Systems and methods for reference signaling design and configuration

Abstract

Systems and methods for reference signaling design and configuration are provided. A wireless communication device (e.g., a UE) can determine at least one triggering condition for transmitting power margin information for at least one downlink (DL) physical channel or signal. The wireless communication device can transmit the power margin information to a wireless communication node in response to the at least one triggering condition.

Description

Technical Field

[0001] This disclosure generally relates to wireless communications, including but not limited to systems and methods for designing and configuring reference signaling for downlink transmission-related power control and / or associated signals. Background Technology

[0002] The standards organization Third Generation Partnership Project (3GPP) is currently specifying a new radio interface called 5G New Radio (5G NR) and a Next Generation Packet Core Network (NG-CN or NGC). 5G NR will have three main components: the 5G Access Network (5G-AN), the 5G Core Network (5GC), and User Equipment (UE). To facilitate the implementation of different data services and needs, the network elements (also known as network functions) of the 5GC have been simplified, with some elements being software-based and others hardware-based, allowing for customization as needed. Summary of the Invention

[0003] The exemplary embodiments disclosed herein relate to solving problems associated with one or more problems existing in the prior art, and provide additional features that will become apparent when taken in conjunction with the accompanying drawings and the following detailed description. Exemplary systems, methods, apparatuses, and computer program products are disclosed herein according to various embodiments. However, it should be understood that these embodiments are provided by way of example and not limitation, and that it will be apparent to those skilled in the art who have read this disclosure that various modifications can be made to the disclosed embodiments without departing from the scope of this disclosure.

[0004] At least one aspect relates to a system, method, apparatus, or computer-readable medium. A wireless communication device (e.g., a UE) can determine at least one triggering condition for transmitting power margin information for at least one downlink (DL) physical channel or signal. The wireless communication device can transmit the power margin information to a wireless communication node (e.g., a ground terminal, base station, gNB, eNB, repeater, or serving node) in response to the at least one triggering condition.

[0005] In some embodiments, at least one triggering condition may include at least one of the following: the wireless communication node operates at a power lower than its maximum output power; or the power of the received DL channel or signal is greater than / lower than a threshold, wherein the threshold is determined by at least one of the following: a Modulation and Coding Scheme (MCS) index table, an MCS, modulation, another DL channel or signal, Downlink Control Information (DCI) signaling, Medium Access Control Control Element (MAC CE) signaling, or higher-layer signaling; or a defined downlink reference signal is absent or configured, or a corresponding configuration is present or absent, wherein the defined downlink reference signal includes a Synchronization Signal Block (SSB), a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), or a Channel State Information Reference Signal (CSI-RS); or the DL channel or signal is indicated, configured, or scheduled using at least one of the following: modulation order, power, code rate, or transmit block size. Size (TBS), port, layer number, or one or more codewords; or the wireless communication device is in connected mode; or the wireless communication device receives a DCI scrambled by a predefined Radio Network Temporary Identifier (RNTI) from a wireless communication node.

[0006] In some embodiments, at least one triggering condition may include: (the wireless communication device) receiving signaling from a wireless communication node, the signaling including DCI signaling, MAC CE signaling, or higher-layer signaling (e.g., RRC signaling). The signaling may include at least one of the following: a timer, a time window, or a period. The wireless communication device may transmit power margin information according to the period. The wireless communication device may receive DL channels or signals at the period of transmitting power margin information.

[0007] In some embodiments, at least one triggering condition may include: the wireless communication node instructing the wireless communication node to enter or be in a network power saving mode. The network power saving mode may include: a sleep mode, which includes at least one of the following: deep sleep mode, light sleep mode, or macro sleep mode, and / or a transition time corresponding to a plurality of transition times for different network power saving modes.

