A wireless communication method for determining spatial relationships and power control parameters for uplink signals

Abstract

To provide a wireless communication method, system and device for determining spatial relation and power control parameter for uplink signals.SOLUTION: A method for use in a wireless terminal includes a step in which, when a component carrier of UL signal is configured with at least one CORESET, a path-loss RS of at least one PUCCH is determined based on a reference signal (RS) of a transmission configuration indicator (TCI) state applied for a control resource set (CORESET) with the lowest index within the at least one CORESET or a Quasi co-location (QCL) assumption for the CORESET with the lowest index within the at least one CORESET.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] This document generally relates to wireless communication, and more particularly to a wireless communication method for determining spatial relationships and power control parameters for uplink signals.

Background Art

[0002] In exchange for wideband or ultra-wideband spectrum resources, significant propagation losses caused by extremely high frequencies become a prominent issue. To solve this problem, antenna arrays and beamforming (BF) training techniques that use massive multiple-input multiple-output (MIMO), such as up to 1024 antenna elements for example for one node, are adopted to achieve beam alignment and obtain a sufficiently large antenna gain. Further, analog phase shifters become very attractive with respect to the realization of millimeter-wave beamforming in order to maintain a low implementation cost while still benefiting from the antenna array. When adopting analog phase shifters, the number of controllable phases is limited, and certain modulus constraints are imposed on these antenna elements. In view of a pre-specified beam pattern, BF training based on variable phase shifts generally aims to identify the best pattern for subsequent data transmission. FIG. 1 shows a schematic diagram of a case having one transmit-receive point (TRP) and one user equipment (UE). In FIG. 1, the beam painted by solid black is selected for transmission based on uplink / downlink transmission.

[0003] In 5G New Radio (NR), analog beamforming is first introduced into mobile communications to ensure the robustness of high-frequency communications. The corresponding analog beamforming indication (also called beam indication) includes both downlink (DL) transmission and uplink (UL) transmission. Regarding UL transmission, spatial relation information configured by a new upper layer parameter, spatialRelationInfo, is introduced to support beam indication for the UL control channel, i.e., the Physical Uplink Control Channel (PUCCH), and the sounding reference signal (SRS). Further, beam indication for the UL data channel, i.e., the Physical Uplink Shared Channel (PUSCH), is achieved through the mapping between one or more SRS resources indicated by the NR base station (i.e., gNB) and the antenna ports of the UL data channel. That is, the beam configuration for the UL data channel can be derived from the association / mapping information of the spatial relation information between the SRS resource and the antenna port. However, the introduction of new upper layer parameters to support beam indication may increase the overhead of the upper layer parameters.

[0004] This document relates to a method, system, and device for determining spatial relation and power control parameters for uplink signals.

SUMMARY OF THE INVENTION

MEANS FOR SOLVING THE PROBLEM

[0005] This disclosure relates to wireless communication for use in a wireless terminal. The wireless communication method includes determining at least one of at least one power control parameter or a spatial relation for a first uplink signal in a first component carrier; and transmitting the first uplink signal in the first component carrier to a wireless network node based on the determined at least one power control parameter or at least one of the determined spatial relations. including

[0006] Various embodiments can preferably implement the following features. Preferably, when the Transmit Configuration Indicator (TCI) state has multiple Reference Signal (RS) indexes, the RS index associated with the Quasi-Co-Location (QCL) type of spatial parameters is used to determine at least one of the power control parameters or the spatial relationship of the first uplink signal.

[0007] Preferably, at least one power control parameter includes a path loss RS, the first uplink signal includes at least one Physical Uplink Control Channel (PUCCH), and the wireless terminal receives a Medium Access Control (MAC) Control Element (CE) for updating the path loss RS of at least one PUCCH.

[0008] Preferably, the spatial relationship is determined based on at least one transmission parameter associated with the downlink signal in the first component carrier.

[0009] Preferably, the first uplink signal includes at least one of a Sounding Reference Signal (SRS), a Physical Uplink Shared Channel (PUSCH), or a PUCCH.

[0010] Preferably, at least one transmission parameter includes at least one of a spatial domain filter, a Transmit Configuration Indicator (TCI) state, or a Quasi-Co-Location (QCL) assumption.

[0011] Preferably, when the first component carrier is composed of at least one Control Resource Set (CORESET), the spatial relationship of the first uplink signal is determined based on at least one transmission parameter of the CORESET having the lowest index among at least one CORESET.

[0012] Preferably, the CORESET having the lowest index and the first uplink signal are associated with the same CORESET pool index or the same CORESET group.

[0013] Preferably, when the first component carrier is not configured by a CORESET, the spatial relationship of the first uplink signal is determined based on the TCI state having the lowest index among at least one TCI state activated for the downlink signal.

[0014] Preferably, when at least one TCI state for the downlink signal is not configured or not activated, the spatial relationship of the first uplink signal is determined based on at least one transmission parameter of a CORESET or a PDCCH, where the CORESET or the PDCCH schedules the first uplink signal.

[0015] Preferably, the first uplink signal includes at least one physical uplink control channel (PUCCH), and at least one power control parameter includes at least one of the target power of at least one PUCCH, the closed-loop index, or the path loss reference signal (RS).

[0016] Preferably, the target power of at least one PUCCH has an entry having one of a specific index, the highest index, or the lowest index within a target power set. It is determined by a tri.

[0017] Preferably, the closed-loop index of at least one PUCCH is one of a specific index, the highest index, or the lowest index within the range of the closed-loop index.

[0018] Preferably, at least one closed-loop index of the PUCCH is determined based on a TCI state applied to a CORESET having the lowest index among at least one CORESET, or a TCI state having the lowest index among at least one TCI state activated for a downlink signal in a first component carrier.

[0019] Preferably, when the first component carrier is composed of at least one CORESET, the path loss RS of at least one PUCCH is determined based on the RS of the TCI state applied to the CORESET having the lowest index among at least one CORESET, or based on the QCL assumption regarding the CORESET having the lowest index among at least one CORESET.

[0020] Preferably, the path loss RS of at least one PUCCH is determined based on the RS of the TCI state having the lowest index among at least one TCI state activated for a downlink signal in the first component carrier.

[0021] Preferably, the first component carrier is not composed of a CORESET. Preferably, the first uplink signal includes at least one SRS, and at least one power control parameter includes at least one of the target power of at least one SRS, a scaling factor, a power control adjustment state, or a path loss RS.

[0022] Preferably, at least one of the target power or the scaling factor of at least one SRS is determined based on an SRS resource set configured by at least one upper layer parameter.

[0023] Preferably, the power control adjustment state of at least one SRS is set to be the same as the power control adjustment state of the transmission of a physical uplink shared channel (PUSCH).

