI sizes configured to be monitored for the cell is less than a fourth threshold, the second UE processing time will be applied (or used). Otherwise, the first or third UE processing time will be used.

[0277] In some embodiments, the fourth threshold may be a positive number and may be less than 5. For example, the fourth threshold may be 4. In some embodiments, the fourth threshold may be associated with an SCS, an FR type, an RNTI, or a link direction.

[0278] 9. Maximum modulation order

[0279] In some embodiments, if the UE does not report a maximum modulation order or reports a maximum modulation order greater than a fifth threshold, the first or third UE processing time will be used.

[0280] In some embodiments, if the UE reports that the maximum modulation order is not greater than a fifth threshold, the second UE processing time will be used.

[0281] In some embodiments, if the maximum modulation order is greater than a fifth threshold, the first or third UE processing time will be used for at least a transport block (TB).

[0282] In some embodiments, if the maximum modulation order is not greater than a fifth threshold, the second UE processing time will be used for at least the transport block.

[0283] In some embodiments, the fifth threshold may be a positive number and may be less than 8, for example, the fifth threshold may be 6. In some embodiments, the fifth threshold may be associated with an SCS, an FR type, an RNTI, a DCI format, or a link direction.

[0284] In some embodiments, the maximum modulation order is a maximum modulation order for PDSCH reception or a maximum modulation order for PUSCH transmission.

[0285] 10. Number of CORESETs

[0286] In some embodiments, if the maximum number of CORESETs of the BWP is not greater than a sixth threshold, the second UE processing time will be used.

[0287] In some embodiments, if the maximum number of CORESETs of the BWP is greater than a sixth threshold, the first or third UE processing time will be used.

[0288] In some embodiments, the sixth threshold may be a positive number and may be less than 4. For example, the sixth threshold may be 2. In some embodiments, the sixth threshold may be associated with the SCS or the bandwidth.

[0289] 11. Number of search space sets

[0290] In some embodiments, if the maximum number of search space sets for the BWP is not greater than a seventh threshold, the second UE processing time will be used.

[0291] In some embodiments, if the maximum number of search space sets for the BWP is greater than a seventh threshold, the first or third UE processing time will be used.

[0292] In some embodiments, the seventh threshold may be a positive number and may be less than 10. For example, the seventh threshold may be 6. In some embodiments, the seventh threshold is associated with the SCS or the bandwidth.

[0293] 12. Reduced Capacity

[0294] In some embodiments, if the UE reports support for reduced capabilities, a second UE processing time will be used.

[0295] In some embodiments, if the UE does not report support for reduced capabilities or reports no support for reduced capabilities, then the first or third UE processing time will be used.

[0296] In some embodiments, a UE reporting support for reduced capability means that the UE is a reduced capability UE.

[0297] In some embodiments, the first condition includes higher layer signaling.

[0298] In some embodiments, the higher layer signaling (or parameter) is a second UE processing time enabling signaling.

[0299] In some embodiments, if the higher layer signaling is configured and / or set to enabled, the second UE processing time is used. Otherwise, if the second higher layer signaling processingType2Enabled is configured and set to enabled, the third UE processing time is used, and if the second higher layer signaling is not configured or not set to enabled, the first UE processing time is used.

[0300] In some embodiments, higher layer signaling is configured and used to enable a specific second UE processing time. For example, the specific second UE processing time is a PUSCH preparation process time in the second UE processing time. If higher layer signaling is configured, the PUSCH preparation process time in the second UE processing time is used.

[0301] In some embodiments, if higher layer signaling is configured and set to the first state, the second UE processing time will be used. If higher layer signaling is configured and set to the second state, the third UE processing time will be used. If higher layer signaling is not configured or set to the third state, the first UE processing time will be used.

[0302] In some embodiments, higher layer signaling is used to indicate activation of at least one second UE processing time. The type of the activated second UE processing time is indicated in the higher layer signaling.

[0303] For example, the first higher layer signaling includes several second higher layer parameters, each of which indicates whether a certain time in the second UE processing time is enabled.

[0304] For example, according to one embodiment:

[0305] First high-level signaling {

[0306] The second UE processes N1 in the time enable signal: enable

[0307] The second UE processes N2 in the enable signal: enable

[0308] Second UE processing time enables PDCCH decoding time in signal: disabled ...

[0310] }

[0311] In some embodiments, the first condition includes UE capabilities and higher layer signaling.

[0312] In some embodiments, if the UE reports support for a second UE processing time and the first higher layer signaling indicates that the second UE processing time is “enabled,” the second UE processing time is used. Otherwise, if the UE reports support for a third UE processing time and the second higher layer signaling indicates that the third UE processing time is “enabled,” the third UE processing time is used. If the UE does not report support for the third UE processing time and the second higher layer signaling does not indicate that the third UE processing time is “enabled,” the first UE processing time is used.

[0313] In some embodiments, if the UE reports supporting the second UE processing time and the first higher layer signaling indicates that the second UE processing time is “enabled”, the second UE processing time is used. Otherwise, the first or third UE processing time is used.

[0314] In some embodiments, the first condition includes a random access preamble (at least one of a sequence, a resource, or a format).

[0315] In some embodiments, if a predefined sequence / resource / format is used for random access, the first or third UE processing time is used, where the predefined sequence / resource / format is used for random access preamble, random access response (Random Access Response, RAR), PUSCH scheduled by RAR, or PDSCH for contention resolution.

[0316] In some embodiments, if the predefined sequence / resource / format is not used for random access, the characteristics of the PDCCH candidate meet the second or third PDCCH monitoring requirements.

[0317] In some embodiments, if the UE supports transmission of a specific random access preamble (Msg 1) or transmission of a specific PUSCH (Msg 3) scheduled by an RAR uplink (UL) grant, the second UE processing time will be used.

[0318] In some embodiments, the specific random access preamble is a random access preamble associated with reduced capability information. In some embodiments, the specific PUSCH is a PUSCH carrying reduced capability information.

[0319] In some embodiments, if the UE receives a PDCCH / PDSCH for a specific RAR message (Msg2) or with a specific PDSCH for contention resolution (Msg4), the second UE processing time will be used.

[0320] In some embodiments, the specific Msg2 is Msg2 associated with reduced capability information. The specific Msg4 is Msg4 associated with reduced capability information.

[0321] In some embodiments, if the UE supports transmission of a specific random access preamble and PUSCH (MsgA) in PRACH, or receives a specific RAR message with PDCCH / PDSCH (MsgB), the second UE processing time shall be used, where the transmission of PUSCH scheduled by the RAR UL grant and PDSCH for contention resolution is included when MsgB is applicable.

[0322] In some embodiments, the specific MsgA is MsgA associated with reduced capability information. The specific MsgB is MsgB associated with reduced capability information.

[0323] In some embodiments, if the UE supports a specific L1 random access procedure associated with the reduced capability information, the second UE processing time will be used. Otherwise, the first or third UE processing time will be used.

[0324] In some embodiments, the first condition includes a DCI.

[0325] In some embodiments, the first condition includes a DCI and a modulation order. In some embodiments, if the UE receives a DCI scheduling a PDSCH and indicating a modulation order greater than an eighth threshold, then at least N1 of the first or third UE processing times will be used for at least the PDSCH. If the UE receives a DCI scheduling a PDSCH and indicating a modulation order not greater than the eighth threshold, then at least N1 of the second UE processing time will be used for at least the PDSCH. The eighth threshold may be a positive number less than 8. For example, the eighth threshold may be 5.

[0326] In some embodiments, the UE may determine the modulation order based on the 5-bit modulation and coding scheme field in the DCI.