[0008] In some embodiments, at least one DL channel or signal may include at least one of the following: Physical Downlink Control Channel (PDCCH), Demodulation Reference Signal (DMRS) of PDCCH; Physical Downlink Shared Channel (PDSCH), DMRS of PDSCH, Phase Tracking Reference Signal (PT-RS) of PDSCH; DMRS of SSB, PSS, SSS, Physical Broadcast Channel (PBCH), PBCH; CSI-RS, or Positioning Reference Signal (PRS). The triggering conditions for transmitting power headroom information for PDCCH may include at least one of the following: (detected / received) a PDCCH for transmitting power headroom information for DCI scrambled by RNTI; a PDCCH for transmitting power headroom information that can be configured by higher-layer signaling, the PDCCH having at least one of the following: a Search Space (SS) Identifier (ID) or a Control Resource Set (CORESET) ID; a PDCCH that can be transmitted over X symbols or time slots or a period of time, wherein X or the period of time is predefined or configured by higher-layer signaling or DCI signaling; or a PDCCH received at maximum power or before a timer overflows, wherein the timer can be predefined or configured by higher-layer signaling or DCI signaling.

[0009] In some embodiments, the triggering condition for transmitting power headroom information of a PDSCH may include at least one of the following: (receiving / detecting) its corresponding PDCCH may (or will) include a PDSCH of DCI scrambled by RNTI for transmitting power headroom information; its corresponding PDCCH may be configured by higher-layer signaling for transmitting power headroom information, and the PDCCH has at least one of the following: SSID or CORESET ID; its corresponding PDCCH or itself may be transmitted over X symbols or time slots or a period of time, wherein X or the period of time may be predefined or configured by higher-layer signaling or DCI signaling; its corresponding PDCCH or itself is received before a timer overflows, wherein the timer may be predefined or configured by higher-layer signaling or DCI signaling; a PDSCH scheduled using semi-persistent scheduling (SPS); a PDSCH that may carry MACCE signaling; or a PDSCH scheduled with a predetermined modulation order or a predetermined MCS index.

[0010] In some embodiments, the triggering conditions for transmitting power margin information for SSBs may include: an SSB associated with an SSB index indicated, predefined, or configured by or may be indicated, predefined, or configured by higher-layer signaling; an SSB associated with a set of SSBs indicated, predefined, or configured by or may be indicated by higher-layer signaling; an SSB in X symbols or time slots or a period of time, wherein X or a period of time is predefined or configured by or may be configured by higher-layer signaling or DCI signaling; an SSB in a half-frame; or an SSB in a period.

[0011] In some embodiments, the triggering conditions for transmitting power margin information for PRS may include: a PRS associated with an indication, predefined, or configured set of PRS resources; a PRS associated with an indication, predefined, or configured PRS resource; a PRS in X symbols or time slots or a period of time, wherein X or the period of time is or may be predefined or configured by higher-layer signaling or DCI signaling; or one or more PRS in a cycle or loop.

[0012] In some embodiments, the wireless communication device may receive a configuration via higher-layer signaling, MAC CE signaling, Non-Access Stratum (NAS) signaling, or signaling from a wireless communication node, wherein the configuration may indicate a time period for transmitting power headroom information. The wireless communication device may transmit power headroom information to the wireless communication node during this time period. The wireless communication device may transmit power headroom information for at least one DL physical channel or signal to the wireless communication node during this time period. This time period may include: one or more cycles of resources or resource sets of at least one DL physical channel or signal; a time window; X symbols or time slots or a period of time, wherein X or the period of time may be predefined or configured by higher-layer signaling or DCI signaling; or X ms, us, frames, or half-frames, wherein X may be predefined or configured by higher-layer signaling or DCI signaling.

[0013] In some embodiments, power headroom information may include a value, range, or set of power headrooms for at least one DL physical channel or signal, wherein the value, range, or set may be based on an absolute value, offset, or relative value. In some embodiments, power headroom information may include at least one of the following: a CORESET or CORESET pool ID; a serving cell ID; a Bandwidth Part (BWP) ID; a subband index; an MCS; an indication of whether Time Division Multiple Access (TDMA) or Frequency Division Multiple Access (FDMA) can be performed; a timeslot number; a frame number; an SSB index; a period position; a resource set or resource ID of a PRS, CSI-RS, or SSB; an ID of a search space or search space set; an ID of a BWP set, wherein a BWP set may include one or more BWPs; a port number; or a set of port numbers.

