Method and apparatus for multiple transmit and receive point operation

Abstract

The present invention provides a method and apparatus for multiple transmit and receive point (mTRP) operation. A method performed by a user equipment (UE) includes applying a first transmission configuration indication (TCI) state and a first uplink (UL) power control configuration associated with a first TRP to perform a first UL transmission toward the first TRP; and applying a second TCI state and a second UL power control configuration associated with a second TRP to perform a second UL transmission towards the second TRP.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communications, and more particularly to methods and apparatus for multiple transmit and receive point (mTRP) operations. Background Art

[0002] With the substantial growth in the number of connected devices and the rapid increase in user / network traffic, various efforts have been made to improve different aspects of wireless communications in next-generation wireless communication systems, such as fifth-generation (5G) New Radio (NR), for example by improving data rate, latency, reliability, and mobility.

[0003] The 5G NR system is designed to provide flexibility and configurability to optimize network services and types, thus accommodating various use cases such as enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low latency communications (URLLC).

[0004] However, as the demand for radio access continues to increase, there is a need to further improve wireless communications in next generation wireless communication systems. Summary of the invention

[0005] The present disclosure relates to methods and apparatus for multiple transmit and receive point (mTRP) operations.

[0006] According to a first aspect of the present disclosure, there is provided a method for a multi-transmission and reception point (mTRP) operation performed by a user equipment (UE) to communicate with a plurality of transmission and reception points (TRPs), the plurality of TRPs including a first TRP and a second TRP. The method comprises: applying a first transmission configuration indication (TCI) state and a first uplink (UL) power control configuration associated with the first TRP to perform a first UL transmission toward the first TRP; and applying a second TCI state and a second UL power control configuration associated with the second TRP to perform a second UL transmission toward the second TRP.

[0007] In some specific implementations of the first aspect of the present disclosure, the method also includes: receiving a radio resource control (RRC) message from a first TRP, the RRC message including a UL power control configuration set associated with a second TRP, the UL power control configuration set including a second UL power control configuration; and receiving a medium access control (MAC) control element (CE) from one of the first TRP and the second TRP, the MAC CE instructing the UE to apply the second UL power control configuration in the UL power control configuration set to perform a second UL transmission.

[0008] In some specific implementations of the first aspect of the present disclosure, the method further includes indicating information about the MAC CE to a lower layer of a MAC layer of the UE.

[0009] In some specific implementations of the first aspect of the present disclosure, the MAC CE includes at least one of the following: a service cell identifier (ID) of a service cell associated with a second TRP, a power control configuration ID of a second UL power control configuration, or a TCI state ID of a second TCI state.

[0010] In some specific implementations of the first aspect of the present disclosure, the MAC CE is received from the second TRP.

[0011] In some specific implementations of the first aspect of the present disclosure, the method also includes: receiving a first unified TCI state type indication of a type of a first TCI state; and receiving a second unified TCI state type indication of a type of a second TCI state, wherein each of the type of the first TCI state and the type of the second TCI state is one of a UL TCI state and a joint TCI state.

[0012] In some specific implementations of the first aspect of the present disclosure, the method also includes: determining a first UL transmit power for a first UL transmission based on a first UL power control configuration; determining a second UL transmit power for a second UL transmission based on a second UL power control configuration; using the first UL transmit power to send a first group of UL resources toward a first TRP; and using the second UL transmit power to send a second group of UL resources toward a second TRP.

[0013] In some specific implementations of the first aspect of the present disclosure, a first set of UL resources includes a first physical uplink control channel (PUCCH), a first physical uplink shared channel (PUSCH), and a first sounding reference signal (SRS), and a second set of UL resources includes a second PUCCH, a second PUSCH, and a second SRS.

[0014] In some specific implementations of the first aspect of the present disclosure, the first TRP is associated with a source service cell, and the second TRP is associated with a target service cell.

[0015] In some specific implementations of the first aspect of the present disclosure, the first TRP and the second TRP are associated with the same service cell.

[0016] In some specific implementations of the first aspect of the present disclosure, the first UL power control configuration is associated with at least one of the following: a first TCI state, a first TCI state identifier (ID) of the first TCI state, a first panel ID associated with a first TRP, a first cell ID associated with the first TRP, a first search space ID associated with the first TRP, a first control resource set (CORESET) ID associated with the first TRP, a first CORESET pool index associated with the first TRP, or a first TRP-specific ID associated with the first TRP. The second UL power control configuration is associated with at least one of the following: a second TCI state, a second TCI state ID of the second TCI state, a second panel ID associated with a second TRP, a second cell ID associated with a second TRP, a second search space ID associated with a second TRP, a second CORESET ID associated with a second TRP, a second CORESET pool index associated with a second TRP, or a second TRP-specific ID associated with the second TRP.

[0017] In some specific implementations of the first aspect of the present disclosure, the first UL power control configuration includes at least one of the following: a first UL power control ID associated with a first TRP, a first P0alpha set configuration for a first physical uplink control channel (PUCCH) associated with the first TRP, a second P0 alpha set configuration for a first physical uplink shared channel (PUSCH) associated with the first TRP, or a third P0 alpha set configuration for a first sounding reference signal (SRS) associated with the first TRP. The second UL power control configuration includes at least one of the following: a second UL power control ID associated with a second TRP, a fourth P0 alpha set configuration for a second PUCCH associated with the second TRP, a fifth P0 alpha set configuration for a second PUSCH associated with the second TRP, or a sixth P0 alpha set configuration for a second SRS associated with the second TRP.

[0018] In some specific implementations of the first aspect of the present disclosure, the first P0 alpha set configuration is the same as the fourth P0 alpha set configuration, the second P0 alpha set configuration is the same as the fifth P0 alpha set configuration, and the third P0 alpha set configuration is the same as the sixth P0 alpha set configuration.

[0019] According to a second aspect of the present disclosure, there is provided a user equipment (UE) for performing a multi-transmission and reception point (mTRP) operation to communicate with a plurality of transmission and reception points (TRPs), the plurality of TRPs including a first TRP and a second TRP. The UE includes at least one processor and at least one memory coupled to the at least one processor. The at least one memory stores one or more computer executable instructions, which when executed by the at least one processor cause the UE to apply a first transmission configuration indication (TCI) state and a first uplink (UL) power control configuration associated with the first TRP to perform a first UL transmission toward the first TRP; and apply a second TCI state and a second UL power control configuration associated with the second TRP to perform a second UL transmission toward the second TRP.

[0020] In some specific implementations of the second aspect of the present disclosure, the one or more computer-executable instructions, when executed by the at least one processor, also cause the UE to receive a radio resource control (RRC) message from the first TRP, the RRC message including a UL power control configuration set associated with the second TRP, the UL power control configuration set including a second UL power control configuration; and receive a medium access control (MAC) control element (CE) from one of the first TRP and the second TRP, the MAC CE instructing the UE to apply the second UL power control configuration in the UL power control configuration set to perform a second UL transmission.

[0021] In some specific implementations of the second aspect of the present disclosure, the one or more computer executable instructions, when executed by the at least one processor, further cause the UE to indicate information about the MAC CE to a lower layer of the MAC layer of the UE.

[0022] In some specific implementations of the second aspect of the present disclosure, the MAC CE includes at least one of the following: a service cell identifier (ID) of a service cell associated with a second TRP, a power control configuration ID of a second UL power control configuration, or a TCI state ID of a second TCI state.

[0023] In some specific implementations of the second aspect of the present disclosure, the MAC CE is received from the second TRP.

[0024] In some specific implementations of the second aspect of the present disclosure, the one or more computer-executable instructions, when executed by the at least one processor, also cause the UE to receive a first unified TCI state type indication of a type of a first TCI state; and receive a second unified TCI state type indication of a type of a second TCI state, wherein each of the type of the first TCI state and the type of the second TCI state is one of a UL TCI state and a joint TCI state.

[0025] In some specific implementations of the second aspect of the present disclosure, the one or more computer-executable instructions, when executed by the at least one processor, also cause the UE to determine a first UL transmit power for a first UL transmission according to a first UL power control configuration; determine a second UL transmit power for a second UL transmission according to a second UL power control configuration; use the first UL transmit power to send a first group of UL resources toward a first TRP; and use the second UL transmit power to send a second group of UL resources toward a second TRP.

[0026] In some specific implementations of the second aspect of the present disclosure, the first group of UL resources includes a first physical uplink control channel (PUCCH), a first physical uplink shared channel (PUSCH) and a first sounding reference signal (SRS), and the second group of UL resources includes a second PUCCH, a second PUSCH and a second SRS.

[0027] In some specific implementations of the second aspect of the present disclosure, the first TRP is associated with a source service cell, and the second TRP is associated with a target service cell.

[0028] In some specific implementations of the second aspect of the present disclosure, the first TRP and the second TRP are associated with the same service cell.

[0029] In some specific implementations of the second aspect of the present disclosure, the first UL power control configuration is associated with at least one of the following: a first TCI state, a first TCI state identifier (ID) of the first TCI state, a first panel ID associated with the first TRP, a first cell ID associated with the first TRP, a first search space ID associated with the first TRP, a first control resource set (CORESET) ID associated with the first TRP, a first CORESET pool index associated with the first TRP, or a first TRP-specific ID associated with the first TRP. The second UL power control configuration is associated with at least one of the following: a second TCI state, a second TCI state ID of the second TCI state, a second panel ID associated with the second TRP, a second cell ID associated with the second TRP, a second search space ID associated with the second TRP, a second CORESET ID associated with the second TRP, a second CORESET pool index associated with the second TRP, or a second TRP-specific ID associated with the second TRP.

[0030] In some specific implementations of the second aspect of the present disclosure, the first UL power control configuration includes at least one of the following: a first UL power control ID associated with a first TRP, a first P0alpha set configuration for a first physical uplink control channel (PUCCH) associated with the first TRP, a second P0 alpha set configuration for a first physical uplink shared channel (PUSCH) associated with the first TRP, or a third P0 alpha set configuration for a first sounding reference signal (SRS) associated with the first TRP. The second UL power control configuration includes at least one of the following: a second UL power control ID associated with a second TRP, a fourth P0 alpha set configuration for a second PUCCH associated with the second TRP, a fifth P0 alpha set configuration for a second PUSCH associated with the second TRP, or a sixth P0 alpha set configuration for a second SRS associated with the second TRP.

[0031] In some specific implementations of the second aspect of the present disclosure, the first P0 alpha set configuration is the same as the fourth P0 alpha set configuration, the second P0 alpha set configuration is the same as the fifth P0 alpha set configuration, and the third P0 alpha set configuration is the same as the sixth P0 alpha set configuration.

[0032] According to a third aspect of the present disclosure, a base station (BS) is provided for performing a multi-transmission and reception point (mTRP) operation to communicate with a user equipment (UE) via multiple TRPs including a first transmission and reception point (TRP) and a second TRP. The BS includes at least one processor and at least one memory coupled to the at least one processor. The at least one memory stores one or more computer executable instructions, which, when executed by the at least one processor, cause the BS to configure the UE with a first transmission configuration indication (TCI) state and a first uplink (UL) power control configuration associated with the first TRP, so that the UE can perform a first UL transmission toward the first TRP based on the first TCI state and the first UL power control configuration; and configure the UE with a second TCI state and a second UL power control configuration associated with the second TRP, so that the UE can perform a second UL transmission toward the second TRP based on the second TCI state and the second UL power control configuration.

[0033] In some specific implementations of the third aspect of the present disclosure, the one or more computer-executable instructions, when executed by the at least one processor, also cause the BS to send a radio resource control (RRC) message including a UL power control configuration set associated with the second TRP to the UE via the first TRP, the UL power control configuration set including the second UL power control configuration; and send a medium access control (MAC) control element (CE) to the UE via one of the first TRP and the second TRP, the MAC CE instructing the UE to apply the second UL power control configuration in the UL power control configuration set to perform the second UL transmission.

[0034] In some specific implementations of the third aspect of the present disclosure, the MAC CE includes at least one of the following: a service cell identifier (ID) of a service cell associated with a second TRP, a power control configuration ID of a second UL power control configuration, or a TCI state ID of a second TCI state.

[0035] In some specific implementations of the third aspect of the present disclosure, the one or more computer-executable instructions, when executed by the at least one processor, also cause the BS to send a first unified TCI state type indication of a type of a first TCI state to the UE; and send a second unified TCI state type indication of a type of a second TCI state to the UE, wherein each of the type of the first TCI state and the type of the second TCI state is one of a UL TCI state and a joint TCI state.

[0036] In some specific implementations of the third aspect of the present disclosure, the first TRP is associated with a source service cell, and the second TRP is associated with a target service cell.

[0037] In some specific implementations of the third aspect of the present disclosure, the first TRP and the second TRP are associated with the same service cell.

[0038] In some specific implementations of the third aspect of the present disclosure, the first UL power control configuration is associated with at least one of the following: a first TCI state, a first TCI state identifier (ID) of the first TCI state, a first panel ID associated with a first TRP, a first cell ID associated with the first TRP, a first search space ID associated with the first TRP, a first control resource set (CORESET) ID associated with the first TRP, a first CORESET pool index associated with the first TRP, or a first TRP-specific ID associated with the first TRP. The second UL power control configuration is associated with at least one of the following: a second TCI state, a second TCI state ID of the second TCI state, a second panel ID associated with a second TRP, a second cell ID associated with a second TRP, a second search space ID associated with a second TRP, a second CORESET ID associated with a second TRP, a second CORESET pool index associated with a second TRP, or a second TRP-specific ID associated with a second TRP.

[0039] In some specific implementations of the third aspect of the present disclosure, the first UL power control configuration includes at least one of the following: a first UL power control ID associated with a first TRP, a first P0alpha set configuration for a first physical uplink control channel (PUCCH) associated with the first TRP, a second P0 alpha set configuration for a first physical uplink shared channel (PUSCH) associated with the first TRP, or a third P0 alpha set configuration for a first sounding reference signal (SRS) associated with the first TRP. The second UL power control configuration includes at least one of the following: a second UL power control ID associated with a second TRP, a fourth P0 alpha set configuration for a second PUCCH associated with the second TRP, a fifth P0 alpha set configuration for a second PUSCH associated with the second TRP, or a sixth P0 alpha set configuration for a second SRS associated with the second TRP.

[0040] In some specific implementations of the third aspect of the present disclosure, the first P0 alpha set configuration is the same as the fourth P0 alpha set configuration, the second P0 alpha set configuration is the same as the fifth P0 alpha set configuration, and the third P0 alpha set configuration is the same as the sixth P0 alpha set configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The various aspects of the present example disclosure can be best understood from the following detailed description when read in conjunction with the accompanying drawings. The various features are not drawn to scale. The sizes of the various features may be arbitrarily increased or decreased for clarity of discussion. Figure 1 is a flow chart of a method for mTRP operation according to an example implementation of the present disclosure. Figure 2 is a flow chart of a method for mTRP operation according to an example implementation of the present disclosure. Figure 3 is a flow chart of a method for mTRP operation according to an example implementation of the present disclosure. Figure 4 is a flow chart of a method for mTRP operation according to an exemplary embodiment of the present disclosure. Figure 5 is a schematic diagram illustrating a scenario within a node according to an example implementation of the present disclosure. Figure 6 is a schematic diagram illustrating a situation between distributed units (DUs) within a central unit (CU) according to an example implementation of the present disclosure. Figure 7 is a schematic diagram illustrating a scenario within a node according to an example implementation of the present disclosure. Figure 8 is a block diagram illustrating a node for wireless communication according to an example implementation of the present disclosure. DETAILED DESCRIPTION

[0042] The following description contains specific information about example implementations in the present disclosure. The drawings in the present disclosure and the detailed descriptions attached thereto are only for example implementations. However, the present disclosure is not limited to these example implementations. Other variations and implementations of the present disclosure will occur to those skilled in the art. Unless otherwise indicated, identical or corresponding elements in the drawings may be represented by identical or corresponding reference numerals. In addition, the drawings and illustrations in the present disclosure are generally not to scale and are not intended to correspond to actual relative sizes.

[0043] For the purpose of consistency and ease of understanding, similar features may be identified by the same numerals in the example drawings (although not shown in some examples). However, features in different implementations may differ in other aspects, and therefore should not be narrowly limited to what is shown in the drawings.

[0044] The description uses the phrase "in some specific implementations", which can each refer to one or more of the same or different specific implementations. The term "coupled" is defined as connected, whether directly or indirectly through intermediate components, and is not necessarily limited to physical connections. When used, the term "comprising" means "including but not necessarily limited to"; it specifically represents open inclusion or membership in the described combinations, groups, series, and equivalents. The expressions "at least one of A, B, and C", "at least one of the following: A, B, and C", "at least one of A, B, or C", and "at least one of the following: A, B, or C" mean "only A, or only B, or only C, or any combination of A, B, and C".

[0045] In addition, for the purpose of explanation rather than limitation, specific details such as functional entities, technologies, protocols, standards, etc. are set forth to provide an understanding of the described technology. In other examples, detailed descriptions of well-known methods, technologies, systems, architectures, etc. are omitted to avoid obscuring the description with unnecessary details.

[0046] Those skilled in the art will immediately recognize that any network function or algorithm described in this disclosure can be implemented by hardware, software, or a combination of software and hardware. The functions described may correspond to modules, which may be software, hardware, firmware, or any combination thereof. Software implementations may include computer executable instructions stored on computer-readable media such as memory or other types of storage devices. For example, one or more microprocessors or general-purpose computers with communication processing capabilities may be programmed with corresponding executable instructions and perform the described network functions or algorithms. A microprocessor or general-purpose computer may be formed by an application-specific integrated circuit (ASIC), a programmable logic array, and / or using one or more digital signal processors (DSPs). Although some exemplary implementations described in this specification are software for installation and execution on computer hardware, alternative exemplary implementations implemented as firmware or hardware or a combination of hardware and software are also within the scope of this disclosure.

[0047] Computer readable media include, but are not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory, compact disk read-only memory (CD-ROM), cassettes, magnetic tape, disk storage, or any other equivalent medium capable of storing computer readable instructions.

[0048] A radio communication network architecture (e.g., a long term evolution (LTE) system, an advanced LTE (LTE-A) system, an advanced LTE Pro system, or a 5G new radio (NR) radio access network (RAN)) typically includes at least one base station (BS), at least one user equipment (UE), and one or more optional network elements that provide a connection toward the network. The UE communicates with the network (e.g., a core network (CN), an evolved packet core (EPC) network, an evolved universal terrestrial radio access network (E-UTRAN), a 5G core (5GC), or the Internet) through the RAN established by one or more BSs.

