Determination of path loss offset in asymmetrically heterogeneous networks

Abstract

Systems, methods, and apparatus for wireless communication are described. The method improves the efficiency and accuracy of path loss estimation. An example method includes a wireless device receiving power control signaling. The method further includes the wireless device transmitting an uplink transmission using an uplink transmission configuration indicating a TCI state, wherein a path loss estimate of the uplink transmission power of the uplink transmission is determined by applying an offset based on the power control signaling. In some embodiments, the application offset is determined by at least one of the following factors: a path loss reference signal power offset; a higher layer filter reference signal received power (RSRP) offset; or a path loss estimation offset.

Description

Technical Field

[0001] This patent document generally relates to wireless communication. Background Technology

[0002] Mobile communication technologies are propelling the world toward an increasingly interconnected and networked society. Compared to existing wireless networks, next-generation systems and wireless communication technologies will need to support a wider range of use case characteristics and provide more complex and advanced access requirements and flexibility.

[0003] Long-Term Evolution (LTE) is a wireless communication standard developed by the 3rd Generation Partnership Project (3GPP) for mobile devices and data terminals. LTE Advanced (LTE-A) is a wireless communication standard that enhances the LTE standard. The fifth-generation wireless system (called 5G) evolves upon the LTE and LTE-A wireless standards, aiming to support higher data rates, massive connectivity, ultra-low latency, high reliability, and other emerging service requirements. Summary of the Invention

[0004] This patent document discloses a method for improving uplink transmission power path loss estimation in HetNet (Asymmetric Heterogeneous Network) operation. The estimation uses mathematical operations involving several applied offsets, such as path loss reference signal power offset, higher layer filtered reference signal received power (RSRP) offset, and path loss estimation offset. This method can be used with the Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), Sound Reference Signal (SRS), or Physical Random Access Channel (PRACH).

[0005] A first example wireless communication method includes receiving power control signaling by a wireless device. The method further includes transmitting an uplink transmission by the wireless device using an uplink transmission configuration indicating a TCI state, wherein a path loss estimate of the uplink transmission power of the uplink transmission is determined by applying an offset based on the power control signaling.

[0006] A second example wireless communication method includes a network device transmitting power control signaling. The method also includes the network device receiving an uplink transmission transmitted using an uplink transmission configuration indicating a TCI state, wherein a path loss estimate of the uplink transmission power of the uplink transmission is determined by applying an offset based on the power control signaling.

[0007] It should be noted that when a patent document discloses a method for sending information from a first device to a second device, it should be understood that a method for the second device to receive information from the first device is also disclosed. Similarly, when a method for the first device to receive a message from a second device is disclosed, it should be understood that the message is sent from the second device to the first device.

[0008] In yet another example embodiment, an apparatus configured or operable to perform the methods described above is disclosed. The apparatus includes at least one processor configured to implement the methods described above.

[0009] In yet another example implementation, the above method is embodied in processor-executable code and stored in a non-transitory computer-readable storage medium. When a processor executes the code contained in the computer-readable storage medium, the processor performs the method described in this patent document.

[0010] The above and other aspects and their embodiments are described in more detail in the accompanying drawings, description and claims. Attached Figure Description

[0011] Figure 1 An example heterogeneous network (HetNet) is shown.

[0012] Figure 2 This is an example flowchart for sending uplink transmissions according to a defined path loss estimate.

[0013] Figure 3 This is an example flowchart for receiving uplink transmissions sent according to a defined path loss estimate.

[0014] Figure 4 An example block diagram of a hardware platform that can be used as part of a network device or a wireless device is shown.

[0015] Figure 5 Example wireless communication including a base station (BS) and a user equipment (UE) based on some implementations of the disclosed technology is shown. Detailed Implementation

[0016] The example headings in the following sections are for ease of understanding of the disclosed subject matter and do not limit the scope of the claimed subject matter in any way. Therefore, one or more features of one example section may be combined with one or more features of another example section. Furthermore, the term "5G" is used for clarity of explanation, but the techniques disclosed in this document are not limited to 5G technology and can also be used in wireless systems implementing other protocols.

[0017] I. Introduction This patent document discloses a road loss estimation method using applied offset. Among other benefits, the disclosed method improves the efficiency and accuracy of road loss estimation.

[0018] In current 5G new radio (NR) systems, HetNet (Heterogeneous Network) scenarios refer to the presence of multiple different types of network structures within the same service area. The main advantage of HetNet in 5G lies in its ability to enhance network capacity and coverage by allowing seamless handover between different network types. For example, when users move from a macrocell environment to a microcell environment, their devices can switch networks without experiencing a degradation in service quality or connection speed. This is particularly important for applications requiring low latency and high reliability, such as autonomous vehicles, remote surgery, and industrial automation.

[0019] A typical HetNet operating architecture is asymmetric downlink (DL) single transmission and reception point (sTRP) and uplink (UL) multiple transmission and reception point (mTRP), deploying macro base stations (BS) and micro nodes. When applying optimal site selection schemes for the downlink and uplink separately, the optimal serving site for providing downlink service to user equipment (UE) may differ from the optimal serving site for providing uplink service. The former is determined based on the optimal DL received power (e.g., Reference Signal Received Power (RSRP)), while the latter is determined with the goal of minimizing propagation loss (e.g., path loss). Continuing to use a DL and UL serving site binding architecture as in traditional technologies can lead to performance degradation. Therefore, the question is how to offset the uplink path loss in this scenario.

[0020] The MTRP operation of MIMO in 5G NR is described below.

[0021] 5G New Radio (NR) Multiple Input Multiple Output (MIMO) technology is enhanced by implementing multiple TRP (transmit and receive points) technology. In the context of 5G NR, MIMO is a key feature that significantly improves the overall performance of wireless communication systems by using multiple antennas at the transmitter and receiver. This allows for increased spatial diversity, resulting in better signal quality, higher data rates, and greater reliability.

[0022] Multi-TRP technology in 5G NR MIMO involves using multiple TRPs for data transmission and reception. A TRP consists of transmitter and receiver antenna arrays, and each TRP can operate independently or cooperate with other TRPs to enhance communication capabilities. With multi-TRP, the spatial domain is fully utilized, providing a means to support multiple users simultaneously within the same frequency band.

[0023] The key advantages of multiple TRPs in 5G NR MIMO include enhanced spatial multiplexing, improved beamforming, higher spectral efficiency, robustness in high-density scenarios, and flexibility in millimeter wave deployment.

[0024] In summary, the multi-TRP technology in 5G NR MIMO enhances network capabilities by providing a more efficient and robust way to utilize available spectrum and support more simultaneous connections. It paves the way for future high-speed, high-density wireless communication by leveraging the spatial domain to improve data transmission and reception.

[0025] The HetNet scenario in 5G NR is described below.

[0026] The HetNet (Heterogeneous Network) scenario for 5G New Radio (NR) refers to a network configuration that integrates various cell types and access technologies to provide a seamless and efficient user experience. In HetNet, the goal is to combine macro cells (large, traditional base stations with wide coverage areas) and micro cells (smaller, low-power base stations with shorter coverage areas) under a unified management framework.

