Waveform switching with closed loop power control

Abstract

The embodiment of the invention relates to equipment, a method, a device and a computer readable storage medium for uplink power control. A first device receives a first DCI that schedules a first PUSCH transmission at a first TO, and a second DCI that schedules a second PUSCH transmission at a second TO following the first TO. The first device determines a transmit power based on the second power adjustment state and transmits a second PUSCH transmission at a second transmit power. The transmit power and / or the second power control adjustment state is determined based on at least one of a first maximum transmit power at the first TO, a second maximum transmit power at the second TO, a value of a first TPI field of the first DCI, a value of a second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

Description

Technical Field

[0001] Various example embodiments of the present disclosure relate generally to the field of telecommunications, and in particular to methods, devices, apparatus, and computer-readable storage media for dynamic waveform switching with closed-loop power control. Background Art

[0002] In a communication system, the uplink power control process determines the transmission power of different uplink physical channels (e.g., Physical Uplink Control Channel (PUCCH) and Physical Uplink Shared Channel (PUSCH)) or signals (e.g., Sounding Reference Signal (SRS), Physical Random Access Channel (PRACH), etc.).

[0003] In practice, it is often necessary to increase or decrease the transmission power of a user equipment (UE) or mobile device. This is called uplink power control. The transmission power is increased to meet the required signal-to-noise ratio (SNR) or block error rate (BLER) at the network equipment. The transmission power is reduced to minimize the co-channel interference of the communication system. There are two types of power control, namely open-loop power control and closed-loop power control. Power control is an important technology in communication systems to ensure reliable and efficient data transmission. By adjusting the transmission power level, it can improve the coverage and capacity of the network while reducing interference to other cells or users. Summary of the invention

[0004] In a first aspect of the present disclosure, a first device is provided. The first device includes: at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, causes the first device to at least: receive first downlink control information (DCI) and second DCI from a second device, the first DCI scheduling a first PUSCH transmission at a first transmission opportunity (TO), and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator (TPI) field, the value of the first (TPI) field indicating whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicating whether the transform precoder is enabled for the first PUSCH transmission. whether the precoder is enabled for the second PUSCH transmission; determining the transmission power for the second PUSCH transmission according to the second power control adjustment state, wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: the first maximum transmission power at the first TO, the second maximum transmission power at the second TO, the value of the first TPI field of the first DCI, the value of the second TPI field in the second DCI, or the first power control adjustment state of the first PUSCH transmission; and transmitting the second PUSCH transmission with the determined transmission power for the second PUSCH transmission.

[0005] In a second aspect of the present disclosure, a second device is provided. The second device includes: at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, causes the second device to at least: transmit a first DCI and a second DCI to the first device, the first DCI scheduling a first PUSCH transmission at a first TO and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether the transform precoder is enabled for the second PUSCH transmission enabling; and receiving a second PUSCH transmission from the first device at a transmission power for a second PUSCH transmission, wherein the transmission power for the second PUSCH transmission is determined according to a second power control adjustment state, and wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of a first TPI field in the first DCI, a value of a second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

[0006] In a third aspect of the present disclosure, a method is provided. The method includes: receiving a first DCI and a second DCI from a second device, the first DCI scheduling a first PUSCH transmission at a first TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether the transform precoder is enabled for the second PUSCH transmission; determining a transmission power for the second PUSCH transmission according to a second power control adjustment state, wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field of the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission; and transmitting the second PUSCH transmission at the determined transmission power for the second PUSCH transmission.

[0007] In a fourth aspect of the present disclosure, a method is provided. The method includes: transmitting a first DCI and a second DCI to a first device, the first DCI scheduling a first PUSCH transmission at a first TO and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether the transform precoder is enabled for the second PUSCH transmission; and receiving a second PUSCH transmission from the first device at a transmission power for the second PUSCH transmission, wherein the transmission power for the second PUSCH transmission is determined according to a second power control adjustment state, and wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field in the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

[0008] In a fifth aspect of the present disclosure, a first device is provided. The first device includes: a component for receiving a first DCI and a second DCI from a second device, the first DCI scheduling a first PUSCH transmission at a first TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether the transform precoder is enabled for the second PUSCH transmission; a component for determining a transmission power for a second PUSCH transmission according to a second power control adjustment state, wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field of the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission; and a component for transmitting the second PUSCH transmission at the determined transmission power for the second PUSCH transmission.

[0009] In a sixth aspect of the present disclosure, a second device is provided. The second device includes: a component for sending a first DCI and a second DCI to a first device, the first DCI scheduling a first PUSCH transmission at a first TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether the transform precoder is enabled for the second PUSCH transmission; and a component for receiving a second PUSCH transmission from the first device at a transmission power for the second PUSCH transmission, wherein the transmission power for the second PUSCH transmission is determined according to a second power control adjustment state, and wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field in the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

[0010] In a seventh aspect of the present disclosure, a computer-readable medium is provided, wherein the computer-readable medium includes instructions stored thereon, and the instructions are used to cause a device to at least execute the method according to the third aspect.

[0011] In an eighth aspect of the present disclosure, a computer-readable medium is provided, wherein the computer-readable medium includes instructions stored thereon, and the instructions are used to cause a device to at least execute the method according to the fourth aspect.

[0012] It should be understood that the invention summary is not intended to identify the key features or essential features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Some example embodiments will now be described with reference to the accompanying drawings, in which:

[0014] Figure 1A An example communication environment is shown in which example embodiments of the present disclosure may be implemented;

[0015] Figure 1B A diagram showing the situation when the dynamic waveform switching (DWS) feature is used with closed loop power control (CLPC);

[0016] Figure 2 shows a signaling diagram for uplink power control according to some example embodiments of the present disclosure;

[0017] Figure 3 shows a signaling diagram for uplink power control according to a further example embodiment of the present disclosure;

[0018] Figure 4 shows a signaling diagram for uplink power control according to a further example embodiment of the present disclosure;

[0019] Figure 5 shows a signaling diagram for uplink power control according to a further example embodiment of the present disclosure;

[0020] Figure 6 shows a signaling diagram for uplink power control according to a further example embodiment of the present disclosure;

[0021] Figure 7 A flowchart showing a method implemented at a first device according to some example embodiments of the present disclosure is shown;

[0022] Figure 8 A flowchart showing a method implemented at a second device according to some example embodiments of the present disclosure is shown;

[0023] Fig. 9 shows a simplified block diagram of a device suitable for implementing an example embodiment of the present disclosure; and

[0024] Fig.10A block diagram of an example computer-readable medium is shown according to some example embodiments of the present disclosure.

[0025] Throughout the drawings, the same or similar reference numerals refer to the same or similar elements. DETAILED DESCRIPTION

[0026] The principles of the present disclosure will now be described with reference to some example embodiments. It should be understood that these embodiments are described only for illustrative purposes and to help those skilled in the art understand and implement the present disclosure without implying any limitation on the scope of the present disclosure. The embodiments described herein can be implemented in various ways except for the ways described below.

[0027] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0028] In this disclosure, references to "one embodiment," "an embodiment," "an example embodiment," etc. indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is considered to be within the knowledge of those skilled in the art to affect such feature, structure, or characteristic in conjunction with other embodiments, whether or not explicitly described.

[0029] It should be understood that, although the terms "first", "second" etc. in front of nouns etc. can be used to describe various elements in this article, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element, and they do not limit the order of nouns. For example, without departing from the scope of the exemplary embodiment, the first element can be referred to as the second element, and similarly, the second element can be referred to as the first element. As used herein, the term "and / or" includes any and all combinations of one or more listed terms.

[0030] As used herein, “at least one of: ” and “at least one of ” and similar expressions (wherein a list of two or more elements is connected by “and” or “or”) refer to at least any one of the elements, or at least any two or more of the elements, or at least all of the elements.

[0031] As used herein, unless explicitly stated, performing a step “in response to A” does not mean performing the step immediately after “A” occurs, but may include one or more intermediate steps.

[0032] The terms used herein are only used for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that when used herein, the terms "include", "comprise", "have", "have", "include" and / or "include" specify the presence of features, elements and / or parts, etc., but do not exclude the presence or addition of one or more other features, elements, parts and / or combinations thereof.

[0033] As used in this application, the term "circuitry" may refer to one or more or all of the following:

[0034] a) hardware circuit implementation only (e.g., implementation only in analog and / or digital circuits), and

[0035] b) a combination of hardware circuitry and software such as (if applicable):

[0036] i) a combination of analog and / or digital hardware circuits and software / firmware, and

[0037] ii) any portion of a hardware processor (including a digital signal processor) with software, software and memory that work together to enable a device such as a mobile phone or server to perform various functions; and

[0038] c) A hardware circuit and / or processor that requires software (eg, firmware) for operation, such as a microprocessor or portion of a microprocessor, but the software may not be present when not needed for operation.

[0039] This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit or processor (or multiple processors) or a portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to a particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in a server, cellular network device, or other computing or network device.

[0040] As used herein, the term "communication network" refers to a network that complies with any suitable communication standard, for example, New Radio (NR), Long Term Evolution (LTE), Advanced LTE (LTE-A), Wideband Code Division Multiple Access (WCDMA), High Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. In addition, the communication between the terminal device and the network device in the communication network can be performed according to any suitable generation communication protocol, including but not limited to the first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, fifth generation (5G), sixth generation (6G) communication protocol and / or any other protocol currently known or developed in the future. The embodiments of the present disclosure can be applied to various communication systems. In view of the rapid development of communication, there are of course future types of communication technologies and systems that can implement the present disclosure. It should not be considered that the scope of the present disclosure is limited to the above-mentioned system.