[0049] It should be noted that in the present application, UE may include but is not limited to a mobile station, a mobile terminal or device, a user communication radio terminal. For example, a UE may be a portable radio equipment, including but not limited to a mobile phone, a tablet computer, a wearable device, a sensor, a vehicle, or a personal digital assistant (PDA) with wireless communication capabilities. A UE is configured to receive and send signals over an air interface relative to one or more cells in a radio access network.

[0050] The BS may be configured to provide communication services according to at least one of the following radio access technologies (RATs): Worldwide Interoperability for Microwave Access (WiMAX), Global System for Mobile Communications (GSM, commonly referred to as 2G), GSM Enhanced Data Rates for GSM Evolution (EDGE), Radio Access Network (GERAN), General Packet Radio Service (GPRS), Universal Mobile Telecommunications System (UMTS, commonly referred to as 3G) based on basic Wideband Code Division Multiple Access (W-CDMA), High Speed ​​Packet Access (HSPA), LTE, LTE-A, eLTE (Evolved LTE, e.g., LTE connected to 5GC), NR (commonly referred to as 5G) and / or LTE-A Pro. However, the scope of the present application should not be limited to the above protocols.

[0051] The BS may include, but is not limited to, a Node B (NB) as in UMTS, an evolved Node B (eNB) as in LTE or LTE-A, a Radio Network Controller (RNC) as in UMTS, a Base Station Controller (BSC) as in GSM / GERAN, an ng-eNB as in an Evolved Universal Terrestrial Radio Access (E-UTRA) BS in conjunction with 5GC, a Next Generation Node B (gNB) as in 5G-RAN, and any other device capable of controlling radio communications and managing radio resources within a cell. The BS may serve one or more UEs via a radio interface.

[0052] The BS is operable to provide radio coverage to a specific geographic area using multiple cells forming a radio access network. The BS supports the operation of cells. Each cell is operable to provide services to at least one UE within its radio coverage. More specifically, each cell (commonly referred to as a serving cell) provides services to serve one or more UEs within its radio coverage (e.g., each cell schedules downlink (DL) and optionally uplink (UL) resources to at least one UE within its radio coverage for DL ​​packet transmission and optionally UL packet transmission). The BS can communicate with one or more UEs in the radio communication system through the multiple cells. The cell may allocate side link (SL) resources for supporting proximity services (ProSe) or vehicle-to-everything (V2X) services. Each cell may have a coverage area that overlaps with other cells.

[0053] As discussed above, the frame structure of NR will support flexible configuration to accommodate various next-generation (e.g., 5G) communication requirements, such as enhanced mobile broadband (eMBB), massive machine type communication (mMTC), ultra-reliable and low latency communication (URLLC), while meeting high reliability, high data rate, and low latency requirements. The orthogonal frequency division multiplexing (OFDM) technology agreed upon in the Third Generation Partnership Project (3GPP) can be used as a baseline for the NR waveform. Scalable OFDM parameter sets, such as adaptive subcarrier spacing, channel bandwidth, and cyclic prefix (CP) can also be used. In addition, two decoding schemes are considered for NR: (1) low-density parity check (LDPC) codes and (2) polar codes. The coding scheme adaptation can be configured based on channel conditions and / or service applications.

[0054] In addition, it is also considered that in the transmission time interval TX of a single NR frame, at least DL transmission data, protection period and UL transmission data should be included, wherein the corresponding parts of DL transmission data, protection period and UL transmission data should also be configurable, for example, based on the network dynamics of NR. In addition, SL resources can also be provided in the NR frame to support ProSe services or V2X services.

[0055] In addition, the terms "system" and "network" in this article are used interchangeably. The term "and / or" in this article is only used to describe the association relationship of associated objects, and indicates that three relationships may exist. For example, A and / or B may indicate: A exists alone, A and B exist at the same time, or B exists alone. In addition, the character " / " here usually indicates that the previous and the next associated objects are in an "or" relationship. Multiple PLMNs can operate on unlicensed spectrum. Multiple PLMNs can share the same unlicensed carrier. PLMNs can be public or private. Public PLMNs can be (but not limited to) operators or virtual operators that provide radio services to public users. Public PLMNs can own licensed spectrum and also support radio access technologies on licensed spectrum. Private PLMNs can be (but not limited to) micro-operators, factories or enterprises that provide radio services to their private users (e.g., employees or machines). In some implementations, the public PLMN may support more deployment scenarios (e.g., carrier aggregation between licensed band NR (PCell) and NR-U (SCell), dual connectivity between licensed band LTE (PCell) and NR-U (PSCell), independent NR-U, NR cell with DL in unlicensed band and UL in licensed band, dual connectivity between licensed band NR (PCell) and NR-U (PSCell)). In some implementations, the private PLMN mainly supports (but is not limited to) independent unlicensed radio access technology (e.g., independent NR-U).

[0056] The terms, definitions and abbreviations given in this document are either imported from existing documents (European Telecommunications Standards Institute (ETSI), International Telecommunication Union (ITU) or elsewhere) or newly created by 3GPP experts when precise vocabulary is required.

[0057] Multiple Input Multiple Output (MIMO) is one of the key technologies for achieving high data rates and meeting the requirements of enhanced mobile broadband (eMBB) in 5G systems. In addition, MIMO technology is successful in commercial deployment. MIMO features are studied and specified for both frequency division duplex (FDD) or time division duplex (TDD) systems, the main part of which is used for DL ​​MIMO operation. In addition, it is important to enhance UL MIMO, while it will still be necessary to introduce necessary enhancements on DL MIMO that promote the use of large antenna arrays (not only for frequency range 1 (FR1) but also for frequency range 2 (FR2)) to meet the requirements for the evolution of NR deployment.

[0058] Multiple transmission and reception points (also referred to as multiple TRPs, mTRPs or multiple TRPs) are introduced to enhance large-scale MIMO. In addition, the mTRP feature can improve reliability, coverage and capability performance through flexible deployment scenarios. In mTRP operation, the BS can communicate with the UE through multiple TRPs. Each TRP may be associated with a specific sounding reference signal (SRS) resource set, spatial relationship information, one or more specific radio resource control (RRC) parameters (e.g., CORESETPoolIndex, TRP ID, panel ID) and / or a specific transmission configuration indication (TCI) state (e.g., DL TCI state, joint TCI state or UL TCI state). The TCI state may include parameters for configuring a quasi-co-location (QCL) relationship between one or two DL reference signals (RS) and a target RS set. For example, the target RS set may be a demodulation reference signal (DMRS) port of a physical downlink shared channel (PDSCH) or a DMRS port of a physical downlink control channel (PDCCH).

[0059] In multi-beam operation, especially targeting FR2, a unified TCI framework can be introduced to facilitate pipelined multi-beam operation and reduce signaling overhead. The unified TCI framework can be applied not only to single TRP situations, but also to multi-TRP situations. The mTRP operation for UL may include, but is not limited to, UE performing simultaneous multi-panel UL transmission. Three types of TCI states (e.g., DL TCI states, UL TCI states, and joint TCI states) are defined in the unified TCI framework. The DL TCI state may include parameters for configuring the QCL relationship between one or two DL RSs and a target RS set. For example, the target RS set may be a DMRS port of a PDSCH or a DMRS port of a PDCCH. The UL TCI state may include parameters for providing reference RSs (e.g., synchronization signal block (SSB) indexes, channel state information reference signals (CSI-RS) indexes, and / or SRS) parameters to determine UL transmission (TX) spatial filters for physical uplink shared channels (PUSCH) and physical uplink control channel (PUCCH) resources based on dynamic authorization and configuration authorization in component carriers (CCs) and SRSs. The joint TCI state may include not only parameters for configuring the QCL relationship between one or two DL RSs and the target RS, but also parameters for providing RS (e.g., SSB index, CSI-RS index and / or SRS) to determine the UL TX spatial filters for PUSCH and PUCCH resources based on dynamic grant and configured grant in CC and SRS.

[0060] With the advancement of MIMO technology, interest in inter-cell mobility and intra-cell mobility is growing, which can include aspects such as inter-cell beam management and intra-cell beam management. Exploring inter-cell / intra-cell mobility may be beneficial, especially in mTRP operation, as this may potentially lead to a reduction in latency and signaling overhead, and may facilitate higher data rates.

[0061] In addition, when the UE is performing inter-cell beam management or inter-cell mobility, it is basic but important for the UE to perform UL transmission (e.g., PUCCH transmission, PUSCH transmission, SRS transmission) to a serving cell (e.g., a source serving cell) and / or to an inter-cell (e.g., a target serving cell) of a serving cell. However, when the UE is configured with inter-cell beam management and / or when the UE is configured to perform inter-cell mobility and / or when the UE is in mTRP operation, utilizing UL power control based on a unified TCI architecture presents certain complexities. In the present disclosure, a mechanism for configuring UL power control is introduced, which adopts a unified TCI architecture. The mechanism can be advantageous in various scenarios, such as when the UE is participating in inter-cell / intra-cell beam management, inter-cell / intra-cell mobility or mTRP operation, etc. The mechanism has the potential to achieve signaling overhead reduction and energy efficiency, for example, by applying UL power control in a unified TCI framework. In addition, it can be used as a basic aspect of inter-cell and / or intra-cell beam management and mobility.

[0062] Figure 1 1 is a flowchart of a method 100 for mTRP operation specifically implemented according to an example of the present disclosure. In mTRP operation, a UE may communicate with multiple TRPs including at least a first TRP and a second TRP through different beams toward each TRP. For example, when mTRP operation is applied / performed, a serving cell (or BS) may schedule UEs from at least two TRPs. mTRP operation is proposed and designed to provide wider coverage, enhanced reliability, and improved data rates for transmission / reception of DL channels (e.g., PDSCH, PDCCH), DL RS (e.g., CSI-RS), UL channels (e.g., PUSCH, PUCCH), and UL RS (e.g., SRS).

[0063] In action 102, the UE may apply (e.g., select and / or use) a first TCI state and a first UL power control configuration associated with a first TRP to perform a first UL transmission toward the first TRP.

[0064] In action 104, the UE may apply a second TCI state and a second UL power control configuration associated with the second TRP to perform a second UL transmission toward the second TRP.

[0065] It should be noted that although actions 102 and 104 are illustrated as Figure 1 Although separate actions are shown as separate boxes in the example, these separate illustrated actions should not be construed as necessarily being performed in sequence. Figure 1 The order in which the actions are performed is not intended to be construed as a limitation, and any number of the disclosed blocks may be combined in any order to implement the method or an alternative method. For example, actions 102 and 104 may be performed concurrently or simultaneously by the UE. In addition, each of actions 102 and 104 may be performed independently of the other actions and may be omitted in some specific implementations of the present disclosure.

[0066] According to method 100, the UE may employ TRP-specific (or per-TRP) UL power control by applying a corresponding TCI state and power control configuration for each TRP. By using a corresponding TCI state and UL power control configuration for each TRP, the UE may effectively manage UL transmissions toward each TRP, thereby forming the basis for reliable and adaptive communications in scenarios involving mTRP operation.

[0067] In some implementations, the first UL power control configuration may be associated with at least one of the following: a first TCI state, a first TCI state ID of the first TCI state, a first group ID associated with the first TRP, a first panel ID associated with the first TRP, a first cell ID associated with the first TRP, a first search space ID associated with the first TRP, a first CORESET ID associated with the first TRP, a first CORESET pool index associated with the first TRP, or a first TRP-specific ID associated with the first TRP. The second UL power control configuration may be associated with at least one of the following: a second TCI state, a second TCI state ID of the second TCI state, a second panel ID associated with the second TRP, a second cell ID associated with the second TRP, a second search space ID associated with the second TRP, a second CORESET ID associated with the second TRP, a second CORESET pool index associated with the second TRP, or a second TRP-specific ID associated with the second TRP.

[0068] In order to establish the association between the different parameters, configurations, TRPs and / or cells described in the present disclosure, a variety of mechanisms may be utilized. For example, the UE may receive one or more information elements (IEs) from a network node (e.g., a BS). The IE may be used to explicitly or implicitly define the association by including and / or indicating the relevant parameters, configurations, TRPs and / or cells. In addition, the association may also be established by a shared identifier or index that is common in at least a portion of the parameters, configurations, TRPs and / or cells.

[0069] mTRP operation can be used for inter-cell situations (e.g., inter-cell mobility, inter-cell beam management) or single-cell (or intra-cell) situations (e.g., intra-cell mobility, intra-cell beam management). For example, in the inter-cell situation, the first TRP can be associated with the source serving cell, and the second TRP can be associated with the target serving cell. In the single-cell situation, the first TRP and the second TRP can be associated with the same serving cell.

[0070] Different power control configurations may include one or more TRP-specific parameters and / or one or more TCI state-specific parameters. For example, a first UL power control configuration may include at least one of the following: a first UL power control ID associated with a first TRP, a first P0 alpha set configuration for a first PUCCH associated with the first TRP, a second P0 alpha set configuration for a first PUSCH associated with the first TRP, or a third P0 alpha set configuration for a first SRS associated with the first TRP. A second UL power control configuration may include at least one of the following: a second UL power control ID associated with a second TRP, a fourth P0 alpha set configuration for a second PUCCH associated with the second TRP, a fifth P0 alpha set configuration for a second PUSCH associated with the second TRP, or a sixth P0 alpha set configuration for a second SRS associated with the second TRP. In some implementations, two or more power control configurations may share the same P0 alpha set configuration. For example, the first P0 alpha set configuration may be the same as the fourth P0 alpha set configuration, the second P0 alpha set configuration may be the same as the fifth P0 alpha set configuration, and / or the third P0 alpha set configuration may be the same as the sixth P0 alpha set configuration.

[0071] Figure 2 is a flow chart of a method 200 for mTRP operation according to an example implementation of the present disclosure. The method 200 may be considered as Figure 1 Further detailed description of the illustrated method 100 provides more detailed actions, or may be considered as a stand-alone method that provides a more detailed or alternative way of handling mTRP operations. Method 200 may be designed to be seamlessly integrated with method 100 and / or other methods / mechanisms described in the present disclosure, thereby building a comprehensive solution suitable for various mTRP operation scenarios. In addition, terms used in method 200, such as "first TRP", "second UL power control configuration", "second TRP" and "second UL transmission", are consistent with or correspond to the terms used in method 100.

[0072] In action 202, the UE may receive an RRC message from the first TRP. The RRC message may include a UL power control configuration set associated with the second TRP. The UL power control configuration set may include a second UL power control configuration (associated with the second TRP).

[0073] In action 204, the UE may receive a MAC CE from one of the first TRP and the second TRP. The MAC CE may indicate to the UE to apply a second UL power control configuration in the UL power control configuration set to perform a second UL transmission.

[0074] According to method 200, a UE may receive from a first TRP a set of UL power control configurations associated with another TRP, referred to as a second TRP. The UE may then receive an indication (e.g., in the form of a MAC CE) as to which UL power control configuration in the set of UL power control configurations is used for the second TRP. The indication may come from the first TRP or the second TRP, thereby providing flexibility. In some implementations, the MAC CE may be received by the UE from the second TRP. The serving cell associated with the second TRP may include information specific to communicating with the second TRP, thereby facilitating more efficient communications, such as enhancements in throughput, data rate, and / or reliability.

[0075] The UE may indicate information about the MAC CE to a lower layer of the MAC layer of the UE. The MAC CE may include information directly or indirectly related to the UL power control configuration to be used (e.g., the second UL power control configuration) and / or the second TRP. For example, the MAC CE may include at least one of the following: a serving cell ID of a serving cell associated with the second TRP, a power control configuration ID of the second UL power control configuration, or a TCI state ID of the second TCI state.

[0076] Figure 3 Flowchart of method 300 for mTRP operation according to an example implementation of the present disclosure. Method 300 may be viewed as a continuation of the previously mentioned methods (including method 100 and / or method 200), with additional detailed actions for mTRP operation, or viewed as an independent method that provides a different or more detailed way of handling mTRP operation. In addition, method 300 may be integrated with method 100, method 200, and / or other methods described in the present disclosure. In addition, method 300 uses terminology that is consistent or corresponds to terminology utilized in method 100 and method 200.

[0077] In action 302, the UE may receive a first unified TCI state type indication of a type of a first TCI state.

[0078] In action 304, the UE may receive a second unified TCI state type indication of the type of the second TCI state. Each of the first TCI state type and the second TCI state type may be a unified TCI state type under a unified TCI framework, such as a UL TCI state or a joint TCI state.

[0079] It should be noted that although actions 302 and 304 are illustrated as Figure 3 Although separate actions are shown as separate boxes in the example, these separate illustrated actions should not be construed as necessarily being performed in sequence. Figure 3 The order in which the actions are performed is not intended to be construed as a limitation, and any number of the disclosed blocks may be combined in any order to implement the method or an alternative method. For example, actions 302 and 304 may be performed concurrently or simultaneously by the UE. In addition, each of actions 302 and 304 may be performed independently of the other actions and may be omitted in some specific implementations of the present disclosure.

[0080] According to method 300, the UE may perform UL transmission toward each TRP based on a unified TCI framework. Within the unified TCI framework, two modes are available: a separate mode and a joint mode. Depending on the mode to be configured, the type of TCI state used for UL transmission to a specific TRP may be set to a UL TCI state (corresponding to a separate mode) or a joint TCI state (corresponding to a joint mode). For each TRP, the UE may receive a corresponding unified TCI state type indication (e.g., a first unified TCI state type indication and a second unified TCI state type indication), which indicates the type of TCI state associated with the TRP. This enables the UE to optimize its communication with each TRP according to the settings defined under the unified TCI framework. In some specific implementations, the type of TCI state of two or more TRPs may be indicated by the same unified TCI state type indication.

[0081] Figure 4 is a flow chart of a method 400 for mTRP operation according to an exemplary embodiment of the present disclosure. Method 400 may act as an extension of any of the previously mentioned methods (including method 100, method 200, and / or method 300) by contributing additional actions to mTRP operation. Alternatively, method 400 may be considered as an independent method that provides a different or more detailed way of handling mTRP operation. In addition, method 400 may be integrated with method 100, method 200, method 300, and / or other methods described in the present disclosure. In addition, method 400 uses terminology that is consistent with or corresponds to the terminology utilized in method 100, method 200, and method 300.

[0082] In action 402, the UE may determine a first UL transmit power for a first UL transmission (e.g., toward a first TRP) based on a first UL power control configuration.

[0083] In action 404, the UE may determine a second UL transmit power for a second UL transmission according to the second UL power control configuration.

[0084] In action 406, the UE may use (or apply) a first UL transmit power to send a first set of UL resources toward a first TRP.

[0085] In action 408, the UE may use (or apply) a second UL transmit power to send a second set of UL resources toward a second TRP.