[0027] However, when applying optimal site selection schemes to the downlink and uplink separately, the optimal serving site for providing downlink service to the UE may differ from the optimal serving site for providing uplink service. The former is determined based on optimal DL received power (e.g., RSRP), while the latter is determined with the objective of minimizing propagation loss (e.g., path loss). Continuing to use a DL and UL serving site binding architecture as in conventional techniques may lead to performance degradation. A schematic diagram of the proposed mechanism is available in [link to schematic diagram]. Figure 1 Found it. Figure 1 This demonstrates the decoupling of DL / UL sites in HetNet.

[0028] In the HetNet scenario, 5G NR is designed to work alongside existing long-term evolution (LTE) and other wireless technologies, leveraging their respective strengths to create a cohesive and robust network infrastructure. This allows operators to deploy 5G NR incrementally while still supporting older technologies, ensuring a smooth transition to the new standard and minimizing disruption to existing users.

[0029] Overall, the HetNet scenario for 5G NR aims to create a flexible, efficient, and user-centric network that can adapt to the diverse needs of modern wireless communication, providing high-speed and high-quality connectivity regardless of where users are or what they are doing.

[0030] The open-loop power control for uplink transmission is described below.

[0031] NR uplink power control is a set of algorithms and tools used to control the transmit power of different uplink physical channels and signals to ensure that these channels and signals are received by the network at appropriate power levels.

[0032] As part of uplink power control, open-loop power control includes support for path loss estimation and / or partial path loss compensation, where the UE determines the uplink path loss based on downlink measurements and sets the transmit power accordingly. This is denoted as... This indicates that basic open-loop power control can optionally support partial road loss compensation. It is the target received power for uplink transmission. It is a partial road loss compensation factor, and PL is an uplink road loss estimate based on downlink signal measurements.

[0033] Typically, the values ​​of the open-loop power control parameters for different uplink channels and signals can be specified as follows: For PUSCH, When it runs in FR1, the UE is based on a set of and Get one of the values ​​(first value or second value) and The UE obtains the PL value based on the first reference signal used for path loss estimation.

[0034] When it is running in FR2, the UE uses a set of instructions to direct the PUSCH. Spatial relationship indication between mappings The UE obtains the PL value based on the spatial relationship indication used to indicate the mapping between the PUSCH and a set of reference signals used for path loss estimation.

[0035] For PUCCH, When it runs in FR1, the UE is based on a set of First value acquisition The UE obtains the PL value based on the first reference signal used for path loss estimation.

[0036] When it is running in FR2, the UE uses a set of instructions to instruct the PUCCH. Spatial relationship indication between mappings The UE obtains the PL value based on the spatial relationship indication used to indicate the mapping between the PUCCH and a set of reference signals used for path loss estimation.

[0037] For SRS, The UE obtains the value configured for the SRS resource set for that SRS. The UE obtains the PL value based on the reference signal configured for path loss estimation for the SRS resource set of that SRS.

[0038] For PRACH, The UE obtains the information based on the cell configuration. The UE obtains the PL value based on the reference signal configured for path loss estimation for PRACH.

[0039] Other related terms are described below.

[0040] Note that in this patent document, the definition of "beam" or "beam state" is equivalent to at least one of the following: quasi-co-location (QCL) state, transmission configuration indicator (TCI) state, spatial relationship (also known as spatial relationship information), reference signal (RS), spatial filter, or precoding. Furthermore, in this patent document, "beam state" is also referred to as "beam". Specifically, The definition of “Tx beam” is equivalent to at least one of the following: QCL state, TCI state, spatial relationship state, DL reference signal, UL reference signal, Tx spatial filter, or Tx precoding.

[0041] The definition of “Rx beam” is equivalent to at least one of the following: QCL state, TCI state, spatial relation state, spatial filter, Rx spatial filter, or Rx precoding.

[0042] The definition of “beam ID” is equivalent to at least one of the following: QCL state index, TCI state index, spatial relationship state index, reference signal index, spatial filter index, or precoding index.

[0043] Specifically, the spatial filter can be a spatial filter on the UE side or the gNB side, and the spatial filter is also called a spatial domain filter.

[0044] Note that in this patent document, "spatial relationship" includes one or more reference RSs, which are used to represent the same or quasi-co-located "spatial relationship" between the target "RS or channel" and the one or more reference RSs.

[0045] Note that in this patent document, "spatial relationship" also refers to at least one of the following: beam, spatial parameter, or spatial domain filter.

[0046] Note that in this patent document, the definition of “UL TCI state” is equivalent to at least one of the following: the TCI state that is activated / configured for the corresponding UL transmission, which can be configured by the higher-level parameter TCI-UL-State.

[0047] Note that in this patent document, “QCL ​​state” includes one or more reference RS and their corresponding QCL type parameters, wherein the QCL type parameters include at least one or a combination of the following: [1] Doppler spread, [2] Doppler frequency shift, [3] delay spread, [4] average delay, [5] average gain, and [6] spatial parameters (also referred to as spatial Rx parameters). In this patent document, “TCI state” is equivalent to “QCL ​​state”. In this patent document, 'QCL-TypeA', 'QCL-TypeB', 'QCL-TypeC' and 'QCL-TypeD' are defined as follows.

[0048] 'QCL-TypeA': {Doppler frequency shift, Doppler spread, average delay, delay spread} 'QCL-TypeB': {Doppler frequency shift, Doppler spread} 'QCL-TypeC': {Doppler shift, average delay} 'QCL-TypeD': {space Rx parameter} Note that in this patent document, RS includes Channel State Information Reference Signal (CSI-RS), Synchronization Signal Block (SSB) (also known as SS / PBCH), Demodulation Reference Signal (DMRS), Probe Reference Signal (SRS), and Physical Random Access Channel (PRACH). Furthermore, RS includes at least DL Reference Signal and UL Reference Signaling.

[0049] DL RS includes at least CSI-RS, SSB, and DMRS (e.g., DL DMRS). UL RS includes at least SRS, DMRS (e.g., UL DMRS) and PRACH.

[0050] Note that in this patent document, "UL signal" can be PUCCH, PUSCH, or SRS, PRACH.

[0051] Note that in this patent document, "DL signal" can be PDCCH, PDSCH, CSI-RS, or SSB.

[0052] Note that in this patent document, the definition of "uplink" is equivalent to at least one of the following: PUSCH, PUCCH, SRS, or PRACH.

[0053] Note that in this patent document, the definition of "downlink" is equivalent to at least one of the following: PDSCH, PDCCH, CSI-RS, SSB, or DL-PRS.

[0054] Note that in this patent document, the definition of "communication" is equivalent to at least one of the following: downlink reception or uplink transmission.

[0055] Note that in this patent document, DCI is equivalent to at least one of the following: DCI format 1_0, DCI format 1_1, DCI format 1_2, DCI format 1_3, DCI format 0_0, DCI format 0_1, DCI format 1_2, or DCI format 0_3.

[0056] II. Example 1 Example 1 describes UL transmission path loss estimation for pure uplink TRP (UL-only TRP).