[0327] In some embodiments, if a UE receives DCI scheduling a PUSCH and indicating a modulation order greater than a tenth threshold, at least N2 of the first or third UE processing time will be used for at least PUSCH. If a UE receives DCI scheduling a PUSCH and indicating a modulation order not greater than a tenth threshold, at least N2 of the second UE processing time will be used for PUSCH. The tenth threshold may be a positive number and may be less than 6. For example, the tenth threshold may be 4.

[0328] In some embodiments, if the total number of different DCI sizes configured for the monitored cell is greater than a twelfth threshold, the first or third UE processing time will be used for the cell.

[0329] In some embodiments, if the total number of different DCI sizes configured for the monitored cell is not greater than a twelfth threshold, the second UE processing time will be used for the cell.

[0330] In some embodiments, if the UE monitors a specific DCI format, the second UE processing time will be used.The specific DCI format is a DCI format associated with reduced capability.

[0331] In some embodiments, the first condition includes TBS.

[0332] In some embodiments, if the UE receives DCI scheduling a PDSCH or receives a PDSCH without DCI, and the transport block size (TBS) is greater than a ninth threshold, then at least N1 of the first UE processing time is used for at least the PDSCH. In some embodiments, if the UE receives DCI scheduling a PDSCH and the TBS is not greater than the ninth threshold, then at least N1 of the second UE processing time is used for at least the PDSCH. The ninth threshold may be a positive number and may be less than 10,000. For example, the ninth threshold may be 1024.

[0333] In some embodiments, if the UE is preparing to transmit a PUSCH scheduled by a grant type 2 indicated by a DCI or configured by DCI activation, or a PUSCH scheduled by a configured grant type 1, and the TBS is greater than an eleventh threshold, at least N2 of the first or third UE processing time is used for PUSCH. In some embodiments, if the UE is preparing to transmit a PUSCH scheduled by a grant type 2 indicated by a DCI or configured by DCI activation, or a PUSCH scheduled by a configured grant type 1, and the TBS is not greater than an eleventh threshold, at least N2 of the second UE processing time is used for PUSCH. The eleventh threshold may be a positive number and may be less than 10,000. For example, the eleventh threshold may be 1024.

[0334] In some embodiments, if the UE is preparing to transmit a PUSCH indicated by a DCI, or scheduled by a grant type 2 PUSCH configured by a DCI activation, or scheduled by a configured grant type 1 PUSCH, then at least N2 of the second UE processing time is used.

[0335] In some embodiments, the first condition includes a CORESET.

[0336] In some embodiments, if the number of CORESETs configured in the BWP is greater than a sixth threshold, the first or third UE processing time will be used for the BWP.

[0337] In some embodiments, if the number of CORESETs configured in the BWP is not greater than a sixth threshold, the second UE processing time will be used for the BWP.

[0338] In some embodiments, the sixth threshold may be a positive number and may be less than 4. For example, the sixth threshold may be 2. In some embodiments, the sixth threshold may be associated with the SCS or the bandwidth.

[0339] In some embodiments, if the DCI scheduling PDSCH or PUSCH is associated with a specific CORESET, at least N1 or N2 in the second UE processing time is used for PDSCH or PUSCH. In some embodiments, the specific CORESET may be a CORESET associated with reduced capability information.

[0340] In some embodiments, the first condition comprises a search space set.

[0341] In some embodiments, if the number of search space sets configured for the BWP is not greater than a seventh threshold, the second UE processing time will be used.

[0342] In some embodiments, if the number of search space sets configured for the BWP is greater than a seventh threshold, the first or third UE processing time will be used.

[0343] The seventh threshold may be a positive number and less than 10. For example, the seventh threshold may be 6. In some embodiments, the seventh threshold may be associated with the SCS or the bandwidth.

[0344] In some embodiments, if the DCI scheduling PDSCH or PUSCH is associated with a specific search space set, at least N1 or N2 in the second UE processing time is used for PDSCH or PUSCH. In some embodiments, the specific search space set may be a search space set associated with reduced capability information.

[0345] In some embodiments, the first condition includes a BWP.

[0346] In some embodiments, if the bandwidth is greater than a first threshold, the first or third UE processing time will be used in the BWP.

[0347] In some embodiments, if the bandwidth is not greater than the first threshold, the second UE processing time will be used in the BWP.

[0348] The first threshold value may be a positive number and may not be greater than 100, expressed in MHz. The first threshold value may be associated with the SCS or FR type. For example, for SCS of 15 kHz or 30 kHz, the first threshold value is 20 MHz, and for SCS of 60 kHz or 120 kHz, the first threshold value is 50 MHz. In another example, for FR 1, the first threshold value is 20 MHz, and for FR 2, the first threshold value is 50 MHz.

[0349] In some embodiments, if the activated BWP is a specific BWP, the second UE processing time will be used in the BWP. The specific BWP is the BWP associated with the reduced capability information.

[0350] Next, some combination examples are described according to various embodiments.

[0351] In some embodiments, the first condition includes (e.g., is associated with) UE capabilities and the number of CORESETs. For example, if the UE reports UE capabilities supporting the second UE processing time and the number of CORESETs configured for the BWP or serving cell is not greater than a sixth threshold, the second UE processing time will be used in the BWP or serving cell. Otherwise, the first or third UE processing time will be used in the BWP or serving cell.

[0352] In some embodiments, the first condition includes UE capabilities and the number of search space sets. For example, if the UE reports UE capabilities supporting the second UE processing time and the number of search space sets configured for the BWP or serving cell is not greater than a seventh threshold, the second UE processing time will be used in the BWP or serving cell. Otherwise, the first or third UE processing time will be used in the BWP or serving cell.

[0353] In some embodiments, the first condition includes UE capabilities and the number of DCI sizes. For example, if the UE reports UE capabilities supporting the second UE processing time, and the total number of different DCI sizes monitored for the cell configuration is not greater than a twelfth threshold, the second UE processing time will be used for the cell. Otherwise, the first or third UE processing time will be used for the cell.

[0354] In some embodiments, the first condition includes UE capabilities and bandwidth. For example, if the UE reports UE capabilities that support the second UE processing time and the bandwidth is not greater than the first threshold, the second UE processing time will be used in the BWP. Otherwise, the first or third UE processing time will be used in the BWP.

[0355] In some embodiments, the first condition includes UE capability and TBS. For example, if the UE reports UE capability supporting the second UE processing time, and receives a DCI scheduling PDSCH or a to-be-received PDSCH without DCI and the transport block size (Transport Block Size, TBS) is not greater than a ninth threshold, then at least N1 of the second UE processing time is used for PDSCH. In another example, if the UE reports UE capability supporting the second UE processing time, and the UE is ready to send a PUSCH scheduled by a grant type 2 PUSCH indicated by the DCI, or configured by DCI activation, or a PUSCH scheduled by a configured grant type 1 PUSCH, and the TBS is not greater than an eleventh threshold, then at least N2 of the second UE processing time is used for PUSCH.

[0356] In some embodiments, the first condition includes UE capability and modulation order. For example, if the UE reports UE capability supporting the second UE processing time, and the UE receives DCI scheduling PDSCH and indicating a modulation order not greater than an eighth threshold, then at least N1 of the second UE processing time will be used for PDSCH. In another example, if the UE reports UE capability supporting the second UE processing time, and the UE receives DCI scheduling PUSCH and indicating a modulation order not greater than a tenth threshold, then at least N2 of the second UE processing time will be used for PUSCH.

[0357] In some embodiments, the first condition includes UE capabilities, higher layer signaling, and bandwidth. For example, if the UE reports UE capabilities supporting the second UE processing time, higher layer signaling is configured to enable the second UE processing time, and the bandwidth is not greater than a first threshold, the second UE processing time will be used in the BWP. Otherwise, the first or third UE processing time will be used in the BWP.