[0086] Note that although actions 402, 404, 406, and 408 are illustrated as Figure 4 Although separate actions are shown as separate boxes in the example, these separate illustrated actions should not be construed as necessarily being performed in sequence. Figure 4 The order in which the actions are performed in the method is not intended to be construed as a limitation, and any number of the disclosed blocks may be combined in any order to implement the method or an alternative method. For example, actions 402 and 404 may be performed concurrently or simultaneously by the UE; actions 406 and 408 may be performed concurrently or simultaneously by the UE. In addition, each of actions 402, 404, 406, and 408 may be performed independently of the other actions and may be omitted in some specific implementations of the present disclosure.

[0087] According to method 400, the UE may perform personalized UL power control / management for UL transmission toward each TRP. The UE may determine the UL transmit power for each TRP (e.g., a first UL transmit power for a first TRP and a second UL transmit power for a second TRP). These determinations may be based on corresponding power control configurations. The UE may then apply the determined UL transmit power to transmit a set of UL resources to the corresponding TRP.

[0088] In some implementations, the first set of UL resources may include a first PUCCH, a first PUSCH, and a first SRS. The second set of UL resources may include a second PUCCH, a second PUSCH, and a second SRS. In such implementations, the first PUCCH, the first PUSCH, and the first SRS are sent to the first TRP based on the same UL transmit power (e.g., the first UL transmit power); the second PUCCH, the second PUSCH, and the second SRS are sent to the second TRP based on the same UL transmit power (e.g., the second UL transmit power).

[0089] It should be noted that in the present disclosure, the BS may perform methods / actions corresponding to those performed by the UE. For example, a receiving action performed by the UE may correspond to a sending / configuring action of the BS; a sending action performed by the UE may correspond to a receiving action of the BS. That is, the BS and the UE may play the roles of each other in sending and receiving. Therefore, the methods or actions performed by the BS may be combined or integrated in a manner similar to the methods or actions performed by the UE.

[0090] For example, when viewed from the perspective of a BS, method 100 may correspond to a method performed by a BS. The BS may perform an mTRP operation to communicate with the UE via multiple TRPs including a first TRP and a second TRP. The BS may configure the UE with a first TCI state and a first UL power control configuration associated with the first TRP (e.g., via RRC signaling), such that the UE can perform a first UL transmission toward the first TRP based on the first TCI state and the first UL power control configuration. The BS may also configure the UE with a second TCI state and a second UL power control configuration associated with the second TRP (e.g., via RRC signaling), such that the UE can perform a second UL transmission toward the second TRP based on the second TCI state and the second UL power control configuration.

[0091] Method 200 may also correspond to a method performed by a BS. For example, the BS may send an RRC message including a UL power control configuration set associated with a second TRP to the UE via a first TRP. The UL power control configuration set may include a second UL power control configuration. The BS may send a MAC CE to the UE via one of the first TRP and the second TRP, wherein the MAC CE indicates to the UE that the second UL power control configuration in the UL power control configuration set is applied to perform a second UL transmission. The MAC CE may include at least one of the following: a service cell ID of a service cell associated with the second TRP, a power control configuration ID of the second UL power control configuration, or a TCI state ID of a second TCI state.

[0092] The method 300 may also correspond to a method performed by a BS. For example, the BS may send a first unified TCI state type indication of a type of a first TCI state to the UE, and send a second unified TCI state type indication of a type of a second TCI state to the UE, wherein each of the type of the first TCI state and the type of the second TCI state is one of a UL TCI state and a joint TCI state.

[0093] The following provides further detailed descriptions of various aspects of the present disclosure and details of methods / mechanisms / methods performed by a UE or a BS (eg, including methods 100, 200, 300, and 400).

[0094] As mentioned above, when mTRP operation is applied / performed, the serving cell (or BS) can schedule UEs from at least two TRPs. mTRP operation is proposed and designed to provide wider coverage, enhance reliability, and improve the data rate of DL channels, DL RS, UL channels, and ULRS transmission / reception.

[0095] If mTRP PUCCH repetition is applied, the UE may be directed toward two TRPs (e.g., referenced to FIG. 1 ) having corresponding beam directions associated with different spatial relationship information, different UL TCI states, and / or different joint TCI states. Figure 1 , Figure 2 , Figure 3 and / or Figure 4 The described first TRP and second TRP) perform PUCCH transmission of the same uplink control information (UCI) content (or transport block (TB)). Spatial relationship information, UL TCI state or joint TCI state may include parameters for configuring the spatial relationship between RS (e.g., SRS, CSI-RS and / or SSB) and the target RS set. For example, the target RS set may be a DM-RS port of a PUSCH or PUCCH. Spatial relationship information, UL TCI state and joint TCI state may also include parameters for configuring power control for PUCCH or PUSCH, respectively. Spatial relationship information, UL TCI state and joint TCI state may be indicated by MAC CE or downlink control information (DCI). For example, the UE may receive MAC CE or DCI from a network, a serving cell, a target cell or a non-serving cell. MAC CE or DCI may indicate spatial relationship information, UL TCI state and / or joint TCI state. The term "joint TCI state" may be equivalent to or similar to the "DLorJoint TCI state" in the present disclosure.

[0096] In the single-cell (intra-cell) case, two TRPs may be associated with the physical cell identity (PCI) of the serving cell.

[0097] In the inter-cell case, the two TRPs may be associated with different PCIs. For example, one TRP may be associated with the PCI of the serving cell, while the other TRP may be associated with a PCI different from the PCI of the serving cell.

[0098] If mTRP PUSCH repetition is applied, then according to an indication in a single DCI received by the UE from a serving cell (or from a TRP associated with a serving cell) and / or an indication in a semi-statically configured grant provided by an RRC message received by the UE from a serving cell (or from a TRP associated with a serving cell), the UE may perform a set of PUSCH transmissions with the same UCI content (or transport block) toward two TRPs having corresponding beam directions associated with different spatial relationship information in the time domain, different SRS resource sets, different UL TCI states, and / or different joint TCI states. In addition, the spatial relationship information, the SRS resource set, the UL TCI state, and / or the joint TCI state may also be indicated by a MAC CE or DCI (e.g., an SRS resource indicator). For example, the UE may receive a MAC CE or DCI from a network, a serving cell, a target cell, or a non-serving cell, wherein the MAC CE or DCI indicates the spatial relationship information, the SRS resource set, the UL TCI state, and / or the joint TCI state.

[0099] In the single cell (intra-cell) case, the two TRPs may be associated with the PCI of the serving cell. In the inter-cell case, the two TRPs may be associated with different PCIs. For example, one TRP may be associated with the PCI of the serving cell, while the other TRP may be associated with a PCI different from the PCI of the serving cell. A PCI different from the PCI of the serving cell may be used to identify a cell other than the serving cell.

[0100] For the inter-cell case, the UE may receive an indication in a single DCI from the serving cell (or from a TRP associated with the serving cell) or from a TRP associated with a PCI different from the PCI of the serving cell. For the inter-cell case, the UE may receive an indication in a semi-statically configured grant from the serving cell (or from a TRP associated with the serving cell) or from a TRP associated with a PCI different from the PCI of the serving cell via an RRC message.

[0101] The UE may be configured with inter-cell beam management through the NW, pre-configuration, or UE capability. For example, after receiving a configuration including information related to inter-cell beam management, the UE may determine that it is configured with inter-cell beam management through the NW. The configuration including information related to inter-cell beam management may be included in an RRC message, a MAC CE, and / or a DCI.

[0102] The configuration including information related to inter-cell beam management may be or may include (but is not limited to) information of TCI configuration associated with TRP associated with PCI different from PCI of serving cell, information of spatial relationship configuration associated with TRP associated with PCI different from PCI of serving cell, information of RS configuration associated with TCI configuration associated with TRP associated with PCI different from PCI of serving cell, information of RS configuration associated with spatial relationship configuration associated with TRP associated with PCI different from PCI of serving cell, information of TCI configuration associated with TRP associated with PCI of serving cell, information of spatial relationship configuration associated with TRP associated with PCI of serving cell, information of RS configuration associated with TCI configuration associated with TRP associated with PCI of serving cell, and / or information of RS configuration associated with spatial relationship configuration associated with TRP associated with PCI of serving cell. It should be noted that the TCI configuration may be a DL TCI configuration (e.g., a list of TCI states configured for DL ​​channels), a UL TCI configuration (e.g., a list of TCI states configured for UL channels), and / or a joint TCI configuration (e.g., a list of TCI states configured for both DL channels and UL channels). Similarly, the information of the RS configured with the TCI configuration may be information of the RS configured with the DL TCI configuration, the UL TCI configuration, and / or the joint TCI configuration. In addition, the above-mentioned TCI configuration may be associated with a PDSCH configuration, a PUSCH configuration, a PDCCH configuration, a PUCCH configuration, a PRACH configuration, a BWP-dedicated configuration, an SRS configuration, and / or a serving cell configuration.

[0103] For example, the UE may be pre-configured with the ability to perform inter-cell beam management. The pre-configuration may be stored in a UMTS User Identity Module (USIM) based on the UE itself and / or based on a version. The UE may be pre-configured with inter-cell beam management. The UE may determine whether it is configured with inter-cell beam management based on the pre-configured information.

[0104] For example, after the UE receives the UE capability inquiry message from the serving cell, the UE may include information related to the ability to perform inter-cell beam management in the UE capability information message. Thereafter, the UE (e.g., in particular the RRC layer of the UE) may submit the UE capability information message to the lower layer (e.g., the PDCP layer of the UE, the MAC layer of the UE, the PHY layer of the UE) for sending to the serving cell.

[0105] After receiving the UE capability inquiry message, the UE may determine whether at least one of information about support for inter-cell beam management, information about support for enhanced MIMO (feMIMO), information about support for higher frequency bands (e.g., FR2), and information about support for NR is present in the UE capability inquiry message.

[0106] If at least one of information about support for inter-cell beam management, information about support for feMIMO, information about support for higher frequency bands (e.g., FR2), and information about support for NR is present in the UE capability inquiry message, the UE may further determine whether it supports inter-cell beam management and / or whether it is (pre-)configured with inter-cell beam management.

[0107] If information about support for inter-cell beam management, information about support for feMIMO, information about support for higher frequency bands (e.g., FR2), and information about support for NR do not exist in the UE capability inquiry message, the UE cannot further determine whether it supports inter-cell beam management, nor can it determine whether it is (pre-)configured with inter-cell beam management.

[0108] After the UE determines that it supports inter-cell beam management and / or is (pre-)configured with inter-cell beam management, the UE may include information related to the capability to perform inter-cell beam management in the UE capability information message.

[0109] After the UE determines that it neither supports inter-cell beam management nor is (pre-)configured with inter-cell beam management, the UE may not include information related to the capability to perform inter-cell beam management in the UE capability information message.

[0110] In one example, the UE capability information message may include the number of cells supported for operating inter-cell beam management (ICBM).

[0111] For inter-cell beam management (e.g., if the UE is configured with inter-cell beam management), the UE may receive or send UE-dedicated channels / signals via a TRP associated with a PCI different from the PCI of the serving cell and / or a TRP associated with the PCI of the serving cell, while non-UE-dedicated channels / signals may only be received via a TRP associated with the PCI of the serving cell. The methods / mechanisms / methods in the present disclosure (e.g., including methods 100, 200, 300, and 400) may be applied to inter-cell beam management situations and / or intra-cell beam management situations. For example, in the case of inter-cell beam management, the first TRP may be associated with the first PCI of the first serving cell, and the second TRP may be associated with the second PCI of the second serving cell. In the case of intra-cell beam management, the first TRP and the second TRP may be associated with the same PCI (or the same serving cell).

[0112] UE dedicated channels / signals may include, but are not limited to, messages / signals / information via logical channels such as dedicated control channels (DCCH) and dedicated traffic channels (DTCH). In some implementations, UE dedicated channels / signals may include, but are not limited to, signals / information via PDCCH and PUCCH.

[0113] An explanation of the various types of UE dedicated channels is provided below.

[0114] DCCH: DCCH is a point-to-point bidirectional (including UL and DL) control channel that sends dedicated control (plane) information between the UE and the network. DCCH can be used by UEs with RRC connection.

[0115] DCCH-DL-SCH (logical channel DCCH can be mapped to transport channel DL-SCH): The MAC entity of the UE can receive DL control messages / information / signals on the transport channel DL-SCH. After processing in the MAC entity of the UE, the MAC entity of the UE can pass the processed DL control messages / information / signals to the upper layer (e.g., the PDCP layer of the UE, the RRC layer of the UE) via the logical channel DCCH. For example, the RRC layer of the UE can receive DL RRC messages such as RRC reconfiguration messages, RRC recovery messages, RRC reconstruction messages, RRC release messages, UE capability inquiry messages, UE information request messages, and logged measurement configuration messages from the lower layer of the UE via the logical channel DCCH mapped to the transport channel DL-SCH.

[0116] DCCH-UL-SCH (logical channel DCCH can be mapped to transport channel UL-SCH): The MAC entity of the UE can receive UL control messages / information / signals on the logical channel DCCH. After processing in the MAC entity of the UE, the MAC entity of the UE can pass the processed UL control message / information / signal to the lower layer (e.g., the PHY layer of the UE) via the transport channel UL-SCH. For example, the RRC layer of the UE can send UL RRC messages such as RRC reconfiguration complete message, RRC recovery complete message, RRC reconstruction complete message, RRC establishment complete message, measurement report message, UE capability information message, UE auxiliary information message and dedicated SIB request message to the lower layer of the UE via the logical channel DCCH mapped to the transport channel UL-SCH.

[0117] DTCH: DTCH is a point-to-point traffic channel dedicated to one UE and used to transfer user (plane) information. DTCH can exist in both UL and DL.

[0118] DTCH-DL-SCH (logical channel DTCH can be mapped to transport channel DL-SCH): The MAC entity of the UE can receive DL user information / signals on the transport channel DL-SCH. After processing in the MAC entity of the UE, the MAC entity of the UE can deliver the processed DL user information / signals to the upper layer (e.g., PDCP layer of the UE, RRC layer of the UE) via the logical channel DTCH.

[0119] DTCH-UL-SCH (logical channel DTCH can be mapped to transport channel UL-SCH): The MAC entity of the UE can receive UL user information / signals on the logical channel DTCH. After processing in the MAC entity of the UE, the MAC entity of the UE can pass the processed UL user information / signals to the lower layer (e.g., the PHY layer of the UE) via the transport channel UL-SCH.

[0120] Non-UE-dedicated channels / signals may include, but are not limited to, messages / signals / information via logical channels such as Broadcast Control Channel (BCCH), Paging Control Channel (PCCH), and Common Control Channel (CCCH).

[0121] An explanation of the various types of non-UE dedicated channels is provided below.

[0122] BCCH: BCCH is a DL channel used for broadcasting system control information.

[0123] BCCH-BCH (logical channel BCCH can be mapped to transport channel BCH): The MAC entity of the UE can receive DL control messages / information / signals on the transport channel BCH. After processing in the MAC entity of the UE, the MAC entity of the UE can deliver the processed DL control messages / information / signals to the upper layer (e.g., PDCP layer of the UE, RRC layer of the UE) via the logical channel BCCH. For example, the RRC layer of the UE can receive MIB messages from the lower layer of the UE via the logical channel BCCH mapped to the transport channel BCH.

[0124] BCCH-DL-SCH (logical channel BCCH can be mapped to transport channel DL-SCH): The MAC entity of the UE can receive DL control messages / information / signals on the transport channel DL-SCH. After processing in the MAC entity of the UE, the MAC entity of the UE can deliver the processed DL control messages / information / signals to the upper layer (e.g., the PDCP layer of the UE, the RRC layer of the UE) via the logical channel BCCH. For example, the RRC layer of the UE can receive SIB1 messages and system information messages from the lower layer of the UE via the logical channel BCCH mapped to the transport channel DL-SCH.

[0125] PCCH: PCCH is a DL channel that carries paging messages.

[0126] PCCH-PCH (logical channel PCCH can be mapped to transport channel PCH): The MAC entity of the UE can receive DL control messages / information / signals on the transport channel PCH. After processing in the MAC entity of the UE, the MAC entity of the UE can deliver the processed DL control messages / information / signals to the upper layer (e.g., PDCP layer of the UE, RRC layer of the UE) via the logical channel PCCH. For example, the RRC layer of the UE can receive a paging message from the lower layer of the UE via the logical channel PCCH mapped to the transport channel PCH.

[0127] CCCH: CCCH is a channel used to send control information between UE and network. This channel is used for UE that does not have RRC connection with the network.

[0128] CCCH-DL-SCH (logical channel CCCH can be mapped to transport channel DL-SCH): The MAC entity of the UE can receive DL control messages / information / signals on the transport channel DL-SCH. After processing in the MAC entity of the UE, the MAC entity of the UE can deliver the processed DL control messages / information / signals to the upper layer (e.g., the PDCP layer of the UE, the RRC layer of the UE) via the logical channel CCCH. For example, the RRC layer of the UE can receive DL RRC messages (such as RRC setup messages and RRC rejection messages) from the lower layer of the UE via the logical channel CCCH mapped to the transport channel DL-SCH.

[0129] CCCH-UL-SCH (logical channel CCCH can be mapped to transport channel UL-SCH): The MAC entity of the UE can receive UL control messages / information / signals on the logical channel CCCH. After processing in the MAC entity of the UE, the MAC entity of the UE can pass the processed UL control message / information / signal to the lower layer (e.g., the PHY layer of the UE) via the transport channel UL-SCH. For example, the RRC layer of the UE can send UL RRC messages (such as RRC recovery request message, RRC re-establishment request message, RRC establishment request message and RRC system information request message) to the lower layer of the UE via the logical channel CCCH mapped to the transport channel UL-SCH.

[0130] If the UE is configured with inter-cell beam management or when the UE is performing inter-cell beam management operations or when the UE performs inter-cell mobility, the UE may send or receive messages / information / signals to or from a TRP associated with a PCI different from the PCI of the serving cell and / or a TRP associated with the PCI of the serving cell. The PCI associated with the TRP may belong to another cell, such as a cell having a TRP associated with a PCI different from the PCI of the serving cell. For ease of illustration, such another cell may be referred to as a "target cell" or a "target serving cell."

[0131] In an intra-node scenario (e.g., in the case of carrier aggregation (CA)), the UE may apply the same MAC entity of the UE to the serving cell and the target serving cell. The serving cell and the target serving cell may be operated by the same network node (e.g., a master node or a BS), but is not limited thereto.