[0057] The UE receives power control-related signaling from the NW, and then the UE sends uplink transmissions to the NW.

[0058] The UE determines the path loss estimate for uplink transmission power based on signaling from the NW.

[0059] The signaling can be at least one of the following: DCI, MAC CE, or RRC.

[0060] The uplink transmission can be at least one of the following: PUSCH, PUCCH, SRS, or PRACH.

[0061] This uplink transmission can use UL TCI state (e.g., higher-layer parameter TCI-UL-State).

[0062] The reference signal configured in UL TCI status can be at least one of the following: SSB, CSI-RS, or SRS.

[0063] When the reference signal is configured as SRS, the SRS can be used for beam management (e.g., the higher-level parameter usage of the SRS resource is configured as 'beamManagement').

[0064] For the path loss estimation of uplink transmission power (denoted as...) PL ( q d ),in q d It is the identifier of the road loss reference signal, which is determined by at least one of the following factors: Factor 1: Power of the reference signal (denoted as referenceSignalPower).

[0065] The path loss reference signal can be sent from the NW to the UE, and this signal can be at least one of SSB or CSI-RS.

[0066] The path loss reference signal can be sent from the UE to the NW, and this signal can be an SRS.

[0067] The path loss estimate of SRS is equal to the transmit power of the SRS on the UE side minus the target receive power of the SRS on the NW side.

[0068] This SRS can be used for beam management (e.g., the high-level parameter usage of the SRS resource is configured as 'beamManagement').

[0069] Factor 2: Path loss reference signal power offset (denoted as PL-RS offset) The value of the PL-RS offset can be positive, negative, or zero.

[0070] The PL-RS offset can be associated with or configured to a set of path loss reference signals.

[0071] The PL-RS offset can be associated with or configured to a reference signal for the applied UL TCI state.

[0072] The PL-RS offset can be associated with the TAG applied to this uplink transmission.

[0073] The PL-RS offset can be associated with the closed loop applied to this uplink transmission.

[0074] The PL-RS offset can be associated with the target receive power (denoted as p0) configured for this uplink transmission.

[0075] The PL-RS offset can be associated with a specific value of CORESETPoolIndex.

[0076] The applied PL-RS offset can be indicated to the uplink transmission by the DCI.

[0077] The PL-RS offset for the application can be selected from several PL-RS offsets configured in the RRC.

[0078] The PL-RS offset for the application can be selected from several PL-RS offsets activated by MAC CE.

[0079] The PL-RS offset of the application can be indicated to the uplink transmission by the MAC CE.

[0080] The PL-RS offset for the application can be selected from several PL-RS offsets configured in the RRC.

[0081] Factor 3: Higher layer filtered RSRP.

[0082] The higher-layer filtering RSRP is defined for a reference serving cell and its higher-layer filter configuration for that reference serving cell.

[0083] Factor 4: RSRP offset of higher layer filters (denoted as RSRP offset).

[0084] The value of RSRP offset can be positive, negative, or zero.

[0085] The RSRP offset can be associated with or configured to a set of path loss reference signals.

[0086] The RSRP offset can be associated with or configured to a reference signal for the UL TCI state used for this uplink transmission.

[0087] The RSRP offset can be associated with the TAG applied to this uplink transmission.

[0088] The RSRP offset can be associated with the closed loop applied to this uplink transmission.

[0089] The RSRP offset can be associated with the target receive power (denoted as p0) configured for this uplink transmission.

[0090] The RSRP offset can be associated with a specific value of CORESETPoolIndex.

[0091] The applied RSRP offset can be indicated to the uplink transmission by the DCI.

[0092] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0093] The applied RSRP offset can be selected from multiple RSRP offsets activated by MAC CE.

[0094] The RSRP offset of the application can be indicated to the uplink transmission by the MAC CE.

[0095] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0096] Factor 5: Road loss estimation offset (denoted as PL(offset)).

[0097] The value of PL (offset) can be positive, negative, or zero.

[0098] PL (offset) can be associated with or configured to a set of path loss reference signals.

[0099] PL (offset) can be associated with or configured to a reference signal for the UL TCI state used for this uplink transmission.

[0100] PL (offset) can be associated with a TAG applied to this uplink transfer.

[0101] PL (offset) can be associated with the closed loop applied to this uplink transmission.

[0102] PL (offset) can be associated with the target receive power (denoted as p0) configured for this uplink transmission.

[0103] PL (offset) can be associated with a specific value of CORESETPoolIndex.

[0104] The application's offset (PL) can be indicated to the uplink transmission by the DCI.

[0105] The application's offset can be selected from multiple offsets configured in the RRC.

[0106] The application's offset can be selected from several offsets activated on MAC CE.

[0107] The application's offset (PL) can be indicated to the uplink transmission by the MAC CE.

[0108] The application's offset can be selected from multiple offsets configured in the RRC.

[0109] The path loss estimate for uplink transmission power can be calculated using at least one of the following formulas: PL ( q d ) = referenceSignalPower – higher layer filtered RSRP + PL(offset) (1) PL ( q d ) = ( referenceSignalPower + PL-RS offset ) – higher layer filteredRSRP (2) PL ( q d ) = referenceSignalPower – (higher layer filtered RSRP + RSRPoffset) (3).

[0110] III. Example 2 Example 2 describes the PUSCH transmission path loss estimation for UL-only TRP.

[0111] The UE receives power control-related signaling from the NW, and then the UE sends a PUSCH transmission to the NW.

[0112] The UE determines the path loss estimate of the PUSCH transmission power based on the signaling from the NW.

[0113] The signaling can be at least one of the following: DCI, MAC CE, or RRC.

[0114] The PUSCH can use UL TCI state (e.g., higher-level parameter TCI-UL-State).

[0115] The reference signal configured in UL TCI status can be at least one of the following: SSB, CSI-RS, or SRS.

[0116] When the reference signal is configured as SRS, the SRS can be used for beam management (e.g., the higher-level parameter usage of the SRS resource is configured as 'beamManagement').

[0117] For the path loss estimation of PUSCH transmission power (denoted as...) PL ( q d ),in q d It is the identifier of the road loss reference signal, which is determined by at least one of the following factors: Factor 1: Power of the reference signal (denoted as referenceSignalPower).

[0118] The path loss reference signal can be sent from the NW to the UE, and the signal can be at least one of SSB or CSI-RS.

[0119] The path loss reference signal can be sent from the UE to the NW, and this signal can be an SRS.

[0120] The path loss estimate of SRS is equal to the transmit power of the SRS on the UE side minus the target receive power of the SRS on the NW side.

[0121] This SRS can be used for beam management (e.g., the high-level parameter usage of the SRS resource is configured as 'beamManagement').

[0122] Factor 2: Path loss reference signal power offset (denoted as...) PL-RS offset ).

[0123] The value of the PL-RS offset can be positive, negative, or zero.

[0124] The PL-RS offset can be associated with or configured to a set of path loss reference signals.

[0125] The PL-RS offset can be associated with or configured to a reference signal for the applied UL TCI state (e.g., the first or second applied UL TCI state).