[0358] In some embodiments, the first condition includes UE capabilities, higher layer signaling, and the number of CORESETs. For example, if the UE reports UE capabilities supporting the second UE processing time, higher layer signaling is configured to enable the second UE processing time, and the number of CORESETs configured for the BWP or serving cell is not greater than a sixth threshold, the second UE processing time will be used in the BWP or serving cell. Otherwise, the first or third UE processing time will be used in the BWP or serving cell.

[0359] In some embodiments, the first condition includes UE capabilities and higher-layer signaling and the number of search space sets. For example, if the UE reports UE capabilities supporting the second UE processing time, and the higher-layer signaling is configured to enable the second UE processing time, and the number of search space sets configured for the BWP or serving cell is not greater than a seventh threshold, then the second UE processing time will be used in the BWP or serving cell. Otherwise, the first or third UE processing time will be used in the BWP or serving cell.

[0360] In some embodiments, the first condition includes UE capabilities and higher layer signaling and the number of DCI sizes. For example, if the UE reports UE capabilities supporting the second UE processing time, and the higher layer signaling is configured to enable the second UE processing time, and the total number of different DCI sizes configured for monitoring for the cell is not greater than a twelfth threshold, then the second UE processing time will be used for the cell. Otherwise, the first or third UE processing time will be used for the cell.

[0361] In some embodiments, the first condition includes higher layer signaling and a DCI format. For example, if the higher layer signaling is configured to enable the second UE processing time, and the UE monitors a specific DCI format, the second UE processing time will be used.

[0362] In some embodiments, the first condition includes higher layer signaling and a CORESET. For example, if higher layer signaling is configured to enable the second UE processing time, and the DCI scheduling the PDSCH or PUSCH is associated with a specific CORESET, then at least N1 or N2 in the second UE processing time is used for the PDSCH or PUSCH. In some embodiments, the specific CORESET may be a CORESET associated with reduced capability information.

[0363] In some embodiments, the first condition includes higher layer signaling and a search space set. For example, if higher layer signaling is configured to enable the second UE processing time, and the DCI scheduling the PDSCH or PUSCH is associated with a specific search space set, then at least N1 or N2 in the second UE processing time is used for the PDSCH or PUSCH. In some embodiments, the specific search space set may be a search space set associated with reduced capability information.

[0364] In some embodiments, the first condition includes higher layer signaling and a BWP. For example, if the higher layer signaling is configured to enable the second UE processing time, and the activated BWP is a specific BWP, the second UE processing time will be used in the BWP. The specific BWP may be the BWP associated with the reduced capability information.

[0365] In some embodiments, the first condition includes UE type and higher layer signaling. If the UE is a reduced capability UE and the higher layer signaling is configured to enable the second UE processing time, the second UE processing time will be used. Otherwise, the first or third UE processing time will be used.

[0366] In some embodiments, the first condition includes UE type and UE capability. If the UE is a reduced capability UE and reports the capability of supporting the second UE processing time, the second UE processing time will be used. Otherwise, the first or third UE processing time will be used.

[0367] Next, UE categories are described according to various embodiments.

[0368] For the first UE category, the second UE processing time will be applied (or used).

[0369] For the second UE category, the first or third UE processing time will be applied (or used).

[0370] In some embodiments, the UE category is determined by predefined UE capabilities. In some embodiments, the predefined UE capabilities include at least one of the following:

[0371] -Supported bandwidth

[0372] - Number of receiving or transmitting antennas

[0373] - Maximum MIMO layers or maximum rank or number of ports

[0374] -Maximum number of HARQ processes

[0375] - Maximum modulation order. In some embodiments, the maximum modulation order may be the modulation order of UL or DL.

[0376] -Maximum bitrate

[0377] - Maximum number of CORESETs per DL BWP or serving cell

[0378] - Maximum number of search space sets per DL BWP or serving cell

[0379] - Maximum number of PDCCH candidates monitored within a span

[0380] - Maximum number of non-overlapping CCEs within a span

[0381] - Maximum number of DCI sizes

[0382] - Maximum number of PDCCH candidates to be monitored within a resource unit

[0383] - Maximum number of non-overlapping CCEs within a resource unit

[0384] - The maximum number of bits received in a period. In some embodiments, the period can be one of a Transmission Time Interval (TTI), a timeslot, a millisecond, or a second. In some embodiments, the bits are DL-SCH transport block bits.

[0385] -The maximum number of bits of a transport block received in one period. In some embodiments, the period can be one of a TTI, a timeslot, a millisecond, or a second. In some embodiments, the transport block is a DL-SCH transport block.

[0386] -The maximum number of transport blocks received in a period. In some embodiments, the period can be one of a TTI, a timeslot, a millisecond, or a second. In some embodiments, the transport block is a DL-SCH transport block.

[0387] -The maximum number of bits sent in a period. In some embodiments, the period can be one of TTI, time slot, millisecond, or second. In some embodiments, these bits are UL-SCH transport block bits.

[0388] -The maximum number of bits of a transport block sent in one period. In some embodiments, the period can be one of TTI, time slot, millisecond, or second. In some embodiments, the transport block is a UL-SCH transport block.

[0389] - The maximum number of transport blocks sent in a period. In some embodiments, the period can be one of a TTI, a timeslot, a millisecond, or a second. In some embodiments, the transport block is a UL-SCH transport block.

[0390] - Maximum data rate. In some embodiments, the maximum data rate is one of a maximum data rate for PUSCH transmission in a serving cell or a serving cell group or a maximum data rate for PDSCH reception in a serving cell or a serving cell group.

[0391] - Total number of soft channel bits. In some embodiments, the total number of soft channel bits is the total number of soft channel bits available for the HARQ process.

[0392] - Buffer size. In some embodiments, the buffer size is the total size of the Layer 2 buffer. In some embodiments, the total size of the Layer 2 buffer is defined as the sum of the number of bytes that the UE can store in the RLC transmit window, the RLC receive and reordering window, and the PDCP reordering window for all radio bearers.

[0393] -TDD / FDD operation. In some embodiments, the TDD / FDD operation includes TDD operation, FDD operation, or half-duplex FDD operation. In some embodiments, the half-duplex FDD operation includes at least one of Type A half-duplex FDD operation or Type B half-duplex FDD operation.

[0394] - Maximum number of retransmissions of a physical channel / signal

[0395] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth and number of receive antennas.

[0396] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth and number of transmit antennas.

[0397] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, number of transmit antennas, and number of receive antennas.

[0398] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth and number of HARQ processes.

[0399] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, number of transmit antennas, and maximum number of HARQ processes.

[0400] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, number of receive antennas, and maximum number of PDCCH candidates monitored within a span.

[0401] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, maximum MIMO layers, and maximum modulation order.

[0402] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, maximum MIMO layers, maximum modulation order, and maximum code rate.

[0403] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, maximum MIMO layers, maximum modulation order, maximum code rate, and maximum data rate.

[0404] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, maximum data rate, and buffer size.

[0405] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, number of receive antennas, maximum modulation order, and supported half-duplex FDD operation type.

[0406] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, number of receive antennas, and maximum modulation order.

[0407] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, maximum data rate, and supported half-duplex FDD operation type.

[0408] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, maximum data rate, and maximum modulation order.

[0409] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, maximum data rate, maximum modulation order, and maximum number of MIMO layers.

[0410] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, maximum data rate, maximum modulation order, maximum number of MIMO layers, and supported half-duplex FDD operation type.

[0411] In some embodiments, the UE category is determined by UE capabilities including at least supported bandwidth, maximum number of MIMO layers, and supported half-duplex FDD operation type.