[0041] As used herein, the term "network device" refers to a node in a communication network via which a terminal device accesses the network and receives services from it. A network device may refer to a base station (BS) or an access point (AP), such as a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a NR NB (also referred to as a gNB), a remote radio unit (RRU), a radio head (RH), a remote radio head (RRH), a repeater, an integrated access and backhaul (IAB) node, a low-power node such as a femto, a micro), a non-terrestrial network (NTN) or a non-terrestrial network device (such as a satellite network device, a low earth orbit (LEO) satellite and a geosynchronous orbit (GEO) satellite, an aircraft network device, etc.), depending on the terminology and technology applied. In some example embodiments, a radio access network (RAN) split architecture includes a centralized unit (CU) and a distributed unit (DU) at an IAB donor node. An IAB node includes a mobile terminal (IAB-MT) portion that behaves like a UE toward a parent node, and a DU portion of an IAB node behaves like a base station toward a next-hop IAB node.

[0042] The term "terminal device" refers to any terminal device capable of wireless communication. As an example and not limitation, the terminal device may also be referred to as a communication device, a user equipment (UE), a subscriber station (SS), a portable subscriber station, a mobile station (MS) or an access terminal (AT). The terminal device may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet computer, a wearable terminal device, a personal digital assistant (PDA), a portable computer, a desktop computer, an image capture terminal device such as a digital camera, a game terminal device, a music storage and playback facility, a vehicle-mounted wireless terminal device, a wireless endpoint, a mobile station, a laptop embedded device (LEE), a laptop mounted device (LME), a USB dongle, a smart device, a wireless user equipment (CPE), an Internet of Things (IoT) device, a watch or other wearable device, a head mounted display (HMD), a vehicle, a drone, medical equipment and applications (e.g., remote surgery), industrial equipment and applications (e.g., robots and / or other wireless devices operating in industrial and / or automatic processing chain environments), consumer electronic devices, equipment operating on commercial and / or industrial wireless networks, etc. The terminal device may also correspond to the mobile terminal (MT) part of an IAB node (eg, a relay node).In the following description, the terms "terminal device", "communication device", "terminal", "user equipment" and "UE" may be used interchangeably.

[0043] As used herein, the terms "resource", "transmission resource", "resource block", "physical resource block" (PRB), "uplink resource" or "downlink resource" may refer to any resource used to perform communication (e.g., communication between a terminal device and a network device), such as a resource in the time domain, a resource in the frequency domain, a resource in the spatial domain, a resource in the code domain, or any other combination of time domain, frequency domain, spatial domain and / or code domain resources to achieve communication. In the following, unless explicitly stated, resources in the frequency domain and the time domain will be used as examples of transmission resources for describing some example embodiments of the present disclosure. It should be noted that the example embodiments of the present disclosure are also applicable to other resources in other domains.

[0044] Figure 1A An example communication environment 100 in which example embodiments of the present disclosure may be implemented is shown. As shown in Figure 1, the communication network 100 may include a first device 110, which may be, for example, a terminal device. Hereinafter, the first device 110 may also be referred to as a UE in some example embodiments.

[0045] The communication network 100 may also include a second device 120, which may be, for example, a network device. In some example embodiments, the second device 120 may also be referred to as a BS, a gNB, or an eNB. The first device 110 may communicate with the second device 120 within the coverage of the second device 120, for example, the geographic area of ​​the first device 110 is served by a satellite beam or cell from the second device 120.

[0046] It should be understood that Figure 1A The number of network devices and terminal devices shown in is given for illustrative purposes and does not imply any limitation. Communication network 100 may include any suitable number of network devices and terminal devices.

[0047] In the following, for the purpose of illustration, some example embodiments are described in which the first device 110 operates as a terminal device and the second device 120 operates as a network device. However, in some example embodiments, the operations described in conjunction with the terminal device may be implemented at a network device or other device, and the operations described in conjunction with the network device may be implemented at a terminal device or other device.

[0048] In some example embodiments, if the first device 110 is a terminal device and the second device 120 is a network device, the link from the second device 120 to the first device 110 is referred to as a downlink (DL), and the link from the first device 110 to the second device 120 is referred to as an uplink (UL). In the DL, the second device 120 is a transmission (TX) device (or transmitter), and the first device 110 is a reception (RX) device (or receiver). In the UL, the first device 110 is a TX device (or transmitter), and the second device 120 is an RX device (or receiver).

[0049] Communications in the communication environment 100 may be implemented according to any appropriate communication protocol, including but not limited to cellular communication protocols of the first generation (1G), second generation (2G), third generation (3G), fourth generation (4G), fifth generation (5G), sixth generation (6G), etc., wireless local area network communication protocols such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, etc., and / or any other protocol currently known or developed in the future. In addition, communications may utilize any appropriate wireless communication technology, including but not limited to: code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), frequency division duplex (FDD), time division duplex (TDD), multiple input multiple output (MIMO), orthogonal frequency division multiple access (OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM) and / or any other technology currently known or developed in the future.

[0050] As mentioned above, there are two types of power control, namely open loop power control and closed loop power control. In open loop power control (OLPC), there is no feedback from the first device (e.g., UE) to the second device (e.g., gNB) or from the gNB to the UE. However, in closed loop power control (CLPC), the UE power is dynamically controlled by the transmit power control (TPC) command (MAC CE or TPC field in DCI 0_0 / 0_1, DCI format 2_2, or UL grant via Msg2 during initial access). This means that the UE transmit power is controlled by some direct inputs, which are provided by the gNB based on, for example, previous UL measurements or previous reports received by the UE. Therefore, the overall power control process forms a loop (closed loop). With CLPC, each UE in the cell receives a command from the gNB to increase / decrease the transmit power or keep it constant (e.g., if it is already at an optimal level). This type of power control solves the problem of non-optimized UL power (too low or too high). Typically, this has a beneficial effect on the link under consideration (eg, increasing its budget and robustness) and / or has a beneficial effect on other links (eg, reducing interference levels).

[0051] The determination of uplink (UL) power control is described below. If a user equipment (UE) uses a parameter set configuration with index j and a reference signal (RS) resource with index l and index q d The PUSCH power control adjustment state is set to 0, and the physical uplink shared channel (PUSCH) is transmitted on the active UL bandwidth part (BWP) b of the carrier f of the serving cell c. The UE determines the PUSCH transmission power P in the PUSCH transmission opportunity (TO) i according to the following equation: PUSCH,b,f,c (i,j,q d ,l):

[0052]

[0053] in:

[0054] P CMAX,f,c (i) is the maximum output power of carrier f of serving cell c configured by the UE in PUSCH transmission opportunity i,

[0055] P O_PUSCH,b,f,c (j) is composed of the component P O_NOMINAL,PUSCH,f,c (j) and the component P O_UE_PUSCH,b,f,c (j), where j∈{0,1,…,J-1},

[0056] μ is related to the configured New Radio (NR) numerology (subcarrier spacing),

[0057] depicts the bandwidth of the PUSCH resource distribution, expressed as the number of allocated resource blocks for PUSCH,

[0058] α b,f,c is a power adjustment factor determined by at least one of: msg3-Alpha, ConfiguredGrantConfig, p0-PUSCH-alpha, p0-PUSCH-alphSet, SRI-PUSCHPowerControl, the Send Routing Information (SRI) field in Downlink Control Information (DCI) format 0_0 / 0_1,

[0059] PL b,f,c (q d ) is the reference signal (RS) resource index q on the active UL BWP b on carrier f used by the UE in serving cell c d To calculate the downlink path loss estimate in dB,

[0060] Δ TF,b,f,c is the modulation and coding scheme (MCS) offset that adjusts the power control to the used MCS. This term may be set to 0 if the gNB dynamically adjusts the MCS to compensate for changes in channel quality or conditions. However, when the gNB does not use MCS adaptation for dynamic channel condition compensation, the gNB may instruct the UE to adjust the PUSCH transmit power according to the MCS, i.e., increase the Tx power for higher MCS values. For single-layer PUSCH containing UL-SCH data, the MCS offset is determined by Δ TF,b,f,c =10log 12 =(2 BPRE·1.25 -1)) is given. This equation is based on Shannon's capacity theorem (C = Blog 9 (1+SINR)) is approximated. When assuming that NR reaches 80% of the ideal Shannon capacity, the signal to interference plus noise ratio (SINR) is solved according to the theorem. The bits per resource element (BPRE) is given by Given, where C is the number of transmitted code blocks, K r is the size of code block r, and N RE is the number of resource elements allocated for PUSCH, excluding resource elements used for demodulation reference signal (DMRS) and phase tracking reference signal,

[0061] f b,f,c (i, l) is the PUSCH power control adjustment state for transmission opportunity i of the active UL BWP b and possible accumulated transmit power control (TPC) command value for carrier f of serving cell c,

[0062] The PUSCH transmission power is given by PCMAX,f,c (i) is limited, which is defined as the maximum UE output power for a given waveform / configuration. The UE can set P in each time slot. CMAX,f,c value, as long as P CMAX,f,c It can be set within the boundaries:

[0063] P CMAX_L,f,c ≤P CMAX,f,c ≤P CMAX_H,f,c ,

[0064] Where P CMAX_L,f,c =MIN{P EMAX,c –ΔT C,c , (P PowerClass –ΔP PowerClass )–MAX(MAX(MPR c +ΔMPR c ,A-MPR c )+ΔT IB,c +ΔT C,c +ΔT RxSRS ,P–MPR c )} and P CMAX_H,f,c =MIN{P EMAX,c ,P PowerClass –ΔP PowerClass}.