[0024] Preferably, when the first component carrier is composed of at least one CORESET, the path loss RS of at least one SRS is the RS of the TCI state applied to the CORESET having the lowest index among at least one CORESET, or is determined based on the QCL assumption regarding the CORESET having the lowest index among at least one CORESET.

[0025] Preferably, the path loss RS of at least one SRS is determined based on the RS of the TCI state having the lowest index among at least one TCI state activated for the downlink signal in the first component carrier.

[0026] Preferably, the first component carrier is not composed of a CORESET. Preferably, the first uplink signal includes at least one PUSCH, and at least one power control parameter includes at least one of the target power of at least one PUSCH, a scaling factor, a closed-loop index, or the path loss RS.

[0027] Preferably, the target power of at least one PUSCH is determined by an entry having one of a specific index, the highest index, or the lowest index in a target power set or a mapping set between an SRS resource indicator (SRI) and a PUSCH power control parameter.

[0028] Preferably, the scaling factor of at least one PUSCH is determined by an entry having one of a specific index, the highest index, or the lowest index in a scaling factor set or a mapping set between an SRI and a PUSCH power control parameter.

[0029] Preferably, at least one closed-loop index of the PUSCH is one of a specific index, the highest index, or the lowest index within the range of the closed-loop index.

[0030] Preferably, the path loss RS of at least one PUSCH is determined according to the path loss RS associated with the SRS associated with at least one PUSCH.

[0031] Preferably, at least one PUSCH is not composed of the path loss RS. Preferably, the first uplink signal is not composed of spatial relationships.

[0032] Preferably, the first uplink signal is not composed of at least one power control parameter.

[0033] Preferably, the first uplink signal includes at least one of SRS, PUSCH, or PUCCH, and at least one power control parameter includes the path loss RS.

[0034] Preferably, the first uplink signal includes at least one PUSCH, and at least one power control parameter includes the path loss RS of the SRS associated with at least one PUSCH.

[0035] Preferably, the first uplink signal includes at least one PUSCH. Preferably, the SRS for non-codebook transmission or codebook transmission is not composed of the path loss RS.

[0036] Preferably, the wireless terminal receives a MAC-CE activation command for activating the TCI state, or receives a configuration command regarding the TCI state.

[0037] Preferably, the wireless terminal receives a MAC-CE activation command for activating or updating at least one power control parameter, or receives a configuration command regarding at least one power control parameter, and the at least one power control parameter includes at least one of a target power, a scaling factor, or a closed-loop index.

[0038] Preferably, the wireless communication method further includes a step of receiving signaling configured to determine at least one power control parameter for a first uplink signal.

[0039] Preferably, the first uplink signal includes at least one PUCCH, and the spatial relationship of the at least one PUCCH is not configured.

[0040] Preferably, when the time unit of the first uplink signal in the first component carrier collides with the time unit of the second uplink signal in the second component carrier, at least one of the spatial relationship of the first uplink signal or the path loss RS is determined based on at least one of the spatial relationship of the second uplink signal or the path loss RS.

[0041] Preferably, when the time unit of the first uplink signal in the first component carrier collides with the time unit of the second uplink signal in the second component carrier, the first uplink signal is prioritized for uplink transmission.

[0042] Preferably, when the time unit of the first uplink signal in the first component carrier collides with the time unit of the second uplink signal in the second component carrier, the uplink transmission of the second uplink signal is withheld.

[0043] Preferably, the index of the first component carrier is smaller than the index of the second component carrier.

[0044] Preferably, when the index of the first component carrier is larger than the index of the second component carrier.

[0045] Preferably, the first component carrier is composed of at least one CORESET, and the second component carrier is not composed of a CORESET.

[0046] Preferably, the first component carrier is not composed of a CORESET, and the second component carrier is composed of at least one CORESET.

[0047] Preferably, the first component carrier and the second component carrier are included in a component carrier group or a bandwidth part.

[0048] Preferably, at least one of the power control parameters or the spatial relationship of the first uplink signal is determined based on at least one of the transmission parameters of the downlink signal.

[0049] Preferably, the downlink signal is determined according to the slot that overlaps with the first uplink signal.

[0050] Preferably, the downlink signal is a CORESET having the lowest index among at least one CORESET in the latest slot before the slot that overlaps with the first uplink signal.

[0051] Preferably, the slot that overlaps with the first uplink signal is the first slot that overlaps with the first uplink signal, or the first slot that completely overlaps with the first uplink signal.

[0052] Preferably, the slot overlapping with the first uplink signal is the last slot overlapping with the slot of the first uplink signal or the last slot completely overlapping with the slot of the first uplink signal.

[0053]

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[0054]

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[0055] The present disclosure relates to a wireless communication method for use in a wireless network node. The wireless communication method includes receiving, from a wireless terminal, a first uplink signal in a first component carrier based on at least one of at least one power control parameter or at least one spatial relationship of the first uplink signal.

[0056] Various embodiments can preferably implement the following features. Preferably, when a transmission configuration indicator (TCI) state has a plurality of reference signal (RS) indexes, the RS index associated with the quasi-collocation (QCL) type of the spatial parameter is used to determine at least one of at least one power control parameter or at least one spatial relationship of the first uplink signal.

[0057] Preferably, the at least one power control parameter includes a path loss RS, the first uplink signal includes at least one physical uplink control channel (PUCCH), and the wireless network node transmits a media access control (MAC) control element (CE) for updating the path loss RS of the at least one PUCCH.

[0058] Preferably, the spatial relationship is determined based on at least one transmission parameter associated with the downlink signal in the first component carrier.

[0059] Preferably, the first uplink signal comprises at least one of a sounding reference signal (SRS), a physical uplink shared channel (PUSCH), or a PUCCH.

[0060] Preferably, the at least one transmission parameter comprises at least one of a spatial domain filter, a transmission configuration indicator (TCI) state, or a quasi-collocation (QCL) assumption.

[0061] Preferably, when the first component carrier is configured with at least one control resource set (CORESET), the spatial relationship of the first uplink signal is determined based on at least one transmission parameter of the CORESET having the lowest index among the at least one CORESET.

[0062] Preferably, the CORESET having the lowest index and the first uplink signal are associated with the same CORESET pool index or the same CORESET group. associated.

[0063] Preferably, when the first component carrier is not configured with a CORESET, the spatial relationship of the first uplink signal is determined based on the TCI state having the lowest index among at least one TCI state activated for the downlink signal.

[0064] Preferably, when at least one TCI state for the downlink signal is not configured or not activated, the spatial relationship of the first uplink signal is determined based on at least one transmission parameter of a CORESET or a PDCCH that schedules the first uplink signal.

[0065] Preferably, the first uplink signal comprises at least one physical uplink control channel (PUCCH), and at least one power control parameter comprises at least one of the target power of at least one PUCCH, the closed-loop index, or the path loss reference signal (RS).

