Power control scheme for uplink transmission simultaneously

Abstract

A method of wireless communication is described. The method includes receiving, from a network, a message indicating one or more sets of power control parameters associated with at least one transmission information, the message being scheduled by a user device to simultaneously transmit uplink transmissions that are fully or partially overlapped in the time domain and associated with individual transmission information; and determining, based on the message, a transmission power of at least one of the uplink transmissions.

Description

Technical Field

[0001] (Technical Field) This patent document generally relates to systems, devices, and techniques for wireless communication.

Background Art

[0002] (Background) Wireless communication technology is moving the world towards an increasingly connected and networked society. The rapid growth of wireless communication and the progress in technology have led to an increasing demand for capacity and connectivity. Other aspects such as energy consumption, device cost, spectral efficiency, and latency are also important to meet the requirements of various communication scenarios. Compared with existing wireless networks, next-generation systems and wireless communication techniques need to provide support for an increasing number of users and devices.

Summary of the Invention

Means for Solving the Problems

[0003] This document relates to a method, system, and device for a power control scheme for simultaneous uplink transmission.

[0004] In one aspect, a wireless communication method is disclosed. The wireless communication method includes receiving, from a network, a message indicating one or more sets of power control parameters associated with at least one transmission information, the message being scheduled by a user device to simultaneously transmit uplink transmissions that are fully or partially overlapped in a time domain and associated with individual transmission information; and determining, based on the message, at least one transmission power of the uplink transmissions.

[0005] In another aspect, a wireless communication method is disclosed. The wireless communication method includes transmitting, by a network, a message to a user device, the message including at least one set of power control parameters, and receiving, by the network, from the user device, transmissions that overlap in a time domain and are associated with individual transmission information, the transmissions having a transmission power that is determined and scaled based on a message that is associated with at least one transmission information and that has a value not exceeding a maximum output power.

[0006] In another aspect, a communication device comprising a processor configured to implement the method described above is disclosed.

[0007] In another aspect, a computer-readable medium having code stored thereon, the code, when executed, causing a processor to implement the method described above, is disclosed.

[0008] These and other features are described in this document.

Brief Description of the Drawings

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DETAILED DESCRIPTION OF THE INVENTION

[0019] (Detailed Description) The disclosed technology provides an implementation and examples of a power control scheme for simultaneous uplink transmission.

[0020] Power control is for compensating for path loss, overcoming shadow fading, and suppressing interference by adjusting the transmission power of signals from the UE or the base station. Power control can be divided into closed-loop based and open-loop based according to whether the transmitter (e.g., UE) adjusts the transmission power based on information from the receiver (base station). Basically, closed-loop and open-loop power control cooperate within the NR system. For example, a UE that adjusts the transmission power according to an estimated value of path loss is regarded as open-loop, and a UE that adjusts the transmission power according to a TPC command from the base station is regarded as closed-loop.

[0021] In the current NR system, the UE determines the transmission power of the uplink signal based on at least one of the target reception power, path loss compensation, power control command, bandwidth, etc. On the other hand, the value of the maximum output power is defined for different UE classes and cases, and the transmission power of the UE is not allowed to exceed the defined value.

[0022] Taking the following as examples, in NR TS38.213, for the PUSCH transmission power P at the PUSCH transmission opportunity i on the active UL BWP b of the carrier f of the serving cell c, which uses a parameter set configuration with index j and a PUSCH power control adjustment state with index l PUSCH,b,f,c (i, j, q d , l) is determined as follows.

Equation

[0023] In Equation (1), P CMAX,f,c(i) is the maximum output power related to the carrier of the serving cell, where P O_PUSCH is the target received power constituted by the base station, α is the coefficient of path loss compensation, and PL is the value of the estimated path loss associated with the reference signal with index q d and Δ TF is determined based on the modulation and coding scheme (MCS), and f is the transmission power adjustment command received within the scheduling DCI.

[0024] When the determined transmission power of the signal exceeds the maximum value (P CMAX ), the UE is required to scale it so that it does not exceed the maximum value.

[0025] The maximum output power within the transmission duration is also defined similarly, and the transmission duration can refer to the duration of a slot, sub - slot, frame, or sub - frame. Therefore, multiple uplink transmissions may be transmitted within the same transmission duration. When the total transmission power of the transmissions within the transmission duration exceeds the maximum output power, the UE is required to allocate or scale the transmission power of the transmissions according to the priority rules.

[0026] FIG. 1 illustrates a schematic diagram showing a power allocation and scaling scheme implemented in response to exceeding the maximum output power within the transmission duration. As shown in FIG. 1, the power allocation operates one by one based on the priority order. When the remaining power is sufficient for the assigned signal, the transmission power of the signal does not require scaling. When the remaining power is not sufficient for the assigned signal, the transmission power of the signal will be scaled, and the signal with a lower priority than the assigned signal is set to zero.

[0027] Recently, multiple transmit-receive point (MTRP) transmission technologies have been developing with great progress, and multiple TRPs can be realized by multiple base stations or multiple panels of one base station. With the gradual development of user equipment, the number of antennas and panels is increasing, and the types and uses of the equipment are also becoming more diverse. For example, 5G customer premise equipment (CPE), communication devices installed in vehicles, and XR devices are currently attracting great attention.

[0028] A UE with low capabilities can transmit only one uplink signal (PUSCH, PUCCH, SRS, and PRACH) at a time due to the structure of the radio frequency (RF) handling unit. With the development of the UE, some UEs with higher capabilities have multiple panels and multiple RF links, which enables the UE to transmit uplink signals simultaneously through multiple panels. A UE that transmits multiple parts of an uplink signal or multiple uplink signals simultaneously through multiple panels can be referred to as an STxMP.

[0029] Generally, a UE can adjust the transmission power of the transmitted signal with various considerations, such as reducing interference, saving power, and improving reliability. The UE behavior when exceeding the maximum transmission power and maximum output power of the UE is defined by relevant specifications, such as those defined by 3GPP (registered trademark). The maximum output power on the serving cell within the frequency range and the maximum output power per carrier per serving cell are defined in relevant specifications, such as 3GPP (registered trademark) TS38.101.

[0030] When a UE has the ability of simultaneous uplink transmission, the UE needs to be able to determine the individual or total transmission power of the uplink transmission that is transmitted within the time domain simultaneously. Generally, simultaneous transmission is transmitted through different panels of the UE, and the UE is required to determine the transmission power per individual panel.