[0065] Of particular interest for the present disclosure is the PC equation (i.e., f b,f,c The last item of (i,l) is usually called the PUSCH power control adjustment state. i The PUSCH power control adjustment state of the active UL BWP b of carrier f in serving cell c, δ PUSCH,b,f,c (i, l) is the TPC command value included in the DCI format, which schedules PUSCH TO on the active UL BWP b of carrier f of serving cell c. i , or jointly encoded with other TPC commands in DCI format 2_2 with a CRC scrambled by a radio network temporary identifier (RNTI) called TPC-PUSCH-RNTI, and is fundamental in the calculation of . Specifically, is a cardinality C(D i ) of the TPC command values ​​D i The sum of the TCP command values ​​in , which is the PUSCH active UL BWPb of the UE on carrier f of serving cell c for PUSCH power control adjustment state l. Previous K PUSCH (ii 0 )-1 symbol and PUSCH TOi Previous K PUSCH (i) symbols received, where i 0 >0 is the smallest integer for which PUSCH Previous K PUSCH (ii 0 ) symbol is earlier than PUSCHTO i Previous K PUSCH (i) symbol. For the case of PUSCH transmission scheduled by DCI format, K PUSCH (i) is the number of symbols of active UL BWP b for carrier f of serving cell c after the last symbol of the corresponding PDCCH reception and before the first symbol of PUSCH transmission.

[0066] For example, for two PUSCH TOs (i=0 and i=1) scheduled by two PDCCHs at time t0 and t1, where t1>t0, i 0 =1, in PUSCH TO 0 Previous K PUSCH (0) Symbols earlier than in PUSCHTO 1 Previous K PUSCH (1) symbol. In this case, is a cardinality C(D i ) of the TPC command values ​​D i The sum of the TCP command values ​​in PUSCH TO 0 Previous K PUSCH (0) Symbols and PUSCH TO 1 Previous K PUSCH (1) Received between symbols.

[0067] In existing designs, the waveform is configured by RRC. However, given the robustness of discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) in terms of peak to average power ratio (PAPR), dynamic (fast) switching from cyclic prefix OFDM (CP-OFDM) to DFT-s-OFDM is beneficial in cases of insufficient coverage. Therefore, a feature is defined, which is generally referred to as dynamic switching between DFT-s-OFDM and CP-OFDM (or dynamic waveform switching). This feature allows the network to indicate in a scheduling DCI (with format 0_1 ​​or 0_2) the waveform to be applied to PUSCH transmissions scheduled by the DCI. In other words, the DCI indicates whether the transform precoder is enabled or disabled for PUSCH transmission. This feature is enabled when the dynamic transform precoder indication information element (e.g., dynamicTransformPrecoderIndicationDCI-0-1 in pusch-Config for DCI format 0_1 ​​or dynamicTransformPrecoderIndicationDCI-0-2 in pusch-Config for DCI format 0_2) is configured and set to enabled in the PUSCH-Config information element of the BWP where the DCI is received. When this feature is enabled, the Transform Precoder Indicator (TPI) field is present in the DCI. When the TPI field value is set to 0, the transform precoder is enabled for PUSCH transmissions scheduled by the DCI (i.e., DFT-s-OFDM is applied). When the (TPI) field value is set to 1, the transform precoder is disabled for PUSCH transmissions scheduled by the DCI (i.e., CP-OFDM is applied).

[0068] Figure 1B Graph 150 shows an example of the problem when the dynamic waveform switching (DWS) feature is used in conjunction with closed loop power control (CLPC).

[0069] express from Figure 1B It can be observed that if the UE is instructed to use cyclic prefix OFDM (CP-OFDM) (i.e., TPID field = 1) and reaches the The maximum transmission power for PUSCH transmission at TO is then indicated to be used by the UE. i DFT-s-OFDM of another PUSCH transmission at (ie, TPI field = 0), since in this case, f i Must be equal to f i-i0 restrictions, the UE cannot be used in TO iThe PUSCH transmission at TO is transmitted with the maximum power of discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM). i Any TPC commands received at TO for increasing the power of PUSCH transmissions may not be accumulated. This will cause the DWS feature to i The benefit brought by the DFT-s-OFDM waveform is invalid, that is, the power gap provided by the DFT-s-OFDM waveform is utilized, such as Figure 1B Note that this example assumes that the maximum power of DFT-s-OFDM is higher than the maximum power of CP-OFDM, which is the maximum power of TO i It should also be noted that in this example it is assumed that A i =A i-i0 (i.e., the lower limit of the gap). However, in practice, in the case of switching from CP-OFDM to DFT-s-OFDM (due to the expectation of coverage shortage), the gNB will apply a smaller number of resource blocks and MCS, which results in A i i-i0 , and therefore larger gaps cannot be utilized.

[0070] As described above, the problem with dynamic waveform switching (DWS) with CLPC is that if the waveform is dynamically switched at transmission opportunity i, but the UE 0 (also referred to as TO in the rest of this application) TO i-i0 The maximum transmission power of the active UL BWP b of carrier f of serving cell c is reached at , and at the same time, the power control adjustment determined by TPC is greater than or equal to zero, even if the downlink control information (DCI) schedules TO i The TPC command in may be greater than 0, and the UE must also be TO i Setting f b,f,c (i,l)=f b,f,c (ii 0 ,l). In fact, there is the following rule: If the UE is already at the PUSCH transmission opportunity ii 0 The maximum power of the active UL BWPb of carrier f of serving cell c is reached at Then f b,f,c (i,l)=f b,f,c (ii 0 ,l).

[0071] To avoid the above limitation, one approach may be to follow the current specification of the first TO after DWS so that when the second consecutive TO of the new waveform (if any) occurs, the power in the first TO is no longer at the maximum level (maximum power), so that f​b,f,c (i,l) can start increasing again. However, this approach would defeat the main benefit from the dynamic waveform switching feature, where, using the TPI field in the DCI, the UE should be able to switch waveforms at each TO and dynamically exploit the gain of maximum available power with the switch. Therefore, according to the current specification, the UE must experience at least two consecutive TOs of the same waveform to fully exploit the expected advantage of waveform switching in coverage-limited scenarios (i.e., maximum transmit power advantage).

[0072] In this context, the above equation (1) allows the UE to achieve Pcmax if the number of PRBs allocated for PUSCH (i.e., M_PRB) or the MCS index is increased, which is different from f in the current specification. b,f,c Increasing the M_PRB allocation is one possible approach, however, due to the coarse PRB allocation granularity with DFT-S-OFDM, even using DWS may result in worse coverage, since for DFT-s-OFDM: #RB=2 a 3 b 5 c Following the rule of , the allocation should increase by at least 2 RBs. Additionally, the non-ideal granularity of the configurable MCS index set may not provide a suitable value to compensate for the EPRE reduction brought by a larger number of allocated PRBs for PUSCH, and the MCS index may already be low, so a smaller MCS may not be possible (depending on the link adaptation strategy of the gNB on the number of PRBs considered). Similarly, MCS increase may allow reaching Pcmax for DFT-S-OFDM, but is not the preferred approach in low coverage scenarios.

[0073] Considering the benefits of the dynamic waveform switching feature (using the TPI field) and the possibility of using the dynamic waveform switching feature at each TO along with closed loop power control between the UE and the gNB, methods for enabling waveform switching to DFT-S-OFDM at any TO without any restrictions on UL power transmission (at maximum level) have not yet been specified / discussed (nor excluded - they may be proposed). The embodiments of the present disclosure focus primarily on solving the above-mentioned problem to fill the gap, thereby enabling waveform switching to DFT-S-OFDM while closed loop power control is applied between the UE and the gNB without any restrictions on the UE UL power transmission level.

[0074] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Figure 2 , which shows a signaling diagram 200 for uplink power control according to some example embodiments of the present disclosure. Figure 2As shown, the signaling diagram 200 involves the first device 110 and the second device 120. For the purpose of discussion, reference is made to Figure 1A To describe the signaling diagram 200. Figure 2 A single first device 110 is shown in FIG. 1 , but it can be understood that there may be multiple terminal devices that perform similar operations as described with respect to the first device 110 below.

[0075] like Figure 2 As shown, the second device 120 transmits (205) a first DCI and a second DCI to the first device 110. The first DCI schedules a first PUSCH transmission at a first transmission opportunity (TO), and the second DCI schedules a second PUSCH transmission at a second TO after the first TO. The first DCI includes a first TPI field whose value indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field whose value indicates whether the transform precoder is enabled for the second PUSCH transmission.

[0076] The first device 110 receives (210) the first DCI and the second DCI, and determines (215) a transmission power for the second PUSCH transmission based on the second power control adjustment state. The transmission power and / or the second power control adjustment state for the second PUSCH transmission are determined based on various factors, such as, but not limited to, a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of a first TPI field in the first DCI, a value of a second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

[0077] As used herein, the terms "transmission power" and "transmit power" are used interchangeably. Both terms refer to the power used to transmit a signal.

[0078] The first device 110 then transmits (220) a second PUSCH transmission at the determined transmission power to the second device 120. Accordingly, the second device 120 receives (225) the second PUSCH transmission from the first device 110 at the transmission power determined at 215.

[0079] At 215, there are various ways for the first device 110 to determine the transmission power and / or the second power control adjustment state.