[0132] Figure 5 is a schematic diagram illustrating a scene in a node according to an example implementation of the present disclosure. Figure 5As illustrated, the MAC layer (entity) 502 and the physical (PHY) layer 504 of the UE 506 may process messages / information / signals sent to or received from a TRP 508 associated with a serving cell 512 and a TRP 510 associated with a physical cell identity (PCI) different from the serving cell 512. The TRP 510 may be associated with a target serving cell 514 (e.g., cell #2). From the perspective of the UE, when the UE 506 is configured with inter-cell beam management or when the UE 506 is performing inter-cell beam management or when the UE 506 performs inter-cell mobility, the UE 506 may receive non-UE-specific channels / signals via the TRP 508 associated with the PCI (e.g., PCI #1) of the serving cell 512, and send / receive UE-specific channels / signals via the TRP 510 associated with a PCI (e.g., PCI #2) different from the PCI (e.g., PCI #1) of the serving cell 512.

[0133] Single TRP operation and inter-cell beam management may be applied together. In another specific implementation, the UE may receive non-UE-dedicated channels / signals via a TRP 508 associated with a PCI of a serving cell 512 (e.g., cell #1), and send / receive UE-dedicated channels / signals via a TRP 510 associated with a PCI different from the PCI of the serving cell and / or a TRP 508 associated with the PCI of the serving cell. mTRP operation and inter-cell beam management may be applied together.

[0134] The serving cell and the target serving cell may operate on the same frequency band or on different frequency bands. If the serving cell and the target serving cell operate on the same frequency, they are intra-frequency cells. If the serving cell and the target serving cell operate on different frequency bands, they are inter-frequency cells. The TRP of the serving cell and the TRP of the target cell may be spatially multiplexed. If they operate on different component carriers, the UE may perform CA between the serving cell and the target serving cell, where the serving cell may be a primary cell and the target serving cell may be a secondary cell.

[0135] When the functional split technique is applied in the network deployment, the network node (e.g., BS) may include one central unit (CU) and several distributed units (DUs). The CU is a logical node that hosts the RRC, Service Data Adaptation Protocol (SDAP), and Packet Data Convergence Protocol (PDCP) protocols of the gNB or the RRC and PDCP protocols of the en-gNB that control the operation of one or more DUs. The DU is a logical node that hosts the radio link control (RLC), MAC, and PHY layers of the gNB or en-gNB, and its operation is partially controlled by the gNB-CU. One DU may support one or more cells. The CU may be connected to several DUs via the F1 interface. The intra-node inter-cell scenario can be further classified into (1) intra-CU intra-DU case and (2) intra-CU inter-DU case.

[0136] In the case of intra-CU intra-DU, the serving cells (e.g., source serving cell, target serving cell) may belong to the same DU and the same CU. In the case of intra-CU inter-DU, one serving cell may be supported by one DU, and another serving cell may be supported by another DU. Two serving cells may be supported by the same CU.

[0137] Figure 6 1 is a schematic diagram illustrating the situation between DUs in a CU according to an example implementation of the present disclosure. Figure 6 As illustrated, a serving cell 612 (e.g., cell #1) associated with a TRP 616 may be supported by one DU (e.g., a PHY layer 622, a MAC layer (entity) 624, and an RLC layer 626 corresponding to a UE 620), and another serving cell 614 (e.g., cell #2) associated with a TRP 618 may be supported by a different DU (e.g., a PHY layer 628, a MAC layer (entity) 630, and an RLC layer 632 corresponding to a UE 620), wherein both serving cells 612 and 614 are supported by the same CU (e.g., a PDCP layer 634 and an RRC layer 636 corresponding to a UE 620). TRP 616 may be associated with a PCI (e.g., PCI #1) of serving cell 612. TRP 618 may be associated with a PCI (e.g., PCI #2) that is different from the PCI (e.g., PCI #1) of serving cell 612. For example, TRP 618 may be associated with the PCI of the (target) serving cell 614.

[0138] In an inter-node scenario (for example, in a dual connectivity (DC) case), the UE may respectively apply one MAC entity of the UE to process messages / information / signals received from or sent to the serving cell, and apply another MAC entity of the UE to process messages / information / signals received from or sent to the target serving cell.

[0139] Figure 7 is a schematic diagram illustrating a scene in a node according to an example implementation of the present disclosure. Figure 7 As illustrated, different MAC entities (e.g., MAC layer (entity) 722 and MAC layer (entity) 724) of UE 720 may process messages / information / signals sent to or received from TRP 716 of serving cell 712 (e.g., cell #1) and TRP 718 of another serving cell 714 (e.g., cell #2). TRP 718 may also be considered as a TRP associated with a PCI (e.g., PCI #2) that is different from the PCI (e.g., PCI #1) of serving cell 714. Serving cell 714 may also be referred to as a target serving cell.

[0140] The serving cell and the target serving cell may be operated by different network nodes (e.g., one is operated by a primary node and the other is operated by a secondary node), but is not limited thereto. From the perspective of the UE, when the UE 720 is configured with inter-cell beam management or when the UE 720 is performing inter-cell beam management, the UE 720 may receive non-UE-dedicated channels / signals via a TRP 716 associated with a PCI of the serving cell 712 (e.g., cell #1), and send / receive UE-dedicated channels / signals via a TRP 718 associated with a PCI different from the PCI of the serving cell 712. Single TRP operation and inter-cell beam management may be applied together.

[0141] In another specific implementation, the UE 720 may receive non-UE-dedicated channels / signals via a TRP 716 associated with a PCI of a serving cell 712 (e.g., cell #1), and send / receive UE-dedicated channels / signals via a TRP 718 associated with a PCI different from the PCI of the serving cell 712 and / or a TRP (e.g., TRP 716) associated with the PCI of the serving cell 712. mTRP operation and inter-cell beam management may be applied together. For example, cell #1 may be associated with two TRPs, while cell #2 may be associated with a single TRP.

[0142] The serving cell 712 and the target serving cell 714 may operate on the same frequency band or on different frequency bands. If the serving cell and the target serving cell operate on the same frequency, they are intra-frequency cells. If the serving cell and the target serving cell operate on different frequency bands, they are inter-frequency cells. The TRP 716 of the serving cell and the TRP 718 of the target serving cell 714 may be spatially multiplexed. If the serving cell 712 and the target serving cell 714 operate on different frequency carriers, the UE may perform multiple connections (MC) or dual connections (DC) between the serving cell 712 and the target serving cell 714, where the serving cell 712 may be a special cell or a primary cell, and the target serving cell 714 may be a special cell, a primary secondary cell, or a secondary cell.

[0143] It should be noted that the methods / mechanisms / approaches described in the present disclosure (including but not limited to methods 100, 200, 300 and 400) can be applied to the inter-node, intra-node, intra-cell or inter-cell scenarios / situations mentioned in the present disclosure.

[0144] According to some aspects of the present disclosure, if a UE applies mTRP UL operation (e.g., mTRPPUCCH repetition, mTRP PUSCH repetition) in a single cell, the UE may apply UL transmission toward two TRPs with corresponding beam directions. Each corresponding beam direction may be associated with spatial relationship information, UL TCI state, or joint TCI state.

[0145] The two beam directions may be associated with different spatial relationship information, different SRS resource sets, different precoding information and number of layers, different panels, different UL TCI states and / or different joint TCI states.

[0146] If the UE is configured with spatial relationship information and / or the UE is capable of supporting spatial relationship information, each corresponding beam direction may be associated with the spatial relationship information.

[0147] If the UE is configured with a unified TCI framework (e.g., unified TCI configuration) and / or the UE is capable of supporting the unified TCI framework, each corresponding beam direction may be associated with a TCI state (e.g., UL TCI state, DL TCI state, joint TCI state). If the UE is configured with a unified TCI type set to "separate", the UE operates in separate mode and each corresponding beam direction may be associated with a UL TCI state. If the UE is configured with a unified TCI type set to "jointULDL", the UE operates in joint mode and each corresponding beam direction may be associated with a unified TCI state.

[0148] The UE may receive one or more UL power control parameter sets in an RRC message (e.g., RRC setup message, RRC recovery message, RRC reconfiguration message) from a serving cell (e.g., PCell). Each UL power control parameter set may be identified as an ID. For example, each UL power control parameter set may be associated with a specific power control parameter set ID, PCI, TCI state ID, panel ID, cell ID, search space ID, CORESET ID, CORESETPoolIndex, or TRP-specific ID, but is not limited thereto. Each UL power control parameter set may include parameters required for UL open-loop or closed-loop power control. After receiving the UL power control parameter set, the UE may configure itself using the received UL power control parameter set. It should be noted that the UL power control parameter set may be (equal to) a PUCCH power control parameter set. In addition, the UE may receive an RRC message from a TRP, such as Figure 2 As illustrated, each UL power control parameter set may correspond to a respective UL power control configuration (eg, a first UL power control configuration or a second UL power control configuration). The terms “UL power control parameter set” and “UL power control configuration” may be used interchangeably in the present disclosure.

[0149] If the UL power control parameter set is associated with a PUCCH, the UE may apply and / or configure the UL power control parameter set for PUCCH transmission. The UL power control parameter set may be associated with one or more DCI fields. The UL power control parameter set may be associated with one or more DCI formats. Each of the UL power control parameter sets may be associated with a CORESET, a search space, a CORESET group, a search space group, and / or a CORESET pool.

[0150] If the UL power control parameter set is associated with PUSCH, the UE may apply and / or configure the UL power control parameter set for PUSCH transmission. If the UL power control parameter set is associated with an SRS resource set, the UE may apply and / or configure one or more UL power control parameter sets associated with the SRS resource set for corresponding PUSCH transmission. If the UL power control parameter set is associated with PRACH, the UE may apply and / or configure the UL power control parameter set for PRACH transmission. If the UL power control parameter set is associated with SRS, the UE may apply and / or configure the UL power control parameter set for SRS transmission. If the UL power control parameter set is associated with an SRS resource set, the UE may apply and / or configure the UL power control parameter set for SRS transmission according to the configuration of the SRS resource set. If the UL power control parameter set is associated with an SRS resource, the UE may apply and / or configure the UL power control parameter set for SRS transmission according to the configuration of the SRS resource.

[0151] The UE may receive an RRC message or system information including a cell group specific configuration (e.g., CellGroupConfig IE) from a serving cell (e.g., a PCell in the case where the UE is configured with carrier aggregation). Each cell group specific configuration may include a cell group identifier and several cell group specific parameters for the identified cell group to configure the MCG or SCG to the UE. For example, the cell group identifier may identify the MCG or the SCG. A cell group specific configuration including a cell group identifier that identifies the MCG may configure the UE with the MCG specific configuration. A cell group specific configuration including a cell group identifier that identifies the SCG may configure the UE with the SCG specific configuration. An RRC message including a cell group specific configuration and Figure 2 The illustrated RRC messages may be the same signaling or different signaling.

[0152] When / after the UE receives an RRC message or system information including a cell group specific configuration, the UE may apply the configuration included in the cell group specific configuration. When / after the UE receives the cell group specific configuration, the UE may further determine whether the cell group specific configuration includes a special cell configuration (e.g., SpCellConfig IE). If the UE determines that the cell group specific configuration includes a special cell configuration, the UE may configure itself using the SpCell for the corresponding cell group, which is identified by the cell group identifier including the corresponding special cell configuration in the cell group configuration. When / after the UE receives the cell group specific configuration, the UE may determine whether the cell group specific configuration includes a list of SCell configurations to be added or modified (e.g., SCellToAddModList IE). If the UE determines that the cell group specific configuration includes a list of SCell configurations to be added or modified, the UE may perform the SCell addition / modification process based on the list of SCell configurations.

[0153] The special cell configuration may include serving cell specific MAC and PHY parameters for the SpCell of the cell group. The special cell configuration for the SpCell of the cell group is included in the cell group specific configuration including information of the corresponding cell group. The special cell configuration may also include serving cell configuration for the SpCell (e.g., ServingCellConfig IE).

[0154] The list of SCell configurations to be added or modified may include configurations / parameters for the SCell. Each SCell configuration (e.g., SCellConfig IE) may include a service cell configuration for the corresponding SCell, which is identified by an SCell index included in the SCell configuration. The service cell configuration may include the configuration of the corresponding service cell. The UE may regard the SCell as a service cell. For example, when / after the UE applies the service cell configuration for the SCell, the UE may regard the SCell as a service cell. The UE may regard the SpCell as a service cell. For example, when / after the UE applies the service cell configuration for the SpCell, the UE may regard the SpCell as a service cell.

[0155] The serving cell configuration may be used to configure (e.g., add or modify) a serving cell for the UE, wherein the UE receives and / or applies the serving cell configuration, and the serving cell may be a SpCell or SCell of an MCG or an SCG. The UE may receive the serving cell configuration from a serving cell associated with the serving cell configuration. The UE may receive the serving cell configuration from a first serving cell, wherein the first serving cell is different from a second serving cell associated with the serving cell configuration.

[0156] When / after the UE receives an RRC message or system information including a serving cell configuration, the UE may determine whether the UE is in an RRC_CONNECTED state and whether a timer (e.g., a T311 timer) is running. If the UE determines that the UE is in an RRC_CONNECTED state and the timer is not running, the UE may use the configuration included in the serving cell group configuration.

[0157] The UE may receive an RRC message from the SpCell of the MCG or SCG. In mTRP operation, the UE may receive an RRC message from the SpCell of the MCG or SCG through a TRP (eg, a first TRP or a second TRP). The UE may receive system information from the SpCell of the MCG.

[0158] The parameters in the serving cell configuration may be mostly UE-specific, but partly also cell-specific (e.g., in an additionally configured bandwidth portion). Reconfiguration between PUCCH and PUCCHless SCell may be supported using only SCell release and addition. The parameters in the serving cell configuration for UL power control may include at least one of the following: a unified TCI state type indication, a list of uplink power control configurations to be configured, a list of uplink power control configurations to be released, a list of additional PCI configurations, or a UL BWP configuration. In some implementations, the UE may receive the parameters by an additional or existing action as part of any of the previously mentioned methods 100, 200, 300, and 400.

[0159] Exemplary details of the parameters are illustrated below.

[0160] Unified TCI state type indication (e.g., unifiedtci-StateType IE): This indication (e.g., a first unified TCI state type indication or a second unified TCI state type indication) may indicate that the UE is configured with a unified TCI state type for this serving cell. The value "separate" may mean that a separate mode is configured and the serving cell is configured with DLorJoint-TCIState for the DL TCI state and UL-TCIState for the UL TCI state. The value "joint" may mean that a joint mode is configured and the serving cell is configured with DLorJoint-TCIState for the joint TCI state for UL and DL operations. It should be noted that "this serving cell" may be associated with the serving cell configuration. In another specific implementation, "this serving cell" may be configured by the serving cell configuration. It should be noted that "this serving cell" may be a serving cell in which the UE receives a unified TCI state indication or another cell in which the UE does not receive a unified TCI state indication.

[0161] In some specific implementations, the UE may apply a unified TCI state type corresponding to the serving cell to a unified TCI state type corresponding to the target serving cell. For example, after the UE receives an indication of a unified TCI state type corresponding to the serving cell, the UE may apply the unified TCI state type corresponding to the serving cell to the target serving cell. In such specific implementations, the unified TCI state type of the serving cell and the target serving cell may be determined based on a single unified TCI state type indication. For example, the unified TCI state type applied to the serving cell may be indicated to the UE as "UL-TCIState", and then the UE may also apply the same unified TCI state type configured for the serving cell, for example, "UL-TCIState" for the target serving cell. The unified TCI state type may be configured via RRC signaling, MAC CE, or DCI from the serving cell or the target serving cell.

[0162] In some implementations, the UE may receive a corresponding unified TCI state type indication (eg, a second unified TCI state type indication) for the target serving cell, for example, via a serving cell configuration specific to the target serving cell.

[0163] List of UL power control configurations to be configured (e.g., added, modified) (e.g., Uplink-PowerControlToAddModList IE): When a unified TCI state type indication (e.g., unifiedtci-StateType IE) is configured, the list of UL power control configurations to be configured (e.g., added or modified) may configure (e.g., add, modify) UL power control parameters for PUSCH, PUCCH, and SRS. When a list of UL power control configurations is configured to the UE, the network may not configure other UL power control parameters configured in other IEs, such as PUCCH-PowerControl IE, PUSCH-PowerControl IE, or SRS-Config IE, for the UE.

[0164] Each UL power control configuration (e.g., uplink-powerControl IE) may be used to configure UE-specific power control parameters for PUSCH, PUCCH, and SRS for a serving cell associated with a serving cell configuration including such UL power control configuration. Each UL power control configuration may include a UL power control identifier for identifying such UL power control configuration, a P0 alpha set configuration for PUCCH, a P0 alpha set configuration for PUSCH, and a P0 alpha set configuration for SRS. The P0 alpha set configuration may include a P0 value, an alpha value, and a closed loop index for UL power control of a corresponding channel (e.g., PUCCH, PUSCH) or RS (e.g., SRS).

[0165] If the list of UL power control configurations configured by the NW includes only one power control configuration, the UE may directly apply the power control configuration to the UL transmission. If the list of UL power control configurations configured by the NW includes more than one power control configuration and the UL transmission is configured with multi-TRP-based UL transmission (e.g., intra-cell multi-TRP UL transmission or inter-cell multi-TRP UL transmission), the UE may directly apply more than one power control configuration to the UL transmission toward more than one TRP.

[0166] List of UL power control configurations to be released (e.g., Uplink-PowerControlToReleaseListIE): The list of UL power control configurations to be released may release a list of UL power control configurations for the UE. Each UL power control configuration to be released may be identified by a UL power control identifier. Thus, the list of UL power control configurations to be released may include a list of UL power control identifiers identifying the UL power control configurations to be released.

[0167] List of additional PCI configurations (e.g., AdditionalPCIList IE): The list of additional PCI configurations may include a list of timing information for additional SSBs associated with a PCI different from the PCI of the serving cell. It should be noted that the serving cell is associated with a serving cell configuration including the list of additional PCI configurations.

[0168] Each additional PCI configuration (e.g., SSB-MTC-AdditionalPCI IE) may be used to configure a measurement timing configuration, e.g., a timing opportunity for the UE to measure an SSB, where the SSB is associated with a PCI that is different from the PCI of the serving cell. Each additional PCI configuration may include at least one of the following: (1) a PCI that is different from the PCI of the serving cell, (2) a PCI index, (3) a periodicity of the SSB to be measured, (4) a time domain location of an SS block sent in a half-frame with an SSB, and (5) an average per-resource element energy (EPRE) in dBm for resource elements carrying a secondary synchronization signal used by the network for SSB transmission. The information in the additional PCI configuration is associated with the SSB to be measured indicated in the additional PCI configuration.