[0031] Figure 2 shows an exemplary schematic diagram of simultaneous uplink transmission from multiple panels of a user device in the case of multiple TRPs between cells. As shown in Figure 2, the UE can transmit two uplink signals simultaneously through two panels. The types of uplink signals can be the same, for example, both of them are PUSCH, or they can be different from each other. Therefore, the disclosed technology can be applied in both cases where the types of uplink signals are different and the same. In another embodiment, the UE can transmit two parts of an uplink signal simultaneously through two panels. In this case, the two parts of the uplink signal can correspond to the uplink transmission.

[0032] In various scenarios, the UE is required to address the issues when the transmission power exceeds the maximum output power, but a unified or equal scaling scheme is used for convenience without flexibility. Various implementations of the disclosed technology provide a more flexible transmission power determination and scaling scheme to control the power of transmission to different TRPs.

[0033] For transmission power determination and power distribution / scaling in the case of STxMP, various implementations of the disclosed technology propose the following features.

[0034] (1) For transmission power determination, the following two guidelines are considered.

[0035] - The transmission powers of uplink transmissions from multiple panels are both determined. The total value of the transmission power associated with multiple power control parameter sets / panels / TCI states is determined by the UE. The UE determines the value of each component in the determination formula based on a value associated with one or more transmission information.

[0036] - The transmission powers of uplink transmissions from multiple panels are determined separately. The individual values of the transmission power associated with each of the power control parameter sets / panels / TCI states are determined by the UE.

[0037] (2) Regarding the power distribution to the panel when determining the total transmission power, the following is considered.

[0038] - The UE determines the transmission power of the uplink transmission associated with the transmission information based on at least one message, and the message is associated with at least one transmission information. The UE obtains the association between the transmission information and the message according to the information element in the RRC signaling, the information in the MAC CE, or the indication field in the DCI format.

[0039] (3) When the transmission power exceeds the maximum output power regarding the carrier component, the following scaling scheme is considered.

[0040] - The UE scales the sum of the transmission powers of the uplink transmissions associated with the panel so as not to exceed the maximum output power. The scaling factor for each uplink transmission is determined based on at least one message.

[0041] - The UE is indicated not to scale the transmission power of the uplink transmission based on the message from the base station.

[0042] (4) When the transmission power exceeds the maximum output power within the transmission duration, the following distribution and scaling scheme is considered.

[0043] - The UE determines the priority of the uplink transmissions associated with different panels and distributes / scales the transmission power according to the priority rules. The determination is based on the message from the base station.

[0044] - The UE scales the transmission powers of more than one uplink transmission with the same distribution priority. The UE determines the scaling factor based on the message from the base station.

[0045] In this patent document, it should be noted that "TRP" includes at least one of a transmission and reception point, a base station, or a set of panels of one base station. In some implementations, "TRP" includes at least one of "information for grouping one or more reference signals", "resource set", "panel", "subarray", "antenna group", "antenna port group", "group of antenna ports", "beam group", "physical cell index (PCI)", "TRP index", "CORESET pool index", "UE capability value", or "UE capability set".

[0046] In this patent document, it should be noted that "TRP-Id" corresponds to at least one of a CORESET index, a CORESET pool index, an SS / PBCH index, a transmission configuration indicator (TCI) state index, a PCI, an RS set index, an SRS resource set index, a spatial relation index, a power control parameter set index, a panel index, a beam group index, a subarray index, an index of a CDM group of DMRS ports, an index of a group of CSI-RS resources, or a CMR set index.

[0047] In this patent document, it should be noted that "panel index" corresponds to at least one of a UE capability value set index, a panel mode index, an antenna group index, an antenna port group index, a beam group index, a beam reporting group index, a subarray index, an SRS resource set index, a spatial relation index, a power control parameter set index, a CORESET pool index value, or a PCI.

[0048] In this patent document, it should be noted that the "transmission information" includes at least one of information for grouping one or more reference signals, a reference signal resource set, a PUCCH resource set, panel-related information, a subarray, an antenna group, an antenna port group, a group of antenna ports, a beam group, a beam state, a physical cell index (PCI), TRP-related information, a CORESET pool index, an index of the TCI state at the TCI state code point, a UE capability value, or a UE capability set.

[0049] It should be noted that in this document, the TCI state code point is equivalent to the activation of a TCI state entry or a TCI state MAC CE.

[0050] In this patent document, it should be noted that the "beam state" is equivalent to a quasi-co-location (QCL) state, a transmission configuration indicator (TCI) state, a spatial relationship (also called spatial relationship information), a reference signal (RS), a spatial filter, or precoding. For example, the spatial filter can be on either the UE side or the gNB side, and the spatial filter can also be called a spatial domain filter. It should be noted that in this patent document, the "spatial relationship information" may include one or more reference RSs, which are used to represent the same or quasi-same "spatial relationship" between a standardized "RS or channel" and one or more reference RSs. In this patent, the "beam state" is associated with or consists of one or more reference RSs and / or their corresponding QCL type parameters, and the QCL type parameters include at least one of the following aspects or combinations, namely, [1] Doppler spread, [2] Doppler shift, [3] delay spread, [4] average delay, [5] average gain, [6] spatial parameters.

[0051] In this patent document, the "TCI state" can be comparable to the "beam state". In this patent document, the "spatial parameter" can be comparable to a spatial parameter, a spatial reception parameter, or a spatial filter. The following definitions exist in this patent for "QCL type A", "QCL type B", "QCL type C", and "QCL type D".

[0052] - "QCL type A": {Doppler shift, Doppler spread, average delay, delay spread}

[0053] - "QCL type B": {Doppler shift, Doppler spread}

[0054] - "QCL type C": {Doppler shift, average delay}

[0055] - "QCL type D": {Spatial reception parameter}

[0056] Note that in this patent document, a "beam group" comprises at least one beam, beam state, or TCI state.

[0057] Note that in this patent document, an "uplink signal" can be a PUCCH, PUSCH, SRS, or PRACH.

[0058] Note that in this patent document, an "uplink transmission" comprises at least one of a transmission opportunity of an uplink signal, a repetition of an uplink signal, or an uplink signal.

[0059] Note that in this patent document, "PL-RS" refers to a reference signal used for path loss measurement.

[0060] Note that in this patent document, a "TPC command" refers to a power adjustment amount indication for an associated uplink transmission in a DCI format.

[0061] In this patent document, it should be noted that the "UCI type" includes at least one of HARQ-ACK information, SR, LRR, or CSI.