[0080] In some example embodiments, the second power control adjustment state may be determined first, and then the transmission power is calculated based thereon. Specifically, if the first device 110 reaches the first maximum transmission power at the first TO, and the value of the TPI field of the second DCI indicates that the transform precoder is enabled for the second PUSCH transmission, then the first device 110 may also determine whether the first device will reach the second maximum transmission power at the second TO when the second power control adjustment state is set equal to the first power control adjustment state. If so, the first device 110 may determine that the second power control adjustment state is equal to the first power control adjustment state. The first device 110 may then calculate the transmission power based on the determined second power control adjustment state. On the other hand, if the first device 110 will not reach the second maximum transmission power at the second TO, the first device 110 may determine that the second power control adjustment state is equal to the sum of the first power control adjustment state and the first adjustment value.

[0081] Alternatively, in some example embodiments, the transmission power may be calculated directly. For example, if the first device 110 reaches a first maximum transmission power at the first TO, and the value of the TPI field of the second DCI indicates that the transform precoder is enabled for the second PUSCH transmission, then the first device 110 determines whether the first device 110 will reach a second maximum transmission power at the second TO when the second power control adjustment state is set equal to the first power control adjustment state.

[0082] If the first device 110 will not reach the second maximum transmission power at the second TO, the first device 110 may determine the transmission power based on the second power control adjustment state and the first adjustment value, whereby the second power control adjustment state is equal to the first power control adjustment state.

[0083] The first adjustment value may be defined or configured or calculated in various ways. In some example embodiments, the first adjustment value may be a first predefined value, which may be fixed, for example, in a specification, for example, the first adjustment value may be defined as 1. Alternatively, the first adjustment value may be a first configuration value configured via a higher layer signaling (e.g., RRC signaling).

[0084] As another alternative, the first adjustment value may be calculated in several ways. For example, the first adjustment value may be a value calculated by adding a plurality of TPC command values ​​received via DCI over a period of time (also referred to as a "first calculated value"). Alternatively, the first adjustment value may be another value calculated based on the first maximum transmission power and the second maximum transmission power (also referred to as a "second calculated value").

[0085] It should be understood that the above examples of the first adjustment value are discussed for illustration only and do not imply any limitation. In other example embodiments of the present disclosure, any other suitable value may be applicable to the first adjustment value.

[0086] As another alternative, in some example embodiments, if the first device 110 reaches the first maximum transmission power at the first TO, the first device 110 may determine whether the value of the TPI field of the first DCI (also referred to as the "first TPI field") is equal to the value of the TPI field of the second DCI (also referred to as the "second TPI field"). If the value of the first TPI field is equal to the value of the second TPI field, the first device 110 may determine that the second power control adjustment state is equal to the first power control adjustment state. On the other hand, if the value of the TPI field of the first DCI is different from the value of the TPI field of the second DCI, the first device 110 may determine that the second power control adjustment state is equal to the sum of the first power control adjustment state and the second adjustment value.

[0087] Alternatively, in some example embodiments, if the first device 110 reaches the first maximum transmission power at the first TO, the first device 110 may determine whether the value of the TPI field of the first DCI is equal to the value of the TPI field of the second DCI. If the value of the TPI field of the first DCI is different from the value of the TPI field of the second DCI, the first device 110 may determine the transmission power based on the second power control adjustment state and the second adjustment value, whereby the second power control adjustment state is equal to the first power control adjustment state.

[0088] In some example embodiments, the second adjustment value may be, for example, a second predefined value that is fixed in a specification. Alternatively, a second configuration value configured via high-layer signaling. As another alternative, the second adjustment value may be a third calculated value determined by adding a plurality of TPC command values ​​received via DCI over a period of time, or a fourth calculated value determined based on the first maximum transmission power and the second maximum transmission power. It should be understood that the above examples of the second adjustment value are discussed for illustration only and do not imply any limitation. In other example embodiments of the present disclosure, any other suitable value may be applicable to the second adjustment value.

[0089] In some example embodiments, if the first device 110 reaches a first maximum transmission power at the first TO, and the first maximum transmission power at the first TO is greater than or equal to a third maximum transmission power to be applied by the first device 110 when the transform precoder is enabled for the first PUSCH transmission, the first device 110 may determine that the second power control adjustment state is equal to the first power control adjustment state.

[0090] Alternatively, if the first device 110 reaches the sum of the first maximum transmission power at the first TO and the third adjustment value, the first device 110 may determine that the second power control adjustment state is equal to the first power control adjustment state.

[0091] The third adjustment value may be a third predefined value, a third configuration value configured via higher layer signaling (eg, RRC signaling), and / or other suitable values.

[0092] In some example embodiments, second device 120 may transmit to first device 110 a high-level signaling including a first configuration value for the first adjustment value, a second configuration value for the second adjustment value, etc. In this way, first device 110 may obtain the first configuration value and / or the second configuration value from second device 120.

[0093] In this way, the gap enables the waveform to switch to DFT-S-OFDM while closed-loop power control is filled between the UE and gNB without any restrictions on the UE uplink power transmission level.

[0094] Reference Figures 3 to 6 Further example embodiments of uplink power control are discussed in detail. In the following example embodiments, the first device 110 is sometimes referred to as a "UE" and the second device 120 is sometimes referred to as a "gNB".

[0095] In an exemplary embodiment of the present disclosure, the DWS specific condition is set in the UE. b,f,c (i, l) was proposed before. It is assumed that the dynamic waveform switching feature is enabled. That is, the UE is configured with the higher layer parameter dynamicTransformPrecoderIndicationDCI-0-1 in pusch-Config for DCI format 0_1 ​​or dynamicTransformPrecoderIndicationDCI-0-2 in pusch-Config for DCI format 0_2, and the higher layer parameter is set to "enabled".

[0096] As used herein, the term DFT-s-OFDM may also be referred to as "transform precoder enabled", and the term CP-OFDM may also be referred to as "transform precoder disabled". When the dynamic waveform switching feature is enabled, the "Transform Precoder Indicator" field is present in the DCI for all TOs. For example, if the TO i If the "Transform Precoder Indicator" field in the DCI for scheduling PUSCH transmission is set to 0, the UE applies DFT-s-OFDM for PUSCH transmission. iIf the "Transform Precoder Indicator" field in the DCI scheduling PUSCH transmission is set to 1, the UE applies CP-OFDM for PUSCH transmission.

[0097] In some example embodiments, The PUSCH transmission at (the first TO) is referred to as the "first PUSCH transmission". i The PUSCH transmission at (the second TO) is referred to as "the second PUSCH transmission". i yes The first DCI is Schedule PUSCH transmission, and the second DCI is in TO i The transmission power to be used for the second PUSCH transmission may be based on The maximum transmission power at TO (also called the "first maximum transmission power"), i the maximum transmission power at (also referred to as the "second maximum transmission power"), the value of the first TPI field in the first DCI, the value of the second TPI field in the second DCI, or the value of the second TPI field in the second DCI. The first power control adjustment state of the PUSCH transmission at the location is determined.

[0098] In some example embodiments, TO i The maximum power at TO i The waveform indicated by P CMAX,f,c (i). This depends on the i The transformed precoder indicator field in the DCI of the PUSCH transmission scheduled at

[0099] Example embodiments provide various solutions for uplink power control. In the first solution, if the UE The maximum power is reached at TO, and the transform precoder indicator field is i is set to 0 if the UE uses f b,f,c (i,l)=f b,f,c (ii 0 ,l) in TO i The maximum power is reached at , then the UE sets f b,f,c (i,l)=f b,f,c (ii 0 ,l), otherwise, set f b,f,c (i,l)=f b,f,c (ii 0 ,l)+a.

[0100] The value a represents the first adjustment value as described above. In one example, the value a may be fixed, for example, a=1. In another example, the value a may be configured by the NW via RRC. In another example, as described above, the network (NW) uses the traditional DCI format and To provide a suitable TPC command value. In another example, the value a can be calculated by the UE, for example, P calculated at CMAX,f,c (ii 0 ) minus the TO i P calculated at CMAX,f,c (i). It should be noted that a can also be added directly in equation (1) of P_PUSCH. Figure 3 The first solution is described in detail.

[0101] In a second solution according to some example embodiments of the present disclosure, if the UE The maximum power is achieved at TO and only when the transform precoder indicator field is in TO i and When both are set to the same value, the UE sets f b,f,c (i,l)=f b,f,c (ii 0 ,l). It should be understood that this solution has the following advantages: whenever the value of the transform precoder indicator field is in TO i Set to a different When the value is set, the Tx power limitation does not apply.

[0102] Otherwise, if the UE is The maximum power is reached at , and if the Transform Precoder Indicator field is in TO i and If the settings are different, the UE can set f b,f,c (i,l)=f b,f,c (ii 0 ,l)+β. The value β represents the second adjustment value as described above.

[0103] In one example, β may be fixed, for example, β=1. In another example, β may be configured by the NW via RRC. In another example, the NW uses a conventional DCI format and To provide a suitable TPC command value, as defined above. In yet another example, β may be calculated by the UE, for example, or where, for a given configuration and MPR / A-MPR / P-MPR values, and are the maximum output powers of CP-OFDM and DFT-s-OFDM, respectively. It should be noted that β can also be added directly in equation (1) for P_PUSCH or within another parameter in equation (1) for P_PUSCH.

[0104] In some example embodiments, if DFT-s-OFDM is used in TO i Indicated And provide implicit transmission power increase to improve coverage immediately without at least one explicit TPC command. i If An implicit power reduction is provided to meet the CP-OFDM maximum power constraint without the need for one or more explicit TPC commands. If the gNB receives a PHR carrying information related to both waveforms, the two variants can be calculated by the UE and can also be estimated by the gNB. Figures 4 to 5 The second solution is described in detail.