[0066] Preferably, the target power of at least one PUCCH is determined by an entry having one of a specific index, the highest index, or the lowest index within a target power set.

[0067] Preferably, the closed-loop index of at least one PUCCH is one of a specific index, the highest index, or the lowest index within the range of the closed-loop index.

[0068] Preferably, the closed-loop index of at least one PUCCH is determined based on the TCI state applied to the CORESET having the lowest index among at least one CORESET, or the TCI state having the lowest index among at least one TCI state activated for the downlink signal in the first component carrier.

[0069] Preferably, when the first component carrier is composed of at least one CORESET, the path loss RS of at least one PUCCH is determined based on the RS of the TCI state applied to the CORESET having the lowest index among at least one CORESET, or the QCL assumption regarding the CORESET having the lowest index among at least one CORESET.

[0070] Preferably, at least one path loss RS of the PUCCH is determined based on the RS of the TCI state having the lowest index among at least one TCI state activated for the downlink signal in the first component carrier.

[0071] Preferably, the first component carrier is not configured by a CORESET. Preferably, the first uplink signal includes at least one SRS, and at least one power control parameter includes at least one of the target power of the at least one SRS, a scaling factor, a power control adjustment state, or a path loss RS.

[0072] Preferably, at least one of the target power or the scaling factor of the at least one SRS is determined based on an SRS resource set configured by at least one upper layer parameter.

[0073] Preferably, the power control adjustment state of the at least one SRS is set to be the same as the power control adjustment state of the transmission of the physical uplink shared channel (PUSCH).

[0074] Preferably, when the first component carrier is configured by at least one CORESET, the path loss RS of the at least one SRS is the RS of the TCI state applied to the CORESET having the lowest index among at least one CORESET, or is determined based on the QCL assumption regarding the CORESET having the lowest index among at least one CORESET.

[0075] Preferably, the path loss RS of the at least one SRS is determined based on the RS of the TCI state having the lowest index among at least one TCI state activated for the downlink signal in the first component carrier.

[0076] Preferably, the first component carrier is not composed of a CORESET. Preferably, the first uplink signal includes at least one PUSCH, and at least one power control parameter includes at least one of the target power of at least one PUSCH, a scaling factor, a closed-loop index, or a path loss RS.

[0077] Preferably, the target power of at least one PUSCH is determined by an entry having one of a specific index, a highest index, or a lowest index in a target power set or a mapping set between an SRS resource indicator (SRI) and a PUSCH power control parameter.

[0078] Preferably, the scaling factor of at least one PUSCH is determined by an entry having one of a specific index, a highest index, or a lowest index in a scaling factor set or a mapping set between an SRI and a PUSCH power control parameter.

[0079] Preferably, the closed-loop index of at least one PUSCH is one of a specific index, a highest index, or a lowest index within the range of the closed-loop index.

[0080] Preferably, the path loss RS of at least one PUSCH is determined according to the path loss RS associated with the SRS associated with at least one PUSCH.

[0081] Preferably, at least one PUSCH is not composed of a path loss RS. Preferably, the first uplink signal is not composed in a spatial relationship.

[0082] Preferably, the first uplink signal is not composed of at least one power control parameter.

[0083] Preferably, the first uplink signal comprises at least one of SRS, PUSCH, or PUCCH, and the at least one power control parameter comprises path loss RS.

[0084] Preferably, the first uplink signal comprises at least one PUSCH, and the at least one power control parameter comprises path loss RS of SRS associated with the at least one PUSCH.

[0085] Preferably, the first uplink signal comprises at least one PUSCH, and SRS for non-codebook transmission or codebook transmission is not constituted by path loss RS.

[0086] Preferably, the radio network node transmits a MAC-CE activation command for activating the TCI state, or transmits a configuration command regarding the TCI state.

[0087] Preferably, the radio network node transmits a MAC-CE activation command for activating or updating the at least one power control parameter, or transmits a configuration command regarding the at least one power control parameter, and the at least one power control parameter comprises at least one of target power, scaling factor, or closed-loop index.

[0088] Preferably, the wireless communication method further comprises the step of transmitting signaling configured to determine at least one power control parameter for the first uplink signal to the wireless terminal.

[0089] Preferably, the first uplink signal comprises at least one PUCCH, Preferably, the spatial relationship of the at least one PUCCH is not configured.

[0090] Preferably, when the time unit of the first uplink signal in the first component carrier collides with the time unit of the second uplink signal in the second component carrier, at least one of the spatial relationship or path loss RS of the first uplink signal is determined based on at least one of the spatial relationship or path loss RS of the second uplink signal.

[0091] Preferably, when the time unit of the first uplink signal in the first component carrier collides with the time unit of the second uplink signal in the second component carrier, the first uplink signal is prioritized for uplink transmission.

[0092] Preferably, when the time unit of the first uplink signal in the first component carrier collides with the time unit of the second uplink signal in the second component carrier, the uplink transmission of the second uplink signal is suppressed.

[0093] Preferably, the index of the first component carrier is smaller than the index of the second component carrier.

[0094] Preferably, when the index of the first component carrier is larger than the index of the second component carrier.

[0095] Preferably, the first component carrier is composed of at least one CORESET, and the second component carrier is not composed of a CORESET.

[0096] Preferably, the first component carrier is not composed of a CORESET, and the second component carrier is composed of at least one CORESET.

[0097] Preferably, the first component carrier and the second component carrier are included in a component carrier group or a bandwidth part.

[0098] Preferably, at least one power control parameter or an empty At least one of the relationships is determined based on at least one of the transmission parameters of the downlink signal.

[0099] Preferably, the downlink signal is determined according to a slot that overlaps with the first uplink signal.

[0100] Preferably, the downlink signal is the CORESET having the lowest index among at least one CORESET in the most recent slot prior to the slot overlapping with the first uplink signal.

[0101] Preferably, the slot that overlaps with the first uplink signal is the first slot that overlaps with the first uplink signal or the first slot that completely overlaps with the first uplink signal.

[0102] Preferably, the slot overlapping with the first uplink signal is the last slot overlapping with a slot of the first uplink signal, or the last slot completely overlapping with a slot of the first uplink signal.

[0103]

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[0104]

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[0105] The present disclosure relates to a wireless terminal, a processor configured to determine at least one of at least one power control parameter or a spatial relationship for a first uplink signal on a first component carrier; A communication unit configured to transmit a first uplink signal in a first component carrier to a radio network node based on at least one determined power control parameter or at least one determined spatial relationship comprises.

[0106] Various embodiments can preferably implement the following features. Preferably, the processor is further configured to execute the wireless communication method among the above-described wireless communication methods.

[0107] This disclosure relates to a radio network node. This radio network node comprises a communication unit configured to receive a first uplink signal in a first component carrier from a wireless terminal and at least one power control parameter or at least one spatial relationship of the first uplink signal is associated with the first uplink signal.