[0062] In this patent document, it should be noted that the "carrier component" includes at least one of a carrier for a serving cell or a complementary uplink carrier for a serving cell.

[0063] Various implementations of the disclosed technology provide various approaches for power control, such as power determination and distribution operations for simultaneous uplink transmissions. FIG. 3 shows an exemplary schematic for explaining power control for simultaneous uplink transmissions based on some implementations of the disclosed technology.

[0064] The following features are examples of some aspects of various approaches proposed by the disclosed technology.

[0065] (1) Determination of the transmission power of uplink transmissions that are transmitted completely or partially overlapping in the time domain.

[0066] The UE obtains an association between uplink transmissions and transmission information according to at least one of an index of a power control parameter set (group), a panel index, an index of a spatial relationship, an index of a resource set, or a TCI state.

[0067] Option 1: In some implementations, the UE determines the total transmission power of the overlapping transmissions associated with individual transmission information.

[0068] In some implementations, the UE determines the total transmission power based on at least one message from the base station. The UE obtains an association between the transmission information and the message based on RRC signaling, MAC CE, or DCI format. In some implementations, the message comprises at least one of a target received power value, a TPC command, a measured value of path loss associated with PL-RS, a modulation and coding scheme, a bandwidth, a subcarrier spacing, a number of occupied physical resources, or a PUCCH format. The UE uses at least one of the messages as a power control parameter to determine the transmission power.

[0069] In some implementations, the UE determines the actual value of the power control parameter used to determine the transmission power. For example, when the message comprises a plurality of candidate values associated with different transmission information for at least one power control parameter, the UE determines to use the average value of the parameter, the maximum or minimum value of the parameter, one of the parameters indicated by the base station, or a weighted average value for determining the transmission power. For example, when the message comprises a TPC command for uplink transmission associated with TRP-1 and a TPC command for uplink transmission associated with TRP-2, the UE determines to use the value for the TPC command used to determine the transmission power. For example, the UE may determine to use only one of the values, for example, the value associated with TRP-1 or the value associated with TRP-2. In another example, the UE may determine to use the average value, maximum value, minimum value, or weighted average value of what is associated with TRP-1 and TRP-2. In some implementations, the weighting for determining the weighted value above is included in a message from the base station.

[0070] In some implementations, the UE reports a message to the base station that includes information determined by the UE. In some implementations, the reported message may include at least one of an actual value of a power control parameter or a range containing the actual value of the power control parameter. In some implementations, the reported message may further include transmission information (index) associated with the determined information or a flag of the power control parameter (e.g., an indication for representing path loss).

[0071] Option 2: The UE determines the individual transmission power of a simultaneous transmission that is associated with individual transmission information.

[0072] In some implementations, the UE determines the transmission power based on at least one message from the base station, and the message includes at least one of a target received power value, a TPC command, a measured value of path loss associated with PL-RS, a modulation and coding scheme, a bandwidth, a subcarrier spacing, a number of occupied physical resources, or a PUCCH format. The message is associated with the transmission information. For example, the UE determines the transmission power of a transmission associated with transmission information index 1 and transmission information index 2 based on messages respectively associated with transmission information index 1 and transmission information index 2.

[0073] The determination of the transmission power will be further discussed later in this patent document in relation to Embodiment 1.

[0074] (2) Determination of the transmission power of an individual uplink transmission when the total transmission power of a simultaneous transmission that is associated with individual transmission information is determined by the UE.

[0075] The UE determines the transmission power of the uplink transmission, which is associated with the transmission information, based on at least one message from the base station, and the message is associated with at least one transmission information. In some implementations, the message from the base station includes at least one of a target reception power value, a measured value of the path loss associated with the PL-RS, a bandwidth, the number of occupied physical resources, a PUCCH format, a default coefficient, a coefficient indication, the number of SRS resource ports, or the number of antenna ports of the UE panel.

[0076] In some implementations, the determination is based on the determined total transmission power.

[0077] The determination of the transmission power will be further discussed later in this patent document in relation to Embodiment 2.

[0078] (3) Scaling of the transmission power when it exceeds the maximum output power for the carrier component.

[0079] In some implementations, the maximum output power of the UE for the carrier component (hereinafter referred to as "P CMAX,f ") is defined. In some implementations, the maximum output power associated with the transmission information (hereinafter referred to as "Pcmax,p") is defined. In some implementations, P CMAX,p is determined by P CMAX,f and a message from the base station associated with the transmission information.

[0080] P CMAX,p is based on P CMAX,f and does not exceed P CMAX,f . In some implementations, the base station sends a message to the UE, which includes a coefficient "m" for indicating the value of Pcmax,p (e.g., P CMAX,p =m*P CMAX,f ).

[0081] In some implementations, the UE sets the transmission power of the uplink transmission to P CMAX,pScale it so that it does not exceed.

[0082] In some implementations, the UE scales the transmission power of at least one uplink transmission associated with one transmission information so that it does not exceed the total transmission power of uplink simultaneous transmissions P CMAX,f In some implementations, the UE scales the transmission power of at least one uplink transmission associated with one transmission information so that it does not exceed.

[0083] In some implementations, the UE determines a scaling factor for uplink transmissions that requires transmission power scaling. In some implementations, a common scaling factor is used for all uplink transmissions. In some implementations, the determination of the scaling factor is based on at least one message from the base station. In some implementations, the message from the base station is associated with at least one transmission information. In some implementations, the message from the base station comprises at least one of a target reception power, a default factor, or a factor indication. In some implementations, the information associated with at least one transmission information comprises at least one of a target reception power value, a measured value of path loss associated with PL-RS, bandwidth, the number of occupied physical resources, a PUCCH format, a default factor, a factor indication, the number of SRS resource ports, or the number of antenna ports of the UE panel.

[0084] In some implementations, the base station sends a message to the UE indicating at least one transmission information or an uplink transmission that does not require transmission power scaling.

[0085] The scaling of the transmission power will be further discussed later in this patent document in relation to Embodiment 3.

[0086] (4) Scaling of transmission power when the maximum output power is exceeded within the transmission duration.

[0087] The maximum output power of the UE within the transmission duration (hereinafter, "P CMAX,iis defined as (referred to as "___"), and the transmission duration includes symbols, slots, sub-slots, frames, or sub-frames.

[0088] In some implementations, the UE scales the transmission power of each uplink transmission based on priority rules. Referring back to FIG. 1, each uplink transmission has a corresponding priority, and the UE distributes power to the uplink transmission based on the priority associated with the uplink transmission. The determined total transmission power of the uplink transmissions within the transmission duration is scaled and distributed to satisfy the demand for uplink transmissions with higher priorities based on the priority rules.