[0105] In a third solution according to some example embodiments of the present disclosure, if the UE The maximum power is achieved at When the maximum power of the transmission at the location does not depend on the configured waveform, the UE sets f b,f,c (i,l)=f b,f,c (ii 0 ,l). This may happen, for example, when the limiting factor for Pcmax is a factor other than maximum power reduction (MPR), such as adaptive maximum power reduction (A-MPR) / P-MPR (due to specific absorption rate (SAR) considerations, duty cycle excess, carrier aggregation (CA) operation, etc.). In this case, the maximum power used for transmission will be the same regardless of whether the UE is transmitting using DFT-s-OFDM or CP-OFDM. Figure 6 The second solution is described in detail.

[0106] Reference now Figure 3 , which shows a signaling diagram 300 for dynamic waveform switching according to some example embodiments of the present disclosure. In the following, for illustrative purposes, some example embodiments are described with reference to FIG. 1 , in which the first device 110 operates as a UE and the second device 120 operates as a gNB.

[0107] The second device 120 transmits (305) the configuration of the first adjustment value to the first device 110 via the RRC configuration. For example, such configuration of the first adjustment value may include parameter a and / or UL closed loop power control with P_PUSCH. iis configured so that the transform precoder indicator field is present in the DCI, and parameter a may be set to i Indication f b,f,c (i, l). The first device 110 receives (310) the configuration and transmits (315) a first PUSCH transmission (eg, PUSCH TO) at maximum power to the second device 120. i-i0 ).

[0108] The second device 120 receives (320) the first PUSCH transmission and transmits (325) the DCI to the first device 110 to schedule the TO i The first device 110 receives (330) the DCI and determines (335) the second transmission power. For example, the first device 110 receives (330) the DCI and determines (335) the second transmission power. i The transmission power at f is determined by b,f,c (i, l). For example, according to DCI scheduling TO i The first device 110 determines the TPC command If the first device 110 is The maximum power is reached at the first device 110 and the first device 110 has been set to the maximum power for TO i The maximum power transmission of the first device 110 is set to 0, and the transform precoder indicator field is set to 0. i Setting f b,f,c (i,l)=f b,f,c (ii 0 , l). Otherwise, if the first device 110 does not have a TO i If the maximum power transmission is selected, or the transform precoder indicator field is not set to 0 in the scheduling DCI field, then f b,f,c (i,l)=f b,f,c (ii 0 ,l)+a.

[0109] The first device 110 applies ( 340 ) the determined UE operation mode (ie, waveform and power) for the next UL transmission (eg, new waveform).

[0110] Figure 4 A signaling diagram 400 for dynamic waveform switching according to some example embodiments of the present disclosure is shown. In the following, for illustration purposes, some example embodiments are described with reference to FIG. 1 , in which the first device 110 operates as a UE and the second device 120 operates as a gNB.

[0111] The first device 110 transmits (405) a first PUSCH transmission to the second device 120 at maximum power. For example, the first device 110 transmits the PUSCH TO with CP-OFDM as a waveform and at maximum power for CP-OFDM.i-i0 The second device 120 receives (410) the first PUSCH transmission at maximum power and transmits (415) a DCI to the first device 110, the DCI scheduling the PUSCH transmission to be transmitted with CP-OFDM. For example, the second device 120 transmits an indication in TO i Being Compared with the same waveform (ie, for TO i The first device 110 receives (420) the DCI and determines (425) the second transmission power. For example, the first device 110 determines (425) the second transmission power based on the DCI in TO i The transmission power at f is determined by b,f,c (i,l). For example, according to DCI scheduling TO i The first device 110 determines the TPC command Even if the UE is already in TO i-i0 andTO i The same waveform is used to target Additionally, the first device 110 applies (430) the determined UE operation mode (ie, waveform and power) for the next UL transmission (eg, new waveform).

[0112] Figure 5 A signaling diagram 500 for dynamic waveform switching according to some example embodiments of the present disclosure is shown. In the following, for illustration purposes, some example embodiments are described with reference to FIG. 1 , in which the first device 110 operates as a UE and the second device 120 operates as a gNB.

[0113] The second device 120 transmits (505) the configuration of the second adjustment value to the first device 110 via the RRC configuration. For example, such configuration of the second adjustment value may include a parameter β and / or a UL closed loop power control with P_PUSCH. i is configured so that the transform precoder indicator field is present in the DCI, and the parameter β may be set to i Indication f b,f,c (i, l). The first device 110 receives (510) the configuration of the second adjustment value and transmits (515) a first PUSCH transmission to the second device 120 using CP-OFDM at maximum power. For example, the first device 110 may use CP-OFDM as a waveform and transmit the PUSCH at maximum power for CP-OFDM. i-i0The second device 120 receives (520) a first PUSCH transmission from the first device 110 and transmits (525) a DCI to the first device 110, the DCI scheduling a PUSCH transmission to be transmitted with DFT-S-OFDM. For example, the second device 120 transmits an indication in the RO i in The waveforms are different compared to the TO i DFT-S-OFDM) DCI to schedule TO i .

[0114] The first device 110 receives (530) the DCI and determines (535) the second transmission power. i The transmission power at f is determined by b,f,c (i,l). According to the schedule TO i The first device 110 determines the TPC command of the DCI Even if the UE has already i-i0 andTO i Different waveforms between for TO i-i0 The maximum power transmission of the first device 110 is still TO i Setting f b,f,c (i,l)=f b,f,c (ii 0 ,l)+β.

[0115] The first device 110 applies ( 540 ) the determined UE operation mode (ie, waveform and power) for the next UL transmission (eg, new waveform).

[0116] Figure 6 A signaling diagram 600 for dynamic waveform switching according to some example embodiments of the present disclosure is shown. In the following, for illustration purposes, some example embodiments are described with reference to FIG. 1 , in which the first device 110 operates as a UE and the second device 120 operates as a gNB.

[0117] The second device 120 transmits (605) the configuration of the first adjustment value to the first device 110 via the RRC configuration. For example, the configuration of the first adjustment value may include UL closed-loop power control with P_PUSCH, wherein at least one TO i is configured so that the α parameter can be set to indicate TO i f b,f,cWhether (i, l) depends on other factors detailed above. The first device 110 receives (610) the configuration of the first adjustment value and transmits (615) a first PUSCH transmission to the second device 120 with CP-OFDM or DFT-S-OFDM at maximum power. For example, the first device 110 can transmit PUSCH with CP-OFDM as the waveform and at the maximum power for CP-OFDM or DFT-S-OFDM. i-i0 The second device 120 receives (620) the first PUSCH transmission and transmits (625) a DCI with CP-OFDM or DFT-S-OFDM to the first device 110. For example, the second device 120 indicates that the PUSCH transmission is in the TO state. i Department and Compared to the DCI transform precoder indicator field of different or same waveform, to schedule TO i .

[0118] The first device 110 receives (630) the DCI and determines (635) the second transmission power. i The first device 110 determines the TPC command of the DCI If the first device 110 has been used for TO i-i0 The maximum power transfer and for TO i-i0 The maximum power does not depend on the configured waveform (e.g., Pcmax is a factor other than MPR, such as A-MPR / P-MPR), even in TO i-i0 andTO i The same waveform between or between TO i-i0 andTO i The different waveforms between them are configured, the first device 110 is TO i Setting f b,f,c (i,l)=f b,f,c (ii 0 ,l).

[0119] The first device 110 applies ( 640 ) the determined UE operation mode (ie, waveform and power) for the next UL transmission (eg, new waveform).

[0120] Figure 7 A flow chart of an example method 700 implemented at a first device according to some example embodiments of the present disclosure is shown. For discussion purposes, the method 700 will be described from the perspective of the first apparatus 110 in FIG.

[0121] At box 710, the first device 110 receives first downlink control information (DCI) and second DCI from the second device 120, the first DCI scheduling a first physical uplink shared channel (PUSCH) transmission at a first transmission opportunity (TO), and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator (TPI) field, the value of which indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of which indicates whether the transform precoder is enabled for the second PUSCH transmission.

[0122] At box 720, the first device 110 determines the transmission power for the second PUSCH transmission based on the second power control adjustment state, wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: the first maximum transmission power at the first TO, the second maximum transmission power at the second TO, the value of the first TPI field of the first DCI, the value of the second TPI field in the second DCI, or the first power control adjustment state for the first PUSCH transmission.

[0123] At block 730 , the first device 110 transmits a second PUSCH transmission at the determined transmit power for the second PUSCH transmission.

[0124] In some example embodiments, method 700 further includes: determining whether the first device will reach a second maximum transmission power at the second TO based on determining that the first device reaches a first maximum transmission power at the first TO, and the value of the second TPI field of the second DCI indicates that the transform precoder is enabled for the second PUSCH transmission, when the second power control adjustment state is set to be equal to the first power control adjustment state; and determining that the second power control adjustment state is equal to the first power control adjustment state based on determining that the first device will reach the second maximum transmission power at the second TO.

[0125] In some example embodiments, method 700 further includes: determining whether the first device will reach a second maximum transmission power at the second TO based on determining that the first device reaches a first maximum transmission power at the first TO, and the value of the second TPI field of the second DCI indicates that the transform precoder is enabled for the second PUSCH transmission, when the second power control adjustment state is set to be equal to the first power control adjustment state; and determining that the second power control adjustment state is equal to the sum of the first power control adjustment state and the first adjustment value based on determining that the first device will not be able to reach the second maximum transmission power at the second TO, and determining the transmission power for the second PUSCH transmission based on the second power control adjustment state.