[0412] In some embodiments, the UE category is determined by UE capabilities including at least a maximum number of bits received in a period, a maximum number of bits of a transport block received in a period, a maximum modulation order, and a total number of soft channel bits.

[0413] In some embodiments, the UE category is determined by UE capabilities including at least a maximum number of bits transmitted in one period, a maximum number of bits of a transport block transmitted in one period, and a maximum modulation order.

[0414] In some embodiments, the first UE category is a UE with reduced / lower capability, or a NR light UE, or a UE with limited bandwidth, or a coverage enhanced UE.

[0415] In some embodiments, the first UE category includes at least one of the following capabilities:

[0416] -The maximum bandwidth is not greater than the first threshold

[0417] -The number of receiving antennas is not greater than the second threshold

[0418] -The number of transmitting antennas is not greater than the third threshold

[0419] -The maximum number of MIMO layers is not greater than the fourth threshold

[0420] -The maximum number of ports is not greater than the fifth threshold

[0421] -The maximum number of ranks is not greater than the sixth threshold

[0422] -Support HD-FDD

[0423] -The maximum number of monitored PDCCH candidates in a resource unit is not greater than the twentieth threshold

[0424] -The maximum number of non-overlapping CCEs in a resource unit is not greater than the 21st threshold

[0425] -The maximum modulation order is not greater than the seventh threshold

[0426] -The maximum number of DCI sizes is not greater than the eighth threshold

[0427] -The maximum number of search space sets per DL BWP or serving cell is not greater than the ninth threshold

[0428] -The maximum number of CORESETs per DL BWP or serving cell is not greater than the tenth threshold

[0429] -The maximum data rate is not greater than the eleventh threshold

[0430] -The maximum number of HARQ processes is not greater than the twelfth threshold

[0431] -The maximum bit rate is not greater than the thirteenth threshold

[0432] -The maximum number of bits received in one cycle is not greater than the fourteenth threshold

[0433] -The maximum number of bits of a transport block received in one period is not greater than the fifteenth threshold

[0434] -The maximum number of bits sent in one cycle is not greater than the sixteenth threshold

[0435] -The maximum number of bits of a transport block sent in one cycle is not greater than the eighteenth threshold

[0436] -The maximum number of bits of the buffer size is not greater than the nineteenth threshold.

[0437] The above threshold may be a positive integer.

[0438] In some embodiments, the first UE category includes at least one of the following capabilities:

[0439] -Supported bandwidth is 20MHz

[0440] - One or two receive antennas. In some embodiments, the number of receive antennas is determined by the frequency range or subcarrier spacing. For example, for frequency range 1, the number of receive antennas is 1. For example, for frequency range 1, the number of receive antennas is 2.

[0441] -The maximum number of MIMO layers is 4

[0442] - Maximum modulation order is 4

[0443] - Supported half-duplex FDD operation type.

[0444] Next, if the second UE processing time is used or the conditions of the second UE processing time are met, other settings are described according to various embodiments.

[0445] In some embodiments, N1 in the second UE processing time is used when at least one of the following conditions is met: higher layer signaling enables N1 in the second UE processing time, and the second UE processing time capability is configured.

[0446] In some embodiments, if N1 in the second type of UE processing time is used (or applied), an associated time associated with the second type of UE processing time may be determined.

[0447] The associated time includes at least one of the following:

[0448] 1. The minimum time between the last symbol of the PDSCH corresponding to the SI-RNTI and the starting symbol of the retransmission of an earlier PDSCH;

[0449] 2. The duration from the last symbol of the PDCCH to the first symbol of the HARQ-ACK information;

[0450] 3. The duration between the last symbol of the second DCI indicating the second resource of the PUCCH and the first symbol of the PUCCH resource indicated by the first DCI, during which the UE is expected to multiplex HARQ-ACK information corresponding to the second DCI format in the PUCCH resource, or the duration in the PRACH process.

[0451] In some embodiments, in a given scheduled cell, for any PDSCH corresponding to the System Information (SI)-Radio Network Temporary Identifier (RNTI), the UE does not need to decode retransmissions of previous PDSCHs whose start symbols are less than N symbols after the last symbol of the PDSCH, where the value of N depends on the PDSCH subcarrier spacing configuration μ and the N1 processing time. For example, if N1 in the first or third UE processing time is used, then N=13 when μ=0, N=13 when μ=1, N=20 when μ=2, and N=24 when μ=3. If N1 in the second UE processing time is used, the value of N is increased by X1, where X1 is a positive number and less than 20. For example, X1=3. In another example, X1 is associated with the SCS.

[0452] In some embodiments, the duration from the last symbol of the PDCCH to the first symbol of the HARQ-ACK information is N symbols. The value of N is associated with the SCS and higher layer signaling. If for a serving cell with PDCCH, if processingType2Enabled of PDSCH-ServingCellConfig is set to enable, then N=5 when μ=0, N=5.5 when μ=1, and N=11 when μ=2. If higher layer signaling to enable the second UE processing time for a serving cell with PDCCH is set to enabled, then N=10+X2 when μ=0, N=12+X3 when μ=1, N=22+X4 when μ=2, and N=25+X5 when μ=3. Otherwise, N=10 when μ=0, N=12 when μ=1, N=22 when μ=2, and N=25 when μ=3, where μ corresponds to the minimum SCS configuration between the SCS configuration of the PDCCH and the SCS configuration of the PUCCH carrying the HARQ-ACK information.

[0453] In some embodiments, the duration from the last symbol of the PDCCH to the first symbol of the HARQ-ACK information is N symbols. The value of N is associated with the SCS and the UE processing time type. For example, the value of N when using N1 in the second UE processing time is greater than the value of N when using N1 in the first or third UE processing time.

[0454] The PDCCH is at least one of the following: a PDCCH providing an SPS PDSCH release, or a PDCCH providing DCI format 1_1 indicating secondary cell (SCell) sleep. The HARQ-ACK information is in response to the detection of an SPS PDSCH release or DCI format 1_1. X2, X3, X4, and X5 can be positive numbers and can be less than 20. For example, X2 = X3 = X4 = X5 = 4.

[0455] In some embodiments, reference Figure 4 , if the UE detects a first DCI (DCI 1) format indicating a first resource with a PUCCH (PUCCH 1) having corresponding HARQ-ACK information transmitted in one time slot, and later detects a second DCI (DCI 2) format indicating a second resource with a PUCCH (PUCCH 2) having corresponding HARQ-ACK information transmitted in the time slot, and if the duration (time 1) is less than N3·(2048+144)·κ·2 -μ ·T C , then the UE does not need to multiplex the HARQ-ACK information corresponding to the second DCI format in the PUCCH resources in the time slot, where κ is T S and T C The ratio of T C is the basic time unit of NR, T S N3 is the basic time unit of LTE, and μ corresponds to the smallest SCS configuration among the SCS configuration of the PDCCH providing the DCI format and the SCS configuration of the PUCCH. N3 is associated with the SCS and the UE processing time type. In some embodiments, if processingType2Enabled of PDSCH-ServingCellConfig is set to enable for a serving cell with a second DCI format and for all serving cells with corresponding HARQ-ACK information multiplexed in a PUCCH transmission in a time slot, N3=3 when μ=0, N3=4.5 when μ=1, and N3=9 when μ=2; if the second UE processing time is used, N3=8+X6 when μ=0, N3=10+X7 when μ=1, N3=17+X8 when μ=2, and N3=20+X9 when μ=3; otherwise, N3=8 when μ=0, N3=10 when μ=1, N3=17 when μ=2, and N3=20 when μ=3, where X6, X7, X8, and X9 can be positive numbers and can be less than 20. For example, X6=X7=4, X8=X9=8. In another example, X6, X7, X8, and X9 are associated with the SCS. In some embodiments, the N3 value of the second UE processing time is greater than the N3 value of the first or third UE processing time.