[0108] Various embodiments can preferably implement the following features. Preferably, this radio network node further comprises a processor configured to execute the above-described wireless communication method.

[0109] This disclosure relates to a computer program product including a computer-readable program medium storing code that, when executed by a processor, causes the processor to implement the above-described wireless communication method.

[0110] The exemplary embodiments disclosed herein relate to the presentation of features that will become readily apparent by reference to the following description when considered in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it is understood that these embodiments are presented by way of example and not limitation, and that various modifications to the disclosed embodiments can be made without departing from the scope of the present disclosure, as will be apparent to those skilled in the art upon consideration of the present disclosure.

[0111] Accordingly, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. Further, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary approaches. Based on design preferences, it is possible to re-arrange the specific order or hierarchy of steps of the disclosed methods or processes without departing from the scope of the present disclosure. Thus, those skilled in the art will understand that the methods and techniques disclosed herein are presented by way of example of the order of various steps or operations, and that the present disclosure is not limited to the specific order or hierarchy presented, unless otherwise expressly specified.

[0112] The above and other aspects and their embodiments are described in more detail in the drawings, description, and claims.

Brief Description of the Drawings

[0113]

Figure 1

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DETAILED DESCRIPTION OF THE INVENTION

[0114] FIG. 2 relates to a schematic diagram of a wireless terminal 20 according to an embodiment of the present disclosure. 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 is not limited herein. The wireless terminal 20 can include a processor 200 such as a microprocessor or an application specific integrated circuit (ASIC), a memory unit 210, and a communication unit 220. The memory unit 210 may be any data storage device that stores program code 212 to be accessed and executed by the processor 200. Embodiments of the memory unit 212 may 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 transmit and receive signals (e.g., messages or packets) according to the processing results of the processor 200. In one embodiment, the communication unit 220 transmits and receives signals via at least one antenna 222 shown in FIG. 2.

[0115] In one embodiment, the memory unit 210 and the program code 212 may be omitted, and the processor 200 may include a memory unit storing the program code.

[0116] The processor 200 can implement any one of the steps of the illustrated embodiments in the wireless terminal 20, for example, by executing the program code 212.

[0117] The communication unit 220 may be a transceiver. Alternatively, or in addition, the communication unit 220 may combine a transmission unit and a reception unit each configured to transmit and receive signals to and from a wireless network node (e.g., a base station).

[0118] FIG. 3 relates to a schematic diagram of a wireless network node 30 according to an embodiment of the present disclosure. The wireless network node 30 may be 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), or a radio network controller (RNC), and is not limited herein. The wireless network node 30 can 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 312 include, but are not limited to, a SIM, 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 used to transmit and receive signals (e.g., messages or packets) according to the processing results of the processor 300. In one example, the communication unit 320 transmits and receives signals via at least one antenna 322 shown in FIG. 3.

[0119] In one embodiment, the storage unit 310 and the program code 312 may be omitted. The processor 300 can include a storage unit storing the program code.

[0120] The processor 300 can perform any of the steps described in the illustrated embodiments at the wireless network node 30, for example, by executing program code 312.

[0121] The communication unit 320 may be a transceiver. Alternatively, or in addition to this, the communication unit 320 may combine a transmission unit and a reception unit each configured to transmit and receive signals with a wireless terminal (for example, a user equipment).

[0122] In the present disclosure, it should be noted that the definition of "beam" is equivalent to a quasi-collocation (QCL) state, a transmission configuration an indicator (TCI) state, a spatial relationship state (also referred to as a spatial relationship information state), a reference signal (RS), a spatial filter, or precoding. Specifically, a) The definition of "Tx beam" is equivalent to a QCL state, a TCI state, a spatial relationship state, a DL / UL reference signal (channel state information reference signal (CSI-RS), synchronization signal block (SSB) (also referred to as SS / PBCH), demodulation reference signal (DMRS), sounding reference signal (SRS), and physical random access channel (PRACH), etc.), a Tx spatial filter, or Tx precoding.

[0123] b) The definition of "Rx beam" is equivalent to a QCL state, a TCI state, a spatial relationship state, a spatial filter, an Rx spatial filter, or Rx precoding.

[0124] c) The definition of "beam ID" is equivalent to a QCL state index, a TCI state index, a spatial relationship state index, a reference signal index, a spatial filter index, or a precoding index.

[0125] Specifically, the "spatial filter" may be either on the UE side or the gNB side, and the spatial filter is also referred to as a spatial domain filter.

[0126] In the present disclosure, it should be noted that "spatial relationship information" is composed of one or more references RS, which is used to represent the same or quasi-same "spatial relationship" between the "RS or channel" of the target and one or more references RS.

[0127] In the present disclosure, it should be noted that "spatial relationship" means a beam, a spatial parameter, or a spatial domain filter.

[0128] In the present disclosure, it should be noted that "QCL state" is composed of one or more references RS and their corresponding QCL type parameters, and the QCL type parameters include at least one of the following aspects or combinations: (1) Doppler spread, (2) Doppler shift, (3) delay spread, (4) average delay, (5) average gain, or (6) spatial parameter.

[0129] In the present disclosure, the "TCI state" is equivalent to the "QCL state". In the present disclosure, QCL type D is equivalent to a spatial parameter or a spatial Rx parameter.

[0130] In the present disclosure, it should be noted that the UL signal may be a PUCCH, a PUSCH, or an SRS.

[0131] In the present disclosure, it should be noted that the time unit may be a sub-symbol, a symbol, a slot, a sub-frame, a frame, or a transmission opportunity.

[0132] In the present disclosure, it should be noted that the UL power control parameter includes a target power (also called P0), a path loss RS, a scaling factor of the path loss (also called alpha), or a closed-loop index.

[0133] In the present disclosure, it should be noted that the path loss may be a coupling loss. Note that in the present disclosure, the DL slot to be monitored is equivalent to a slot having a monitoring CORESET or a slot having PDCCH reception.

[0134] Note that in the present disclosure, a component carrier is equivalent to a cell. Note that in the present disclosure, "conflicts with..." is equivalent to "overlaps with..." or "is associated with...".

[0135] Note that in the present disclosure, a higher layer parameter is a parameter having a level higher than the L1 level (e.g., the physical layer), such as an L2 level parameter, an L3 level parameter, or a radio resource control (RRC) parameter, or a medium access control (MAC) control element (CE) parameter.

[0136] In order to reduce the overhead of higher layer parameters, the present disclosure provides a wireless communication method for a wireless terminal / wireless network node, which determines at least one of the power control parameters or the spatial relationship of the uplink (UL) signal in a component without using higher layer parameters constituting a spatial relationship and / or at least one power control parameter.