[0089] In some implementations, scaling of the transmission power may not be required. For example, when the sum of the determined transmission power of an uplink transmission with a higher priority than that of a certain uplink transmission and the transmission power of a certain uplink transmission does not exceed P CMAX,i the UE does not scale the transmission power of a certain uplink transmission.

[0090] In some implementations, when the sum of the determined transmission power of an uplink transmission with a higher priority than that of a certain uplink transmission and the determined transmission power of a certain uplink transmission exceeds P CMAX,i the UE scales the transmission power of the uplink transmission.

[0091] In some implementations, when no transmission power can be allocated to the uplink transmission, the UE scales the transmission power of the uplink transmission to be zero.

[0092] In some implementations, the priorities of PUCCH and PUSCH transmissions that carry the same UCI type and are associated with different transmission information are determined based on a message from the base station. In some implementations, the message comprises at least one of RRC signaling, DCI format, or MAC CE. The message comprises at least one of a target received power value, a measured value of path loss associated with PL-RS, bandwidth, the number of occupied physical resources, a PUCCH format, a default coefficient, a coefficient indication, the number of SRS resource ports, the number of antenna ports of the UE panel, or an indication of transmission information.

[0093] In some implementations, when the total transmission power of a transmission with a higher priority than that of all of a plurality of uplink transmissions and the transmission power of a plurality of uplink transmissions are greater than the maximum output power, P CMAX,i scale the transmission power of more than one uplink transmission (a plurality of uplink transmissions). The plurality of uplink transmissions are determined to have the same allocation priority.

[0094] In some implementations, the scaling factor for each uplink transmission is determined based on at least one message from the base station, and the message from the base station is associated with at least one transmission information. The message from the base station comprises at least one of a target received power value, a measured value of path loss associated with PL-RS, bandwidth, the number of occupied physical resources, a PUCCH format, a default coefficient, a coefficient indication, the number of SRS resource ports, the number of antenna ports of the UE panel, or an indication of transmission information.

[0095] The scaling of the transmission power will be further discussed later in this patent document in relation to Embodiment 4.

[0096] In Embodiments 1-4, discussed below, two uplink transmissions are simultaneously transmitted through a plurality of panels. The two uplink transmissions are merely examples, and the disclosed technology is not limited to two uplink transmissions.

[0097] Embodiment 1

[0098] In Embodiment 1, the transmission power of the uplink transmission, which is transmitted overlappingly in the time domain, is determined. The UE determines, based on a message from the base station, the transmission power of more than one simultaneous uplink transmission at a time, and the message includes a plurality of configured power control parameters and other power control parameters acquired or measured by the UE.

[0099] In some implementations, the UE determines the transmission power based on at least one of the power control parameters. Examples of the power control parameters may include at least one of the target reception power, the path loss compensation factor, the path loss associated with PL-RS, the closed-loop power control command, the bandwidth, the number of occupied physical resources, the modulation and coding scheme, or the subcarrier spacing.

[0100] In some embodiments, the UE is configured / shown with at least one set of power control parameters for each transmission information, respectively or commonly. Each set of power control parameters includes at least one of the target reception power, the path loss compensation factor, the index of the reference signal for path loss measurement, the closed-loop power control command, the bandwidth, the number of occupied physical resources, the modulation and coding scheme, or the subcarrier spacing. The UE may determine at least one common or separate value of the power control parameters for each transmission information.

[0101] In some embodiments, the UE determines the total transmission power of more than one uplink transmission that should be transmitted simultaneously. The UE determines the value of each parameter in the determination formula based on a power control parameter associated with at least one of the transmission information.

[0102] In some embodiments, the UE receives a message from the base station, and the message indicates to the UE to select one value of the power control parameter for determining the total transmission power. The message can be RRC signaling, MAC CE, or DCI format. For example, if the information element of the RRC signaling includes an indication for the UE to select one value of the power control parameter and the value of the indication is set to 1, the UE selects the value of the power control parameter associated with the transmission information with index 1 to determine the transmission power.

[0103] In some embodiments, the UE selects one value of the power control parameter to determine the total transmission power based on a default rule. For example, according to the default rule, the UE selects the maximum or minimum value among the values associated with the individual transmission information regarding the power control parameter.

[0104] In some embodiments, the UE determines the actual value of the power control parameter that should be used to determine the total transmission power. When the UE receives or acquires a power control parameter associated with more than one transmission information, the UE determines the value of the power control parameter based on various rules, such as weighted average value, average value, or total value. The weighting is indicated by the base station for each value. For example, the UE acquires the path loss PL-1 associated with panel 1 and the path loss PL-2 associated with panel 2. In some implementations, the UE determines the average value of PL-1 and PL-2 as the path loss compensation parameter to determine the total transmission power.

[0105] In some embodiments, the UE transmits a message to the base station in uplink transmission. The message comprises at least one of a selected / judged value of a power control parameter, a value range containing the selected / judged value of the parameter, an index of transmission information associated with the selected / judged value, or a flag of the power control parameter. For example, the UE determines to select a value of path loss measured based on the PL-RS associated with Panel-1 to determine the total transmission power, and the UE reports the panel index of Panel-1 and the flag of the path loss in the transmission of the PUSCH to the base station.

[0106] In some embodiments, the UE separately determines the transmission power of each of the simultaneous uplink transmissions. In this case, the UE determines the transmission power based on the power control parameter associated with the individual transmission information.

[0107] FIG. 4 illustrates a transmission power determination scheme in the case of STxMP based on some implementations of the disclosed technology. Referring to FIG. 4, there are two separate pieces of transmission information, namely, transmission information 1 and transmission information 2. The total transmission power is determined based on the power control parameter associated with transmission information 1 and the power control parameter associated with transmission information 2. The UE is required to process multiple values of the same power control parameter. For example, for the same power control parameter, for example, the TPC command, transmission information 1, and transmission information 2 have different values from each other.

[0108] Embodiment 2

[0109] Embodiment 2 relates to the determination of the transmission power of each uplink transmission associated with individual transmission information when the total power transmission is determined by the UE for a plurality of uplink transmissions. In the following description, the determined total transmission power of the uplink transmission is P t shown as.