[0456] In some embodiments, the duration (Time 2) is associated with the PDSCH processing time in the PRACH procedure. If N1 of the second UE processing time is used, then Time 2 is associated with N1 of the second UE processing time, otherwise, when additional PDSCH DM-RS is configured, then Time 2 is associated with N1 of UE processing capability 1.

[0457] Duration (time2) can be at least one of the following:

[0458] - The time between the last symbol of the PDSCH reception conveying the RAR message with the RAR UL grant and the first symbol of the corresponding PUSCH transmission scheduled by the RAR UL grant;

[0459] - the time between the timeslot in which a timing advance command is received and the symbol to which the corresponding adjustment of the uplink transmission timing applies, the timing advance command being used for transmissions other than PUSCH scheduled by a RAR UL grant or PUCCH with HARQ-ACK information in response to a success RAR;

[0460] - the time between the last symbol of the window or the last symbol of PDSCH reception and the first symbol of PRACH transmission (if the higher layer instructs the physical layer to transmit PRACH), where the window is ra-ResponseWindow or msgB-ResponseWindow;

[0461] - The time between the last symbol of PDSCH reception with UE contention resolution indicator and the first symbol of the corresponding PUCCH transmission with HARQ-ACK information.

[0462] Next, at least N2 in the second UE processing time is described according to various embodiments.

[0463] In some embodiments, in a PRACH procedure, a duration (time 3) is associated with a PUSCH processing time (N2). If use of N2 in the second UE processing time or higher layer signaling associated with N2 in the second UE processing time is set to enabled, then time 3 is associated with N2 in the second UE processing time; otherwise, time 3 is associated with N2 of UE processing capability 1.

[0464] The duration may be at least one of: the time between the last symbol of PDCCH command reception and the first symbol of PRACH transmission (if requested by higher layers); or the time between the time slot in which a timing advance command is received and the symbol to which the corresponding adjustment of the uplink transmission timing is applied, where the timing advance command is used for transmissions other than PUSCH scheduled by RAR UL grant or PUCCH with HARQ-ACK information in response to successRAR.

[0465] In some embodiments, for single cell operation or for carrier aggregation operation in the same frequency band, the UE does not transmit PRACH and PUSCH / PUCCH / SRS in the same slot, or does not transmit PRACH and PUSCH / PUCCH / SRS when the gap between the first or last symbol of a PRACH transmission in a first slot and the last or first symbol of a PUSCH / PUCCH / SRS transmission in a second slot is less than N symbols, respectively. N is associated with the SCS or UE processing time type or higher layer signaling. In some embodiments, if use N2 in the second UE processing time or higher layer signaling associated with N2 in the second UE processing time is set to enabled, N = X10 when μ = 0 or μ = 1, and N = X11 when μ = 2 or μ = 3; otherwise, N = 2 when μ = 0 or μ = 1, and N = 4 when μ = 2 or μ = 3, and μ is the SCS configuration for activating UL BWP, where X10 and X11 can be positive numbers and can be less than 10. In some embodiments, X10 ≥ 2 and X11 ≥ 4.

[0466] Next, available value ranges of K0, K1, K2, CSI-RS triggering offset, SRS offset, K0min, and K2min of the second UE processing time are described according to various embodiments.

[0467] In some embodiments, if the second UE processing time is used, the second available value range of the first parameter is applied, otherwise the first available value range of the first parameter is applied. The first parameter includes at least one of the following: K0, K1, K2, CSI-RS triggering offset, SRS offset, K0min, or K2min.

[0468] In some embodiments, if the second UE processing time is used, the second available value range of K0 or K2 is applied, otherwise the first available value range of K0 or K2 is applied. The first available value range of K0 or K2 can be 0 to 32. The second available value range of K0 or K2 can be 0 to V1, where V1 can be a positive number and can be greater than 32 and less than 64. In some embodiments, V1 is associated with the SCS.

[0469] In some embodiments, if the second UE processing time is used, the second maximum available value of K0 or K2 is applied, otherwise the first maximum available value of K0 or K2 is applied. The first maximum available value of K0 or K2 may be 32. The second maximum available value of K0 or K2 may be V1.

[0470] In some embodiments, if the second UE processing time is used, the second available value range of the CSI-RS triggering offset is applied, otherwise the first available value range of the CSI-RS triggering offset is applied. The first available value range of K0 or K2 can be {0, 1, 2, 3, 4, 5, 6, ..., 15, 16, 24}. The second available value range of the CSI-RS triggering offset can be 0 to V2. V2 can be a positive number and can be greater than 24 and less than 64. For example, V2 can be 48. In some embodiments, V2 is associated with the SCS.

[0471] In some embodiments, if the second UE processing time is used, the second maximum available value of the CSI-RS triggering offset is applied, otherwise the first maximum available value of the CSI-RS triggering offset is applied. The first maximum available value of the CSI-RS triggering offset may be 24 or 32. The second maximum available value of the CSI-RS triggering offset may be V2.

[0472] In some embodiments, if the second UE processing time is used, the second available value range of K1 is applied, otherwise the first available value range of K1 is applied. The first available value range of K1 can be 0 to 15. The second available value range of K1 can be 0 to V3. V3 can be a positive number and can be greater than 16 and less than 64. In some embodiments, V3 is associated with the SCS.

[0473] In some embodiments, if the second UE processing time is used, the second maximum available value of K1 is applied, otherwise the first maximum available value of K1 is applied. The first maximum available value of K1 may be 15. The second maximum available value of K1 may be V3.

[0474] In some embodiments, if the second UE processing time is used, the second available value range of the SRS offset is applied, otherwise the first available value range of the SRS offset is applied. The first available value range of the SRS offset may be 0 to 32. The second available value range of the SRS offset may be 0 to V4. V4 may be a positive number and may be greater than 32 and less than 64. In some embodiments, V4 is associated with the SCS.

[0475] In some embodiments, if the second UE processing time is used, the second maximum available value of the SRS offset is applied, otherwise the first maximum available value of the SRS offset is applied. The first maximum available value of the SRS offset may be 15. The second maximum available value of the SRS offset may be V3.

[0476] In some embodiments, if the second UE processing time is used, the second available value range of K0min or K2min is applied, otherwise the first available value range of K0min or K2min is applied. The first available value range of K0min or K2min can be 0 to 16. The second available value range of K0min or K2min can be 0 to V5. V5 can be a positive number and can be greater than 16 and less than 64. In some embodiments, V5 is associated with the SCS. In some embodiments, V5 is 32.

[0477] In some embodiments, if the second UE processing time is used, the second maximum available value of K0min or K2min is applied, otherwise the first maximum available value of K0min or K2min is applied. The first maximum available value of K0min or K2min may be 16. The second maximum available value of K0min or K2min may be V5.

[0478] In some embodiments, if the second UE processing time is used, the second maximum available value of the UE-reported desired K0min or K2min applies; otherwise, the first maximum available value of the UE-reported desired K0min or K2min applies. The first maximum available value of the UE-reported desired K0min or K2min may be 6 for a 15kHz / 30kHz SCS and 12 for a 60kHz / 120kHz SCS. The second maximum available value of the UE-reported desired K0min or K2min may be V6. V6 may be a positive number greater than 6 and less than 33. In some embodiments, V6 is associated with the SCS.

[0479] In the present disclosure, K0 may be the time slot offset between the DCI and its scheduled PDSCH.

[0480] In the present disclosure, K2 may be the time slot offset between the DCI and its scheduled PUSCH.