[0137] In one embodiment, when a transmission configuration indicator TCI state has a plurality of reference signal RS indexes or a plurality of quasi-collocation QCL types, the RS index associated with the QCL type of the spatial parameter (i.e., QCL type D) is used to determine at least one of the power control parameters or the spatial relationship of the UL signal.

[0138] In one embodiment, when a wireless terminal receives a Medium Access Control (MAC) Control Element (CE) configured to update a Path Loss (RS) of at least one Physical Uplink Control Channel (PUCCH) in an UL signal, at least one power control parameter includes at least the Path Loss (RS). That is, when the wireless terminal receives a MAC CE configured to update the Path Loss (RS) of at least one PUCCH in the UL signal, the wireless terminal determines the Path Loss (RS) of the UL signal without being configured by a higher layer parameter.

[0139] In one embodiment, the spatial relationship of the UL signal is determined without being configured by a higher layer parameter. In this embodiment, to reduce the overhead of the higher layer parameter and also to align the beam behavior between the DL signal and the UL signal, the spatial relationship of the UL signal can be determined based on at least one transmission parameter associated with a Downlink (DL) signal on the same component carrier. Note that the UL signal includes at least one of a Sounding Reference Signal (SRS), a Physical Uplink Shared Channel (PUSCH), or a Physical Uplink Control Channel (PUCCH). Further, at least one transmission parameter includes at least one of a spatial domain filter of the DL signal (e.g., a Physical Downlink Shared Channel (PDSCH)), a Transmit Configuration Indicator (TCI) state, or a Quasi-Co-Location (QCL) assumption.

[0140] When a component carrier is composed of at least one control resource set (CORESET) in, for example, a DL signal, the spatial relationship of the UL signal is determined based on the TCI state or QCL assumption of the CORESET having the lowest index (e.g., identification (ID)) within at least one CORESET on the component carrier. In one example, the spatial relationship of the UL signal is determined based on the TCI state or QCL assumption of the CORESET having the lowest index within at least one CORESET in the latest monitored DL slot on the component carrier, and the latest monitored DL slot is a DL slot having at least one CORESET and is a slot prior to the slot in which the UL signal is configured. Details of the determination of the latest monitored DL slot are shown in the following paragraphs.

[0141] In one embodiment, the CORESET having the lowest index and the UL signal are associated with the same CORESET pool index or the same CORESET group.

[0142] In one embodiment, the CORESET can be selected from one or more CORESETS having the same CORESET pool index or the same CORESET group as the UL signal.

[0143] Figure 4 shows a schematic diagram of a component carrier according to an embodiment of the present disclosure. In Figure 4, the component carrier is composed of each of the CORESETs of slots n, n+1, and n+2. Further, the CORESET having the lowest index among the CORESETs of slot n is the CORESET having index 0 (i.e., CORESET #0) and TCI state TCI_1, the CORESET having the lowest index among the CORESETs of slot n+1 is the CORESET having index 1 (i.e., CORESET #1) and TCI state TCI_2, and the CORESET having the lowest index among the CORESETs of slot n+2 is the CORESET having index 0 and TCI state TCI_1. In this embodiment, the spatial relationship of the UL signal is determined based on the TCI state of the CORESET having the lowest index in the latest monitored DL slot. Therefore, the spatial relationship of the SRS SRS_A (i.e., UL signal) in slot n+1 is determined based on the TCT state TCI_2 of CORESET #1, which is the CORESET having the lowest index in the latest monitored DL slot for slot n+1 of SRS SRS_A. Similarly, the spatial relationship of the PUCCH PUCCH_A (i.e., UL signal) in slot n+2 is determined based on the TCT state TCI_1 of CORESET #0, which is the CORESET having the lowest index in the latest monitored DL slot for slot n+2 of PUCCH PUCCH_A.

[0144] In one embodiment, when the component carrier is configured without a CORESET (i.e., not configured with a CORESET), the spatial relationship of the UL signal is determined based on the TCI state having the lowest index among at least one TCI state activated for the DL signal. In one example, when at least one TCI state for the DL signal is not configured or not activated, the spatial relationship of the UL signal is determined based on at least one transmission parameter of the CORESET or PDCCH, and the CORESET or PDCCH schedules the UL signal.

[0145] In one embodiment, when at least one TCI state for the DL signal is not configured or not activated, the spatial relationship of the UL signal is determined based on at least one transmission parameter of the CORESET or PDCCH, and the CORESET or PDCCH schedules the first uplink signal.

[0146] FIG. 5 shows a schematic diagram of a component carrier according to an embodiment of the present disclosure. In FIG. 5, the component carrier is configured without a CORESET, and the TCI state having the lowest index among at least one TCI state activated for the PDSCH (i.e., DL signal) on the component carrier is the TCI state TCI_1. Since the component carrier is not configured with a CORESET, the spatial relationship of the UL signal on the component carrier is determined based on the TCI state TCI_1, which is the TCI state having the lowest index among at least one TCI state activated for the PDSCH. That is, the spatial information of the SRS SRS_B and the PUCCH PUCCH_B in slot n + 2 is determined based on the TCI state TCI_1.

[0147] In one embodiment, at least one power control parameter of a UL signal (e.g., PUSCH, PUCCH, or SRS) is determined without being configured by a higher layer so as to reduce the overhead of higher layer parameters.

[0148] When the UL signal includes at least one PUCCH, the at least one power control parameter determined includes at least one of the target power of the at least one PUCCH (which can be referred to as P0 for example), the closed-loop index, or the path loss RS.

[0149] In one embodiment, the target power of the at least one PUCCH is determined by an entry having one of a specific index (e.g., 0), the highest index, or the lowest index within a set of target powers.

[0150] In one embodiment, the closed-loop index of the at least one PUCCH is one of a specific index (e.g., 0), the highest index, or the lowest index within the range of the closed-loop index.

[0151] In one embodiment, the closed-loop index of the at least one PUCCH is determined based on the TCI state applied to the CORESET having the lowest index among at least one CORESET, or the TCI state having the lowest index among at least one TCI state activated for the DL signal on the component carrier.

[0152] In an embodiment of the component carrier of the UL signal constituted by at least one CORESET, the path loss RS of the at least one PUCCH is determined based on the RS of the TCI state applied to the CORESET having the lowest index among at least one CORESET, or the QCL assumption regarding the CORESET having the lowest index among at least one CORESET.

[0153] In one embodiment, the path loss RS of at least one PUCCH is determined based on the RS of the TCI state having the lowest index among at least one TCI state activated for the DL signal (e.g., PDSCH) on the component carrier. In this embodiment, the component carrier may not be configured by a CORESET.

[0154] In one embodiment, when the UL signal includes at least one SRS, the at least one power control parameter determined includes at least one of the target power of the at least one SRS, a scaling factor (e.g., which can be called alpha), a power control adjustment state, or the path loss RS.