[0126] In some example embodiments, method 700 further includes: determining whether the first device will reach a second maximum transmission power at the second TO based on determining that the first device reaches a first maximum transmission power at the first TO, and the value of the second TPI field of the second DCI indicates that the transform precoder is enabled for the second PUSCH transmission, when the second power control adjustment state is set to be equal to the first power control adjustment state; and determining the transmission power for the second PUSCH transmission based on the second power control adjustment state and the first adjustment value based on determining that the first device will not be able to reach the second maximum transmission power at the second TO, wherein the second power control adjustment state is equal to the first power control adjustment state.

[0127] In some example embodiments, the first adjustment value is at least one of: a first predefined value, a first configuration value configured via higher layer signaling, a first calculated value determined by adding transmit power control (TPC) command values ​​received via DCI over a period of time, or a second calculated value determined based on a first maximum transmission power and a second maximum transmission power.

[0128] In some example embodiments, method 700 further includes: determining whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and determining that the second power control adjustment state is equal to the first power control adjustment state based on determining that the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI.

[0129] In some example embodiments, method 700 further includes: determining whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and determining that the second power control adjustment state is equal to the sum of the first power control adjustment state and the second adjustment value based on determining that the value of the first TPI field of the first DCI is different from the value of the second TPI field of the second DCI, and determining the transmission power for the second PUSCH transmission based on the second power control adjustment state.

[0130] In some example embodiments, method 700 further includes: determining whether a value of a first TPI field of the first DCI is equal to a value of a second TPI field of the second DCI based on determining that the first device reaches a first maximum transmission power at a first TO; and determining a transmission power for a second PUSCH transmission based on a second power control adjustment state and a second adjustment value based on determining that the value of the first TPI field of the first DCI is different from the value of the second TPI field of the second DCI, wherein the second power control adjustment state is equal to the first power control adjustment state.

[0131] In some example embodiments, the second adjustment value is at least one of the following values: a second predefined value, a second configuration value configured via higher layer signaling, a third calculated value determined by adding transmit power control (TPC) command values ​​received via DCI over a period of time, or a fourth calculated value determined based on the first maximum transmission power and the second maximum transmission power.

[0132] In some example embodiments, method 700 further includes determining that the second power control adjustment state is equal to the first power control adjustment state based on determining that the first device reaches a first maximum transmission power at the first TO, and the first maximum transmission power at the first TO is greater than or equal to a third maximum transmission power, wherein the third maximum transmission power will be applied by the first device when the transform precoder is enabled for the first PUSCH transmission.

[0133] In some example embodiments, the method 700 further includes determining that the second power control adjustment state is equal to the first power control adjustment state based on determining that the first device reaches a sum of a first maximum transmission power at the first TO and a third adjustment value.

[0134] In some example embodiments, the third adjustment value is at least one of the following values: a third predefined value, or a third configuration value configured via higher layer signaling.

[0135] In some example embodiments, the first device 110 includes a terminal device, and the second device 120 includes a network device.

[0136] Figure 81. A flow chart of an example method 800 implemented at a second device according to some example embodiments of the present disclosure is shown. For discussion purposes, the method 800 will be described from the perspective of the second apparatus 120 in FIG.

[0137] At box 810, the second device 120 transmits first downlink control information (DCI) and second DCI to the first device 110, the first DCI scheduling a first physical uplink shared channel (PUSCH) transmission at a first transmission opportunity (TO), and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator (TPI) field, the value of which indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of which indicates whether the transform precoder is enabled for the second PUSCH transmission.

[0138] At box 820, the second device 120 receives a second PUSCH transmission from the first device 110 at a transmission power for the second PUSCH transmission, wherein the transmission power for the second PUSCH transmission is determined according to a second power control adjustment state, and wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of a first TPI field in the first DCI, a value of a second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

[0139] In some example embodiments, method 800 further includes sending high-layer signaling to the first device, the high-layer signaling including at least one of the following: a first configuration value for the first adjustment value, a second configuration value for the second adjustment value, or a third configuration value for the third adjustment value.

[0140] In some example embodiments, the first device 110 includes a terminal device, and the second device 120 includes a network device.

[0141] In some example embodiments, a first device (e.g., first device 110 in FIG. 1 ) capable of performing any of the methods in method 700 may include a component for performing the corresponding operation of method 700. The component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module. The first device may be implemented as or included in first device 110 in FIG. 1 .

[0142] In some example embodiments, the first device includes: a component for receiving a first DCI and a second DCI from a second device, the first DCI scheduling a first physical uplink shared channel (PUSCH) transmission at a first TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first TPI field whose value indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field whose value indicates whether the transform precoder is enabled for the second PUSCH transmission; a component for determining a transmission power for the second PUSCH transmission according to a second power control adjustment state, wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field of the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission; and a component for transmitting the second PUSCH at the determined transmission power for the second PUSCH transmission.

[0143] In some example embodiments, the first device also includes: a component for determining whether the first device will reach a second maximum transmission power at a second TO based on determining that the first device reaches a first maximum transmission power at the first TO and the value of the second TPI field of the second DCI indicates that the transform precoder is enabled for the second PUSCH transmission, and the second power control adjustment state is set to be equal to the first power control adjustment state; and a component for determining that the second power control adjustment state is equal to the first power control adjustment state based on determining that the first device will reach the second maximum transmission power at the second TO.

[0144] In some example embodiments, the first device further includes: a component for determining whether the first device will reach a second maximum transmission power at a second TO based on determining that the first device reaches a first maximum transmission power at a first TO and the value of a second TPI field of a second DCI indicates that a transform precoder is enabled for a second PUSCH transmission, and a second power control adjustment state is set to be equal to the first power control adjustment state; and a component for determining that the second power control adjustment state is equal to the sum of the first power control adjustment state and the first adjustment value based on determining that the first device will not be able to reach the second maximum transmission power at the second TO, and a component for determining the transmission power for the second PUSCH transmission based on the second power control adjustment state.

[0145] In some example embodiments, the first device also includes: a component for determining whether the first device will reach a second maximum transmission power at a second TO based on determining that the first device reaches a first maximum transmission power at a first TO and the value of the second TPI field of the second DCI indicates that the transform precoder is enabled for a second PUSCH transmission, and the second power control adjustment state is set to be equal to the first power control adjustment state; and a component for determining a transmission power for the second PUSCH transmission based on the second power control adjustment state and the first adjustment value based on determining that the first device will not be able to reach the second maximum transmission power at the second TO, wherein the second power control adjustment state is equal to the first power control adjustment state.

[0146] In some example embodiments, the first adjustment value is at least one of the following values: a first predefined value, a first configuration value configured via higher layer signaling, a third calculated value determined by adding transmit power control (TPC) command values ​​received via DCI over a period of time, or a second calculated value determined based on the first maximum transmission power and the second maximum transmission power.

[0147] In some example embodiments, the first device also includes: a component for determining whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and a component for determining that the second power control adjustment state is equal to the first power control adjustment state based on determining that the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI.

[0148] In some example embodiments, the first device also includes: a component for determining whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and a component for determining that the second power control adjustment state is equal to the sum of the first power control adjustment state and the second adjustment value based on determining that the value of the first TPI field of the first DCI is different from the value of the second TPI field of the second DCI, and a component for determining the transmission power for the second PUSCH transmission based on the second power control adjustment state.

[0149] In some example embodiments, the first device also includes: a component for determining whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and a component for determining the transmission power for the second PUSCH transmission based on the second power control adjustment state and the second adjustment value based on determining that the value of the first TPI field of the first DCI is different from the value of the second TPI field of the second DCI, wherein the second power control adjustment state is equal to the first power control adjustment state.

[0150] In some example embodiments, the second adjustment value is at least one of the following values: a second predefined value, a second configuration value configured via higher layer signaling, a third calculated value determined by adding transmit power control (TPC) command values ​​received via DCI over a period of time, or a fourth calculated value determined based on the first maximum transmission power and the second maximum transmission power.

[0151] In some example embodiments, the first device further includes: a component for determining that the second power control adjustment state is equal to the first power control adjustment state based on determining that the first device reaches a first maximum transmission power at the first TO and the first maximum transmission power at the first TO is greater than or equal to a third maximum transmission power, wherein the third maximum transmission power is to be applied by the first device when the transform precoder is enabled for the first PUSCH transmission.

[0152] In some example embodiments, the first apparatus further comprises means for determining that the second power control adjustment state is equal to the first power control adjustment state based on determining that the first apparatus reaches a first maximum transmission power at the first TO plus a third adjustment value.

[0153] In some example embodiments, the third adjustment value is at least one of the following values: a third predefined value, or a third configuration value configured via higher layer signaling.

[0154] In some example embodiments, the first apparatus comprises a terminal device and the second apparatus comprises a network device.

[0155] In some example embodiments, the first device further comprises means for performing the method 700 or other operations in some example embodiments of the first device 110. In some example embodiments, the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the first device.

[0156] In some example embodiments, a second device (e.g., second device 120 in FIG. 1 ) capable of performing any of the methods in method 800 may include a component for performing the corresponding operation of method 800. The component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module. The second device may be implemented as or included in the second device 120 in FIG. 1 .