[0481] In the present disclosure, K0min may be the minimum value of K0. The minimum K0 parameter indicates the minimum available value of the Time Domain Resource Allocation (TDRA) table and CSI-RS triggering offset of the PDSCH.

[0482] In the present disclosure, K2min may be the minimum value of K2. The minimum K2 parameter represents the minimum available value of the time domain resource allocation table of the PUSCH.

[0483] In the present disclosure, K1 (or d1-DataToUL-ACK) may be the slot offset between PDSCH and HARQ or the slot offset between DCI and HARQ.

[0484] In the present disclosure, the aperiodic CSI-RS triggering offset may be the offset between the time slot containing the DCI triggering the aperiodic NZP CSI-RS resource set and the time slot in which the CSI-RS resource set is transmitted.

[0485] In the present disclosure, the SRS offset may be an offset of the number of time slots between triggering the DCI and the actual transmission of the SRS-ResourceSet.

[0486] Next, the MAC-CE processing time in the second UE processing time will be described according to various embodiments.

[0487] In some embodiments, the duration between the PUCCH with HARQ-ACK information corresponding to the PDSCH and the time slot in which the indication carried by the PDSCH is applied is (time 4). The value of time 4 is determined according to a first condition. According to the first condition, the value of time 4 is the MAC-CE processing time in the first UE processing time or the MAC-CE processing time in the second UE processing time.

[0488] In some embodiments, the PDSCH carries at least one of the following: a PDSCH carrying an activation command and indicating the mapping between the TCI state and the code point of the DCI field "transmission configuration indication"; a PDSCH carrying an activation command and indicating the semi-persistent reporting setting; a PDSCH carrying a deactivation command and indicating the deactivation of the SP CSI-RS / CSI-IM resource set; a PDSCH carrying an activation command for the secondary cell.

[0489] In some embodiments, when the UE receives a secondary cell activation command in the PDSCH that ends in time slot n, the UE takes corresponding actions no earlier than time slot n+k (where n and k are integers), except for the following actions:

[0490] - actions related to CSI reporting of the serving cell activated in time slot n+k,

[0491] - actions taken by the UE in time slot n+k related to the sCellDeactivationTimer associated with the secondary cell, and

[0492] - Related to the CSI report of the serving cell that is inactive in time slot n+k, and the action taken by the UE in the earliest time slot after time slot n+k where the serving cell is active.

[0493] Note that the value of k is related to K1 and the MAC CE processing time in the UE processing time.

[0494] Next, the PDCCH decoding time in the second UE processing time is described according to various embodiments.

[0495] In some embodiments, if the PDCCH decoding time in the second UE processing time is used, or the first condition for the UE to use the second UE processing time is met, or the second UE processing time is used, the first time type will be different from the time of using the PDCCH decoding in the first or third UE processing time. The first time includes at least one of the following: BWP switching delay time, beam switching time, beam reporting time, slot format indication (SFI) application time, channel occupancy (CO) application time, quasi co-location (QCL) duration, search space switching application time, cross-slot scheduling application delay time, minimum time gap or energy saving offset.

[0496] In some embodiments, the first time type when using the PDCCH decoding time in the second UE processing time or the second UE processing time is greater than the second time type when using the PDCCCH decoding time in the first or third UE processing time.

[0497] In some embodiments, the BWP switching delay time (TBWPswitchDelay) is used for DCI-based BWP switching. After the UE receives a BWP switching request in DL timeslot n on the serving cell, the UE should be able to receive PDSCH (for DL-activated BWP switching) or send PUSCH (for UL-activated BWP switching) in the DL or UL timeslot on the new BWP on the serving cell after DL timeslot n + TBWPswitchDelay on the serving cell. In some embodiments, the BWP switching delay time is the time to switch the BWP.

[0498] In some embodiments, the beam switching time may be the minimum number of OFDM symbols between DCI triggering of the aperiodic CSI-RS and the aperiodic CSI-RS transmission.

[0499] In some embodiments, the beam reporting time may be the SFI application time, which may be the time between the DCI carrying the SFI and the time slot / symbol in which the indicated SFI is applied.

[0500] In some embodiments, the CO application time may be the time between the DCI carrying the CO duration and the time slot / symbol in which the indicated CO duration is applied.

[0501] In some embodiments, the QCL duration may be the minimum number of OFDM symbols required by the UE between PDCCH reception and applying the spatial QCL information received in the DCI for PDSCH processing.

[0502] In some embodiments, the search space switching time may be the minimum number of symbols / slots between the PDCCH and the slot in which the indicated search space set applies.

[0503] In some embodiments, the cross-slot scheduling application delay time may be the time between the DCI indicating the minimum scheduling offset change and the time slot in which the indicated minimum scheduling offset is applied.

[0504] In some embodiments, the minimum time gap may be the time between the time when the UE is not required to monitor the PDCCH to detect DCI format 2_6 and the time slot at which the UE will start the drx-onDurationTimer.

[0505] In some embodiments, the energy saving offset may be the time between the time when the UE starts monitoring the PDCCH to detect DCI format 2_6 according to the number of search space sets and the time slot when the drx-onDuarationTimer will start on the primary cell (PCell) or special cell (SpCell).

[0506] In some embodiments, if the PDCCH decoding time in the second UE processing time is used or the first condition for the UE to use the second UE processing time is met, the first time type (T_2) is determined by the first time type in the first or third UE processing time (T_1) and a factor (B1). B1 can be a positive number and can be less than 20.

[0507] In some embodiments, the first time type is at least one of the following: BWP switching delay time, beam switching time, beam reporting time, Quasi Co-Location (QCL) duration, search space switching application time, cross-slot scheduling application delay time, minimum time gap, or energy saving offset. For example, T_2 = T_1 + B1. For another example, T_2 = T_1 * B1. In some embodiments, B1 is associated with at least one of the following: SCS, PDCCH decoding time, repetition number, or higher layer signaling.

[0508] In some embodiments, if the PDCCH decoding time within the second UE processing time is used, or if the first condition for the UE to use the second UE processing time is met, specific higher-layer signaling configures a first time type (T_2) for this situation. In some embodiments, the first time type is configured to be associated with an SCS. In other words, different SCSs can be configured with different first time type values.

[0509] Next, cross-carrier scheduling is described according to various embodiments.

[0510] In some embodiments, if the PDCCH carrying the scheduling DCI is received on one carrier with one OFDM subcarrier spacing, the PDSCH scheduled by the DCI is received on another carrier with another OFDM subcarrier spacing.

[0511] If μPDCCH < μPDSCH, the UE is expected to receive the scheduled PDSCH if the first symbol (including DM-RS) in the PDSCH allocation defined by the slot offset K0 and the start and length indicator SLIV of the scheduling DCI starts no earlier than the first symbol of a PDSCH slot starting from at least Npdsch PDCCH symbols after the end of the PDCCH that schedules the PDSCH, without considering the effect of the reception timing difference between the scheduling cell and the scheduled cell.

[0512] If μPDCCH>PDSCH, the UE expects to receive the scheduled PDSCH if the first symbol (including DM-RS) in the PDSCH allocation defined by the slot offset K0 and the start and length indicator SLIV indicated by the scheduling DCI starts no earlier than Npdsch PDCCH symbols after the end of the PDCCH that schedules the PDSCH, without considering the effect of the reception timing difference between the scheduling cell and the scheduled cell.

[0513] In some embodiments, the Npdsch associated with the first or third UE processing time is less than the Npdsch associated with the second UE processing time.

[0514] In some embodiments, if the first or third UE processing time is used, Npdsch may be according to the following Table 10, and if the second UE processing time is used, Npdsch may be according to the following Table 11. In some embodiments, P1>4, P2>5, P3>10, and P4>14. In some embodiments, P2>1.5*P1, P3>1.5*P2, and P4>1.5*P3.