[0126] The PL-RS offset can be associated with a TAG applied to this PUSCH transmission.

[0127] The PL-RS offset can be associated with the closed loop applied to this PUSCH transmission.

[0128] The PL-RS offset can be associated with the target receive power (denoted as p0) configured for transmission to this PUSCH.

[0129] The PL-RS offset can be associated with a specific value of CORESETPoolIndex associated with this PUSCH transmission.

[0130] The PL-RS offset can be associated with or configured to be transmitted to the SRS resource set of this PUSCH.

[0131] This SRS resource set is used for codebook-based or non-codebook-based PUSCH transport (for example, the higher-level parameter usage of this SRS resource set can be configured as 'codebook' or 'nonCodebook').

[0132] The application's PL-RS offset can be indicated to the PUSCH transmission via DCI.

[0133] The PL-RS offset for the application can be selected from multiple PL-RS offsets configured in the RRC.

[0134] The applied PL-RS offset can be selected from multiple PL-RS offsets activated by MAC CE.

[0135] The application's PL-RS offset can be transmitted to the PUSCH by the MAC CE.

[0136] The PL-RS offset for the application can be selected from multiple PL-RS offsets configured in the RRC.

[0137] Factor 3: Higher layer filtered RSRP.

[0138] The higher-layer filtering RSRP is defined for a reference serving cell and its higher-layer filter configuration for that reference serving cell.

[0139] Factor 4: RSRP offset of higher layer filters (denoted as RSRP offset).

[0140] The value of RSRP offset can be positive, negative, or zero.

[0141] The RSRP offset can be associated with or configured to a set of path loss reference signals.

[0142] The RSRP offset can be associated with or configured to a reference signal for the applied UL TCI state.

[0143] The RSRP offset can be associated with the TAG applied to this PUSCH transmission.

[0144] The RSRP offset can be associated with the closed loop applied to this PUSCH transmission.

[0145] The RSRP offset can be associated with the target receive power (denoted as p0) configured for transmission to this PUSCH.

[0146] The RSRP offset can be associated with a specific value of CORESETPoolIndex associated with the PUSCH transfer.

[0147] The RSRP offset can be associated with or configured to be transmitted to the SRS resource set for this PUSCH.

[0148] This SRS resource set is used for codebook-based or non-codebook-based PUSCH transport (for example, the higher-level parameter usage of this SRS resource set can be configured as 'codebook' or 'nonCodebook').

[0149] The RSRP offset of the application can be indicated to the PUSCH transmission by the DCI.

[0150] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0151] The applied RSRP offset can be selected from multiple RSRP offsets activated by MAC CE.

[0152] The application's RSRP offset can be indicated to the PUSCH transmission by the MAC CE.

[0153] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0154] Factor 5: Road loss estimation offset (denoted as PL(offset)).

[0155] The value of PL (offset) can be positive, negative, or zero.

[0156] PL (offset) can be associated with or configured to a set of path loss reference signals.

[0157] PL (offset) can be associated with or configured to a reference signal for the applied UL TCI state.

[0158] PL (offset) can be associated with a TAG applied to this PUSCH transfer.

[0159] PL (offset) can be associated with the closed loop applied to this PUSCH transmission.

[0160] PL (offset) can be associated with the target receive power (denoted as p0) configured for transmission to this PUSCH.

[0161] PL (offset) can be associated with a specific value of CORESETPoolIndex associated with this PUSCH transfer.

[0162] PL (offset) can be associated with or configured to be transferred to the SRS resource set for this PUSCH.

[0163] This SRS resource set is used for codebook-based or non-codebook-based PUSCH transport (for example, the higher-level parameter usage of this SRS resource set can be configured as 'codebook' or 'nonCodebook').

[0164] The application's PL (offset) can be transmitted to the PUSCH by the DCI.

[0165] The application's PL (offset) can be selected from multiple PL-RS offsets configured in the RRC.

[0166] The application's PL (offset) can be selected from multiple PL-RS offsets activated by the MAC CE.

[0167] The application's PL (offset) can be transmitted to the PUSCH by the MAC CE.

[0168] The application's PL (offset) can be selected from multiple PL-RS offsets configured in the RRC.

[0169] The path loss estimate for uplink transmission power can be calculated using at least one of the following formulas: PL ( q d ) = referenceSignalPower – higher layer filtered RSRP + PL(offset) (1) PL ( q d ) = ( referenceSignalPower + PL-RS offset ) – higher layer filteredRSRP (2) PL ( q d ) = referenceSignalPower – (higher layer filtered RSRP + RSRPoffset) (3).

[0170] IV. Example 3 Example 3 describes the PUCCH transmission path loss estimation for UL-only TRP.

[0171] The UE receives power control-related signaling from the NW, and then the UE sends a PUCCH transmission to the NW.

[0172] The UE determines the path loss estimate of the PUCCH transmission power based on the signaling from the NW.

[0173] The signaling can be at least one of the following: DCI, MAC CE, or RRC.

[0174] The PUCCH can use UL TCI state (e.g., higher-level parameter TCI-UL-State).

[0175] The reference signal configured in UL TCI status can be at least one of the following: SSB, CSI-RS, or SRS.

[0176] When the reference signal is configured as SRS, the SRS can be used for beam management (e.g., the higher-level parameter usage of the SRS resource is configured as 'beamManagement').

[0177] For the path loss estimation of PUCCH transmission power (denoted as...) PL ( q d ),in q d It is the identifier of the road loss reference signal, which is determined by at least one of the following factors: Factor 1: The transmission power of the reference signal (denoted as referenceSignalPower).

[0178] The path loss reference signal can be sent from the NW to the UE, and the signal can be at least one of SSB or CSI-RS.

[0179] The path loss reference signal can be sent from the UE to the NW, and this signal can be an SRS.

[0180] The path loss estimate of SRS is equal to the transmit power of the SRS on the UE side minus the target receive power of the SRS on the NW side.

[0181] This SRS can be used for beam management (e.g., the high-level parameter usage of the SRS resource is configured as 'beamManagement').

[0182] Factor 2: Path loss reference signal power offset (denoted as...) PL-RS offset ).

[0183] The value of the PL-RS offset can be positive, negative, or zero.

[0184] The PL-RS offset can be associated with or configured to a set of path loss reference signals.

[0185] The PL-RS offset can be associated with or configured to a reference signal for the applied UL TCI state.

[0186] The PL-RS offset can be associated with a TAG applied to this PUCCH transmission.

[0187] The PL-RS offset can be associated with the closed loop applied to this PUCCH transmission.

[0188] The PL-RS offset can be associated with the target receive power (denoted as p0) configured for transmission to this PUCCH.

[0189] The PL-RS offset can be associated with a specific value of CORESETPoolIndex associated with the PUCCH transmission.

[0190] The PL-RS offset can be associated with a set of power control parameters configured for transmission to the PUCCH.

[0191] This set of power control parameters is configured for PUCCH transmissions operating in the FR1 band.

[0192] The application's PL-RS offset can be indicated to the PUCCH transmission by the DCI.