[0155] In one embodiment, the target power of at least one SRS can be determined based on, for example, an SRS resource set configured by a higher layer parameter.

[0156] In one embodiment, the scaling factor of at least one SRS can also be determined based on an SRS resource set configured by a higher layer parameter. That is, at least one of the target power or the scaling factor of at least one SRS is determined based on an SRS resource set configured by at least one higher layer parameter.

[0157] In one embodiment, the power control adjustment state of at least one SRS is set to be the same as the power control adjustment state of PUSCH transmission in the component carrier.

[0158] In one embodiment, when the component carrier is composed of at least one CORESET, the path loss RS of at least one SRS is determined based on the RS of the TCI state applied to the CORESET having the lowest index among at least one CORESET, or the QCL assumption regarding the CORESET having the lowest index among at least one CORESET.

[0159] In one embodiment, the path loss RS of at least one SRS is determined based on the RS of the TCI state having the lowest index among at least one TCI state activated for the DL signal on the component carrier. In this embodiment, the component carrier may not be composed of CORESETs.

[0160] In one embodiment, when the UL signal includes at least one PUSCH, the at least one determined power control parameter includes at least one of the target power of at least one PUSCH, a scaling factor, a closed-loop index, or the path loss RS.

[0161] In one embodiment, the target power of at least one PUSCH is determined by an entry having one of a specific index (e.g., 0), the highest index, or the lowest index within a target power set or an SRS resource indicator (SRI) PUSCH power control set.

[0162] In one embodiment, the scaling factor of at least one PUSCH is determined by an entry having one of a specific index, the highest index, or the lowest index within a scaling factor set or an SRI-PUSCH power control set configured by, for example, a higher layer parameter.

[0163] In one embodiment, the closed-loop index of at least one PUSCH is one of a specific index, the highest index, or the lowest index within the range of the closed-loop index.

[0164] In one embodiment, the path loss RS of at least one PUSCH is determined according to the path loss RS associated with the SRS associated with at least one PUSCH. It should be noted that in this embodiment, at least one PUSCH may not be composed of the path loss RS. In one embodiment, the SRS associated with at least one PUSCH is the SRS used for codebook transmission or the SRS used for non-codebook transmission. In one embodiment, when there are two or more SRS resources configured within the SRS resource set, the association between the SRS and at least one PUSCH is indicated by the SRS resource indicator (SRI) field in the DCI.

[0165] In one embodiment, when the path loss RS (i.e., one of at least one power control parameter) is configured for the UL signal by, for example, a higher layer parameter, the path loss RS of the UL signal may be overwritten by the result of the determination of the path loss RS of the UL signal according to the foregoing embodiments.

[0166] In one embodiment, when the TCI state has a plurality of RS indexes (for example, two RS indexes) or a plurality of QCL types (for example, two QCL types), the RS index associated with the QCL type (for example, QCL type D) configured for the spatial parameter is used to determine at least one power control parameter of the UL signal. In one embodiment, at least one power control parameter of the UL signal may be determined without being configured by a higher layer parameter in at least one of the following embodiments (1) to (5).

[0167]

[0168] ​Embodiment (1): The UL signal is not configured in a spatial relationship. Embodiment (2): The UL signal is not configured with at least one power control parameter.

[0169] In an example of Embodiment (2), at least one of SRS, PUSCH, and PUCCH in the UL signal may not be configured with path loss RS.

[0170] In an example of Embodiment (2), the UL signal can include at least one PUSCH, and the path loss RS of SRS associated with at least one PUSCH is not configured for the wireless terminal.

[0171] In an example of Embodiment (2), the UL signal can include at least one PUSCH, and SRS for non-codebook transmission or codebook transmission is not configured with path loss RS.

[0172] Embodiment (3): The wireless terminal receives a medium access control MAC control element CE activation command for activating the TCI state, or receives a configuration command regarding the TCI state.

[0173] Embodiment (4): The wireless terminal receives a MAC CE activation command for activating or updating at least one power control parameter, or receives a configuration command regarding at least one power control parameter.

[0174] In Embodiment (4), at least one power control parameter includes at least one of a target power, a scaling factor, or a closed-loop index.

[0175] Embodiment (5): The wireless terminal receives signaling configured to determine at least one power control parameter regarding the UL signal.

[0176] In embodiment (5), the signaling may be an upper layer parameter. Further, the upper layer parameter may be one of "enableDefaultBeamForUL" or "enable DefaultPowerControlForUL".

[0177] In one embodiment, if a wireless terminal supports only one active DL or UL beam at a given time, the path loss RS of the at least one PUSCH and / or at least one SRS in the UL signal may be determined based on the above embodiment when the wireless terminal receives a MAC CE configured to update the path loss RS of the at least one PUSCH and / or at least one SRS.

[0178] In one embodiment, when the wireless terminal receives a MAC CE for updating the path loss RS of at least one PUCCH in the UL signal, the wireless terminal determines the path loss RS of at least one PUCCH according to the above embodiment. The spatial relationship of at least one PUCCH may not be configured.

[0179] In a carrier aggregation (CA) embodiment, time units of UL signals on multiple component carriers may collide with each other. For example, a time unit of a UL signal U1 on a component carrier CC_A may collide with a time unit of another UL signal U2 on another component carrier CC_B. Under such conditions, at least one of the power control parameters or spatial information of one of the UL signals U1 and U2 may require a change to the other one of the UL signals U1 and U2.

[0180] In one embodiment, when a time unit of UL signal U1 on component carrier CC_A collides with a time unit of UL signal U2 on component carrier CC_B, one of UL signals U1 and U2 is prioritized for UL transmission.

[0181] In one embodiment, when the time unit of the UL signal U1 on the component carrier CC_A collides with the time unit of the UL signal U2 on the component carrier CC_B, the UL transmission of one of the UL signals U1 and U2 is withheld.

[0182] In one embodiment, a UL signal has a higher priority when corresponding to a component carrier having a smaller (e.g., lower) index. For example, when the index of the component carrier CC_A is smaller than the index of the component carrier CC_B, the UL signal U1 is prioritized for UL transmission (e.g., has a higher priority than the UL signal U2), and vice versa.

[0183] In one embodiment, a UL signal has a higher priority when corresponding to a component carrier having a larger (e.g., higher) index. For example, when the index of the component carrier CC_A is larger than the index of the component carrier CC_B, the UL signal U1 is prioritized for UL transmission (e.g., has a higher priority than the UL signal U2), and vice versa.

[0184] In one embodiment, a component carrier composed of at least one CORESET has a higher priority than a component carrier not composed of a CORESET. For example, the component carrier CC_A (i.e., the UL signal U1) has a higher priority when the component carrier CC_A is composed of at least one CORESET and the component carrier CC_B is not composed of a CORESET.