[0169] UL BWP configuration (e.g., BWP-UplinkDedicated IE): Each UL BWP configuration may correspond to an initial BWP for the serving cell or an additional BWP for the serving cell. Each UL BWP may include UE-specific parameters to configure the UL BWP for the UE in the serving cell, where the serving cell is associated with a serving cell configuration including the UL BWP configuration. Each UL BWP configuration may include UL TCI state information (e.g., ul-TCIState IE) and a corresponding UL power control configuration.

[0170] The UL TCI state information (e.g., ul-TCI-StateList IE) may be an explicit list of UL TCI state configurations (e.g., explicitlist IE) or a referenced unified TCI state list (e.g., unifiedTCI-StateRef IE). The UL TCI state information may indicate to the UE the applicable UL TCI state for PUCCH, PUSCH, and SRS. The explicit list of UL TCI state configurations may include a list of UL TCI state configurations to be configured (e.g., added, modified) (e.g., TCI-UL-State IE, DLorJoint-TCIState IE) and a list of UL TCI state identifiers (e.g., TCI-UL-State-Id IE, DLorJoint-TCIState-Id IE) identifying the corresponding UL TCI state configurations to be released.

[0171] Each UL TCI state configuration (e.g., TCI-UL-State IE, DLorJoint-TCIState IE) may be associated with one or two DL or UL RSs having a corresponding quasi-co-location (QCL) type. Each UL TCI state configuration may include a UL TCI state identifier (e.g., TCI-UL-State-Id IE, DLorJoint-TCIState-Id IE) to identify such a UL TCI state configuration. For example, if the UE is indicated with a unified TCI state type indication of "separate", the UE may apply the UL TCI state configuration TCI-UL-State IE. If the UE is indicated with a unified TCI state type indication of "separate", the UL TCI state configuration may include a UL TCI state identifier TCI-UL-State-Id IE. If the UE is indicated with a unified TCI state type indication of "joint", the UE may apply the UL TCI state configuration DLorJoint-TCIState IE. If the UE is indicated with the unified TCI state type indication "joint", the UL TCI state configuration may include a UL TCI state identifier DLorJoint-TCIState-Id IE. In this case, the terms "UL TCI state configuration" and "DLorJoint TCI state configuration" may be used interchangeably.

[0172] Each UL TCI state configuration (e.g., TCI-UL-State IE, DLorJoint-TCIState IE) may include a serving cell identifier (e.g., ServCellIndex IE, servingCellId IE). The serving cell identifier may identify the serving cell of the UE in which the RS indicated in the UL TCI state configuration is configured. In the case where the UL TCI state configuration does not include a serving cell identifier (in other words, there is no serving cell identifier in the UL TCI state configuration), this implicitly means that the serving cell is a serving cell in which the (UL)TCI state is configured. For example, when the QCL type is configured with a specific type (e.g., type C or type D), the RS indicated in the UL TCI state configuration may be located on a serving cell different from the serving cell in which the (UL)TCI state is configured. For another example, when the QCL type is configured with a specific type, the RS indicated in the UL TCI state configuration may be located on the same serving cell as the serving cell in which the (UL)TCI state is configured. The UE may determine a UL TX spatial filter based on a reference RS configured in a UL TCI state configuration (eg, TCI-UL-State IE, DLorJoint-TCIState IE).

[0173] Each UL TCI state configuration (e.g., TCI-UL-State IE, DLorJoint-TCIState IE) may include a BWP identifier. The BWP identifier may identify the DLBWP where the DL RS (e.g., CSI-RS) indicated in the same UL TCI state configuration is located. In addition, the BWP identifier may identify the ULBWP where the UL RS (e.g., SRS) indicated in the same UL TCI state configuration is located. Therefore, the interpretation of the BWP identifier may correspond to the RS indicated in the same UL TCI state configuration. If CSI-RS or SRS is indicated in the UL TCI state configuration, the UL TCI state configuration is required to include the BWP identifier. If neither CSI-RS nor SRS is indicated in the UL TCI state configuration, the UL TCI state configuration is not required to include the BWP identifier. Based on the RS, the UE may derive the corresponding QCL type for the UL TCI state. For example, the QCL information referenced by the UE for the UL TCI state may include the same RS as the RS indicated in the UL TCI state configuration.

[0174] Each UL TCI state configuration (e.g., TCI-UL-State IE, DLorJoint-TCIState IE) may indicate an RS. The RS may be an SSB, a CSI-RS, or an SRS. Therefore, each UL TCI state configuration (e.g., TCI-UL-State IE, DLorJoint-TCIState IE) may include an SSB index indicating an SSB, a CSI-RS source ID indicating a CSI-RS, or an SRS source ID indicating an SRS. Each UL TCI state configuration (e.g., TCI-UL-State IE, DLorJoint-TCIState IE) may include an additional PCI (e.g., additionalPCI IE, AdditionalPCIIndex IE) to indicate the physical cell identity of the SSB.

[0175] The referenced unified TCI state list (eg, unifiedTCI-StateRef IE) may provide information of the serving cell and UL BWP, which defines the applicable UL TCI state applicable to the UL BWP.

[0176] When the UE is configured with a unified TCI state type indication for the serving cell, the corresponding UL power control configuration (e.g., uplink-powerControl IE) may include power control parameters for PUCCH, PUSCH, and SRS. It should be noted that the corresponding UL power control configuration exists only when UL power control is not configured for any UL TCI state and DLorJoint-TCIState. In other words, if UL power control is configured for any UL TCI state and DLorJoint-TCIState, the UE may not expect to receive the corresponding UL power control configuration in the UL BWP configuration. For example, if the UE has received a list of UL power control configurations to be configured in the serving cell configuration but not in the UL BWP configuration, the UE may not receive the corresponding UL power control configuration in the UL BWP configuration for the same serving cell. Alternatively, if the UE does not receive a list of UL power control configurations to be configured in the serving cell configuration, the UE may (expect to) receive the corresponding UL power configuration in the UL BWP configuration for the same serving cell.

[0177] For UL transmission enhancement, UL power control can be improved by configuring a specific UL power control configuration for each corresponding TRP for the UE. In other words, the UE can apply TRP-specific UL power control to enhance UL data rate and performance. Figure 1 As illustrated, the UE may employ TRP-specific UL power control by applying the corresponding TCI state and power control configuration for each TRP.

[0178] Considering the TRP-specific UL power control in the unified TCI framework, the transmission of PUCCH resources, PUSCH resources and SRS resources associated with the same TRP or with the same UL TCI can apply the same UL power control configuration. Figure 1 As illustrated, the UE may apply a first TCI state and a first UL power control configuration associated with a first TRP to perform a first UL transmission toward a first TRR, and apply a second TCI state and a second UL power control configuration associated with a second TRP to perform a second UL transmission toward a second TRP.

[0179] The UL power control configuration (e.g., the first UL power control configuration or the second UL power control configuration) may include at least one of the following: a UL power control identifier for identifying such UL power control configuration, a P0alpha set configuration for PUCCH, a P0alpha set configuration for PUSCH, or a P0alpha set configuration for SRS. The P0alpha set configuration may include at least one of the following: a P0 value, an alpha value, or a closed-loop index for UL power control of a corresponding channel (e.g., PUCCH, PUSCH) or RS (e.g., SRS).

[0180] In mTRP operation, UL transmissions toward multiple TRPs have corresponding beam directions associated with different TCI states. Each TRP may be associated with a TCI state. The UE may apply a specific TCI state to UL transmissions toward the associated TRP. Therefore, TRP-specific UL power control may also be considered as a TCI state-specific UL power control method.

[0181] The TRP-specific UL power control method may be applied to intra-cell mTRP operation, inter-cell mTRP operation, inter-cell beam management, and / or inter-cell mobility. In the case of mTRP operation (e.g., the UE performs UL transmissions toward more than one TRP (e.g., two TRPs)), the UE may apply specific UL power control for each corresponding TRP.

[0182] For example, the UE may apply a specific UL power control configuration to each corresponding TRP in the same cell. For example, the UE may apply a specific UL power control configuration to a corresponding TRP in one cell and another specific UL power control configuration to another corresponding TRP in another cell. These cells may belong to the same network node or to different network nodes.

[0183] The TRP-specific UL power control method can be used for (but not limited to) inter-cell mTRP operation, inter-cell beam management, and inter-cell mobility. The inter-cell operation can be further classified into two cases: intra-node inter-cell case and inter-node inter-cell case.

[0184] In the intra-cell case, the UE may be served by at least one serving cell, and the at least two cells may belong to the same BS (or network node). In addition, when the UE performs mTRP operation in the intra-cell case, the UE may receive / send signals from / to at least one TRP of the serving cell, and receive / send signals from / to at least one TRP of the same serving cell. For example, when the UE performs mTRP operation in the intra-cell case and the number of TRPs is 2, the UE may receive / send signals from / to one TRP associated with the serving cell, and receive / send signals from / to another TRP associated with the same serving cell.

[0185] In the intra-node inter-cell case, the UE may be served by at least two cells, and the at least two cells may belong to the same BS (or network node). For example, when the UE is capable of performing carrier aggregation, the UE may be connected to the BS (or network) on different component carriers, wherein the UE is served by a serving cell on each component carrier. In addition, when the UE performs mTRP operation in the intra-node inter-cell case, the UE may receive / send signals from / to at least one TRP of the serving cell, and receive / send signals from / to at least one TRP of another serving cell. For example, when the UE performs mTRP operation in the intra-node inter-cell case and the number of TRPs is 2, the UE may receive / send signals from / to one TRP associated with the serving cell, and receive / send signals from / to another TRP associated with another serving cell.

[0186] In the inter-node inter-cell case, the UE may be served by at least two cells, and the at least two cells may belong to different BSs (or network nodes). For example, when the UE may perform multiple connections (e.g., dual connections), the UE may be connected to at least two BSs (or network nodes) on different frequency carriers. The UE may be connected to a primary BS (e.g., a primary network node) on one frequency carrier, wherein the UE is served by at least one serving cell on the frequency carrier. The UE may be simultaneously connected to a secondary BS (e.g., a secondary network node) on another frequency carrier, wherein the UE is served by at least one serving cell on the other frequency carrier. In addition, when the UE performs mTRP operation in the inter-node inter-cell case, the UE may receive / send signals from / to at least one TRP of a serving cell belonging to the primary node, and receive / send signals from / to at least one TRP of another serving cell belonging to the secondary node. For example, when the UE performs mTRP operation in an intra-node inter-cell case and the number of TRPs is 2, the UE may receive / send signals from / to one TRP associated with a service cell belonging to the primary node, and receive / send signals from / to another TRP associated with another service cell belonging to the secondary node.

[0187] When the UE can perform multiple connections and carrier aggregation, the UE can utilize the proposed design for the intra-node inter-cell case and the design for the inter-node inter-cell case simultaneously.

[0188] According to the TRP-specific UL power control method, the UE may receive an UL power control configuration for a (target) serving cell (e.g., cell #2) from another serving cell (e.g., cell #1, a source serving cell). Cell #2 may refer to a target serving cell. Cell #1 may refer to a source serving cell. It is possible that the UE may receive an UL power control configuration for a TRP and another UL power control configuration for another TRP from the same serving cell, wherein the two TRPs are associated with the same serving cell.

[0189] As discussed previously, in Figure 2 In action 202 of , the UE may receive an RRC message from the first TRP, wherein the RRC message may include a UL power control configuration set associated with the second TRP, wherein the UL power control configuration set may include a second UL power control configuration. For example, the UE may receive an RRC message including a UL power control configuration set for a target service cell (e.g., associated with the second TRP) from a source service cell (e.g., associated with the first TRP). Upon / after receiving the RRC message, the UE may apply the UL power control configuration in the UL power control configuration set (e.g., the second UL power control configuration associated with the second TRP) to perform UL transmissions to the target service cell.

[0190] In addition, Figure 2 In action 204, the UE may also receive a MAC CE from one of the first TRP and the second TRP, wherein the MAC CE may indicate to the UE to apply a second UL power control configuration in the UL power control configuration set to perform a second UL transmission. For example, the UE may receive a MAC CE from a source serving cell, wherein the MAC CE is used to indicate to the UE to apply / use a specific UL power control configuration indicated in an RRC message from the source serving cell. If the MAC entity of the UE receives the MAC CE, the MAC entity of the UE may indicate to the lower layer of the UE (e.g., the PHY layer of the UE) to apply information about the MAC CE. For another example, the UE may receive a MAC CE message from a target serving cell. The MAC CE is used to indicate to the UE to apply a specific UL power control configuration indicated in an RRC message from the source serving cell. If the MAC entity of the UE receives the MAC CE, the MAC entity of the UE may indicate to the lower layer of the UE (e.g., the PHY layer of the UE) to apply information about the MAC CE.

[0191] In some specific implementations, the UE may also receive more than one MAC CE from the source serving cell and the target serving cell. Each MAC CE is used to indicate to the UE to apply a specific UL power control configuration indicated in the RRC message from the source serving cell, where the specific UL power control configuration may involve the same or different serving cells. The UE may apply the information indicated by the corresponding MAC CE corresponding to different serving cells.

[0192] In some implementations, the UE may receive a list of UL power control configurations for the target serving cell from the source serving cell (e.g., a list of UL power control configuration sets, where the UL power control configuration set may correspond to (but is not limited to) a reference Figure 2 In the case where the list includes only one UL power control configuration for the target serving cell, the UE (e.g., the RRC layer of the UE, the MAC layer of the UE) may indicate to the lower layer of the UE (e.g., the PHY layer of the UE, the MAC layer of the UE) that the UL power control configuration is applied to the UL transmission corresponding to the target serving cell.

[0193] In some implementations, the UE may receive a UL power control configuration list (e.g., a list of UL power control configuration sets) for the target serving cell and the source serving cell from the source serving cell, where the UL power control configuration set may correspond to (but is not limited to) a reference Figure 2 In the case where the list (only) includes one UL power control configuration for the target serving cell and one UL power control configuration for the source serving cell, the UE (e.g., the RRC layer of the UE, the MAC layer of the UE) may indicate to the lower layers of the UE (e.g., the PHY layer of the UE, the MAC layer of the UE) that the UL power control configuration associated with the target serving cell is applied to the UL transmission corresponding to the target serving cell, and that the UL power control configuration associated with the source serving cell is applied to the UL transmission corresponding to the source serving cell.

[0194] In some implementations, the UE may receive from the target serving cell a UL power control configuration for the target serving cell (eg, a UL power control configuration set, which may correspond to (but is not limited to) a reference Figure 2The UE may receive an RRC message containing an UL power control configuration set (described in the RRC message). Upon / after receiving the RRC message, the UE may apply the UL power control configuration for the target serving cell. The UE may also receive a MAC CE from the source serving cell. The MAC CE is used to indicate to the UE the application of a specific UL power control configuration indicated in the RRC message from the target serving cell. If the MAC entity of the UE receives the MAC CE, the MAC entity of the UE may indicate to the lower layers of the UE (e.g., the PHY layer of the UE) the application of information about the MAC CE. In another example, the UE may receive a MAC CE from the target serving cell, wherein the MAC CE is used to indicate to the UE the application of a specific UL power control configuration indicated in the RRC message from the target serving cell. If the MAC entity of the UE receives the MAC CE, the MAC entity of the UE may indicate to the lower layers of the UE (e.g., the PHY layer of the UE) the application of information about the MAC CE.

[0195] In some implementations, the UE may receive more than one MAC CE from the source serving cell and the target serving cell. Each MAC CE is used to indicate to the UE to apply a specific UL power control configuration indicated in the RRC message from the target serving cell, where the specific UL power control configuration may involve the same or different serving cells. The UE may apply the information indicated by the corresponding MAC CE corresponding to different serving cells.

[0196] In some implementations, the UE may receive a list of UL power control configurations for the target serving cell from the target serving cell. In the case where the list includes only one UL power control configuration for the target serving cell, the UE may indicate to a lower layer of the UE (e.g., a PHY layer of the UE) that the UL power control configuration is to be applied to the UL transmission corresponding to the target serving cell.

[0197] In some specific implementations, the UE receives a list of UL power control configurations for the target serving cell and the source serving cell from the target serving cell. In the case where the list (only) includes one UL power control configuration for the target serving cell and one UL power control configuration for the source serving cell, the UE (e.g., the RRC layer of the UE, the MAC layer of the UE) may indicate to the lower layers of the UE (e.g., the PHY layer of the UE, the MAC layer of the UE) that the UL power control configuration associated with the target serving cell is applied to the UL transmission corresponding to the target serving cell, and the UL power control configuration associated with the source serving cell is applied to the UL transmission corresponding to the source serving cell.

[0198] When the functional separation technique is applied, within a BS (or network node), one central unit (CU) can be connected to several distributed units (DUs). If the functional separation technique is applied to the intra-node inter-cell scenario, the scenario can be further classified into two scenarios: (a) intra-CU intra-DU inter-cell scenario, and (b) intra-CU inter-DU inter-cell scenario.

[0199] In the intra-CU / intra-DU / inter-cell scenario, at least two serving cells may belong to the same DU and the same CU. That is, the UE may apply the same RRC layer, the same PDCP layer, the same RLC layer, the same MAC layer, and the same PHY layer to connect to at least two serving cells.

[0200] In the intra-CU inter-DU inter-cell scenario, at least two serving cells may belong to different DUs but the same CU. That is, the UE may apply the same RRC layer, the same PDCP layer, different RLC layers, different MAC layers and different PHY layers to connect to at least two serving cells.

[0201] The proposed method (e.g., including methods 100, 200, 300, and 400) / the mechanism described in the present disclosure may be applied to intra-cell situations, intra-node inter-cell situations, intra-CU inter-DU situations, and intra-CU intra-DU situations, but is not limited thereto. For example, after the UE determines that the UE is configured with (or deployed in) an intra-cell scenario, an intra-node inter-cell scenario, an intra-CU inter-DU scenario, and / or an intra-CU intra-DU scenario, the UE may perform TRP-specific UL power control implementation and design.

[0202] In some embodiments, the UE may receive an RRC message (e.g., an RRC reconfiguration message) including a UL power control configuration for a target serving cell from a source serving cell (or from a target serving cell) during RRC reconfiguration, after RRC connection establishment, after RRC connection restoration, during SCell addition / modification / release, and / or during handover.

[0203] The UL power control configuration for the target serving cell may be included in the serving cell configuration, wherein the serving cell configuration includes the serving cell identifier / index of the target serving cell. For example, if the target serving cell is a PCell for the UE, the serving cell configuration may be included in the PCell configuration. For example, if the target serving cell is an SCell for the UE, the serving cell configuration may be included in the SCell configuration. The RRC message may include a PCell configuration, an SCell configuration, a serving cell configuration, and / or a UL power control configuration for the target serving cell. If the UL power control configuration for the target serving cell is included in the serving cell configuration instead of the UL BWP configuration, the UL power control configuration for the target serving cell may be cell-specific.