[0014] Wireless communication devices can send power margin information to wireless communication nodes via at least one of the following: Radio Resource Configuration (RRC) signaling, MAC CE signaling, NAS signaling, Channel State Information (CSI) reporting, Physical Uplink Control Channel (PUCCH) signaling, uplink (UL) channels or signals that may carry Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) or Negative Acknowledgement (NACK) messages, Physical Uplink Shared Channel (PUSCH) transmission, or UE assistance information.

[0015] In some embodiments, the wireless communication device may receive signaling from the wireless communication node. This signaling may include power information, activation or deactivation information, or silence information for at least one DL physical channel or signal. The signaling may include DCI signaling or MAC CE signaling. The DL physical channel or signal may include at least one of the following: PDCCH; DMRS of PDCCH; PDSCH; DMRS of PDSCH or PT-RS of PDSCH; SSB, PSS, SSS, DMRS of physical broadcast channel (PBCH), PBCH; CSI-RS; or PRS.

[0016] Power information may include: a value, range of values, or set of values ​​that may be based on absolute, offset, or relative values. MAC CE or DCI signaling used to indicate power information may include: a field indicating power information for at least one DL physical channel or signal. MAC CE or DCI signaling may include: another field indicating an identifier for a CSI-RS resource, an identifier for a CSI-RS resource set, a port number, a set of port numbers, an identifier for a BWP, or an identifier for a BWP set.

[0017] In some embodiments, MAC CE or DCI signaling may include joint encoding (e.g., integration or combination of information) to indicate power information and corresponding physical resources, wherein the corresponding physical resources may include at least one of the following: CSI-RS resources, a set of CSI-RS resources, a list of CSI-RS resource sets, all CSI-RS in one or more BWPs, CSI-RS resources corresponding to a port, CSI-RS resources corresponding to one or more ports, a wireless communication device, or a group of wireless communication devices.

[0018] DCI signaling may include at least one of the following: multiple blocks, wherein at least some blocks may have the same or different sizes, and each block has multiple bits; or multiple indicators / symbols, wherein at least some indicators / symbols may have the same or different sizes, and each indicator / symbol has multiple bits, wherein each block / indicator / symbol may include at least one of the following: power information, activation or deactivation information, silence information, or the ID of a CSI-RS resource, CSI-RS resource set, BWP, BWP set, or port number. DCI may be scrambled by a predefined or higher-layer configured RNTI; and / or DCI formats 2_3, 2_4, or 2_6 may be reused for DCI, or a new DCI format may be defined for DCI. DCI signaling may include multiple blocks, and the starting position of the first block among the multiple blocks may be determined / indicated / specified by MAC CE signaling or higher-layer signaling.

[0019] In some embodiments, at least one DL physical channel or signal may include periodic or semi-persistent CSI-RS. Power information for PDSCH transmissions, CSI-RS, PDCCH transmissions, PRS, or SSBs may be applied: after MAC CE or DCI signaling (e.g., after being received); k symbols, time slots, half-frames, frames, ms, or us after MAC CE or DCI signaling (e.g., after being received); or before a timer overflows, wherein the timer may be defined, configured, or indicated by DCI signaling, higher-layer signaling, or MAC CE signaling; or within X symbols or time slots or a period of time, wherein X or the period of time may be predefined or configured by higher-layer signaling, DCI signaling, or MAC CE signaling.

[0020] In some embodiments, the signaling may include activation information, which may include: an indication that at least one DL physical channel or signal or at least one DL physical channel or signal resource may be received after activation, wherein the DL physical channel or signal may include at least one of the following: CSI-RS, or SSB.