[0110] In some embodiments, the UE determines individual transmission power based on at least one of the power control parameters included in the determination formula. The parameters include at least one of target received power, path loss compensation factor, index of the reference signal for path loss measurement, closed-loop power control command, bandwidth, number of occupied physical resources, modulation and coding scheme, or subcarrier spacing. For example, the UE obtains the path loss PL-1 associated with panel 1 and the path loss PL-2 associated with panel 2. The UE determines that the transmission power of the uplink transmission related to panel-1 is P t *(PL-2) / (PL-1+PL-2), and the transmission power of the uplink transmission related to panel-2 is P t *(PL-1) / (PL-1+PL-2).

[0111] In some embodiments, the UE determines individual transmission power based on a message from the base station. The message includes at least one of the distribution coefficient or the number of SRS resource ports. For example, the UE receives an indication with a value m included in the RRC signaling, and determines that the transmission power of the uplink transmission related to panel-1 is m*P t and the transmission power of the uplink transmission related to panel-2 is (1-m)*P t In another example, the UE is indicated that the number of SRS resource ports for uplink transmission associated with panel-1 and panel-2 are a and b respectively, and the UE determines that the transmission powers of the uplink transmissions associated with panel-1 and panel-2 are Pt*a / (a+b) and Pt*b / (a+b) respectively.

[0112] In some embodiments, the UE determines individual transmission power based on a message including at least one of a default coefficient, a coefficient indication, or the antenna ports of the panel. For example, when the antenna ports of panel-1 and panel-2 are N1 and N2 respectively, the UE determines that the transmission power of the uplink transmission related to panel-1 is Pt *It is N1 / (N1 + N2), and the transmission power of the uplink transmission regarding Panel - 2 is P t *It is determined that it is N2 / (N1 + N2). In another embodiment, when the default coefficient or the indicated coefficient is m, the UE determines that the transmission power of the uplink transmission regarding Panel - 1 is m*P t and the transmission power of the uplink transmission regarding Panel - 2 is (1 - m)*P t and determines that it is so.

[0113] Embodiment 3

[0114] Embodiment 3 provides an example for scaling the transmission power when the sum of the determined transmission powers of the simultaneous uplink transmissions exceeds the maximum output power, and the maximum output power is defined for the carrier component for the serving cell. In the examples given below, only some specific schemes for determining the scaling factor are considered. Those skilled in the art will understand that other schemes can also be applied to determine the scaling factor based on the message from the base station.

[0115] In some embodiments, the UE is defined with the sum of the maximum output power per panel equal to the maximum output power per panel and the maximum output power regarding the carrier component, and the maximum output power per panel is defined based on at least one of the "default coefficient", "indicated coefficient", "number of antenna ports", "UE capability value", a plurality of pre - defined value sets, or a plurality of pre - defined value tables. The UE limits the transmission power of the uplink transmission associated with the transmission information so as not to exceed the maximum output power per panel, and limits the transmission power of another uplink transmission associated with another transmission information so as not to exceed another maximum output power per panel.

[0116] FIG. 5 illustrates an exemplary schematic diagram showing the transmission power when the maximum output power per panel is specified. In FIG. 5, the sum of the maximum output powers for Panel-1 and Panel-2 is equal to the maximum output power for the carrier component. As shown in FIG. 5, the determined transmission power of the uplink transmission associated with Panel-1 does not exceed the maximum output power for Panel-1, and the transmission power of the uplink transmission associated with Panel-2 does not exceed the maximum output power for Panel-2.

[0117] FIG. 6 illustrates an exemplary schematic diagram showing the transmission power when the maximum output power per panel is not specified or when the maximum output power per panel is equal to the maximum output power for the carrier component. In some implementations, the UE limits the transmission power of the uplink transmission associated with the transmission information such that it does not exceed the maximum output power for the carrier component, and the UE limits the transmission power of another uplink transmission associated with different transmission information such that it does not exceed the maximum output power for the carrier component.

[0118] FIG. 7 illustrates an exemplary schematic diagram showing the transmission power when the maximum output power per panel is specified. In FIG. 7, the sum of the maximum output powers for Panel-1 and Panel-2 is greater than the maximum output power for the carrier component, and the maximum output power per panel is defined based on at least one of a "default coefficient", a "shown coefficient", the "number of antenna ports", a "UE capability value", a plurality of predefined value sets, or a plurality of predefined value tables. In some implementations, when the UE limits the transmission power of the uplink transmission associated with the transmission information such that it does not exceed the maximum output power for Panel-1, the UE further limits the transmission power of another uplink transmission associated with different transmission information such that it does not exceed the maximum output power for Panel-2.

[0119] In some embodiments, when the total transmission power of uplink transmissions associated with different transmission information exceeds the maximum output power for a carrier component and the individual transmission power of each uplink transmission is below the maximum output power for the corresponding transmission information, the UE scales the transmission power of at least one uplink transmission such that the sum of the scaled transmission powers does not exceed the maximum output power for the carrier component.

[0120] In some embodiments, for each uplink transmission for which the UE requests transmission power scaling, the UE determines a scaling factor. The determination is based on at least one message from the base station, and the message is associated with at least one transmission information. The message from the base station may comprise at least one of a target received power value, a measured value of path loss associated with PL-RS, bandwidth, the number of occupied physical resources, a PUCCH format, a default factor, a factor indication, the number of SRS resource ports, the number of antenna ports of the UE panel, or an indication of the transmission information. For example, if the base station indicates to the UE a factor m for panel-1, and the determined transmission powers of the uplink transmissions for panel-1 and panel-2 are X and Y respectively, and the maximum output power for the carrier component is P cmax,f Assume that this is the case. In an example, the UE scales such that v(mX + Y) does not exceed P cmax,f where v*m is the scaling factor for the transmission power of the uplink transmission associated with panel-1, and v is the scaling factor for the transmission power of the uplink transmission associated with panel-2. The message from the base station determines the value of m, and the determination of v is up to the UE.

[0121] In some embodiments, the UE receives or obtains multiple values of the same type of message, each value is associated with transmission information, and the UE determines a respective scaling factor for simultaneous uplink transmission based on these multiple values. For example, the number of SRS resource ports associated with Panel-1 and Panel-2 is A and B respectively, and the determined transmission power of the uplink transmission for Panel-1 and Panel-2 is X and Y respectively, and the maximum output power related to the carrier component is P cmax,f obtains a message indicating that. In an example, the UE scales v(AX + BY) / (A + B) so that it does not exceed P cmax,f where v*A / (A + B) is the scaling factor for the transmission power of the uplink transmission associated with Panel-1, and v*B / (A + B) is the scaling factor for the transmission power of the uplink transmission associated with Panel-2. The message from the base station determines the values of A and B, and the determination of v depends on the UE itself.