[0185] In one embodiment, a component carrier not configured by a CORESET has a higher priority than a component carrier configured by at least one CORESET. For example, component carrier CC_A (i.e., UL signal U1) has a higher priority when component carrier CC_B is configured by at least one CORESET and component carrier CC_A is not configured by a CORESET.

[0186] In one embodiment, at least one power control parameter of a UL signal having a lower priority is determined based on at least one power control parameter of a UL signal having a higher priority. For example, when the time unit of UL signal U1 on component carrier CC_A collides with the time unit of UL signal U2 on component carrier CC_B, and UL signal U2 has a higher priority because the index of component carrier CC_B is smaller than the index of component carrier CC_A, at least one power control parameter of UL signal U1 is determined based on at least one power control parameter of UL signal U2 (e.g., set as at least one power control parameter of UL signal U2).

[0187] In one embodiment, the spatial relationship of a UL signal having a lower priority is determined based on the spatial relationship of a UL signal having a higher priority. For example, when the time unit of UL signal U1 on component carrier CC_A collides with the time unit of UL signal U2 on component carrier CC_B, and UL signal U2 has a higher priority because the index of component carrier CC_B is larger than the index of component carrier CC_A, the spatial relationship of UL signal U1 is determined based on the spatial relationship of UL signal U2 (e.g., set as the spatial relationship of UL signal U2).

[0188] In one embodiment, a UL signal with a higher priority is prioritized for UL transmission. For example, if the time unit of the UL signal U1 on the component carrier CC_A collides with the time unit of the UL signal U2 on the component carrier CC_B, and the component carrier CC_A is composed of at least one CORESET while the component carrier CC_B is not composed of a CORESET, if the UL signal U1 has a higher priority, the UL signal U1 is prioritized for UL transmission.

[0189] In one embodiment, the UL transmission of a UL signal with a lower priority is restricted. For example, if the time unit of the UL signal U1 on the component carrier CC_A collides with the time unit of the UL signal U2 on the component carrier CC_B, and the component carrier CC_A is not composed of a CORESET while the component carrier CC_B is composed of at least one CORESET, if the UL signal U2 has a higher priority, the UL transmission of the UL signal U2 is restricted.

[0190] It should be noted that in the foregoing embodiments, the component carriers (e.g., component carriers CC_A and CC_B) in which the collided transmissions are configured are in the same component carrier group and / or the same bandwidth part.

[0191] FIG. 6 shows a schematic diagram of a component carrier according to an embodiment of the present disclosure. In FIG. 6, the component carrier with index 1 (i.e., CC#1) is composed of a CORESET, and the component carrier with index 2 (CC#2) is not composed of a CORESET. Regarding the component carrier CC#2, the first entry having the lowest index of the activated TCI state is the TCI state TCI_1. In this embodiment, the UL signal has a higher priority when corresponding to a component carrier with a smaller index.

[0192] As shown in FIG. 6, two SRSs (i.e., UL signals) SRS_C and SRS_D are scheduled in slot n+1. Since component carrier CC#1 has a smaller index, the spatial relationship of SRS SRS_D is determined based on the spatial relationship of SRS SRS_C (i.e., TCI state TCI_2). Further, the path loss RS of SRS SRS_D is determined based on the path loss RS of SRS SRS_C (e.g., QCL type D RS of CORSET#1).

[0193] In addition, two PUSCHs (i.e., UL signals) PUSCH_C and PUSCH_D collide with each other in slot n+2. Note that the latest transmission of the SRS resource before the PUSCH carrying the SRI is used to determine the transmission of the PUSCH. Therefore, SRS SRS_C and SRS_D are used to determine the transmission (e.g., beam) of PUSCH PUSCH_C and PUSCH_D, respectively. SRS Since the spatial relationship of SRS SRS_D is determined based on the spatial relationship of SRS SRS_C , PUSCH PUSCH_C and PUSCH_D have the same spatial relationship, e.g., UL beam, and thus both PUSCH PUSCH_C and PUSCH_D can be transmitted simultaneously.

[0194] In one embodiment, at least one of the power control parameters or spatial relationships of the UL signals is determined based on at least one of the transmission parameters of the DL signals on the same component carrier.

[0195] In one embodiment, the DL signal is determined according to the slot that overlaps with the UL signal. For example, the slot that overlaps with the UL signal is the latest slot before the slot that overlaps with the UL signal. Referring to FIG. 4, SRS SRS_A overlaps with slot n+1, which is also the latest slot regarding the DL transmission before the slot that overlaps with SRS SRS_A. Therefore, at least one of at least one power control parameter or spatial relationship of SRS SRS_A is determined based on CORESET#1 (i.e., the DL signal) in slot n+1.

[0196] In one embodiment, the slot that overlaps with the UL signal can have a plurality of DL signals (e.g., a plurality of CORESETs). In this embodiment, the DL signal used to determine at least one of at least one power control parameter or spatial relationship of the UL signal is the DL signal having the lowest index (e.g., 0) among the DL signals within the slot that overlaps with the UL signal.

[0197] In one embodiment, the UL transmission and the DL transmission can have different subcarrier intervals. Under such conditions, the UL signal (e.g., the slot of the UL signal) can overlap with a plurality of slots of the DL signal.

[0198] In one embodiment, the DL signal used to determine at least one of at least one power control parameter or spatial relationship of the UL signal is selected from the first slot or the latest slot among the slots that overlap with the UL signal.

[0199] In one embodiment, the DL signal used to determine at least one of at least one power control parameter or spatial relationship of the UL signal is selected from the first slot or the last slot among the slots that overlap with the UL signal (e.g., the slot of the UL signal).

[0200] FIG. 7 shows a schematic diagram of UL and DL transmissions according to an embodiment of the present invention. In FIG. 7, the subcarrier spacing of DL transmission is twice that of UL transmission, and one UL slot overlaps with two DL slots. For example, the subcarrier spacing of DL transmission may be 120 kHz, and the subcarrier spacing of UL transmission may be 60 kHz. As shown in FIG. 7, the UL transmission slot n that overlaps with SRS SRS_E overlaps with DL transmission slots 2n and 2n + 1. In one embodiment, at least one of at least one power control parameter or spatial relationship of SRS SRS_E is determined based on CORESET#0 and / or TCI state TCI_1 of slot 2n, which is the first slot that overlaps with the slot of SRS SRS_E. In one embodiment, at least one of at least one power control parameter or spatial relationship of SRS SRS_E is determined based on CORESET#1 and / or TCI state TCI_2 of slot 2n + 1, which is the last slot that overlaps with the slot of SRS SRS_E. Note that slot 2n + 1 is also the latest slot before slot n of SRS SRS_E.

[0201]

Number

[0202]

Number

[0203] In one embodiment, the aforementioned overlap may mean complete overlap and / or partial overlap.