[0204] The UL power control configuration for the target serving cell may be included in the UL BWP configuration, where the UL BWP configuration is associated with the serving cell identifier / index of the target serving cell. The UL BWP configuration may be included in the serving cell configuration. For example, if the target serving cell is a PCell for the UE, the serving cell configuration may be included in the PCell configuration. For example, if the target serving cell is an SCell for the UE, the serving cell configuration may be included in the SCell configuration. The RRC message may include the PCell configuration, the SCell configuration, the serving cell configuration, the UL BWP configuration and / or the UL power control configuration for the target serving cell. If the UL power control configuration for the target serving cell is included in the UL BWP configuration, the UL power control configuration for the target serving cell may be BWP specific.

[0205] In some specific implementations, the UE may receive an RRC message (e.g., an RRC (connection) establishment message) from a source serving cell (or from a target serving cell) during an RRC connection establishment procedure that includes an UL power control configuration for the target serving cell. Specifically, the RRC message (e.g., an RRC (connection) establishment message) may not include a complete UL power control configuration for the target serving cell. The RRC message (e.g., an RRC (connection) establishment message) may include a portion of the UL power control configuration for the target serving cell.

[0206] In some implementations, the UE may receive an RRC message (e.g., an RRC (Connection) Recovery message) including an UL power control configuration for the target serving cell from the source serving cell (or from the target serving cell) during the RRC connection recovery procedure. Specifically, the RRC message (e.g., the RRC (Connection) Recovery message) may not include the complete UL power control configuration for the target serving cell. The RRC message (e.g., the RRC (Connection) Recovery message) may include a portion of the UL power control configuration for the target serving cell.

[0207] In some implementations, after the UE receives an RRC message (e.g., an RRC reconfiguration message, an RRC (connection) establishment message, an RRC (connection) recovery message), the UE may apply and / or configure the UL power control configuration for the target serving cell (if any).

[0208] In some implementations, after the UE receives an RRC message (e.g., an RRC reconfiguration message, an RRC (connection) establishment message, an RRC (connection) recovery message), the UE may apply and / or configure a portion of the UL power control configuration for the target serving cell (if any).

[0209] In another specific implementation, after the UE receives an RRC message (e.g., an RRC reconfiguration message, an RRC (connection) establishment message, an RRC (connection) recovery message), the UE may further determine whether the UE is in an RRC_CONNECTED state and whether a timer (e.g., T311) is running. If the UE determines that the UE is in RRC_CONNECTED and the timer is not running, the UE may further apply and / or configure a configuration included in the serving cell group configuration.

[0210] In another specific implementation, after the UE receives an RRC message (e.g., an RRC reconfiguration message, an RRC (connection) establishment message, an RRC (connection) recovery message), the UE may further determine whether the UE is in an RRC_CONNECTED state and whether a timer (e.g., T311) is running. If the UE determines that the UE is in RRC_CONNECTED and the timer is not running, the UE may further configure UL power control for a target serving cell (if any).

[0211] In another specific implementation, after the UE receives an RRC message (e.g., an RRC reconfiguration message, an RRC (connection) establishment message, an RRC (connection) recovery message), the UE may further determine whether the UE is in an RRC_CONNECTED state and whether a timer (e.g., T311) is running. If the UE determines that the UE is in RRC_CONNECTED and the timer is not running, the UE may further apply and / or configure a portion of the UL power control configuration for the target serving cell (if any).

[0212] In some implementations, upon / after the UE receives an RRC message including (a portion of) a UL power control configuration for a target serving cell, the UE may apply and / or configure the received (a portion of) the UL power control configuration for the target serving cell for the UL TCI state associated with the target serving cell. The (a portion of) the UL power control configuration for the target serving cell may be cell-specific or BWP-specific.

[0213] In some specific implementations, the UL power control configuration (part) for the target serving cell may be associated with the serving cell ID of the target serving cell or with the serving cell index of the target serving cell. The serving cell ID may be a physical cell ID. The serving cell index may be a positive integer, for example, from 1 to 3 / 4 / 7 / 8 / 15 / 16 / 31 / 32. It should be noted that the serving cell ID of the target serving cell or the serving cell index of the target serving cell may be included in the UL BWP configuration or the serving cell configuration, but is not limited thereto. For example, the UL power control configuration (part) for the target serving cell and the serving cell ID of the target serving cell may be in the same IE and in the same RRC message. For example, the UL power control configuration (part) for the target serving cell and the serving cell index of the target serving cell may be in the same IE and in the same RRC message. For example, the UL power control configuration (part) for the target serving cell and the serving cell ID of the target serving cell may be in different IEs but in the same RRC message. For example, the UL power control configuration (part) for the target serving cell and the serving cell index of the target serving cell may be in different IEs but in the same RRC message.

[0214] In some specific implementations, (a portion of) the UL power control configuration for the target service cell may be associated with the physical cell ID of the target service cell or with an additional PCI index (e.g., AdditionalPCIIndex IE) for the target service cell. In addition, (a portion of) the UL power control configuration for the target service cell may be associated with the service cell ID of the source service cell that sends the RRC message. The additional PCI index may be a positive integer, for example, from 1 to 3 / 7 / 15 / 31. It should be noted that the physical cell ID of the target service cell or the additional PCI of the target service cell may be included in the UL BWP configuration, the service cell configuration, the UL TCI information, or the DLorJoint TCI information, but is not limited thereto. For example, (a portion of) the UL power control configuration for the target service cell and the service cell ID of the source service cell may be in the same IE and in the same RRC message. For example, (a portion of) the UL power control configuration for the target service cell and the service cell ID of the source service cell may be in different IEs but in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the physical cell ID of the target serving cell may be in the same IE and in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the additional PCI index of the target serving cell may be in the same IE and in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the physical cell ID of the target serving cell may be in different IEs but in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the additional PCI index of the target serving cell may be in different IEs but in the same RRC message.

[0215] In some specific implementations, (a portion of) the UL power control configuration for the target serving cell may be associated with the UL TCI state information (e.g., ul-TCI-StateList IE) of the target serving cell and / or associated with the UL TCI state configuration (e.g., TCI-UL-State IE) of the target serving cell, for example, particularly when the UE is configured with a "separate" unified TCI state type by the network node. For example, (a portion of) the UL power control configuration for the target serving cell and the UL TCI state information of the target serving cell may be in the same IE and in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the UL TCI state configuration of the target serving cell may be in the same IE and in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the UL TCI state configuration of the target serving cell may be in different IEs but in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the UL TCI state configuration of the target serving cell may be in different IEs but in the same RRC message.

[0216] In some specific implementations, (a portion of) the UL power control configuration of the target serving cell may be associated with the DLorJoint TCI state information of the target serving cell (e.g., dl-orJoint-TCI-ToAddModList IE) and / or associated with the DLorJoint TCI state configuration of the target serving cell (e.g., DLorJoint-TCIState IE), for example, in particular when the UE is configured with a "joint" unified TCI state type by the network node. For example, (a portion of) the UL power control configuration for the target serving cell and the DLorJoint TCI state information of the target serving cell may be in the same IE and in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the DLorJoint TCI state configuration of the target serving cell may be in the same IE and in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the DLorJoint TCI state configuration of the target serving cell may be in the same IE and in the same RRC message. For example, (a portion of) the UL power control configuration for the target serving cell and the DLorJoint TCI state information of the target serving cell may be in different IEs but in the same RRC message. For example, (part of) the UL power control configuration for the target serving cell and the DLorJoint TCI state configuration of the target serving cell may be in different IEs but in the same RRC message.

[0217] In some implementations, (a portion of) the UL power control configuration for the target serving cell may be associated with the UL TCI state information (e.g., ul-TCI-StateList IE) of the source serving cell and / or associated with the UL TCI state configuration (e.g., TCI-UL-State IE) of the source serving cell, for example, in particular when the UE is configured with a "separate" unified TCI state type by the network node. In some implementations, the UE may (by default) apply and / or configure the UL TCI state information of the source serving cell for the UL TCI state information of the target serving cell. The UE may (by default) apply and / or configure the UL TCI state configuration of the source serving cell for the UL TCI state configuration of the target serving cell. There may be an implicit association between the UL TCI state information of the source serving cell and the UL TCI state information of the target serving cell. There may be an implicit association between the UL TCI state configuration of the source serving cell and the UL TCI state configuration of the target serving cell. For example, when the UL TCI state information (e.g., ul-TCI-StateList IE) of the source serving cell and / or the UL TCI state configuration (e.g., a list of UL TCI state configurations, TCI-UL-State IE) of the source serving cell (only) includes one UL TCI state configuration, the UE may apply and / or configure the UL TCI state configuration for the target serving cell. In addition, (a portion of) the UL power control configuration for the target serving cell may be associated with the UL TCI state configuration. For example, when the UL TCI state information (e.g., ul-TCI-StateList IE) of the source serving cell and / or the UL TCI state configuration (e.g., a list of UL TCI state configurations, TCI-UL-State IE) of the source serving cell (only) includes two UL TCI state configurations (one for the source serving cell and the other for the target serving cell), the UE may apply and / or configure the UL TCI state configuration for the target serving cell. In addition, (a portion of) the UL power control configuration for the target serving cell may be associated with the UL TCI state configuration for the target serving cell.

[0218] In some specific implementations, after receiving an explicit indication from the source serving cell or the target serving cell, the UE may apply and / or configure the UL TCI state information of the source serving cell for the UL TCI state information of the target serving cell. In another specific implementation, after receiving an explicit indication from the source serving cell or the target serving cell, the UE may apply and / or configure the UL TCI state configuration of the source serving cell for the UL TCI state configuration of the target serving cell. For example, the UL power control configuration (part of) the target serving cell and the UL TCI state information of the source serving cell may be in the same IE and in the same RRC message. For example, the UL power control configuration (part of) the target serving cell and the UL TCI state configuration of the source serving cell may be in the same IE and in the same RRC message. For example, the UL power control configuration (part of) the target serving cell and the UL TCI state configuration of the source serving cell may be in different IEs but in the same RRC message. For example, the UL power control configuration (part of) the target serving cell and the UL TCI state configuration of the source serving cell may be in different IEs but in the same RRC message.

[0219] In some implementations, (a portion of) the UL power control configuration of the target serving cell may be associated with the DLorJoint TCI state information (e.g., dl-orJoint-TCI-ToAddModList IE) of the source serving cell and / or associated with the DLorJoint TCI state configuration (e.g., DLorJoint-TCIState IE) of the source serving cell, for example, in particular when the UE is configured with a "joint" unified TCI state type by the network node. In some implementations, the UE may (by default) apply and / or configure the DLorJoint TCI state information of the source serving cell for the UL TCI state information of the target serving cell. The UE may (by default) apply and / or configure the DLorJoint TCI state configuration of the source serving cell for the UL TCI state configuration of the target serving cell. There may be an implicit association between the DLorJoint TCI state information of the source serving cell and the DLorJointTCI state information of the target serving cell. There may be an implicit association between the DLorJoint TCI state configuration of the source serving cell and the DLorJoint TCI state configuration of the target serving cell. For example, when the DLorJoint TCI state information (e.g., dl-orJoint-TCI-ToAddModList IE) of the source serving cell and / or the DLorJoint TCI state configuration (e.g., a list of DLorJoint TCI state configurations) of the source serving cell (only) includes one DLorJoint TCI state configuration, the UE may apply and / or configure the DLorJoint TCI state configuration for the target serving cell. In addition, (a portion of) the UL power control configuration for the target serving cell may be associated with the DLorJoint TCI state configuration. For example, when the DLorJoint TCI state information (e.g., dl-orJoint-TCI-ToAddModList IE) of the source serving cell and / or the DLorJoint TCI state configuration (e.g., a list of DLorJoint TCI state configurations) of the source serving cell (only) includes two DLorJointTCI state configurations (one for the source serving cell and the other for the target serving cell), the UE may apply and / or configure the DLorJoint TCI state configuration for the target serving cell. In addition, (a portion of) the UL power control configuration for the target serving cell may be associated with the DLorJoint TCI state configuration for the target serving cell.

[0220] In some specific implementations, after receiving an explicit indication from the source serving cell or the target serving cell, the UE may apply and / or configure the DLorJoint TCI state information of the source serving cell for the DLorJoint TCI state information of the target serving cell. In another specific implementation, after receiving an explicit indication from the source serving cell or the target serving cell, the UE may apply and / or configure the DLorJoint TCI state configuration of the source serving cell for the DLorJoint TCI state configuration of the target serving cell. For example, the UL power control configuration (part of) the target serving cell and the DLorJoint TCI state information of the source serving cell may be in the same IE and in the same RRC message. For example, the UL power control configuration (part of) the target serving cell and the DLorJoint TCI state configuration of the source serving cell may be in the same IE and in the same RRC message. For example, the UL power control configuration (part of) the target serving cell and the DLorJoint TCI state information of the source serving cell may be in different IEs but in the same RRC message. For example, (part of) the UL power control configuration for the target serving cell and the DLorJoint TCI state configuration of the source serving cell may be in different IEs but in the same RRC message.

[0221] In some specific implementations, the UE may (by default), for example, implicitly apply and / or configure (a portion of) the UL power control configuration for the source serving cell for (a portion of) the UL power control configuration for the target serving cell. For example, when / after the UE receives (a portion of) the UL power control configuration for the source serving cell, the UE may apply the received (a portion of) the UL power control configuration for the source serving cell for the target serving cell. For example, if (a portion of) the UL power control configuration for the source serving cell (only) includes one UL power control configuration, the UE may apply the UL power control configuration for the target serving cell. For example, if (a portion of) the UL power control configuration for the source serving cell (only) includes two UL power control configurations (e.g., one of the two UL power control configurations is used for the source serving cell and the other of the two UL power control configurations is used for the target serving cell), the UE may apply the other of the two UL power control configurations for the target serving cell to the target serving cell.

[0222] In some specific implementations, after the UE receives an explicit indication from the source serving cell or the target serving cell, the UE may, for example, explicitly apply and / or configure (a portion of) the UL power control configuration for the source serving cell for (a portion of) the UL power control configuration for the target serving cell.

[0223] In some specific implementations, after the UE receives (a portion of) the UL power control configuration from the source serving cell, the UE may, for example, explicitly apply and / or configure (a portion of) the UL power control configuration for the source serving cell for (a portion of) the UL power control configuration for the target serving cell.

[0224] In some implementations, the power control configuration list configured by the RRC message from the source serving cell or the target serving cell may include both the power control configuration associated with the source serving cell and the power control configuration associated with the target serving cell. The source serving cell may be identified by a PCI of the serving cell, a serving cell ID, etc. The target serving cell may be identified by a PCI different from the PCI of the serving cell, a PCI index, etc.

[0225] In some implementations, (a portion of) the UL power control configuration for the target serving cell may be BWP specific for the UE. For example, (a portion of) the UL power control configuration for the target serving cell may be associated with the (UL)BWP ID of the target serving cell. The UE may apply and / or configure (a portion of) the UL power control configuration for the target serving cell for the corresponding UL BWP indicated by the (UL)BWP ID. The (UL)BWP ID of the target serving cell and (a portion of) the UL power control configuration for the target serving cell may be in the same IE and the same message. The (UL)BWPID of the target serving cell and (a portion of) the UL power control configuration for the target serving cell may be in different IEs but in the same message. The UL power control configuration for the target serving cell may be included in a UL-dedicated BWP IE in an RRC message. The UE may apply and / or configure (a portion of) the UL power control configuration for the target serving cell for the corresponding UL BWP indicated by the UL-dedicated BWP IE.

[0226] In some implementations, (a portion of) the UL power control configuration for the target serving cell may be cell-specific for the UE. For example, (a portion of) the UL power control configuration for the target serving cell may be associated with the cell ID (or cell index) of the target serving cell or associated with the PCI (or additional PCI index) of the target serving cell. The UE may apply and / or configure (a portion of) the UL power control configuration for the target serving cell for the corresponding target serving cell indicated by the cell ID (or cell index) of the target serving cell or the PCI (or additional PCI index) of the target serving cell.

[0227] In some implementations, if the UE has already received, applied and / or configured (a portion of) a BWP-specific UL power control configuration for a target serving cell, the UE may not expect to receive, apply and / or configure (a portion of) a cell-specific UL power control configuration for a target serving cell.

[0228] In some implementations, if the UE has received, applied, and / or configured (a portion of) a cell-specific UL power control configuration for a target serving cell, once the UE receives (a portion of) a BWP-specific UL power control configuration for the target serving cell, the UE may apply (a portion of) the received BWP-specific UL power control configuration for the target serving cell and / or release (a portion of) the cell-specific UL power control configuration for the target serving cell. In some implementations, if the UE has received, applied, and / or configured (a portion of) a cell-specific UL power control configuration for a target serving cell, once the UE receives (a portion of) a BWP-specific UL power control configuration for the target serving cell, the UE may replace (a portion of) the received BWP-specific UL power control configuration for the target serving cell with (a portion of) the cell-specific UL power control configuration for the target serving cell.

[0229] In some specific implementations, if the UE has already received, applied and / or configured (part of) a cell-specific UL power control configuration for a target service cell, once the UE receives (part of) another cell-specific UL power control configuration for the target service cell, the UE may apply and / or configure the newly received cell-specific UL power control configuration for the target service cell (part of it) and / or release the previously received, applied and / or configured cell-specific UL power control configuration for the target service cell (part of it).

[0230] In some specific implementations, if the UE has already received, applied and / or configured (a portion of) a BWP-specific UL power control configuration for a target service cell, once the UE receives (a portion of) the BWP-specific UL power control configuration for the target service cell, the UE may apply and / or configure the newly received (a portion of) the BWP-specific UL power control configuration for the target service cell and / or release the previously received, applied and / or configured (a portion of) the BWP-specific UL power control configuration for the target service cell.

[0231] In some specific implementations, if the UE has already received, applied and / or configured (a portion of) a BWP-specific UL power control configuration for a target serving cell, then once the UE receives (a portion of) a cell-specific UL power control configuration for the target serving cell, the UE may ignore the newly received cell-specific UL power control configuration for the target serving cell.

[0232] In some implementations, after the UE receives a MAC CE for UL power control update / activation for the target serving cell, the UE may indicate information about the MAC CE for UL power control update for the target serving cell to a lower layer of the MAC layer of the UE.