[0021] In some embodiments, the signaling may include deactivation information, which may include: an indication that at least one DL physical channel or signal or at least one DL physical channel or signal resource is (possibly) unreceiveable after deactivation, wherein the DL physical channel or signal may include at least one of the following: CSI-RS or SSB.

[0022] The signaling may include a silence message, which may include: an indication that at least one DL physical channel or signal or at least one DL physical channel or signal resource is (possibly) silenced after the silence message is received, wherein the DL physical channel or signal may include at least one of the following: CSI-RS or SSB.

[0023] At least one aspect relates to a system, method, apparatus, or computer-readable medium in which a wireless communication node (e.g., a ground terminal, base station, gNB, eNB, or serving node) can receive power margin information of at least one DL physical channel or signal from a wireless communication device (e.g., a UE). Power margin information can be transmitted to the wireless communication node in response to at least one triggering condition for transmitting the power margin information.

[0024] In some embodiments, a wireless communication node may send signaling to a wireless communication device. This signaling may include power information, activation or deactivation information, or muting information for at least one DL physical channel or signal. The signaling may include DCI or MAC CE signaling. Attached Figure Description

[0025] Various exemplary embodiments of this solution are described in detail below with reference to the accompanying drawings. The drawings are provided for illustrative purposes only and merely depict exemplary embodiments of the solution to aid the reader's understanding. Therefore, the drawings should not be construed as limiting the breadth, scope, or applicability of the solution. It should be noted that these drawings are not necessarily drawn to scale for clarity and ease of explanation.

[0026] Figure 1 An example cellular communication network that can implement the technology disclosed herein is shown according to embodiments of the present disclosure;

[0027] Figure 2 Block diagrams of example base stations and user equipment according to some embodiments of the present disclosure are shown;

[0028] Figure 3 Example power information data structures for PDCCH via MAC CE according to some embodiments of this disclosure are shown;

[0029] Figure 4 An example SSB data structure according to some embodiments of this disclosure is shown;

[0030] Figure 5 A flowchart of an example method for downlink power control according to an embodiment of the present disclosure is shown.

[0031] Figure 6 A flowchart of an example method for downlink power control according to an embodiment of the present disclosure is shown. Detailed Implementation

[0032] 1. Mobile communication technology and environment

[0033] Figure 1 An example wireless communication network and / or system 100, which can implement the techniques disclosed herein, is illustrated according to embodiments of this disclosure. In the following discussion, wireless communication network 100 can be any wireless network, such as a cellular network or a narrowband Internet of Things (NB-IoT) network, and is referred to herein as "network 100". Such an example network 100 includes a base station (BS) 102 (hereinafter referred to as "BS102"; also called a wireless network node) and a user equipment device 104 (hereinafter referred to as "UE 104"; also called a wireless communication device), which can communicate with each other via a communication link 110 (e.g., a wireless communication channel) and a cluster of cells 126, 130, 132, 134, 136, 138, and 140 covering a geographic area 101. Figure 1 In this context, BS102 and UE 104 are contained within the respective geographical boundaries of cell 126. Each of the other cells 130, 132, 134, 136, 138, and 140 may include at least one base station that operates on allocated bandwidth to provide sufficient radio coverage to its intended users.

[0034] For example, BS102 can operate on the allocated channel transmission bandwidth to provide sufficient coverage to UE 104. BS102 and UE 104 can communicate via downlink radio frame 118 and uplink radio frame 124, respectively. Each radio frame 118 / 124 can be further divided into subframes 120 / 127 that may include data symbols 122 / 128. In this disclosure, BS102 and UE 104 are generally described herein as non-limiting examples of "communication nodes" that can practice the methods disclosed herein. According to various embodiments of this solution, such communication nodes may be capable of wireless and / or wired communication.