[0193] The PL-RS offset for the application can be selected from multiple PL-RS offsets configured in the RRC.

[0194] The applied PL-RS offset can be selected from multiple PL-RS offsets activated by MAC CE.

[0195] The application's PL-RS offset can be indicated to the PUCCH by the MAC CE.

[0196] The PL-RS offset for the application can be selected from multiple PL-RS offsets configured in the RRC.

[0197] Factor 3: Higher layer filtered RSRP.

[0198] The higher-layer filtering RSRP is defined for a reference serving cell and its higher-layer filter configuration for that reference serving cell.

[0199] Factor 4: RSRP offset of higher layer filters (denoted as RSRP offset).

[0200] The value of RSRP offset can be positive, negative, or zero.

[0201] The RSRP offset can be associated with or configured to a set of path loss reference signals.

[0202] The RSRP offset can be associated with or configured to a reference signal for the applied UL TCI state.

[0203] The RSRP offset can be associated with the TAG applied to this PUCCH transmission.

[0204] The RSRP offset can be associated with the closed loop applied to this PUCCH transmission.

[0205] The RSRP offset can be associated with the target receive power (denoted as p0) configured for transmission to this PUCCH.

[0206] The RSRP offset can be associated with a specific value of CORESETPoolIndex associated with the PUCCH transmission.

[0207] The RSRP offset can be associated with a set of power control parameters configured for transmission to the PUCCH.

[0208] This set of power control parameters is configured for PUCCH transmissions operating in the FR1 band.

[0209] The RSRP offset of the application can be indicated to the PUSCH transmission by the DCI.

[0210] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0211] The applied RSRP offset can be selected from multiple RSRP offsets activated by MAC CE.

[0212] The application's RSRP offset can be indicated to the PUSCH transmission by the MAC CE.

[0213] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0214] Factor 5: Road loss estimation offset (denoted as PL(offset)).

[0215] The value of PL (offset) can be positive, negative, or zero.

[0216] PL (offset) can be associated with or configured to a set of path loss reference signals.

[0217] PL (offset) can be associated with or configured to a reference signal for the applied UL TCI state.

[0218] PL (offset) can be associated with a TAG applied to this PUCCH transmission.

[0219] PL (offset) can be associated with the closed loop applied to this PUCCH transmission.

[0220] PL (offset) can be associated with the target receive power (denoted as p0) configured for transmission to this PUCCH.

[0221] PL (offset) can be associated with a specific value of CORESETPoolIndex associated with this PUCCH transmission.

[0222] PL (offset) can be associated with a set of power control parameters configured for transmission to the PUCCH.

[0223] This set of power control parameters is configured for PUCCH transmissions operating in the FR1 band.

[0224] The application's PL (offset) can be transmitted to the PUCCH by the DCI.

[0225] The application's PL (offset) can be selected from multiple PL-RS offsets configured in the RRC.

[0226] The application's PL (offset) can be selected from multiple PL-RS offsets activated by the MAC CE.

[0227] The application's PL (offset) can be transmitted to the PUCCH by the MAC CE.

[0228] The application's PL (offset) can be selected from multiple PL-RS offsets configured in the RRC.

[0229] The path loss estimate for uplink transmission power can be calculated using at least one of the following formulas: PL ( q d ) = referenceSignalPower – higher layer filtered RSRP + PL(offset) (1) PL ( q d ) = ( referenceSignalPower + PL-RS offset ) – higher layer filteredRSRP (2) PL (q d ) = referenceSignalPower – (higher layer filtered RSRP + RSRPoffset) (3).

[0230] V. Example 4 Example 4 describes the SRS transmission path loss estimation for a pure uplink TRP (UL-only TRP).

[0231] The UE receives power control-related signaling from the NW, and then the UE sends an SRS transmission to the NW.

[0232] The UE determines the path loss estimate of the SRS transmission power based on the signaling from the NW.

[0233] The signaling can be at least one of the following: DCI, MAC CE, or RRC.

[0234] The PUSCH can use UL TCI state (e.g., higher-level parameter TCI-UL-State).

[0235] The reference signal configured in UL TCI status can be at least one of the following: SSB, CSI-RS, or SRS.

[0236] When the reference signal is configured as an SRS, the SRS can be used for beam management (e.g., the high-level parameter usage of the SRS resource is configured as 'beamManagement'), and the target SRS is used for purposes other than beam management.

[0237] For the path loss estimation of SRS transmission power (denoted as ) PL ( q d ),in q d It is the identifier of the road loss reference signal, which is determined by at least one of the following factors: Factor 1: Power of the reference signal (denoted as referenceSignalPower).

[0238] The path loss reference signal can be sent from the NW to the UE, and it can be at least one of the following: SSB or CSI-RS.

[0239] The path loss reference signal can be sent from the UE to the NW, and this signal can be an SRS.

[0240] The path loss estimate of SRS is equal to the transmit power of the SRS on the UE side minus the target receive power of the SRS on the NW side.

[0241] This SRS can be used for beam management (e.g., the high-level parameter usage of the SRS resource is configured as 'beamManagement').

[0242] Factor 2: Path loss reference signal power offset (denoted as...) PL-RS offset ).

[0243] The value of the PL-RS offset can be positive, negative, or zero.

[0244] The PL-RS offset can be associated with or configured to a set of path loss reference signals.

[0245] The PL-RS offset can be associated with or configured to a reference signal for the applied UL TCI state.

[0246] The PL-RS offset can be associated with a TAG applied to this SRS transmission.

[0247] The PL-RS offset can be associated with the closed loop applied to this SRS transmission.

[0248] The PL-RS offset can be associated with the target received power (denoted as p0) configured for transmission to this SRS.

[0249] The PL-RS offset can be associated with a specific value of CORESETPoolIndex associated with the SRS transmission.

[0250] The PL-RS offset can be associated with or configured to be transmitted to the SRS resource set.

[0251] The application's PL-RS offset can be indicated to the SRS transmission by the DCI.

[0252] The PL-RS offset for the application can be selected from multiple PL-RS offsets configured in the RRC.

[0253] The applied PL-RS offset can be selected from multiple PL-RS offsets activated by MAC CE.

[0254] The application's PL-RS offset can be indicated to the SRS transmission by the MAC CE.

[0255] The PL-RS offset for the application can be selected from multiple PL-RS offsets configured in the RRC.

[0256] Factor 3: Higher layer filtered RSRP.

[0257] The higher-layer filtering RSRP is defined for a reference serving cell and its higher-layer filter configuration for that reference serving cell.

[0258] Factor 4: RSRP offset of higher layer filters (denoted as RSRP offset).

[0259] The value of RSRP offset can be positive, negative, or zero.

[0260] The RSRP offset can be associated with or configured to a set of path loss reference signals.

[0261] The RSRP offset can be associated with or configured to a reference signal for the applied UL TCI state.

[0262] The RSRP offset can be associated with a TAG applied to the SRS transmission.

[0263] The RSRP offset can be associated with the closed loop applied to this SRS transmission.

[0264] The RSRP offset can be associated with the target receive power (denoted as p0) configured for the SRS transmission.