[0515] Table 10: N in the first or third UE processing time pdsch

[0516] μPDCCH <![CDATA[N pdsch [Symbol]]]> 0 4 1 5 2 10 3 14

[0517] Table 11: N in the second UE processing time pdsch

[0518] μPDCCH <![CDATA[N pdsch [Symbol]]]> 0 P1 1 P2 2 P3 3 P4

[0519] In summary, it is apparent from the foregoing description that embodiments include one or more of the following aspects:

[0520] In some embodiments, UE processing time (eg, to perform, schedule, or operate a transmission) is applied based on a first condition.

[0521] In some embodiments, the UE processing time may include a first UE processing time, a second UE processing time, and a third UE processing time.

[0522] In some embodiments, each UE processing time may include at least one of the following: physical downlink shared channel (PDSCH) processing time N1, physical uplink shared channel (PUSCH) preparation process time N2, medium access control (MAC) control element (CE) processing time, channel state information (CSI) calculation time or physical downlink control channel (PDCCH) decoding time.

[0523] Specifically, the second UE processing time allows for a more relaxed time than the first UE processing time.The third UE processing time only includes N1 and N2.

[0524] In some embodiments, the second UE processing time is characterized by at least one of the following: the PDSCH processing time N1 in the second UE processing time is greater than or equal to the PDSCH processing time N1 in the first UE processing time; the PUSCH preparation process time N2 in the second UE processing time is greater than or equal to the PUSCH preparation process time N2 in the first UE processing time; the MAC CE processing time in the second UE processing time is greater than or equal to the MAC CE processing time in the first UE processing time; the CSI calculation time in the second UE processing time is greater than or equal to the CSI calculation time in the first UE processing time; or the PDCCH decoding time in the second UE processing time is greater than or equal to the PDCCH decoding time in the first UE processing time.

[0525] In some embodiments, the PDSCH processing time N1 in the second UE processing time may be associated with at least one of the following: a PDSCH dedicated demodulation reference signal (DMRS), a subcarrier spacing (SCS), a PDSCH mapping type, a frequency range (FR) type, higher layer signaling, a PDSCH processing time in the first UE processing time, UE capability, a UE type (or UE category), or a scaling factor.

[0526] In some embodiments, the PUSCH preparation process time N2 in the second UE processing time may be associated with at least one of the following: SCS, the PUSCH preparation process time N2 in the first UE processing time, UE capability, UE type (or UE category), high-layer signaling, or FR type.

[0527] In some embodiments, the first condition may include at least one of the following: higher layer signaling, UE capability, UE type, DCI, RNTI, BWP, TBS, CORESET, search space set or random access preamble (at least one of sequence or resource or format).

[0528] In some embodiments, for a first UE category (eg, REDCAP UE), a second type of UE processing time may be applied (or used), eg, to perform (eg, operate) a transmission.

[0529] Figure 5 A flow chart illustrating a process according to an embodiment of the present disclosure is shown. Figure 5 The process shown may be used in a wireless terminal (e.g., UE) and includes the following steps:

[0530] Step 500: Send information associated with UE capabilities to a radio network node.

[0531] Step 501: Determine UE processing time based on the information and the first condition.

[0532] Step 502: Perform at least one transmission based on the UE processing time.

[0533] More specifically, the wireless terminal may transmit (e.g., report) information associated with UE capabilities to a radio network node (e.g., a BS or gNB). Based on the reported information and a first condition, the wireless terminal determines a UE processing time and performs at least one transmission based on the UE processing time. In this embodiment, the UE processing time includes one of a first UE processing time, a second UE processing time, or a third UE processing time.

[0534] The characteristics and / or relationship between the first UE processing time, the second UE processing time and the third UE processing time and / or the operation of the wireless terminal can refer to the above embodiments and will not be described again in this article for the sake of brevity.

[0535] Figure 6 A flow chart illustrating a process according to an embodiment of the present disclosure is shown. Figure 6 The process shown in FIG. 1 may be used in a radio network node (e.g., a BS or a gNB) and includes the following steps:

[0536] Step 600: Receive information associated with UE capabilities from a wireless terminal.

[0537] Step 601: Determine UE processing time based on the information and the first condition.

[0538] Step 602: Perform at least one transmission based on the UE processing time.

[0539] Specifically, the wireless network may receive information associated with UE capabilities from a wireless terminal (e.g., a UE). Based on the reported information and a first condition, the wireless network node determines a UE processing time and performs at least one transmission based on the UE processing time. Note that the UE processing time includes one of a first UE processing time, a second UE processing time, or a third UE processing time.

[0540] In one embodiment, the radio network node sends higher layer signaling to the wireless terminal indicating that one of the first UE processing time, the second UE processing time, or the third UE processing time is the UE processing time. In another embodiment, the radio network node sends higher layer signaling to the wireless terminal indicating that at least one of the first UE processing time, the second UE processing time, or the third UE processing time is enabled / disabled.

[0541] The characteristics and / or relationship between the first UE processing time, the second UE processing time and the third UE processing time and / or the operation of the wireless network node can refer to the above embodiments and will not be repeated herein for the sake of brevity.

[0542] Although various embodiments of the present disclosure have been described above, it should be understood that these embodiments are presented by way of example only and not by way of limitation. Similarly, various figures may depict exemplary architectures or configurations, which are provided to enable those of ordinary skill in the art to understand the exemplary features and functions of the present disclosure. However, those of ordinary skill in the art will understand that the present disclosure is not limited to the example architectures or configurations shown, but may be implemented using various alternative architectures and configurations. In addition, as will be understood by those of ordinary skill in the art, one or more features of one embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments.

[0543] It should also be understood that any reference to an element herein using designations such as "first," "second," etc., does not generally limit the quantity or order of those elements. Rather, these designations may be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to a first and a second element does not mean that only two elements may be used, or that the first element must precede the second element in some manner.

[0544] Furthermore, those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols referenced in the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0545] Those skilled in the art will further understand that any of the various illustrative logical blocks, units, processors, devices, circuits, methods, and functions described in connection with the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of both), firmware, various forms of programs or design codes containing instructions (referred to herein as "software" or "software units" for convenience), or any combination of these processes.

[0546] In order to clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, units, circuits and steps have been generally described above in terms of their functions. Whether such functionality is implemented as hardware, firmware or software, or a combination of these processes, depends on the specific application and design constraints imposed on the entire system. A skilled person can implement the described functionality in various ways for each specific application, but such implementation decisions do not result in a departure from the scope of this disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc. can be configured to perform one or more functions described herein. The terms "configured to" or "configured for" as used herein with respect to a particular operation or function refer to that the processor, device, component, circuit, structure, machine, unit, etc. is physically constructed, programmed and / or configured to perform a particular operation or function.

[0547] In addition, those skilled in the art will understand that the various illustrative logic blocks, units, devices, components and circuits described herein can be implemented within or performed by an integrated circuit (IC), which can 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 or any combination thereof. The logic blocks, units and circuits can also include antennas and / or transceivers to communicate with various components within a network or within a device. The general-purpose processor can be a microprocessor, but alternatively, the processor can also be any conventional processor, controller or state machine. The processor can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other suitable configuration that performs the functions described herein. If implemented in software, these functions can be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium.

[0548] Computer-readable media include computer storage media and communication media, including any medium that can transfer a computer program or code from one place to another. A storage medium can be any available medium that a computer can access. By way of example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0549] As used herein, the term "unit" refers to software, firmware, hardware, and any combination of these elements for performing the relevant functions described herein. In addition, for ease of discussion, various units are described as discrete units; however, it is obvious to those skilled in the art that two or more units can be combined to form a single unit that performs the relevant functions according to the embodiments of the present disclosure.