[0122] In some embodiments, the UE determines an identical scaling factor for uplink transmission that requires transmission power scaling. For example, the determined transmission powers of the simultaneous uplink transmissions for Panel-1 and Panel-2 are X and Y respectively, and the maximum output power related to the carrier component is P cmax,f The UE scales v(X + Y) so that it does not exceed P cmax,f where v is the common scaling factor determined by the UE.

[0123] In some embodiments, the UE receives a message from the base station, the message indicates at least one piece of transmission information, and the UE does not scale the transmission power of the uplink transmission associated with the indicated transmission information. For example, the determined transmission powers of the uplink transmissions for Panel-1 and Panel-2 are X and Y respectively, and the maximum output power related to the carrier component is P cmax,fwherein the base station indicates to the UE not to scale the transmission power associated with Panel - 2. In this case, the UE scales vX so that it does not exceed P cmax,f -Y, where v is a scaling factor. An indication to instruct the UE not to scale the transmission power of an uplink transmission associated with certain transmission information can be implemented with a specific value. For example, in 3GPP (registered trademark) TS specifications, such an indication has a value equal to 1. In some embodiments, the message indicates at least one transmission information, and the UE scales only the transmission power of the uplink transmission associated with the indicated transmission information.

[0124] Embodiment 4

[0125] Embodiment 4 provides an example for scaling the transmission power when the determined transmission power exceeds the maximum output power within the transmission duration. The maximum output power is defined to limit the total transmission power of a plurality of uplink transmissions transmitted within the same transmission duration. Thus, the total transmission power of the plurality of uplink transmissions is limited not to exceed the maximum output power.

[0126] When the total transmission power for transmissions transmitted within the same transmission duration exceeds the maximum output power within the transmission duration, the UE distributes and / or scales the transmission power based on a priority rule for the transmissions.

[0127] In some embodiments, for PUCCH or simultaneous uplink transmission of PUCCH that carry the same UCI type and have the same priority indication therein and are scheduled by DCI, the UE determines the power distribution priority based on a message associated with the transmission information. The message from the base station comprises at least one of a target received power value, a measured value of path loss associated with PL-RS, the number of SRS resource ports, the number of antenna ports of the UE panel, or an indication of the transmission information. For example, the base station indicates to the UE to prioritize power distribution for transmission associated with Panel-1. For example, the UE determines that the priority of uplink transmission with a larger value of transmission power is higher than that with a smaller value of transmission power.

[0128] In some embodiments, for transmission of PUCCH or PUSCH that carry the same UCI type and have the same priority indication therein and are scheduled by DCI and are transmitted simultaneously and associated with different transmission information, the UE simultaneously distributes the transmission power to the above-mentioned transmissions.

[0129] In some embodiments, to distribute the transmission power of simultaneous uplink transmission, the UE scales the transmission power of the uplink transmission so that the total distributed transmission power does not exceed the maximum output power within the transmission duration. The UE determines the scaling factor of the uplink transmission based on a message, and the message comprises at least one of a target received power value, a measured value of path loss associated with PL-RS, the number of SRS resource ports, the number of antenna ports of the UE panel, a default coefficient, a coefficient indication, or the determined transmission power. For example, for transmissions associated with Panel-1 and Panel-2, the determined transmission powers are X and Y respectively, the base station indicates a coefficient value a for Panel-1 and another coefficient value b for Panel-2, and P cmax,i is the maximum output power within the transmission duration, and P alloAssume that it is the power allocated for uplink transmission with a higher priority. In this case, in the embodiment, the UE scales v(aX + bY) so that it does not exceed P cmax,i -P allo where va and vb are scaling factors. Regarding another embodiment, the determined transmission power of the transmission associated with Panel-1 and Panel-2 are X and Y respectively, and the base station indicates a target received power value P1 for Panel-1 and another value P2 for Panel-2, and P cmax,i is the maximum output power within the transmission duration, and P allo Assume that it is the power allocated for uplink transmission with a higher priority. In this case, in the embodiment, the UE scales v(aX + bY) so that it does not exceed P cmax,i -P allo where a is equal to P1 / (P1 + P2) and b is equal to P2 / (P1 + P2).

[0130] FIG. 8 illustrates a flowchart showing an exemplary wireless communication method based on some implementations of the disclosed technology. Method 800 includes, in operation 810, receiving, from a network, a message indicating one or more sets of power control parameters associated with at least one transmission information, where the uplink transmissions are scheduled to be transmitted simultaneously within the time domain and are associated with individual transmission information and are fully or partially overlapped. Method 800 further includes, in operation 820, determining at least one transmission power of the uplink transmissions based on the message.

[0131] In some implementations, the uplink transmission includes at least one of an uplink signal transmission opportunity, an uplink signal repetition, or an uplink signal including PUCCH, PUSCH, SRS, or PRACH, and the transmission information includes at least one of information for grouping one or more reference signals, a reference signal resource set, a PUCCH resource set, panel related information, a subarray, an antenna group, an antenna port group, a group of antenna ports, a beam group, a beam state, a physical cell index (PCI), TRP related information, a CORESET pool index, an index of a TCI state at a TCI state code point, a UE capability value, or a UE capability set.

[0132] In some implementations, method 800 further includes obtaining, by a user device, an association between a message and transmission information based on the message. In some implementations, determining the transmission power includes determining the total transmission power of the uplink transmission or determining an individual transmission power for each uplink transmission. In some implementations, method 800 further includes determining an actual value of a power control parameter used to determine the total transmission power, and the actual value is determined as one of an average, a sum, a weighted average value, or a maximum or minimum value of the received values of the power control parameter associated with the individual transmission information.

[0133] In some implementations, method 800 further includes determining an individual transmission power based on a plurality of power control parameters associated with the individual transmission information. In some implementations, method 800 further includes transmitting, by the user device, a report message to the network including at least one of an actual value of a power control parameter, an index of the transmission information associated with the actual value, or a flag of the actual value of the power control parameter. In some implementations, method 800 further includes distributing the total transmission power to each uplink transmission based on a message associated with at least one transmission information.

[0134] In some implementations, determining the transmission power includes limiting the transmission power of the uplink transmission so that it does not exceed the maximum output power associated with at least one transmission information. In some implementations, the maximum output power is determined based on a message associated with at least one transmission information. In some implementations, method 800 further includes determining at least one scaling factor for at least one of the uplink transmissions when the total transmission power of the uplink transmission exceeds the maximum transmission power. In some implementations, the scaling factor is determined based on a message associated with at least one transmission information.