[0035] Figure 2A block diagram of an example wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) according to some embodiments of this solution is shown. System 200 may include components and elements configured to support known or conventional operating characteristics that do not need to be described in detail herein. In one illustrative embodiment, system 200 may be used in, for example... Figure 1 In the wireless communication environment 100, data symbols are transmitted (e.g., sent and received) in the wireless communication environment, as described above.

[0036] System 200 typically includes a base station 202 (hereinafter referred to as "BS202") and a user equipment device 204 (hereinafter referred to as "UE204"). BS202 includes a BS (Base Station) transceiver module 210, a BS antenna 212, a BS processor module 214, a BS memory module 216, and a network communication module 218, each module being coupled and interconnected with each other via a data communication bus 220 as needed. UE 204 includes a UE (User Equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each module being coupled and interconnected with each other via a data communication bus 240 as needed. BS202 communicates with UE 204 via a communication channel 250, which can be any wireless channel or other medium suitable for data transmission as described herein.

[0037] As will be understood by those skilled in the art, system 200 may also include, in addition to Figure 2 Any number of modules other than those shown herein. Those skilled in the art will understand that the various illustrative blocks, modules, circuits, and processing logic described in connection with the embodiments disclosed herein can be implemented in hardware, computer-readable software, firmware, or any practical combination thereof. To clearly illustrate this interchangeability and compatibility of hardware, firmware, and software, they are typically described in terms of the functionality of various illustrative components, blocks, modules, circuits, and steps. Whether this functionality is implemented as hardware, firmware, or software can depend on the specific application and design constraints imposed on the system as a whole. Those skilled in the art can implement such functionality in a suitable manner for each specific application, but such implementation decisions should not be construed as limiting the scope of this disclosure.

[0038] According to some embodiments, UE transceiver 230 may be referred to herein as "uplink" transceiver 230, which includes a radio frequency (RF) transmitter and an RF receiver, both of which include circuitry coupled to antenna 232. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in a time-duplex manner. Similarly, according to some embodiments, BS transceiver 210 may be referred herein as "downlink" transceiver 210, which includes an RF transmitter and an RF receiver, both of which include circuitry coupled to antenna 212. A downlink duplex switch may alternatively couple the downlink transmitter or receiver to downlink antenna 212 in a time-duplex manner. The operation of these two transceiver modules 210 and 230 can be time-coordinated such that while the downlink transmitter is coupled to downlink antenna 212, the uplink receiver circuitry is coupled to uplink antenna 232 to receive transmissions via wireless transmission link 250. Conversely, the operation of the two transceivers 210 and 230 can be time-coordinated, such that while the uplink transmitter is coupled to the uplink antenna 232, the downlink receiver is coupled to the downlink antenna 212 to receive transmissions via the wireless transmission link 250. In some embodiments, strict time synchronization with a minimum guard time exists between duplex direction changes.

[0039] UE transceiver 230 and base transceiver 210 are configured to communicate via wireless data communication link 250 and cooperate with RF antenna arrangements 212 / 232 that are appropriately configured to support specific wireless communication protocols and modulation schemes. In some illustrative embodiments, UE transceiver 210 and base transceiver 210 are configured to support industry standards such as Long Term Evolution (LTE) and emerging 5G standards. However, it should be understood that this disclosure is not necessarily limited to the application of specific standards and related protocols. Rather, UE transceiver 230 and base transceiver 210 may be configured to support alternative or additional wireless data communication protocols, including future standards or variations thereof.

[0040] According to various embodiments, BS202 may be, for example, an Evolved Node B (eNB), a serving eNB, a target eNB, a femtocell, or a picocell. In some embodiments, UE 204 may be implemented in various types of user devices, such as mobile phones, smartphones, personal digital assistants (PDAs), tablet computers, laptop computers, wearable computing devices, etc. Processor modules 214 and 236 may be implemented or realized using a general-purpose processor, content-addressable memory, digital signal processor, application-specific integrated circuit, field-programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. In this way, the processor may be implemented as a microprocessor, a controller, a microcontroller, a state machine, etc. The processor may also be implemented as a combination of computing devices, such as a combination of a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other such configuration.