[0233] In some implementations, if the MAC entity of the UE receives a MAC CE for UL power control update for the target serving cell on the source serving cell, the MAC entity of the UE may indicate information about the MAC CE for UL power control update for the target serving cell to the lower layer of the UE (e.g., the PHY layer of the UE). Specifically, when the UE processes the source serving cell and the target serving cell by using the same MAC entity and the same PHY layer, the UE applies this implementation. Specifically, when the UE operates / configured in an intra-CU intra-DU inter-cell scenario, the UE applies this implementation.

[0234] In some implementations, if the MAC entity of the UE receives a MAC CE for UL power control update for the target service cell on the source service cell, the MAC entity of the UE may indicate to the upper layer of the UE (e.g., the RRC layer of the UE) that an UL power control update for the target service cell is required / triggered. Specifically, when the UE handles the source service cell and the target service cell by using different MAC entities and different PHY layers, the UE applies this implementation. Specifically, when the UE operates / configured in an intra-CU inter-DU inter-cell scenario, the UE applies this implementation.

[0235] In some specific implementations, if the MAC entity of the UE receives a MAC CE for UL power control update for the target service cell on the source service cell, the MAC entity of the UE may determine the MAC CE content. If the UE determines that the MAC CE is applied to the target service cell, for example by determining the service cell identification field in the MAC CE, the MAC entity of the UE may indicate to the upper layer of the UE (e.g., the RRC layer of the UE) that an UL power control update for the target service cell is required / triggered. Specifically, when the UE handles the source service cell and the target service cell by using different MAC entities and different PHY layers, the UE applies this specific implementation. Specifically, when the UE operates / configured in an intra-CU inter-DU inter-cell scenario, the UE applies this specific implementation.

[0236] In some specific implementations, when / after the upper layer of the UE receives the indication, the upper layer of the UE may request the network to send an RRC message including a MAC CE for UL power control configuration and / or UL power control update for the target serving cell. Specifically, the UE may request the target serving cell to provide a MAC CE for UL power control update for the target serving cell.

[0237] In some specific implementations, if the UE determines that the MAC CE is applied to the target serving cell, for example by determining the serving cell identification field in the MAC CE, the MAC entity of the UE may provide the necessary information for the UL power control update for the target serving cell in the MAC CE to the upper layer of the UE (e.g., the RRC layer of the UE).

[0238] In some specific implementations, if the MAC entity of the UE receives a MAC CE for UL power control update for the target service cell on the target service cell, the MAC entity of the UE may indicate information about the MAC CE for UL power control update for the target service cell to the lower layer of the UE (e.g., the PHY layer of the UE). Specifically, when the UE processes the source service cell and the target service cell by using the same MAC entity and the same PHY layer, the UE applies this specific implementation. Specifically, when the UE operates / configured in an intra-CU, intra-DU, inter-cell scenario, the UE applies this specific implementation. Specifically, when the UE processes the source service cell and the target service cell by using different MAC entities and different PHY layers, the UE applies this specific implementation. Specifically, when the UE operates / configured in an intra-CU, inter-DU, inter-cell scenario, the UE applies this specific implementation.

[0239] In some implementations, the MAC CE for the UL power control update for the target serving cell may be identified by a MAC subheader with an eLCID (Extended Logical Channel Identifier). It should be noted that the eLCID field identifies the logical channel instance of the corresponding MAC SDU for DL-SCH and UL-SCH or the type of the corresponding MAC CE, respectively. The size of the eLCID field is 8 bits or 16 bits, but is not limited thereto.

[0240] In some specific implementations, the MAC CE for the UL power control update of the target service cell may include fields such as (but not limited to) a service cell index (or service cell ID), an additional PCI index, a BWP ID, a UL TCI state identifier identifying the corresponding UL TCI state, a DLorJoint TCI state identifier identifying the corresponding DLorJoint TCI state, a UL power control identifier identifying the corresponding UL power control configuration, a control bit indicating whether a single or two UL power control configurations are updated for subsequent TCI states, an indication indicating whether the UL TCI state or the DLorJoint TCI state is applied, and a reserved bit.

[0241] For example, the length of the serving cell index (or serving cell ID) field may be several bits (e.g., 2 bits, 3 bits, 4 bits, or 5 bits). The serving cell index (or serving cell ID) field may indicate the serving cell index (or serving cell ID) of the target serving cell associated with the MAC CE. The fields in the MAC CE may apply to the target serving cell associated with the MAC CE. If this field is not present, the fields in the MAC CE may apply to the serving cell from which the UE received the MAC CE. It should be noted that the serving cell index (or serving cell ID) field may correspond to the serving cell ID or serving cell index associated with the UL power control configuration received in the RRC message.

[0242] For example, the length of the additional PCI index field may be several bits (e.g., 2 bits, 3 bits, 4 bits, or 5 bits). The additional PCI index may indicate the target serving cell associated with the MAC CE. The fields in the MAC CE may be applicable to the target serving cell associated with the MAC CE. In some implementations, the additional PCI index field exists when the serving cell ID (or serving cell index) does not indicate the target serving cell; otherwise, the additional PCI index field does not exist. In some implementations, the additional PCI index field exists when the serving cell ID (or serving cell index) indicates the source serving cell; otherwise, the additional PCI index field does not exist. In some implementations, the additional PCI index field exists when the UE receives the additional PCI index associated with the UL power control configuration in the RRC message; otherwise, the additional PCI index field does not exist. In some implementations, if the additional PCI index field does not exist and the serving cell ID (or serving cell index) field does not exist, the fields in the MAC CE may be applied to the serving cell from which the UE receives the MAC CE. It should be noted that the additional PCI index field may correspond to an additional PCI index associated with a UL power control configuration received in the RRC message.

[0243] For example, the length of the BWP ID field may be 2 bits, but is not limited thereto. The BWP ID may indicate the corresponding BWP to which the update of the UL power control configuration is applied. If this field does not exist, the update of the UL power control configuration may be applied to the cell indicated by the serving cell ID (or serving cell index) field and / or the additional PCI index field. It should be noted that the BWP ID field may correspond to the (UL) BWP ID or the UL dedicated BWP IE associated with the UL power control configuration received in the RRC message.

[0244] For example, the UL TCI state identification field may indicate the UL TCI state of the target serving cell to update the UL power control configuration indicated in the MAC CE. The UL TCI state identification field may be associated with one or two UL power control configurations indicated in the MAC CE. It should be noted that the UL TCI state identification may be one of the UL TCI state identification received by the UE in the RRC message including the UL power control configuration and / or the UL TCI state identification applied and / or configured by the UE based on the RRC message including the UL power control configuration. It should be noted that the UL TCI state identification field may correspond to more than one UL TCI state of the serving cell, and more than one UL power control configuration may correspond to more than one UL TCI state.

[0245] For example, the DLorJoint TCI state identification field may indicate the UL TCI state of the target serving cell to update the UL power control configuration indicated in the MAC CE. The DLorJoint TCI state identification field may be associated with one or two UL power control configurations indicated in the MAC CE. It should be noted that the DLorJoint TCI state identification may be one of the DLorJoint TCI state identification received by the UE in the RRC message including the UL power control configuration and / or the DLorJoint TCI state identification applied and / or configured by the UE based on the RRC message including the UL power control configuration. It should be noted that the DLorJoint TCI state identification field may correspond to more than one DLorJoint TCI state of the serving cell.

[0246] For example, the UL power control identification field may indicate a UL power control configuration updated for the corresponding serving cell, BWP and / or TCI state indicated in the MAC CE. It should be noted that the UL power control identification in the UL power control identification field may be one of the UL power control identification received by the UE in the RRC message including the UL power control configuration and / or the UL power control identification applied and / or configured by the UE based on the RRC message including the UL power control configuration. In some specific implementations, a single UL power control identification field is associated with the corresponding UL TCI state field. In some specific implementations, two UL power control identification fields are associated with the corresponding UL TCI state field. In some specific implementations, the UE may determine whether a single or two UL power control identification fields are associated with the corresponding UL TCI state field based on the control bit field. In some specific implementations, a single UL power control identification field is associated with the corresponding DLorJoint TCI state field. In some specific implementations, two UL power control identification fields are associated with the corresponding DLorJoint TCI state field. In some implementations, the UE may determine whether a single or two UL power control identification fields are associated with the corresponding DLorJoint TCI status field based on the control bit field. In some implementations, the UL power control identification field is mandatory in the MAC CE. In some implementations, the UL power control identification field may correspond to the UL power control configuration list index.

[0247] For example, the control bit field may indicate whether a single or two UL power control configurations are updated for the corresponding TCI state. The corresponding TCI state may be indicated by the UL TCI state identification field or by the DLorJoint TCI state identification field. In some specific implementations, if the control bit field is "1", the control bit field may indicate that two UL power control configurations are updated for the corresponding TCI state. For example, there is a second UL power control identification field. In some specific implementations, if the control bit field is "0" or does not exist, the control bit field may indicate that a single UL power control configuration is updated for the corresponding TCI state. For example, there is no second UL power control identification field.

[0248] For example, the indication field may indicate whether the UL TCI state flag or the DLorJoint TCI state flag is to be applied to the UL TCI state field (e.g., UL TCI state flag field, DLorJoint TCI state flag field) to indicate the UL TCI in the MAC CE. In some implementations, if the indication is "1", the indication may indicate that the UL TCI state flag field is applied to indicate the UL TCI state in the MAC CE. In some implementations, if the indication is "1", the indication may indicate that the UL TCI state flag field is applied to indicate the UL TCI state associated with the corresponding UL power control flag field in the MAC CE. In some implementations, if the indication is "0" or does not exist, the indication may indicate that the DLorJoint TCI state flag field is applied to indicate the UL TCI state in the MAC CE. In some implementations, if the indication is "0" or does not exist, the indication may indicate that the DLorJoint TCI state flag field is applied to indicate the UL TCI state associated with the corresponding UL power control flag field in the MAC CE. Alternatively, in some implementations, if the indication is "1", the indication may indicate that the DLorJoint TCI state identification field is applied to indicate the UL TCI state in the MAC CE. In some implementations, if the indication is "1", the indication may indicate that the UL TCI state identification field is applied to indicate the DLorJoint TCI state associated with the corresponding UL power control identification field in the MAC CE. In some implementations, if the indication is "0" or does not exist, the indication may indicate that the UL TCI state identification field is applied to indicate the UL TCI state in the MAC CE. In some implementations, if the indication is "0" or does not exist, the indication may indicate that the UL TCI state identification field is applied to indicate the UL TCI state associated with the corresponding UL power control identification field in the MAC CE. There may be several reserved bit fields in the MAC CE.

[0249] When / after the UE receives the MAC CE, the UE can determine the UL power control configuration to be updated for the corresponding service cell (especially the target service cell), the corresponding BWP and / or the corresponding UL TCI state based on the fields in the MAC CE and / or the service cell from which the UE receives the MAC CE.

[0250] like Figure 1As described in action 102, the UE may apply (e.g., select and / or use) a first TCI state and a first UL power control configuration associated with the first TRP to perform a first UL transmission toward the first TRP. In some specific implementations, the UE may perform a first UL transmission (e.g., including PUCCH transmission, PUSCH transmission, SRS transmission) toward the first TRP (e.g., associated with the source serving cell) by applying the first UL power control configuration. The UE may perform a first UL transmission (e.g., including PUCCH transmission, PUSCH transmission, SRS transmission) using a first TCI state associated with the source serving cell by applying the first UL power control configuration, where the first TCI state may be a UL TCI state or a joint TCI state.

[0251] The UL power control configuration for PUCCH transmission may be included in the first UL power control configuration. Specifically, if the UE performs PUCCH transmission, the UE may apply the UL power control configuration for PUCCH transmission in the first UL power control configuration. Additionally or alternatively, the UL power control configuration for PUSCH transmission may be included in the first UL power control configuration. Specifically, if the UE performs PUSCH transmission, the UE may apply the UL power control configuration for PUSCH transmission in the first UL power control configuration. Additionally or alternatively, the UL power control configuration for SRS transmission may be included in the first UL power control configuration. Specifically, if the UE performs SRS transmission, the UE may apply the UL power control configuration for SRS transmission in the first UL power control configuration. Additionally or alternatively, the first UL power control configuration may be indicated by the UL power control identification field in the MAC CE.

[0252] The first (UL) TCI state may be indicated in a UL TCI state identification field or a DLorJoint TCI state identification field in a MAC CE. The first (UL) TCI state may be associated with a first UL power control configuration.

[0253] If the power control parameter configuration list includes only one power control configuration corresponding to the source serving cell, the first UL power control configuration may be indicated by the first power control configuration in the list of power control configurations configured through the RRC message (e.g., the power control configuration corresponding to the source serving cell). The first UL power control configuration may be indicated by a DCI field or a specific DCI format for scheduling the corresponding UL transmission.

[0254] On the other hand, Figure 1As described in action 104 of , the UE may apply a second TCI state associated with the second TRP and a second UL power control configuration to perform a second UL transmission toward the second TRP. In some specific implementations, the UE may perform a second UL transmission (e.g., including PUCCH transmission, PUSCH transmission, SRS transmission) toward a second TRP (e.g., associated with a target serving cell) by applying a second UL power control configuration. For example, the UE may perform a second UL transmission (e.g., including PUCCH transmission, PUSCH transmission, SRS transmission) using a second TCI state associated with a target serving cell by applying a second UL power control configuration, where the second TCI state may be a UL TCI state or a joint TCI state.

[0255] The UL power control configuration for PUCCH transmission may be included in the second UL power control configuration. Specifically, if the UE performs PUCCH transmission, the UE may apply the UL power control configuration for PUCCH transmission in the second UL power control configuration. Additionally or alternatively, the UL power control configuration for PUSCH transmission may be included in the second UL power control configuration. Specifically, if the UE performs PUSCH transmission, the UE may apply the UL power control configuration for PUSCH transmission in the second UL power control configuration. Additionally or alternatively, the UL power control configuration for SRS transmission may be included in the second UL power control configuration. Specifically, if the UE performs SRS transmission, the UE may apply the UL power control configuration for SRS transmission in the second UL power control configuration.

[0256] In some implementations, the second UL power control configuration may be indicated by a UL power control identification field in a MAC CE. The second (UL) TCI state may be indicated in a UL TCI state identification field or a DLorJoint TCI state identification field in a MAC CE. The second (UL) TCI state may be associated with the second UL power control configuration.

[0257] In some implementations, if the power control parameter configuration list includes only one power control configuration corresponding to the target serving cell, the first UL power control configuration may be indicated by a second power control configuration (e.g., a power control configuration corresponding to the target serving cell) in the list of power control configurations configured via an RRC message. In some implementations, the first UL power control configuration may be indicated by a DCI field or a specific DCI format for scheduling the corresponding UL transmission.

[0258] In some implementations, the first (UL) TCI state and the second (UL) TCI state may be the same. For the target serving cell, the UE may apply the first (UL) TCI state indicated in the MAC CE for the source serving cell. Alternatively, for the source serving cell, the UE may apply the second (UL) TCI state indicated in the MAC CE for the target serving cell.

[0259] In some implementations, the first UL power control configuration and the second UL power control configuration may be the same. For the target serving cell, the UE may apply the first UL power control configuration indicated in the MAC CE for the source serving cell. Alternatively, for the source serving cell, the UE may apply the second UL power control configuration indicated in the MAC CE for the target serving cell.

[0260] In some implementations, the UE may simultaneously perform a first UL transmission toward a first TRP (e.g., associated with a source serving cell) and a second UL transmission toward a second TRP (e.g., associated with a target serving cell). In some implementations, the UE may simultaneously perform an UL transmission by using a first (UL) TCI state associated with the source serving cell and simultaneously perform an UL transmission by using a second (UL) TCI state associated with the target serving cell.

[0261] The following content provides additional explanations of the various specific embodiments presented in this disclosure.

[0262] The terms network (NW), cell, camping cell, serving cell, BS, gNB, eNB, and ng-eNB may be used interchangeably. Some of these items may or may not refer to the same network entity.

[0263] The RAT may be (but not limited to) NR, LTE, E-UTRA connected to 5GC, LTE connected to 5GC, E-UTRA connected to EPC, and LTE connected to EPC. The proposed mechanism may be applied to UEs in public networks or private networks (e.g., NPN (non-public network, SNPN (standalone NPN), PNI-NPN (public network integrated NPN)).

[0264] The proposed mechanism can be used for licensed frequencies and / or unlicensed frequencies.

[0265] System information (SI) may refer to MIB, SIB1 and other SI. Minimum SI may include MIB and SIB1. Other SI may refer to SIB3, SIB4, SIB5 and other SIBs.

[0266] Dedicated signaling may refer to (but is not limited to) RRC messages. For example, RRC (connection) establishment request message, RRC (connection) establishment message, RRC (connection) establishment complete message, RRC (connection) reconfiguration message, RRC connection reconfiguration message including mobility control information, RRC connection reconfiguration message without internal mobility control information, RRC reconfiguration message including configuration with synchronization, RRC reconfiguration message without internal configuration with synchronization, RRC (connection) reconfiguration complete message, RRC (connection) recovery request message, RRC (connection) recovery message, RRC (connection) recovery complete message, RRC (connection) reestablishment request message, RRC (connection) reestablishment message, RRC (connection) repair complete message, RRC (connection) rejection message, RRC (connection) release message, RRC system information request message, UE assistance information message, UE capability inquiry message and UE capability information message.

[0267] RRC_CONNECTED UE, RRC_INACTIVE UE and RRC_IDLE UE can apply the proposed implementation.

[0268] An RRC_CONNECTED UE may be configured with an active BWP with a common search space configured to monitor system information or paging.

[0269] An RRC_CONNECTED UE configured with ICBM may be configured with an active BWP on the serving cell with a common search space configured to monitor system information or paging from the serving cell.

[0270] An RRC_CONNECTED UE configured with ICBM may be configured with an active BWP on the target serving cell with a common search space configured to monitor system information or paging from the target serving cell.

[0271] The UE may be served by a cell (eg, a serving cell). The serving cell may serve (but is not limited to) an RRC_CONNECTED UE. The serving cell may be (but is not limited to) a suitable cell.

[0272] The UE may camp on a cell, such as a camped cell. The camped cell may be a suitable cell or an acceptable cell.

[0273] A suitable cell is a cell that the UE can camp on. The UE may consider a cell to be suitable if the following conditions are met: (1) the cell is part of the selected PLMN or the registered PLMN or a PLMN in the equivalent PLMN list, and (2) the cell criteria for the cell are met. In addition, according to the latest information provided by the NAS, the suitable cell is not prohibited. A suitable cell is part of at least one TA that is not part of the list of "prohibited tracking areas" and belongs to a PLMN that meets condition (1).

[0274] The target serving cell may be a suitable cell.

[0275] For the intra-cell situation, the target service cell mentioned in the specific implementation may be regarded as a second TRP associated with the (source) service cell.