[0135] In some implementations, method 800 further includes receiving, from the network, a message for indicating that the transmission power of the uplink transmission associated with specific transmission information does not require scaling. In some implementations, method 800 further includes determining a scaling factor for the transmission power of the uplink transmission associated with specific transmission information to have a value for skipping the scaling of the transmission power of the uplink transmission. In some implementations, the value is 1.

[0136] In some implementations, method 800 further includes determining at least one scaling factor to limit at least one transmission power of the uplink transmission when the total transmission power of the uplink transmission exceeds the maximum output power within the transmission duration. In some implementations, the transmission power of the uplink transmission is scaled based on the priority of the uplink transmission. In some implementations, the priority is determined based on a message associated with at least one transmission information. In some implementations, the uplink transmission carries the same uplink control information (UCI) type and is associated with different transmission information. In some implementations, the transmission power of a plurality of uplink transmissions with the same priority is scaled if the sum of the transmission power of the uplink transmission with a higher priority and the plurality of uplink transmissions satisfies a pre-determined condition. In some implementations, the scaling factor of the uplink transmission is determined based on a message associated with at least one transmission information.

[0137] FIG. 9 illustrates a flowchart showing an exemplary wireless communication method based on some implementations of the disclosed technology. Method 900 includes, in operation 910, transmitting, by the network, a message to the user device including at least one set of power control parameters. Method 900 further includes, in operation 920, receiving, by the network, from the user device, transmissions that overlap in the time domain and are associated with individual transmission information, where the transmissions have a transmission power that is determined and scaled based on a message associated with at least one transmission information so as not to exceed the maximum output power.

[0138] In some implementations, method 900 further includes receiving, by the network, from the user device, a report message including at least one of an actual value of a power control parameter, an index of transmission information associated with the actual value, or a flag of the actual value of the power control parameter. In some implementations, the transmission power is determined based on at least one scaling factor for at least one transmission when the total transmission power of the transmission exceeds the maximum output power regarding the carrier component, and the scaling factor is determined based on the message. In some implementations, method 900 further includes transmitting, by the network, to the user device, a message indicating that the transmission power of a certain transmission associated with specific transmission information does not require scaling. In some implementations, the transmission power of a transmission is scaled based on a scaling factor to limit the transmission power of the transmission when the total transmission power of the transmission exceeds the maximum output power within the transmission duration. In some implementations, the transmission power of a transmission is scaled based on a priority rule, and the priority of the transmission is determined based on a message associated with at least one transmission information. In some implementations, the transmission powers of a plurality of uplink transmissions with the same priority are scaled when the sum of the transmission powers of transmissions with a higher priority and a plurality of uplink transmissions satisfies a pre-determined condition.

[0139] In the implementations discussed above in connection with FIGS. 8 and 9, the power control parameter comprises at least one of a target received power value, a transmission power control (TPC) command, an index of a reference signal regarding path loss measurement, a modulation and coding scheme, a number of occupied physical resources, a channel format, or a bandwidth, and the message further includes at least one of a determined transmission power, an indication of weighting, a default factor, a factor indication, an indication of transmission information, a measured value of path loss associated with PL-RS, a number of SRS resource ports, a number of antenna ports, a UE capability value, a pre-defined value, or an index of a pre-defined value set.

[0140] Implementations such as those discussed above would be applicable to wireless communication. FIG. 10 shows an example of a wireless communication system (e.g., a 5G or NR cellular network) that includes a base station 1720 and one or more user equipment (UEs) 1011, 1012, and 1013. In some embodiments, the UEs access (1031, 1032, 1033) a BS (e.g., a network) using an implementation of the disclosed technology, which then enables subsequent communication (1042, 1042, 1043) from the BS to the UEs. The UEs may be, for example, smartphones, tablets, mobile computers, machine-to-machine (M2M) devices, Internet of Things (IoT) devices, etc.

[0141] FIG. 11 shows an example of a block diagram representation of a portion of a device. A device 1110, such as a user device, which can be a base station or any wireless device (or UE), can include processor electronics 1120, such as a microprocessor, that implements one or more of the techniques presented in this document. The device 1110 can include transceiver electronics 1130 for transmitting and / or receiving wireless signals via one or more communication interfaces such as an antenna 1840. The device 1110 can include other communication interfaces for transmitting and receiving data. The device 1110 can include one or more memories (not explicitly shown) configured to store information such as data and / or instructions. In some implementations, the processor electronics 1120 can include at least a portion of the transceiver electronics 1130. In some embodiments, at least some of the disclosed techniques, modules, or functions are implemented using the device 1110.

[0142] This specification, together with the drawings, is to be considered as illustrative only, and the use of the term "illustrative" means examples and is not intended to imply ideal or preferred embodiments unless otherwise described. As used in this specification, the use of "or" is intended to include "and / or" unless the context clearly indicates otherwise.

[0143] Some of the embodiments described in this specification are described in the general context of a method or process, which in one embodiment may be implemented by a computer program product embodied in a computer-readable medium that includes computer-executable instructions, such as program code, executed by a computer in a networked environment. The computer-readable medium 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. Thus, the computer-readable medium can include non-transitory storage media. Generally, program modules may include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. Computer or processor-executable instructions, associated data structures, and program modules represent examples of program code for executing the steps of the methods disclosed herein. A particular sequence of such executable instructions or associated data structures represents an example of corresponding acts for implementing the functions described in such steps or processes.

[0144] Some of the disclosed embodiments can be implemented as devices or modules that use hardware circuits, software, or combinations thereof. For example, a hardware circuit implementation can include discrete analog and / or digital components that are integrated, for example, as part of a printed circuit board. Alternatively, or in addition, the disclosed components or modules can be implemented as application specific integrated circuits (ASICs) and / or as field programmable gate array (FPGA) devices. Some implementations can, in addition, or alternatively, include a digital signal processor (DSP), which is a special microprocessor with an architecture optimized for the requirements of digital signal processing operations associated with the functionality disclosed herein. Similarly, the various components or sub-components within each module may be implemented in software, hardware, or firmware. Connectivity between modules and / or components within a module can be provided using any one of connectivity methods and media known in the art, including, but not limited to, communication via the Internet, wired, or wireless networks using appropriate protocols.