[0041] Furthermore, the steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be directly implemented in hardware, firmware, software modules executed by processor modules 214 and 236 respectively, or any practical combination thereof. Memory modules 216 and 234 can be implemented as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. In this regard, memory modules 216 and 234 can be coupled to processor modules 210 and 230 respectively, such that processor modules 210 and 230 can read information from and write information to memory modules 216 and 234 respectively. Memory modules 216 and 234 can also be integrated into their respective processor modules 210 and 230. In some embodiments, memory modules 216 and 234 may each include a cache memory for storing temporary variables or other intermediate information during the execution of instructions to be executed by processor modules 210 and 230 respectively. Memory modules 216 and 234 may also each include non-volatile memory for storing instructions to be executed by processor modules 210 and 230, respectively.

[0042] Network communication module 218 typically refers to the hardware, software, firmware, processing logic, and / or other components of base station 202 that enable bidirectional communication between base station transceiver 210 and other network components, as well as communication nodes configured to communicate with base station 202. For example, network communication module 218 may be configured to support Internet or WiMAX services. In a typical, non-limiting deployment, network communication module 218 provides an 802.3 Ethernet interface, allowing base station transceiver 210 to communicate with conventional Ethernet-based computer networks. In this way, network communication module 218 may include a physical interface for connecting to a computer network (e.g., a Mobile Switching Center (MSC)). The terms “configured for,” “configured as,” and variations thereof, used herein with respect to a particular operation or function, refer to means of means, components, circuits, structures, machines, signals, etc., that are physically constructed, programmed, formatted, and / or arranged to perform a specified operation or function.

[0043] The Open Systems Interconnection (OSI) model (referred to herein as the "OSI model") is a conceptual and logical layout that defines network communications used by systems (e.g., wireless communication devices, wireless communication nodes) that are open to interconnection and communication with other systems. The model is divided into seven sub-components or layers, each representing a set of concepts providing services to its upper and lower layers. The OSI model also defines logical networks and efficiently describes computer packet transmission using different layer protocols. The OSI model may also be referred to as the seven-layer OSI model or the seven-layer model. In some embodiments, the first layer may be the physical layer. In some embodiments, the second layer may be the Medium Access Control (MAC) layer. In some embodiments, the third layer may be the Radio Link Control (RLC) layer. In some embodiments, the fourth layer may be the Packet Data Convergence Protocol (PDCP) layer. In some embodiments, the fifth layer may be the Radio Resource Control (RRC) layer. In some embodiments, the sixth layer may be the NSA layer or the Internet Protocol (IP) layer, and the seventh layer is another layer.

[0044] Various exemplary embodiments of the present solution are described below with reference to the accompanying drawings to enable those skilled in the art to derive and use the present solution. As will be apparent to those skilled in the art, various changes or modifications can be made to the examples described herein after reading this disclosure without departing from the scope of the present solution. Therefore, the present solution is not limited to the exemplary embodiments and applications described and illustrated herein. Furthermore, the specific order or hierarchy of steps in the methods disclosed herein is merely an example method. Based on design preferences, the specific order or hierarchy of steps in the disclosed methods or processes can be rearranged while remaining within the scope of the present solution. Therefore, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or actions in an exemplary order, and the present solution is not limited to the specific order or hierarchy presented, unless otherwise expressly stated.