[0265] The RSRP offset can be associated with a specific value of CORESETPoolIndex associated with the SRS transmission.

[0266] The RSRP offset can be associated with or configured to be transmitted to the SRS resource set.

[0267] The applied RSRP offset can be indicated to the SRS transmission by the DCI.

[0268] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0269] The applied RSRP offset can be selected from multiple RSRP offsets activated by MAC CE.

[0270] The RSRP offset of the application can be indicated to the SRS transmission by the MAC CE.

[0271] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0272] Factor 5: Road loss estimation offset (denoted as PL(offset)).

[0273] The value of PL (offset) can be positive, negative, or zero.

[0274] PL (offset) can be associated with or configured to a set of path loss reference signals.

[0275] PL (offset) can be associated with or configured to a reference signal for the applied UL TCI state.

[0276] PL (offset) can be associated with a TAG applied to this SRS transmission.

[0277] PL (offset) can be associated with the closed loop applied to this SRS transmission.

[0278] PL (offset) can be associated with the target receive power (denoted as p0) configured for this SRS transmission.

[0279] PL (offset) can be associated with a specific value of CORESETPoolIndex associated with this SRS transmission.

[0280] PL (offset) can be associated with or configured to be transferred to the SRS resource set for this PUSCH.

[0281] The application's PL (offset) can be indicated to the SRS transmission by the DCI.

[0282] The application's PL (offset) can be selected from multiple PL-RS offsets configured in the RRC.

[0283] The application's PL (offset) can be selected from multiple PL-RS offsets activated by the MAC CE.

[0284] The application's PL (offset) can be indicated to the SRS transmission by the MAC CE.

[0285] The application's PL (offset) can be selected from multiple PL-RS offsets configured in the RRC.

[0286] The path loss estimate for uplink transmission power can be calculated using at least one of the following formulas: PL ( q d ) = referenceSignalPower – higher layer filtered RSRP + PL(offset) (1) PL ( q d ) = ( referenceSignalPower + PL-RS offset) – higher layer filteredRSRP (2) PL ( q d ) = referenceSignalPower – (higher layer filtered RSRP + RSRPoffset) (3).

[0287] VI. Example 5 Example 5 describes PRACH transmission path loss estimation for UL-only TRP.

[0288] The UE receives power control-related signaling from the NW, and then the UE sends a PRACH transmission to the NW.

[0289] The UE determines the path loss estimate of the PRACH transmission power based on the signaling from the NW.

[0290] The signaling can be at least one of the following: DCI, MAC CE, or RRC.

[0291] This PRACH transmission can be triggered by either CFRA or CBRA.

[0292] The PRACH can use UL TCI state (e.g., higher-level parameter TCI-UL-State).

[0293] The reference signal configured in UL TCI status can be at least one of the following: SSB, CSI-RS, or SRS.

[0294] When the reference signal is configured as an SRS, the SRS can be used for beam management (e.g., the high-level parameter usage of the SRS resource is configured as 'beamManagement'), and the target SRS is used for purposes other than beam management.

[0295] For the path loss estimation of PRACH transmission power (denoted as...) PL ( q d ),in q d It is the identifier of the road loss reference signal, which is determined by at least one of the following factors: Factor 1: Power of the reference signal (denoted as referenceSignalPower).

[0296] The path loss reference signal can be sent from the NW to the UE, and the signal can be at least one of SSB or CSI-RS.

[0297] The path loss reference signal can be sent from the UE to the NW, and this signal can be an SRS.

[0298] The path loss estimate of SRS is equal to the transmit power of the SRS on the UE side minus the target receive power of the SRS on the NW side.

[0299] This SRS can be used for beam management (e.g., the high-level parameter usage of the SRS resource is configured as 'beamManagement').

[0300] Factor 2: Path loss reference signal power offset (denoted as...) PL-RS offset ).

[0301] The value of the PL-RS offset can be positive, negative, or zero.

[0302] The PL-RS offset can be associated with or configured to a set of path loss reference signals.

[0303] The PL-RS offset can be associated with or configured to a reference signal for the applied UL TCI state.

[0304] The PL-RS offset can be associated with a TAG applied to this PRACH transmission.

[0305] The PL-RS offset can be associated with the closed loop applied to this PRACH transmission.

[0306] The PL-RS offset can be associated with the target receive power (denoted as p0) configured for transmission on this PRACH.

[0307] The PL-RS offset can be associated with a specific value of CORESETPoolIndex associated with this PRACH transmission.

[0308] The PL-RS offset can be associated with the RACH configuration of this PRACH transmission.

[0309] The PL-RS offset of the application can be indicated to the PRACH transmission by the DCI.

[0310] The PL-RS offset for the application can be selected from multiple PL-RS offsets configured in the RRC.

[0311] The applied PL-RS offset can be selected from multiple PL-RS offsets activated by MAC CE.

[0312] The application's PL-RS offset can be indicated to the PRACH transmission by the MAC CE.

[0313] The PL-RS offset for the application can be selected from multiple PL-RS offsets configured in the RRC.

[0314] Factor 3: Higher layer filtered RSRP.

[0315] The higher-layer filtering RSRP is defined for a reference serving cell and its higher-layer filter configuration for that reference serving cell.

[0316] Factor 4: RSRP offset of higher layer filters (denoted as RSRP offset).

[0317] The value of RSRP offset can be positive, negative, or zero.

[0318] The RSRP offset can be associated with or configured to a set of path loss reference signals.

[0319] The RSRP offset can be associated with or configured to a reference signal for the applied UL TCI state.

[0320] The RSRP offset can be associated with a TAG applied to this PRACH transmission.

[0321] The RSRP offset can be associated with the closed loop applied to this PRACH transmission.

[0322] The RSRP offset can be associated with the target receive power (denoted as p0) configured for transmission on this PRACH.

[0323] The RSRP offset can be associated with a specific value of CORESETPoolIndex associated with the PRACH transmission.

[0324] The RSRP offset can be associated with the RACH configuration of the PRACH transmission.

[0325] The RSRP offset of the application can be indicated to the PRACH transmission by the DCI.

[0326] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0327] The applied RSRP offset can be selected from multiple RSRP offsets activated by MAC CE.

[0328] The application's RSRP offset can be indicated to the PRACH transmission by the MAC CE.

[0329] The applied RSRP offset can be selected from multiple RSRP offsets configured in the RRC.

[0330] Factor 5: Road loss estimation offset (denoted as PL(offset)).

[0331] The value of PL (offset) can be positive, negative, or zero.

[0332] PL (offset) can be associated with or configured to a set of path loss reference signals.

[0333] PL (offset) can be associated with or configured to a reference signal for the applied UL TCI state.

[0334] PL (offset) can be associated with a TAG applied to this PRACH transmission.

[0335] PL (offset) can be associated with the closed loop applied to this PRACH transmission.

[0336] PL (offset) can be associated with the target receive power (denoted as p0) configured for transmission on this PRACH.

[0337] PL (offset) can be associated with a specific value of CORESETPoolIndex associated with this PRACH transfer.