[0145] This book contains many details, but these should not be construed as limitations on the scope of the claimed invention or what may be claimed, but rather as descriptions of features specific to particular embodiments. Certain features described in this book in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, the various features described in the context of a single embodiment can also be implemented separately in multiple embodiments or in any suitable sub-combination. Further, although a feature may be described above as acting in a certain combination and may further be claimed as such initially, one or more features from the claimed combination can in some cases be deleted, and the claimed combination may be directed to a sub-combination or a variation of a sub-combination. Similarly, although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in a sequential order, or that all of the illustrated operations be performed, in order to achieve desirable results.

[0146] Only some implementations and examples are described, and other implementations, enhancements, and variations can also be made based on what is described and illustrated in this disclosure.

Claims

1. A method of wireless communication, comprising: receiving, from a network, a message indicating one or more sets of power control parameters associated with at least one transmission information, wherein the user device is scheduled to simultaneously transmit uplink transmissions that are fully or partially overlapped within a time domain and associated with individual transmission information; determining, based on the message, at least one transmission power of the uplink transmissions; and a method comprising the steps of:

2. The uplink transmission comprises at least one of an uplink signal transmission opportunity, an uplink signal repetition, or an uplink signal comprising PUCCH, PUSCH, SRS, or PRACH, and the transmission information comprises at least one of information for grouping one or more reference signals, a reference signal resource set, a PUCCH resource set, panel related information, a subarray, an antenna group, an antenna port group, a group of antenna ports, a beam group, a beam state, a physical cell index (PCI), TRP related information, a CORESET pool index, an index of a TCI state at a TCI state code point, a UE capability value, or a UE capability set. The method according to claim 1.

3. The method according to claim 1, further comprising obtaining, by the user device, an association between the message and the transmission information based on the message.

4. The method according to claim 1, wherein the determining of the transmission power comprises determining a total transmission power of the uplink transmissions or determining an individual transmission power for each uplink transmission.

5. The method according to claim 4, further comprising determining an actual value of a power control parameter used to determine the total transmission power, wherein the actual value is determined as one of an average, a sum, a weighted average value, or a maximum or minimum value of the received values of the power control parameter associated with the individual transmission information.

6. The method according to claim 4, further comprising determining the individual transmission power based on a plurality of power control parameters associated with the individual transmission information.

7. The method according to claim 5, further comprising transmitting, by the user device, to the network, a report message including at least one of the actual value of the power control parameter, an index of transmission information associated with the actual value, or a flag of the actual value of the power control parameter.

8. The method according to claim 4, further comprising distributing the total transmission power to each uplink transmission based on the message associated with the at least one transmission information.

9. The method according to claim 1, wherein the determination of the transmission power includes limiting the transmission power of the uplink transmission so as not to exceed the maximum output power associated with the at least one transmission information.

10. The method according to claim 9, wherein the maximum output power is determined based on the message associated with the at least one transmission information.

11. The method according to claim 1, further comprising determining at least one scaling factor for at least one of the uplink transmissions when the total transmission power of the uplink transmissions exceeds the maximum transmission power.

12. The method according to claim 11, wherein the scaling factor is determined based on the message associated with the at least one transmission information.

13. The method according to claim 1, further comprising receiving, from the network, a message indicating that the transmission power of the uplink transmission associated with the specific transmission information does not require scaling.

14. The method according to claim 13, further comprising determining a scaling factor for the transmission power of the uplink transmission associated with the specific transmission information to have a value for skipping the scaling of the transmission power of the uplink transmission.

15. The method according to claim 14, wherein the value is 1.

16. The method according to claim 1, further comprising determining at least one scaling factor for limiting the transmission power of at least one of the uplink transmissions when the total transmission power of the uplink transmissions exceeds the maximum output power within the transmission duration.

17. The method according to claim 16, wherein the transmission power of the uplink transmission is scaled based on the priority order of the uplink transmission.

18. The method according to claim 17, wherein the priority is determined based on the message associated with the at least one transmission information.

19. The method according to claim 17, wherein the uplink transmission carries the same uplink control information (UCI) type and is associated with different transmission information.

20. The method according to claim 16, wherein the transmission power of a plurality of uplink transmissions with the same priority is scaled when the sum of the transmission power of the uplink transmission with a higher priority and the plurality of uplink transmissions satisfies a condition determined in advance.

21. The method according to any one of claims 16 to 20, wherein the scaling factor of the uplink transmission is determined based on the message associated with at least one transmission information.

22. A method of wireless communication, comprising: transmitting, by a network, a message including at least one set of power control parameters to a user device; receiving, by the network, from the user device, transmissions that overlap in the time domain and are associated with individual transmission information, wherein the transmissions have a transmission power that is determined and scaled based on the message associated with at least one transmission information so as not to exceed the maximum output power; and a method comprising.

23. The method according to claim 22, further comprising receiving, by the network, from the user device, a report message including at least one of an actual value of the power control parameter, an index of transmission information associated with the actual value, or a flag of the actual value of the power control parameter.

24. The method according to claim 22, wherein the transmission power is determined based on at least one scaling factor for at least one transmission when the total transmission power of the transmission exceeds the maximum output power with respect to the carrier component, and the scaling factor is determined based on the message.

25. The method according to claim 22, further comprising transmitting, by the network, to the user device, a message indicating that the transmission power of a certain transmission associated with specific transmission information does not require scaling.

26. The transmission power of the said transmission is scaled based on a scaling factor in order to limit the transmission power of the said transmission when the total transmission power of the said transmission exceeds the maximum output power within the transmission duration time, the method according to claim 22.

27. The transmission power of a transmission is scaled based on a priority rule, and the priority of the transmission is determined based on the said message, which is associated with the at least one transmission information, the method according to claim 26.

28. The transmission powers of a plurality of uplink transmissions with the same priority are scaled when transmissions with higher priority and the sum of the transmission powers of the said plurality of uplink transmissions satisfy a pre-determined condition, the method according to claim 26.

29. The said power control parameter comprises at least one of a target received power value, a transmission power control (TPC) command, an index of a reference signal for path loss measurement, a modulation and coding scheme, the number of occupied physical resources, a channel format, or a bandwidth, and the said message further comprises at least one of the determined transmission power, an indication of weighting, a default coefficient, a coefficient indication, an indication of transmission information, a measured value of path loss associated with PL-RS, the number of SRS resource ports, the number of antenna ports, a UE capability value, a pre-defined value, or an index of a pre-defined value set, the method according to any one of claims 1 to 28.

30. A communication device comprising a processor configured to implement the method according to any one or more of claims 1 to 29.

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