[0276] DL BWP may refer to initial (DL) BWP, default BWP, active (DL) BWP.

[0277] PCell (primary cell): MCG cell, operating on the primary frequency, where the UE performs an initial connection establishment procedure or initiates a connection re-establishment procedure.

[0278] PSCell (Primary SCG Cell): For dual connectivity operation, the SCG cell in which the UE performs random access when reconfiguration is performed using a synchronization procedure.

[0279] Serving cell: For a UE in RRC_CONNECTED without CA / DC configured, there is only one serving cell consisting of the primary cell. For a UE in RRC_CONNECTED configured with CA / DC, the term "serving cell" is used to refer to the set of cells consisting of the special cell and all secondary cells.

[0280] Secondary cell: A cell that provides additional radio resources in addition to the special cell for UEs configured with CA.

[0281] Special Cell (SpCell): For dual connectivity operation, the term special cell refers to the PCell of the MCG or the PSCell of the SCG, otherwise the term special cell refers to the PCell.

[0282] Primary cell group: In MR-DC, a group of service cells associated with the primary node, consisting of SpCell (PCell) and optionally one or more SCells.

[0283] Master Node: In MR-DC, the radio access node that provides the control plane connection to the core network. It can be a master eNB (in EN-DC), a master ng-eNB (in NGEN-DC), or a master gNB (in NR-DC and NE-DC).

[0284] Secondary cell group: In MR-DC, a group of serving cells associated with a secondary node, consisting of a SpCell (PSCell) and optionally one or more SCells.

[0285] Secondary Node: In MR-DC, a radio access node without a control plane connection to the core network, providing additional resources to the UE. It can be an en-gNB (in EN-DC), secondary ng-eNB (in NE-DC) or secondary gNB (in NR-DC and NGEN-DC).

[0286] The terms "serving cell", "TRP associated with the PCI of the serving cell", "TRP associated with the serving cell", "TRP of the serving cell" and "TRP of the serving cell" may be used interchangeably.

[0287] In the present disclosure, the terms "target cell", "target serving cell", "TRP associated with a PCI different from the PCI of the serving cell", and "TRP associated with a target cell" may be used interchangeably. A target serving cell may be identified by a PCI or a PCI index. A UE may be configured with up to 1, 4, 8, or 32 PCI indexes. Each PCI index may identify a target serving cell for the UE.

[0288] In a specific implementation, the serving cell may be a PCell, a SCell or a PSCell.

[0289] In a specific implementation, the target serving cell may be a PCell, a SCell or a PSCell.

[0290] The inter-cell relative to the serving cell of the UE may be a neighboring cell, a cell other than the serving cell, or a cell having a PCI different from that of the serving cell. If the UE can perform inter-cell beam management, the UE may be in inter-cell coverage.

[0291] The term "MAC layer" and the term "MAC entity" are used interchangeably.

[0292] A UE being configured with a unified TCI framework (eg, unified TCI configuration) may be equivalent to a UE being configured with a unified TCI state operation.

[0293] SpCellConfig: Serving cell specific MAC and PHY parameters of the SpCell. Parameters for the SpCell (PCell of MCG or PSCell of SCG) of this cell group. SpCellConfig is included in CellGroupConfig. SpCellConfig may include ServingCellConfig.

[0294] SCellConfig: SCellConfig is included in CellGroupConfig. SCellConfig may include ServingCellConfig.

[0295] ServingCellConfig: The IE ServingCellConfig is used to configure (add or modify) the UE with a serving cell, which can be an MCG, or a SpCell of an SCG, or an SCell. Most of the parameters in this document are UE-specific, but some are also cell-specific (e.g., in an additionally configured bandwidth portion). Only SCell release and addition are used to support reconfiguration between PUCCH and PUCCHless SCell.

[0296] CellGroupConfig: Configuration of a cell group. The CellGroupConfig IE is used to configure a master cell group (MCG) or a secondary cell group (SCG). A cell group includes a MAC entity, a set of logical channels with an associated RLC entity, a primary cell (SpCell), and one or more secondary cells (SCells).

[0297] Figure 8 8 is a block diagram illustrating a node 800 for wireless communication according to an example implementation of the present disclosure. Figure 8 As illustrated, the node 800 may include a transceiver 820, a processor 828, a memory 834, one or more presentation components 838, and at least one antenna 836. The node 800 may also include a radio frequency (RF) band module, a BS communication module, a network communication module, and a system communication management module, an input / output (I / O) port, an I / O component, and a power supply ( Figure 8 not shown).

[0298] Each of these components can communicate with each other directly or indirectly via one or more buses 840. Node 800 can be a node that executes reference Figures 1 to 7 Disclose various functions of UE or BS.

[0299] A transceiver 820 having a transmitter 822 (e.g., a transmitting circuit) and a receiver 824 (e.g., a receiving circuit) may be configured to transmit and / or receive time and / or frequency resource partitioning information. The transceiver 820 may be configured to transmit in different types of subframes and time slots, including but not limited to available, unavailable, and flexibly usable subframe and time slot formats. The transceiver 820 may be configured to receive data and control channels.

[0300] Node 800 may include various computer-readable media. Computer-readable media may be any available media that node 800 can access, and includes volatile (and / or nonvolatile) media and removable (and / or non-removable) media.

[0301] Computer readable media may include computer storage media and communication media. Computer storage media may include volatile (and / or non-volatile) media and removable (and / or non-removable) media implemented in any method or technology for storing information such as computer readable instructions, data structures, program modules or data.

[0302] Computer storage media may include RAM, ROM, EPROM, EEPROM, flash memory (or other storage technology), CD-ROM, digital versatile disk (DVD) (or other optical disk storage), cassettes, magnetic tape, magnetic disk storage (or other magnetic storage devices), etc. Computer storage media may not include propagated data signals. Communication media may generally be embodied as computer readable instructions, data structures, program modules or other data in a modulated data signal (such as a carrier wave), or other transport mechanism, and include any information delivery media.

[0303] The term "modulated data signal" may refer to a signal that has one or more of its characteristics set or changed in such a manner as to encode information in the signal. Communication media may include wired media such as a wired network or direct-wired connection and wireless media such as acoustic, RF, infrared and other wireless media. Combinations of any of the previously listed components should also be included within the scope of computer-readable media.

[0304] The memory 834 may include computer storage media in the form of volatile and / or non-volatile memory. The memory 834 may be removable, non-removable, or a combination thereof. Example memories may include solid-state memory, hard drives, optical drives, etc. Figure 8 As illustrated, the memory 834 may store computer-readable and / or computer-executable instructions 832 (e.g., software codes or parameters) that, when executed, are configured to cause the processor 828 to perform the operations described herein, for example, with reference to Figures 1 to 7 Alternatively, the instructions 832 may not be directly executable by the processor 828, but may be configured to cause the node 800 (eg, when compiled and executed) to perform the various functions disclosed herein.

[0305] The processor 828 (e.g., having a processing circuit) may include an intelligent hardware device, such as a central processing unit (CPU), a microcontroller, an ASIC, etc. The processor 828 may include a memory. The processor 828 may process data 830 and instructions 832 received from the memory 838, as well as information sent and received via the transceiver 820, the baseband communication module, and / or the network communication module. The processor 828 may also process information transmitted to the transceiver 820 for transmission to the network communication module via the antenna 836 for transmission to the core network (CN).

[0306] One or more presentation components 838 can present data indications to a person or another device. Examples of presentation components 838 can include a display device, a speaker, a printing component, a vibration component, etc.

[0307] In view of the present disclosure, various techniques may be used to implement the disclosed concepts without departing from the scope of those concepts. In addition, although these concepts have been disclosed with specific reference to certain specific implementations, it will be appreciated by those of ordinary skill in the art that changes may be made in form and detail without departing from the scope of these concepts. Therefore, the disclosed specific implementations are considered to be illustrative and not restrictive in all respects. It should also be understood that the present disclosure is not limited to the disclosed specific embodiments. Nevertheless, many rearrangements, modifications, and substitutions are possible without departing from the scope of the present disclosure.

Claims

1. A method for multiple transmission and reception point (mTRP) operation performed by a user equipment (UE) to communicate with a plurality of transmission and reception points (TRPs), the plurality of TRPs comprising a first TRP and a second TRP, the method comprising: applying a first transmit configuration indication (TCI) state and a first uplink (UL) power control configuration associated with the first TRP to perform a first UL transmission toward the first TRP; and Apply a second TCI state and a second UL power control configuration associated with the second TRP to perform a second UL transmission toward the second TRP.

2. The method according to claim 1, further comprising: receiving a radio resource control (RRC) message from the first TRP, the RRC message including a UL power control configuration set associated with the second TRP, the UL power control configuration set including the second UL power control configuration; receiving a medium access control (MAC) control element (CE) from one of the first TRP and the second TRP, the MAC CE instructing the UE to apply the second UL power control configuration in the UL power control configuration set to perform the second UL transmission; and The information about the MAC CE is indicated to a lower layer of the MAC layer of the UE.

3. The method according to claim 2, wherein the MAC CE comprises at least one of the following: a serving cell identity (ID) of a serving cell associated with the second TRP, The power control configuration ID of the second UL power control configuration, or The TCI state ID of the second TCI state.

4. The method according to claim 1, further comprising: receiving a first unified TCI state type indication of a type of the first TCI state; as well as receiving a second unified TCI state type indication of the type of the second TCI state, Wherein each of the type of the first TCI state and the type of the second TCI state is one of a UL TCI state and a joint TCI state.

5. The method according to claim 1, further comprising: determining a first UL transmit power for the first UL transmission according to the first UL power control configuration; determining a second UL transmit power for the second UL transmission according to the second UL power control configuration; transmitting a first set of UL resources toward the first TRP using the first UL transmit power; and and transmitting a second set of UL resources toward the second TRP using the second UL transmit power, wherein: The first set of UL resources includes a first physical uplink control channel (PUCCH), a first physical uplink shared channel (PUSCH), and a first sounding reference signal (SRS), and The second set of UL resources includes a second PUCCH, a second PUSCH, and a second SRS.

6. The method according to claim 1, wherein: The first UL power control configuration is associated with at least one of: The first TCI state, a first TCI state identifier (ID) of the first TCI state, a first panel ID associated with the first TRP, a first cell ID associated with the first TRP, a first search space ID associated with the first TRP, a first control resource set (CORESET) ID associated with the first TRP, the first CORESET pool index associated with the first TRP, or a first TRP-specific ID associated with the first TRP, and The second UL power control configuration is associated with at least one of: The second TCI state, a second TCI state ID of the second TCI state, the second panel ID associated with the second TRP, a second cell ID associated with the second TRP, a second search space ID associated with the second TRP, a second CORESET ID associated with the second TRP, the second CORESET pool index associated with the second TRP, or A second TRP-specific ID associated with the second TRP.

7. The method according to claim 1, wherein: The first UL power control configuration includes at least one of the following: a first UL power control ID associated with the first TRP, a first P0 alpha set configuration for a first physical uplink control channel (PUCCH) associated with the first TRP, a second P0 alpha set configuration for a first physical uplink shared channel (PUSCH) associated with the first TRP, or a third P0alpha set configuration for a first sounding reference signal (SRS) associated with the first TRP, and The second UL power control configuration includes at least one of the following: a second UL power control ID associated with the second TRP, a fourth P0 alpha set configuration for a second PUCCH associated with the second TRP, a fifth P0 alpha set configuration for a second PUSCH associated with the second TRP, or A sixth P0 alpha set configuration for a second SRS associated with the second TRP.

8. A user equipment (UE) for performing a multiple transmit and receive point (mTRP) operation to communicate with a plurality of transmit and receive points (TRPs), the plurality of TRPs comprising a first TRP and a second TRP, the UE comprising: at least one processor; and at least one memory coupled to the at least one processor, wherein the at least one memory stores one or more computer-executable instructions that, when executed by the at least one processor, cause the UE to: applying a first transmit configuration indication (TCI) state and a first uplink (UL) power control configuration associated with the first TRP to perform a first UL transmission toward the first TRP; and Apply a second TCI state and a second UL power control configuration associated with the second TRP to perform a second UL transmission toward the second TRP.

9. The UE of claim 8, wherein the one or more computer executable instructions, when executed by the at least one processor, further cause the UE to: receiving a radio resource control (RRC) message from the first TRP, the RRC message including a UL power control configuration set associated with the second TRP, the UL power control configuration set including the second UL power control configuration; receiving a medium access control (MAC) control element (CE) from one of the first TRP and the second TRP, the MAC CE instructing the UE to apply the second UL power control configuration in the UL power control configuration set to perform the second UL transmission; and The information about the MAC CE is indicated to a lower layer of the MAC layer of the UE.

10. The UE according to claim 9, wherein the MAC CE comprises at least one of the following: a serving cell identity (ID) of a serving cell associated with the second TRP, The power control configuration ID of the second UL power control configuration, or The TCI state ID of the second TCI state.

11. The UE of claim 8, wherein the one or more computer executable instructions, when executed by the at least one processor, further cause the UE to: Receiving a first unified TCI state type indication of a type of the first TCI state; and receiving a second unified TCI state type indication of the type of the second TCI state, Wherein each of the type of the first TCI state and the type of the second TCI state is one of a UL TCI state and a joint TCI state.

12. The UE of claim 8, wherein the one or more computer executable instructions, when executed by the at least one processor, further cause the UE to: determining a first UL transmit power for the first UL transmission according to the first UL power control configuration; determining a second UL transmit power for the second UL transmission according to the second UL power control configuration; transmitting a first set of UL resources toward the first TRP using the first UL transmit power; and and transmitting a second set of UL resources toward the second TRP using the second UL transmit power, wherein: The first set of UL resources includes a first physical uplink control channel (PUCCH), a first physical uplink shared channel (PUSCH), and a first sounding reference signal (SRS), and The second set of UL resources includes a second PUCCH, a second PUSCH, and a second SRS.

13. The UE according to claim 8, wherein: The first UL power control configuration is associated with at least one of: The first TCI state, a first TCI state identifier (ID) of the first TCI state, a first panel ID associated with the first TRP, a first cell ID associated with the first TRP, a first search space ID associated with the first TRP, a first control resource set (CORESET) ID associated with the first TRP, the first CORESET pool index associated with the first TRP, or a first TRP-specific ID associated with the first TRP, and The second UL power control configuration is associated with at least one of: The second TCI state, a second TCI state ID of the second TCI state, the second panel ID associated with the second TRP, a second cell ID associated with the second TRP, a second search space ID associated with the second TRP, a second CORESET ID associated with the second TRP, the second CORESET pool index associated with the second TRP, or A second TRP-specific ID associated with the second TRP.

14. The UE according to claim 8, wherein: The first UL power control configuration includes at least one of the following: a first UL power control ID associated with the first TRP, a first P0 alpha set configuration for a first physical uplink control channel (PUCCH) associated with the first TRP, a second P0 alpha set configuration for a first physical uplink shared channel (PUSCH) associated with the first TRP, or a third P0alpha set configuration for a first sounding reference signal (SRS) associated with the first TRP, and The second UL power control configuration includes at least one of the following: a second UL power control ID associated with the second TRP, a fourth P0 alpha set configuration for a second PUCCH associated with the second TRP, a fifth P0 alpha set configuration for a second PUSCH associated with the second TRP, or A sixth P0 alpha set configuration for a second SRS associated with the second TRP.

15. A base station (BS) for performing a multiple transmission and reception point (mTRP) operation to communicate with a user equipment (UE) via a plurality of transmission and reception points (TRPs), the plurality of TRPs comprising a first TRP and a second TRP, the BS comprising: at least one processor; and at least one memory coupled to the at least one processor, wherein the at least one memory stores one or more computer-executable instructions that, when executed by the at least one processor, cause the BS to: configuring the UE with a first transmit configuration indication (TCI) state and a first uplink (UL) power control configuration associated with the first TRP, such that the UE is capable of performing a first UL transmission toward the first TRP based on the first TCI state and the first UL power control configuration; as well as The UE is configured with a second TCI state and a second UL power control configuration associated with the second TRP, so that the UE can perform a second UL transmission toward the second TRP based on the second TCI state and the second UL power control configuration.

16. The BS of claim 15, wherein the one or more computer executable instructions, when executed by the at least one processor, further cause the BS to: sending a radio resource control (RRC) message including a UL power control configuration set associated with the second TRP to the UE via the first TRP, the UL power control configuration set including the second UL power control configuration; and A medium access control (MAC) control element (CE) is sent to the UE via one of the first TRP and the second TRP, and the MAC CE instructs the UE to apply the second UL power control configuration in the UL power control configuration set to perform the second UL transmission.

17. The BS according to claim 16, wherein the MAC CE comprises at least one of the following: a serving cell identity (ID) of a serving cell associated with the second TRP, The power control configuration ID of the second UL power control configuration, or The TCI state ID of the second TCI state.

18. The BS of claim 15, wherein the one or more computer executable instructions, when executed by the at least one processor, further cause the BS to: sending a first unified TCI state type indication of the type of the first TCI state to the UE; and sending a second unified TCI state type indication of the type of the second TCI state to the UE, Wherein each of the type of the first TCI state and the type of the second TCI state is one of a UL TCI state and a joint TCI state.

19. The BS of claim 15, wherein: The first UL power control configuration is associated with at least one of: The first TCI state, a first TCI state identifier (ID) of the first TCI state, a first panel ID associated with the first TRP, a first cell ID associated with the first TRP, a first search space ID associated with the first TRP, a first control resource set (CORESET) ID associated with the first TRP, the first CORESET pool index associated with the first TRP, or a first TRP-specific ID associated with the first TRP, and The second UL power control configuration is associated with at least one of: The second TCI state, a second TCI state ID of the second TCI state, the second panel ID associated with the second TRP, a second cell ID associated with the second TRP, a second search space ID associated with the second TRP, a second CORESET ID associated with the second TRP, the second CORESET pool index associated with the second TRP, or A second TRP-specific ID associated with the second TRP.

20. The BS of claim 15, wherein: The first UL power control configuration includes at least one of the following: a first UL power control ID associated with the first TRP, a first P0 alpha set configuration for a first physical uplink control channel (PUCCH) associated with the first TRP, a second P0 alpha set configuration for a first physical uplink shared channel (PUSCH) associated with the first TRP, or a third P0alpha set configuration for a first sounding reference signal (SRS) associated with the first TRP, and The second UL power control configuration includes at least one of the following: a second UL power control ID associated with the second TRP, a fourth P0 alpha set configuration for a second PUCCH associated with the second TRP, a fifth P0 alpha set configuration for a second PUSCH associated with the second TRP, or A sixth P0 alpha set configuration for a second SRS associated with the second TRP.

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