[0338] PL (offset) can be associated with the RACH configuration of this PRACH transmission.

[0339] The application's PL (offset) can be indicated to the PRACH transmission by the DCI.

[0340] The application's PL (offset) can be selected from multiple PL-RS offsets configured in the RRC.

[0341] The application's PL (offset) can be selected from multiple PL-RS offsets activated by the MAC CE.

[0342] The application's PL (offset) can be transmitted to the PRACH by the MAC CE.

[0343] The application's PL (offset) can be selected from multiple PL-RS offsets configured in the RRC.

[0344] The path loss estimate for uplink transmission power can be calculated using at least one of the following formulas: PL ( qd ) = referenceSignalPower – higher layer filtered RSRP + PL(offset) (1) PL ( q d ) = ( referenceSignalPower + PL-RS offset ) – higher layer filteredRSRP (2) PL ( q d ) = referenceSignalPower – (higher layer filtered RSRP + RSRPoffset) (3).

[0345] To facilitate the offset estimation of uplink path loss in asymmetric HetNet operations (i.e., asymmetric DL sTRP with UL mTRP), at least the following features are provided: Dynamic updates / indications of path loss offsets for PUSCH, PUCCH, SRS, and PRACH; TRP-specific power offset for PUSCH, PUCCH, SRS, and PRACH; Determination of road loss offset calculation; The equation for calculating road loss offset; The correlation between path loss offset and TCI status / TCI status group / TA / CORESETPoolIndex / closed loop, etc.

[0346] Figure 2 is an example flowchart for transmitting an uplink transmission according to a determined path loss estimate. Operation 202 includes the wireless device receiving power control signaling. Operation 204 includes the wireless device transmitting an uplink transmission using an uplink transmission configuration indication (TCI) state, wherein the path loss estimate of the uplink transmission power of the uplink transmission is determined by applying an offset based on the power control signaling. In some embodiments, the method may be implemented according to embodiments 1-5. In some embodiments, further steps in performing the method may be based on better system performance than conventional protocols.

[0347] In some embodiments, the uplink transmission includes at least one of the following: physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), sounding reference signal (SRS), or physical random access channel (PRACH).

[0348] In some embodiments, the reference signal configured in the uplink TCI state includes at least one of the synchronization physical broadcast channel signal block (SSB), channel state information reference signal (CSI-RS), or sounding reference signal (SRS) for beam management.

[0349] In some embodiments, the application offset is determined by at least one of the following factors: path loss reference signal power offset; higher layer filter reference signal received power (RSRP) offset; or path loss estimation offset.

[0350] In some embodiments, the path loss estimate of the uplink transmission power is determined by at least one of the following factors: the power of the path loss reference signal; or the received power of the higher layer filter reference signal (RSRP).

[0351] In some embodiments, the path loss reference signal is transmitted from the network device to the wireless device and includes at least one of a Synchronization / Physical Broadcast Channel (PBCH) Signal Block (SSB) or a Channel State Information (CSI) Reference Signal (CSI-RS), or the path loss reference signal is transmitted from the wireless device to the network device and includes a Sounding Reference Signal (SRS) for beam management.

[0352] In some embodiments, the value of the applied offset is positive, negative, or zero.

[0353] In some embodiments, the applied offset is at least: associated with or configured to a set of path loss reference signals; associated with or configured to a reference signal for the uplink TCI state; associated with a timing advance group (TAG) applied to the uplink transmission; associated with a closed loop applied to the uplink transmission; associated with a target receive power configured for the uplink transmission; or associated with a specific value of the control resource set (CORESET) pool index.

[0354] In some embodiments, the applied offset is at least: indicated to the uplink transmission by downlink control information (DCI), wherein the path loss reference signal power offset is selected from a plurality of path loss reference signal power offsets configured by Radio Resource Control (RRC) signaling or a plurality of path loss reference signal power offsets activated by a Medium Access Control (MAC) control unit (CE); or indicated to the uplink transmission by a MAC CE, wherein the path loss reference signal power offset is selected from a plurality of path loss reference signal power offsets configured by RRC signaling.

[0355] In some embodiments, the path loss estimate of the uplink transmission power is calculated using at least one of the following formulas: the power of the path loss reference signal minus the received power of the higher layer filter reference signal (RSRP) plus the path loss estimate offset; the power of the path loss reference signal plus the path loss reference signal power offset minus the higher layer filter RSRP; or the power of the path loss reference signal minus the higher layer filter RSRP minus the higher layer filter RSRP offset.

[0356] In some embodiments, the application offset is associated with or configured to a set of probe reference signals (SRS) resources for Physical Uplink Shared Channel (PUSCH) transmissions, wherein the SRS resource set is used for codebook-based PUSCH transmissions or non-codebook-based PUSCH transmissions.

[0357] In some embodiments, the application offset is associated with a set of power control parameters configured for transmission of the Physical Uplink Control Channel (PUCCH) operating in frequency range 1 (FR1).

[0358] In some embodiments, the application offset is associated with or configured to the set of probe reference signals (SRS) resources transmitted by the SRS.

[0359] In some embodiments, the application offset is associated with the random access channel (RACH) configuration of the physical random access channel (PRACH) transmission.

[0360] Figure 3 is an example flowchart for receiving an uplink transmission sent according to a determined path loss estimate. Operation 302 includes the network device sending power control signaling. Operation 304 includes the network device receiving an uplink transmission sent using an uplink transmission configuration indication (TCI) state, wherein the path loss estimate of the uplink transmission power of the uplink transmission is determined by applying an offset based on the power control signaling. In some embodiments, the method may be implemented according to embodiments 1-5. In some embodiments, further steps of performing the method may be based on better system performance than conventional protocols. The embodiments described above with respect to method 200 are correspondingly applicable to method 300.

[0361] Figure 4 An example block diagram of a hardware platform 400 is shown, which may be part of a network device (e.g., a base station (BS) or a transmit and receive point (TRP)) or a wireless device (e.g., a user equipment (UE)). The hardware platform 400 includes at least one processor 410 and a memory 405 storing instructions. When executed by the processor 410, the instructions cause the hardware platform 400 to perform the actions described in this patent document. Figures 1 to 3 And the operations described in the various embodiments. Transmitter 415 sends or transmits information or data to another device. For example, a network device transmitter may send a message to a user equipment. Receiver 420 receives information or data sent or transmitted by another device. For example, a user equipment may receive a message from a network device. For example, a UE, wireless device, or network device as described in this document may be implemented using hardware platform 400.

[0362] The implementations discussed above apply to wireless communication. Figure 5 illustrates an example of a wireless communication system (e.g., a 5G or NR cellular network) including a base station 520 and one or more user equipments (UEs) 511, 512, and 513. In some embodiments, the UE accesses the BS (e.g., the network) using a communication link to the network (sometimes referred to as the uplink, as shown by dashed arrows 531, 532, and 533), and then conducts subsequent communication from the BS to the UE (e.g., from the network to the UE, sometimes referred to as the downlink, as shown by arrows 541, 542, and 543). In some embodiments, the BS sends information to the UE (sometimes referred to as the downlink, as shown by arrows 541, 542, and 543), and then conducts subsequent communication from the UE to the BS (e.g., from the UE to the BS, sometimes referred to as the uplink, as shown by dashed arrows 531, 532, and 533). The UE can be, for example, a smartphone, tablet, mobile computer, machine-to-machine (M2M) device, Internet of Things (IoT) device, etc. The UE described in this document can be communicatively connected to Figure 5 The base station shown is 520.