[0204] Although various embodiments of the present disclosure have been described above, it should be understood that they are not limiting and are presented merely as examples. Similarly, although the various figures may show an exemplary architecture or configuration, they are presented to enable those skilled in the art to understand the exemplary features and functions of the present disclosure. However, those skilled in the art will understand that the present disclosure is not limited to the illustrated exemplary architecture or configuration and can be implemented using various alternative architectures and configurations. Furthermore, as will be understood by those skilled in the art, one or more features of one embodiment can 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.

[0205] Also, any reference in this specification to elements using designations such as "first", "second", etc. is generally not intended to limit the quantity or order of those elements. Rather, these designations can be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be used, nor does it mean that the first element must precede the second element in any way.

[0206] Furthermore, those skilled in the art will understand that information and signals can be represented using any of a variety of different technologies and techniques. For example, the data, instructions, commands, information, signals, bits, and symbols that may be referred to in the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.

[0207] Furthermore, those skilled in the art will understand that any of the various exemplary logical blocks, units, processors, means, circuits, methods, and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, various forms of program or design code incorporating instructions (which can be referred to herein, for convenience, as "software" or "software units"), or any combination of these technologies.

[0208] To clearly illustrate this interchangeability of hardware, firmware, and software, various exemplary components, blocks, units, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, software, or a combination of these technologies depends on the particular application and design constraints imposed on the overall system. Those skilled in the art can implement the described functionality in various ways suitable for each particular application, but such implementation decisions do not depart from the scope of the present disclosure. According to various embodiments, a processor, device, component, circuit, structure, machine, unit, etc. can be configured to perform one or more of the functions described herein. The terms "configured to" or "configured in accordance with" as used herein with respect to a specified operation or function refer to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed, and / or configured to perform the specified operation or function.

[0209] Furthermore, those skilled in the art will understand that the various exemplary logical blocks, units, devices, components, and circuits described herein can be implemented within or executed by an integrated circuit (IC) including 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, and that the logical blocks, units, and circuits can further include antennas and / or transceivers for communicating with various components within a network or device. The general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, or state machine. Also, the processor can be implemented as a combination of computing devices, such as, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors cooperating with a DSP core, or any other suitable configuration for performing the functions described herein. When implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Accordingly, the steps of the methods or algorithms disclosed herein can be implemented as software stored on a computer-readable medium.

[0210] A computer-readable medium includes both computer storage media and communication media including any media that can carry a computer program or code from one place to another. The storage media can be any available media accessible to a computer. 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 the desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0211] As used herein, the term "unit" refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Further, for purposes of explanation, various units are described as separate units, but as will be apparent to one of ordinary skill in the art, two or more units may be combined to form a single unit that performs the associated functions according to embodiments of the present disclosure.

[0212] Furthermore, in embodiments of the present disclosure, memory or other storage devices, as well as communication components can be used. For clarity purposes, it will be appreciated that the above description has been presented with respect to different functional units and processors of embodiments of the present disclosure. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements, or domains may be used without departing from the present disclosure. For example, functions illustrated as being performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Accordingly, references to specific functional units are not intended to denote a strict logical or physical structure or organization, but rather only to refer to suitable means for providing the described functionality.

[0213] Various changes to the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of the disclosure. Accordingly, the disclosure is not intended to be limited to the embodiments shown herein, but rather should be accorded the widest scope consistent with the novel features and principles disclosed herein and not inconsistent with the following claims.

Claims

1. A wireless communication method for use in a wireless terminal, comprising: receiving higher layer parameters configured to determine a power control parameter corresponding to a first path loss reference signal (RS) of at least one physical uplink shared channel (PUSCH) in a first component carrier; determining the first path loss RS of the at least one PUSCH in the first component carrier according to a second path loss RS associated with a Sounding Reference Signal (SRS), the SRS being associated with the at least one PUSCH; and transmitting the at least one PUSCH on the first component carrier based on the determined first path loss RS of the at least one PUSCH to a radio network node. wherein the at least one PUSCH is not configured with the first path loss RS; The first component carrier is not configured in a control resource set (CORESET); wherein the second path loss RS associated with the SRS is determined based on an RS of a transmission configuration indicator (TCI) state having a lowest index among at least one TCI state activated for a physical downlink shared channel in the first component carrier.

2. 1. A wireless communication method for use in a radio network node, comprising: transmitting, to a wireless terminal, higher layer parameters configured to determine a power control parameter corresponding to a first path loss reference signal (RS) of at least one physical uplink shared channel (PUSCH) in a first component carrier; receiving, from the wireless terminal, the at least one PUSCH in the first component carrier based on the first path loss RS; Including, The first path loss RS is determined according to a second path loss RS associated with a Sounding Reference Signal (SRS) associated with the at least one PUSCH; The at least one PUSCH is not configured with the first path loss RS; The first component carrier is not configured in a control resource set (CORESET); wherein the second path loss RS associated with the SRS is determined based on an RS of a transmission configuration indicator (TCI) state having a lowest index among at least one TCI state activated for a physical downlink shared channel in the first component carrier.

3. A wireless terminal, At least one processor; and a memory configured to store at least one program. The at least one program, when executed by the at least one processor, causes the at least one processor to: receiving higher layer parameters configured to determine a power control parameter corresponding to a first path loss reference signal (RS) of at least one physical uplink shared channel (PUSCH) in a first component carrier; determining a first path loss RS of the at least one PUSCH in the first component carrier according to a second path loss RS associated with a Sounding Reference Signal (SRS) associated with the at least one PUSCH; transmitting the at least one PUSCH in the first component carrier to a radio network node based on the determined first path loss RS of the at least one PUSCH; The at least one PUSCH is not configured with the first path loss RS; The first component carrier is not configured in a control resource set (CORESET); The wireless terminal, wherein the second path loss RS associated with the SRS is determined based on an RS of a transmission configuration indicator (TCI) state having a lowest index among at least one TCI state activated for a physical downlink shared channel in the first component carrier.

4. 1. A radio network node, comprising: At least one processor; and a memory configured to store at least one program. The at least one program, when executed by the at least one processor, causes the at least one processor to: transmitting, to a wireless terminal, higher layer parameters configured to determine a power control parameter corresponding to a first path loss reference signal (RS) of at least one physical uplink shared channel (PUSCH) in a first component carrier; receiving, from the wireless terminal, the at least one PUSCH in the first component carrier based on the first path loss RS; The first path loss RS is determined according to a second path loss RS associated with a Sounding Reference Signal (SRS) associated with the at least one PUSCH; The at least one PUSCH is not configured with the first path loss RS; The first component carrier is not configured in a control resource set (CORESET); A radio network node, wherein the second path loss RS associated with the SRS is determined based on an RS of a transmission configuration indicator (TCI) state having a lowest index among at least one TCI state activated for a physical downlink shared channel in the first component carrier.

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