[0157] In some example embodiments, the second device includes: a component for transmitting a first DCI and a second DCI to the first device, the first DCI scheduling a first PUSCH transmission at a first TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether the transform precoder is enabled for the second PUSCH transmission; and a component for receiving the second PUSCH transmission from the first device at a transmission power for the second PUSCH transmission, wherein the transmission power for the second PUSCH transmission is determined according to a second power control adjustment state, and wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field in the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

[0158] In some example embodiments, the second device further comprises: a component for transmitting high-layer signaling to the first device, the high-layer signaling comprising at least one of: a first configuration value for the first adjustment value, a second configuration value for the second adjustment value, or a third configuration value for the third adjustment value.

[0159] In some example embodiments, the first apparatus comprises a terminal device and the second apparatus comprises a network device.

[0160] In some example embodiments, the second device further comprises means for performing the method 800 or other operations in some example embodiments of the second device 120. In some example embodiments, the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause performance of the second device.

[0161] Fig. 91 is a simplified block diagram of a device 900 suitable for implementing an example embodiment of the present disclosure. The device 900 may be provided to implement a communication device, for example, the first device 110 or the second device 120 as shown in FIG. 1. As shown, the device 900 includes one or more processors 910, one or more memories 920 coupled to the processor 910, and one or more communication modules 940 coupled to the processor 910.

[0162] The communication module 940 is used for two-way communication. The communication module 940 has one or more communication interfaces to support communication with one or more other modules or devices. The communication interface may represent any interface necessary for communication with other network elements. In some example embodiments, the communication module 940 may include at least one antenna.

[0163] Processor 910 may be of any type suitable for the local technology network, and may include, as non-limiting examples, one or more of a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Device 900 may have multiple processors, such as application specific integrated circuit chips that are time slaved to a clock of a synchronized main processor.

[0164] The memory 920 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 924, electrically programmable read-only memory (EPROM), flash memory, hard disk, compact disk (CD), digital video disk (DVD), optical disk, laser disk, and other magnetic storage and / or optical storage. Examples of volatile memories include, but are not limited to, random access memory (RAM) 922 and other volatile memories that will not persist for the duration of a power outage.

[0165] The computer program 930 includes computer executable instructions executed by the associated processor 910. The instructions of the program 930 may include instructions for performing the operations / actions of some example embodiments of the present disclosure. The program 930 may be stored in a memory, such as ROM 924. The processor 910 may perform any suitable actions and processes by loading the program 930 into the RAM 922.

[0166] The exemplary embodiments of the present disclosure may be implemented by a program 930 so that the device 900 may execute the Figures 2 to 8 Any process of the present disclosure discussed. The exemplary embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.

[0167] In some example embodiments, the program 930 may be tangibly embodied in a computer-readable medium that may be included in the device 900 (such as in the memory 920) or in other storage devices accessible by the device 900. The device 900 may load the program 930 from the computer-readable medium to the RAM 922 for execution. In some example embodiments, the computer-readable medium may include any type of non-transitory storage medium, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. The term "non-transitory" as used herein is a limitation on the medium itself (i.e., tangible rather than a signal), not a limitation on data storage persistence (e.g., RAM vs. ROM).

[0168] Fig.10 An example of a computer readable medium 1000 is shown, which may be in the form of a CD, DVD or other optical storage disk. The computer readable medium 1000 has a program 930 stored thereon.

[0169] Generally, various embodiments of the present disclosure may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, and other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of the present disclosure are illustrated and described as block diagrams, flow charts, or using some other graphical representations, it should be understood that, as non-limiting examples, the blocks, devices, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuits or logic, general hardware or controllers or other computing devices, or some combination thereof.

[0170] Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer-readable medium (such as, non-volatile computer-readable medium). The computer program product includes computer executable instructions, such as those computer executable instructions executed in a device on a target physical or virtual processor included in a program module to perform any method as described above. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The functionality of the program modules can be combined or split between program modules as needed in various embodiments. The machine executable instructions for the program modules can be executed in local or distributed devices. In distributed devices, program modules can be located in local and remote storage media.

[0171] The program code for executing the method of the present disclosure may be written in any combination of one or more programming languages. The program code may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the program code is executed by the processor or controller, the implementation of the functions / operations specified in the flowchart and / or block diagram is realized. The program code may be executed entirely on the machine, partially on the machine, as an independent software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0172] In the context of the present disclosure, computer program codes or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform various processes and operations as described above. Examples of carriers include signals, computer readable media, etc.

[0173] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination thereof. A more specific example of a computer readable storage medium may include an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage component, a magnetic storage component, or any suitable combination thereof.

[0174] In addition, although the operations are depicted in a specific order, this should not be understood as requiring the specific order shown or in a sequential order to perform these operations, or to perform all described operations, to achieve the desired result. In some cases, multitasking and parallel processing can be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be interpreted as limitations on the scope of the present disclosure, but should be interpreted as descriptions of features that may be specific to a specific embodiment. Unless explicitly stated, certain features described in the context of a separate embodiment may also be implemented in combination in a single embodiment. On the contrary, unless explicitly stated, the various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable sub-combination.

[0175] Although the present disclosure has been described in language specific to structural features and / or methodological actions, it should be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are disclosed as example forms of implementing the claims.

[0176] This disclosure provides the following examples:

[0177] Example 1. A first device for communication, comprising: at least one processor; and at least one memory, wherein the at least one memory stores instructions, and when the instructions are executed by the at least one processor, the first device at least: receives first downlink control information DCI and second DCI from a second device, wherein the first DCI schedules a first physical uplink shared channel PUSCH transmission at a first transmission opportunity TO, and the second DCI schedules a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the second TPI word The value of the segment indicates whether the transform precoder is enabled for the second PUSCH transmission; determining the transmission power for the second PUSCH transmission according to a second power control adjustment state, wherein at least one of the transmission power for the second PUSCH transmission and the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: the first maximum transmission power at the first TO, the second maximum transmission power at the second TO, the value of the first TPI field of the first DCI, the value of the second TPI field in the second DCI, or the first power control adjustment state for the first PUSCH transmission; and transmitting the second PUSCH transmission at the determined transmission power for the second PUSCH transmission.

[0178] Example 2. A first device according to Example 1, wherein the first device is configured to: determine whether the first device will reach the second maximum transmission power at the second TO based on determining that the first device reaches the first maximum transmission power at the first TO, and the value of the second TPI field of the second DCI indicates that the transform precoder is enabled for the second PUSCH transmission, when the second power control adjustment state is set to be equal to the first power control adjustment state; and determine that the second power control adjustment state is equal to the first power control adjustment state based on determining that the first device will reach the second maximum transmission power at the second TO.

[0179] Example 3. A first device according to Example 1, wherein the first device is configured to: determine whether the first device will reach the second maximum transmission power at the second TO based on determining that the first device reaches the first maximum transmission power at the first TO and the value of the second TPI field of the second DCI indicates that the transform precoder is enabled for the second PUSCH transmission, when the second power control adjustment state is set to be equal to the first power control adjustment state; and determine that the second power control adjustment state is equal to the sum of the first power control adjustment state and the first adjustment value based on determining that the first device will not be able to reach the second maximum transmission power at the second TO, and determine the transmission power for the second PUSCH transmission based on the second power control adjustment state.

[0180] Example 4. A first device according to Example 1, wherein the first device is configured to: determine whether the first device will reach the second maximum transmission power at the second TO based on determining that the first device reaches the first maximum transmission power at the first TO and the value of the second TPI field of the second DCI indicates that the transform precoder is enabled for the second PUSCH transmission, when the second power control adjustment state is set to be equal to the first power control adjustment state; and determine the transmission power for the second PUSCH transmission based on the second power control adjustment state and the first adjustment value based on determining that the first device will not be able to reach the second maximum transmission power at the second TO, wherein the second power control adjustment state is equal to the first power control adjustment state.

[0181] Example 5. A first device according to Example 3 or Example 4, wherein the first adjustment value is at least one of the following values: a first predefined value, a first configuration value configured via high-layer signaling, a first calculated value determined by adding multiple transmission power control TPC command values ​​received via DCI over a period of time, or a second calculated value determined based on the first maximum transmission power and the second maximum transmission power.

[0182] Example 6. A first device according to Example 1, wherein the first device is configured to: determine whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and determine that the second power control adjustment state is equal to the first power control adjustment state based on determining that the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI.

[0183] Example 7. A first device according to Example 1, wherein the first device is configured to: determine whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and determine that the second power control adjustment state is equal to the sum of the first power control adjustment state and the second adjustment value based on determining that the value of the first TPI field of the first DCI is different from the value of the second TPI field of the second DCI, and determine the transmission power for the second PUSCH transmission based on the second power control adjustment state.

[0184] Example 8. A first device according to Example 1, wherein the first device is configured to: determine whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and determine the transmission power for the second PUSCH transmission based on the second power control adjustment state and the second adjustment value based on determining that the value of the first TPI field of the first DCI is different from the value of the second TPI field of the second DCI, wherein the second power control adjustment state is equal to the first power control adjustment state.

[0185] Example 9. A first device according to Example 7 or Example 8, wherein the second adjustment value is at least one of the following values: a second predefined value, a second configuration value configured via high-layer signaling, a third calculated value determined by adding multiple transmission power control TPC command values ​​received via DCI over a period of time, or a fourth calculated value determined based on the first maximum transmission power and the second maximum transmission power.

[0186] Example 10. A first device according to Example 1, wherein the first device is configured to: determine that the second power control adjustment state is equal to the first power control adjustment state based on determining that the first device reaches the first maximum transmission power at the first TO, and the first maximum transmission power at the first TO is greater than or equal to a third maximum transmission power, and the third maximum transmission power will be applied by the first device when the transform precoder is enabled for the first PUSCH transmission.