[0363] Those skilled in the art will understand that this patent document discloses a method for estimating path loss in uplink transmission power using applied offset. Among other benefits, the method disclosed in this patent document improves the efficiency and accuracy of path loss estimation.

[0364] Some embodiments described herein are described in the general context of methods or processes that may be implemented in one embodiment by a computer program product embodied in a computer-readable medium, including computer-executable instructions, such as program code executable by a computer in a networked environment. Computer-readable media may include removable and non-removable storage devices, including but not limited to read-only memory (ROM), random access memory (RAM), compact disc (CD), digital versatile disc (DVD), etc. Therefore, computer-readable media may include non-transitory storage media. Typically, program modules may include routines, programs, objects, components, data structures, etc., that perform a specific task or implement a specific abstract data type. Computer or processor-executable instructions, associated data structures, and program modules represent examples of program code for performing the steps of the methods disclosed herein. Specific sequences of these executable instructions or associated data structures represent examples of corresponding actions that implement the functionality described in these steps or processes.

[0365] Some of the disclosed embodiments may be implemented using hardware circuitry, software, or a combination thereof as devices or modules. For example, hardware circuitry implementations may include discrete analog and / or digital components, integrated, for example, as part of a printed circuit board. Alternatively or additionally, the disclosed components or modules may be implemented as application-specific integrated circuits (ASICs) and / or field-programmable gate arrays (FPGAs) devices. Some implementations may additionally or alternatively include a digital signal processor (DSP), a special-purpose microprocessor having an architecture optimized for the digital signal processing operational requirements associated with the functions disclosed herein. Similarly, various components or sub-components within each module may be implemented as software, hardware, or firmware. Connectivity between modules and / or between components within a module may be provided using any connection methods and media known in the art, including but not limited to communication via the Internet, wired or wireless networks using appropriate protocols.

[0366] While this document contains numerous specific details, these should not be construed as limiting the scope of the claimed invention, but rather as descriptions of features of particular embodiments. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments. Furthermore, although features may be described above as acting in certain combinations or even initially claimed in this way, in some cases one or more features may be removed from the claimed combination, and the claimed combination may be for sub-combinations or variations thereof. Similarly, although operations are depicted in a specific order in the drawings, this should not be construed as requiring these operations to be performed in the specific order or sequence shown, or requiring the performance of all illustrated operations to achieve the desired result.

[0367] Only some implementation methods and examples are described and illustrated. Other implementation methods, enhancements and variations can be made based on the content described and illustrated in this patent document.

Claims

1. A wireless communication method, comprising: Wireless devices receive power control signaling; as well as The wireless device sends an uplink transmission using the uplink transmission configuration indication TCI state, wherein the path loss estimate of the uplink transmission power is determined by applying an offset based on the power control signaling.

2. The method according to claim 1, wherein the uplink transmission includes at least one of the following: Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), Sound Reference Signal (SRS), or Physical Random Access Channel (PRACH).

3. The method according to claim 1 or 2, wherein the reference signal configured in the uplink TCI state includes at least one of the following: Synchronization / Physical Broadcast Channel Signal Block (SSB), Channel State Information Reference Signal (CSI-RS), or Detection Reference Signal (SRS) for beam management.

4. The method of any one of claims 1-3, wherein, The application offset is determined by at least one of the following factors: Path loss reference signal power offset; Higher Layer Filtered Reference Signal Received Power RSRP Offset; or Road loss estimation offset.

5. The method according to any one of claims 1-4, wherein, The path loss estimate for the uplink transmission power is determined by at least one of the following factors: The power of the path loss reference signal; or Received power of the high-layer filter reference signal RSRP.

6. The method according to any one of claims 1-5, wherein, The path loss reference signal is transmitted from the network device to the wireless device and includes at least one of the following: a synchronization / physical broadcast channel signal block (SSB) or a channel state information reference signal (CSI-RS); Alternatively, a path loss reference signal may be transmitted from the wireless device to the network device, and may include a detection reference signal (SRS) for beam management.

7. The method according to any one of claims 1-6, wherein, The value of the application offset can be positive, negative, or zero.

8. The method according to any one of claims 1-7, wherein, The application offset is at least: Associated with or configured to a set of road loss reference signals; A reference signal associated with or configured to the uplink TCI state; Associated with the timing advance group TAG applied to the uplink transmission; Associated with the closed loop applied to the uplink transmission; Associated with the target receive power configured for the uplink transmission; or It is associated with a specific value of the control resource set CORESET pool index.

9. The method according to any one of claims 1-8, wherein, The application offset is at least: The uplink transmission indication is sent from the downlink control information (DCI), wherein the path loss reference signal power offset is selected from a plurality of path loss reference signal power offsets configured by radio resource control (RRC) signaling, or from a plurality of path loss reference signal power offsets activated by the medium access control (MACCE) control unit. or The uplink transmission indication is sent by the MAC CE, wherein the path loss reference signal power offset is selected from a plurality of path loss reference signal power offsets configured by the RRC signaling.

10. The method according to any one of claims 1-9, wherein, The estimated path loss value of the uplink transmission power is calculated using at least one of the following equations: The power of the path loss reference signal minus the received power of the higher-layer filtered reference signal RSRP plus the path loss estimation offset; The power of the path loss reference signal plus the power offset of the path loss reference signal minus the RSRP of the higher layer filter; or The power of the path loss reference signal minus the offset of the higher layer filter RSRP.

11. The method according to any one of claims 1-10, wherein, The application offset is associated with or configured with a sounding reference signal (SRS) resource set for physical uplink shared channel (PUSCH) transmissions, wherein the SRS resource set is used for codebook-based or non-codebook-based PUSCH transmissions.

12. The method according to any one of claims 1-11, wherein, The application offset is associated with a set of power control parameters configured for transmission of the Physical Uplink Control Channel (PUCCH) operating in frequency range 1 FR1.

13. The method according to any one of claims 1-12, wherein, The application offset is associated with or configured to the SRS resource set of the probe reference signal transmitted by the SRS.

14. The method according to any one of claims 1-13, wherein, The application offset is associated with the random access channel (RACH) configuration of the physical random access channel (PRACH) transmission.

15. A wireless communication method, comprising: Network devices send power control signaling; as well as The network device receives uplink transmissions, which are sent using the Uplink Transmission Configuration Indicator (TCI) status, wherein the path loss estimate of the uplink transmission power is determined by applying offset based on the power control signaling.

16. A wireless communication device, comprising a processor configured to perform the method as described in one or more of claims 1 to 15.

17. A computer-readable program storage medium having code stored thereon, which, when executed by a processor, causes the processor to perform one or more of the methods described in claims 1 to 15.

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