[0550] In addition, memory or other storage devices and communication components may be used in embodiments of the present disclosure. It should be understood that, for the sake of clarity, the above description has described embodiments of the present disclosure with reference to different functional units and processors. However, it is apparent that any suitable distribution of functions between different functional units, processing logic elements or domains may be used without departing from the present disclosure. For example, a function described as being performed by a separate processing logic element or controller may be performed by the same processing logic element or controller. Therefore, a reference to a particular functional unit is merely a reference to a suitable device for providing the function, rather than an indication of a strict logical or physical structure or organization.

[0551] Various modifications to the implementations described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other implementations without departing from the scope of this disclosure. Therefore, the present disclosure is not intended to be limited to the implementations shown herein, but is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as set forth in the following claims.

Claims

1. A wireless communication method used in a wireless terminal, the wireless communication method comprising: sending information associated with user equipment UE capabilities to a radio network node, determining a UE processing time based on the information and the first condition, and performing at least one transmission based on the UE processing time, The UE processing time includes one of a first UE processing time, a second UE processing time, or a third UE processing time, and The first condition includes the UE category, The UE category includes the following capabilities: support for half-duplex frequency division duplex (FDD) operation type A, and If the UE receives a physical downlink shared channel PDSCH of a specific RAR message, the second UE processing time is used.

2. The wireless communication method according to claim 1, wherein: The second UE processing time is greater than the first UE processing time.

3. The wireless communication method according to claim 1, wherein: Each UE processing time includes at least one of the following: Physical Downlink Shared Channel PDSCH processing time, or Physical uplink shared channel PUSCH preparation process time.

4. The wireless communication method according to claim 3, wherein: The PDSCH processing time corresponding to the second UE processing time is associated with at least one of the following: a PDSCH dedicated demodulation reference signal DMRS, a subcarrier spacing SCS, a PDSCH mapping type, a type of frequency range FR, high-layer signaling, a PDSCH processing time corresponding to the first UE processing time, a user equipment UE capability of the wireless terminal, a UE type of the wireless terminal, a UE category of the wireless terminal, or a scaling factor. The wireless communication method according to claim 4 , wherein: The PDSCH processing time is positively correlated with the SCS. The wireless communication method according to claim 3 , wherein: The UE processing time includes a PDSCH processing time of the second UE processing time, wherein a first time period associated with the second UE processing time is greater than a first time period associated with the first UE processing time, and The first time period is associated with the UE processing time and includes at least one of the following: The minimum time between the last symbol of the PDSCH corresponding to the system information radio network temporary identifier SI-RNTI and the start symbol of the retransmission of the PDSCH before the PDSCH, The duration from the last symbol of the PDCCH to the first symbol of the corresponding hybrid automatic repeat request confirmation HARQ-ACK information, The duration between the last symbol of the second downlink control information DCI indicating the second resource of the PUCCH and the first symbol of the PUCCH resource indicated by the first DCI, the wireless terminal multiplexing the HARQ-ACK information corresponding to the second DCI format in the PUCCH resource, or Duration of the Physical Random Access Channel (PRACH) process.

7. The wireless communication method according to claim 6, wherein: In a PRACH process, a duration is associated with a PDSCH processing time, wherein the duration is at least one of the following: - The time between the last symbol of the PDSCH reception conveying the RAR message with the RAR UL grant and the first symbol of the corresponding PUSCH transmission scheduled by the RAR UL grant; - the time between the timeslot in which a timing advance command is received and the symbol to which the corresponding adjustment of the uplink transmission timing applies, wherein the timing advance command is used for transmissions other than PUSCH scheduled by RAR UL grant or PUCCH with HARQ-ACK information in response to successRAR; - the time between the last symbol of the window or the last symbol received for PDSCH and the first symbol transmitted for PRACH, where the window is ra-ResponseWindow or msgB-ResponseWindow; or - The time between the last symbol of PDSCH reception with UE contention resolution indicator and the first symbol of the corresponding PUCCH transmission with HARQ-ACK information.

8. A wireless communication method for use in a wireless network node, the wireless communication method comprising: receiving information associated with user equipment (UE) capabilities from a wireless terminal, determining a UE processing time based on the information and the first condition, and performing at least one transmission based on the UE processing time, in, The UE processing time includes one of a first UE processing time, a second UE processing time, or a third UE processing time, and The first condition includes the UE category, The UE category includes the following capabilities: support for half-duplex frequency division duplex (FDD) operation type A, and If the UE receives a physical downlink shared channel PDSCH of a specific RAR message, the second UE processing time is used.

9. The wireless communication method according to claim 8, wherein: The second UE processing time is greater than the first UE processing time.

10. The wireless communication method according to claim 8, wherein: Each UE processing time includes at least one of the following: Physical Downlink Shared Channel PDSCH processing time, or Physical uplink shared channel PUSCH preparation process time.

11. The wireless communication method according to claim 10, wherein: The PDSCH processing time corresponding to the second UE processing time is associated with at least one of the following: a PDSCH dedicated demodulation reference signal DMRS, a subcarrier spacing SCS, a PDSCH mapping type, a type of frequency range FR, high-layer signaling, the PDSCH processing time corresponding to the first UE processing time, the user equipment UE capability of the wireless terminal, the UE type of the wireless terminal, the UE category of the wireless terminal or a scaling factor.

12. The wireless communication method according to claim 11, wherein: The PDSCH processing time is positively correlated with the SCS.

13. The wireless communication method according to claim 10, wherein: The UE processing time includes a PDSCH processing time of the second UE processing time, wherein a first time period associated with the second UE processing time is greater than a first time period associated with the first UE processing time, and The first time period is associated with the UE processing time and includes at least one of the following: The minimum time between the last symbol of the PDSCH corresponding to the system information radio network temporary identifier SI-RNTI and the start symbol of the retransmission of the PDSCH before the PDSCH, The duration from the last symbol of the PDCCH to the first symbol of the corresponding hybrid automatic repeat request confirmation HARQ-ACK information, a duration between a last symbol of second downlink control information DCI indicating a second resource of a PUCCH and a first symbol of the PUCCH resource indicated by the first DCI, in which the wireless terminal multiplexes HARQ-ACK information corresponding to the second DCI format, or Duration of the Physical Random Access Channel (PRACH) process.

14. The wireless communication method according to claim 13, wherein: In a PRACH process, a duration is associated with a PDSCH processing time, wherein the duration is at least one of the following: - The time between the last symbol of the PDSCH reception conveying the RAR message with the RAR UL grant and the first symbol of the corresponding PUSCH transmission scheduled by the RAR UL grant; - the time between the timeslot in which a timing advance command is received and the symbol to which the corresponding adjustment of the uplink transmission timing applies, wherein the timing advance command is used for transmissions other than PUSCH scheduled by RAR UL grant or PUCCH with HARQ-ACK information in response to successRAR; - the time between the last symbol of the window or the last symbol received for PDSCH and the first symbol transmitted for PRACH, where the window is ra-ResponseWindow or msgB-ResponseWindow; or - The time between the last symbol of PDSCH reception with UE contention resolution indicator and the first symbol of the corresponding PUCCH transmission with HARQ-ACK information.

15. A wireless terminal comprising: A processor, wherein the processor is configured to execute the wireless communication method according to any one of claims 1 to 7.

16. A wireless network node comprising: a processor, wherein: The processor is configured to execute the wireless communication method according to any one of claims 8 to 14.

17. A computer program product comprising computer-readable program medium code stored thereon, wherein when the code is executed by a processor, the processor is caused to perform the wireless communication method according to any one of claims 1 to 14.

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