[0187] Example 11. A first device according to Example 1, wherein the first device is configured to: determine that the second power control adjustment state is equal to the first power control adjustment state based on determining that the first device reaches the sum of the first maximum transmission power at the first TO and a third adjustment value.

[0188] Example 12. The first apparatus of Example 11, wherein the third adjustment value is at least one of: a third predefined value, or a third configuration value configured via higher layer signaling.

[0189] Example 13. A first apparatus according to any one of Examples 1 to 12, wherein the first apparatus comprises a terminal device and the second apparatus comprises a network device.

[0190] Example 14. A second device for communication, comprising: at least one processor; and at least one memory, wherein the at least one memory stores instructions, which, when executed by the at least one processor, cause the second device to at least: transmit first downlink control information DCI and second DCI to the first device, wherein the first DCI schedules a first physical uplink shared channel PUSCH transmission at a first transmission opportunity TO, and the second DCI schedules a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission. indicating whether the transform precoder is enabled for the second PUSCH transmission; and receiving the second PUSCH transmission from the first device at the transmission power for the second PUSCH transmission, wherein the transmission power for the second PUSCH transmission is determined according to a second power control adjustment state, and wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field in the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

[0191] Example 15. A second device according to Example 14, wherein the second device is configured to: transmit high-layer signaling to the first device, the high-layer signaling comprising at least one of: a first configuration value for a first adjustment value, a second configuration value for a second adjustment value, or a third configuration value for a third adjustment value.

[0192] Example 16. The second apparatus of Example 14 or Example 15, wherein the first apparatus comprises a terminal device and the second apparatus comprises a network device.

[0193] Example 17. A method for communication, comprising: receiving, at a first device, first downlink control information DCI and a second DCI from a second device, the first DCI scheduling a first physical uplink shared channel PUSCH transmission at a first transmission opportunity TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator TPI field, the value of the first TPI field indicating whether a transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicating whether a transform precoder is enabled for the second PUSCH transmission Use; determine the transmission power for the second PUSCH transmission according to a second power control adjustment state, wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: the first maximum transmission power at the first TO, the second maximum transmission power at the second TO, the value of the first TPI field of the first DCI, the value of the second TPI field in the second DCI, or the first power control adjustment state for the first PUSCH transmission; and transmit the second PUSCH transmission with the determined transmission power for the second PUSCH transmission.

[0194] Example 18. A method for communication, comprising: transmitting, at a second device, first downlink control information DCI and a second DCI to a first device, the first DCI scheduling a first physical uplink shared channel PUSCH transmission at a first transmission opportunity TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator TPI field, the value of the first TPI field indicating whether a transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicating whether a transform precoder is enabled for the second PUSCH transmission; and The transmission power for the second PUSCH transmission is received from the first device, wherein the transmission power for the second PUSCH transmission is determined according to a second power control adjustment state, and wherein at least one of the transmission power for the second PUSCH transmission and the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field in the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

[0195] Example 19. A first device for communication, comprising: a component for receiving first downlink control information DCI and a second DCI from a second device, the first DCI scheduling a first physical uplink shared channel PUSCH transmission at a first transmission opportunity TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator TPI field, the value of the first TPI field indicates whether a transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether a transform precoder is enabled for the second PUSCH transmission; for A component for determining a transmission power for the second PUSCH transmission according to a second power control adjustment state, wherein at least one of the transmission power for the second PUSCH transmission and the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field of the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission; and a component for transmitting the second PUSCH transmission at the determined transmission power for the second PUSCH transmission.

[0196] Example 20. A second device for communication, comprising: a component for transmitting first downlink control information DCI and a second DCI to the first device, the first DCI scheduling a first physical uplink shared channel PUSCH transmission at a first transmission opportunity TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether the transform precoder is enabled for the second PUSCH transmission; and a component for transmitting a first downlink control information DCI and a second DCI to the first device, wherein the first DCI schedules a first physical uplink shared channel PUSCH transmission at a first transmission opportunity TO, and the second DCI schedules a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator TPI field, the value of the first TPI field indicates whether the transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicates whether the transform precoder is enabled for the second PUSCH transmission; and A component for receiving the second PUSCH transmission from the first device for a transmission power of the second PUSCH transmission, wherein the transmission power for the second PUSCH transmission is determined according to a second power control adjustment state, and wherein at least one of the transmission power for the second PUSCH transmission or the second power control adjustment state for the second PUSCH transmission is determined based on at least one of the following: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field in the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission.

[0197] Example 21. A computer-readable medium comprising instructions stored thereon, the instructions being used to cause an apparatus to at least perform the method according to Example 17 or 18.

Claims

1. A first device for communication, comprising: at least one processor; as well as at least one memory storing instructions, which, when executed by the at least one processor, cause the first device to at least: receiving first downlink control information DCI and second DCI from a second device, the first DCI scheduling a first physical uplink shared channel PUSCH transmission at a first transmission opportunity TO, and the second DCI scheduling a second PUSCH transmission at a second TO after the first TO, wherein the first DCI includes a first transform precoder indicator TPI field, the value of the first TPI field indicating whether a transform precoder is enabled for the first PUSCH transmission, and the second DCI includes a second TPI field, the value of the second TPI field indicating whether a transform precoder is enabled for the second PUSCH transmission; determining a transmission power for the second PUSCH transmission according to a second power control adjustment state, wherein at least one of the transmission power for the second PUSCH transmission and the second power control adjustment state for the second PUSCH transmission is determined based on at least one of: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field of the first DCI, a value of the second TPI field in the second DCI, or a first power control adjustment state for the first PUSCH transmission; and The second PUSCH transmission is transmitted at the determined transmit power for the second PUSCH transmission.

2. The first device according to claim 1, wherein the first device is configured to: Based on determining that the first apparatus reaches the first maximum transmission power at the first TO, and the value of the second TPI field of the second DCI indicates that a transform precoder is enabled for the second PUSCH transmission, determining whether the first apparatus will reach the second maximum transmission power at the second TO if the second power control adjustment state is set equal to the first power control adjustment state; and Based on determining that the first device will reach the second maximum transmission power at the second TO, the second power control adjustment state is determined to be equal to the first power control adjustment state.

3. The first device according to claim 1, wherein the first device is configured to: Based on determining that the first apparatus reaches the first maximum transmission power at the first TO, and the value of the second TPI field of the second DCI indicates that a transform precoder is enabled for the second PUSCH transmission, determining whether the first apparatus will reach the second maximum transmission power at the second TO if the second power control adjustment state is set equal to the first power control adjustment state; and According to determining that the second TO of the first device cannot reach the second maximum transmission power, determining that the second power control adjustment state is equal to the sum of the first power control adjustment state and a first adjustment value, and The transmission power for the second PUSCH transmission is determined based on the second power control adjustment state.

4. The first device according to claim 1, wherein the first device is configured to: Based on determining that the first apparatus reaches the first maximum transmission power at the first TO, and the value of the second TPI field of the second DCI indicates that a transform precoder is enabled for the second PUSCH transmission, determining whether the first apparatus will reach the second maximum transmission power at the second TO if the second power control adjustment state is set equal to the first power control adjustment state; and Based on determining that the second maximum transmission power cannot be reached at the second TO of the first device, the transmission power for the second PUSCH transmission is determined based on the second power control adjustment state and the first adjustment value, wherein the second power control adjustment state is equal to the first power control adjustment state.

5. The first device according to claim 3 or claim 4, wherein the first adjustment value is at least one of the following values: The first predefined value, A first configuration value configured via higher layer signaling, a first calculated value determined by adding a plurality of transmission power control TPC command values ​​received via DCI over a period of time, or A second calculated value is determined based on the first maximum transmission power and the second maximum transmission power.

6. The first device according to claim 1, wherein the first device is caused to: Determining whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and According to determining that the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI, determining that the second power control adjustment state is equal to the first power control adjustment state.

7. The first device according to claim 1, wherein the first device is caused to: Determining whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and According to determining that the value of the first TPI field of the first DCI is different from the value of the second TPI field of the second DCI, determining that the second power control adjustment state is equal to the sum of the first power control adjustment state and a second adjustment value, and The transmission power for the second PUSCH transmission is determined based on the second power control adjustment state.

8. The first device according to claim 1, wherein the first device is caused to: Determining whether the value of the first TPI field of the first DCI is equal to the value of the second TPI field of the second DCI based on determining that the first device reaches the first maximum transmission power at the first TO; and Based on determining that the value of the first TPI field of the first DCI is different from the value of the second TPI field of the second DCI, the transmission power for the second PUSCH transmission is determined based on the second power control adjustment state and the second adjustment value, wherein the second power control adjustment state is equal to the first power control adjustment state.

9. The first device according to claim 7 or claim 8, wherein the second adjustment value is at least one of the following values: The second predefined value, The second configuration value configured via higher layer signaling, a third calculated value determined by adding a plurality of transmission power control TPC command values ​​received via DCI over a period of time, or A fourth calculated value is determined based on the first maximum transmission power and the second maximum transmission power.

10. The first device according to claim 1, wherein the first device is caused to: Based on determining that the first device reaches the first maximum transmission power at the first TO, and the first maximum transmission power at the first TO is greater than or equal to a third maximum transmission power, which will be applied by the first device when the transform precoder is enabled for the first PUSCH transmission, determining that the second power control adjustment state is equal to the first power control adjustment state.

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