[0045] 2. Systems and methods for signaling design and configuration

[0046] Because DL may not support closed-loop power control (e.g., with feedback mechanisms), the BS cannot promptly sense / monitor whether a power allocation / adjustment is accurate / appropriate (or receive feedback on the situation). How the DL power allocation is adjusted can affect the BS's power consumption and the UE's reception of downlink transmissions. More specifically, maintaining high transmission power by the BS can guarantee that the UE receives the BS's transmissions, but this may lead to wasted / inefficient BS power because the UE may not need such high-power transmissions. Maintaining low transmission power helps save BS power, but may cause UE reception problems and may lead to duplicate transmissions due to reception problems, which may increase the power consumption of both the UE and the BS. A method is proposed in which the UE sends information to inform / notify the BS about information that can be used to perform power adjustments / adaptations of resource elements (REs) for DL ​​channels / signals, and / or the BS dynamically adjusts the power allocation of DL channels / signals. The systems and methods proposed herein may include novel approaches for signaling design and configuration, for example, associated with power control / adjustment.

[0047] The dynamic range of RE power control can be defined for a specified reference condition at maximum output power (e.g., P). max,c,AC or P max,c,TABC The difference between the RE power of the BS and the average RE power. For Type 1-C BSs, it is required to be compatible with antenna connectors that can support transmission in the operating frequency band. For Type 1-H BSs, it is required to be compatible with each TAB connector that supports transmission in the operating frequency band. The RE power control dynamic range can be as shown in Table 1.

[0048]

[0049] Table 1

[0050] For PRS, the field (e.g., dl-PRS-ResourcePower) can specify the average Energy Per Resource Element (EPRE) in dBm for resource elements that can carry the PRS and are available for PRS transmission. The UE can assume that all REs for a given DL-PRS resource can employ a constant EPRE. For each configured downlink PRS resource, the UE can assume that the sequence r(m) can be factored by β. PRS Scaling is performed, and it can be mapped to resource elements (k, l) according to the following formula. p，μ

[0051]

[0052] Regarding the DMRS of PDSCH, UE can assume that sequence r(m) can be factored. To scale to fit the specified transmission power, and can be mapped to resource elements (k, l) according to the following formula. p，μ

[0053]

[0054]

[0055] k′=0,1

[0056]

[0057] n = 0, 1, ...

[0058] Regarding the PT-RS of PDSCH, UE can assume that the PDSCH PT-RS can be transmitted through the factor β. PT-RS，i To scale to fit the specified transmission power, and can be mapped to resource elements (k, l) according to the following formula. p，μ

[0059]

[0060] In some embodiments, the DMRS of PSS / SSS / PBCH / PBCH can have the same RE power.

[0061] For a half-frame with an SSB (SS / PBCH) block, the first symbol index of the candidate SS / PBCH block can be determined as follows based on the subcarrier spacing (SCS) of the SS / PBCH block, where index 0 can correspond to the first symbol of the first time slot in the half-frame.

[0062] Example Case A-15kHz SCS

[0063] The first symbol of a candidate SS / PBCH block can have an index {2, 8} + 14·n. For operations without shared spectrum channel access and carrier frequencies less than or equal to 3 GHz, n can be 0 or 1. For operations without shared spectrum channel access and carrier frequencies greater than 3 GHz within FR1, n can be 0, 1, 2, or 3. For operations with shared spectrum channel access, n can be 0, 1, 2, 3, or 4.

[0064] Example case B-30kHz SCS

[0065] The first symbol of a candidate SS / PBCH block can have an index {4, 8, 16, 20} + 28·n. For carrier frequencies less than or equal to 3 GHz, n can be 0. For carrier frequencies greater than 3 GHz within FR1, n can be 0 or 1.

[0066] Example case: C-30kHz SCS

[0067] The first symbol of a candidate SS / PBCH block can have an index {2, 8} + 14·n. For operations without shared spectrum channel access, paired spectrum operations, and carrier frequencies less than or equal to 3 GHz, n can be 0 or 1. For operations without shared spectrum channel access, paired spectrum operations, and carrier frequencies greater than 3 GHz within FR1, n can be 0, 1, 2, or 3.

[0068] For operations without shared spectrum channel access, unpaired spectrum operations, and carrier frequencies less than 1.88 GHz, n can be 0 or 1. For operations without shared spectrum channel access, unpaired spectrum operations, and carrier frequencies within FR1 equal to or greater than 1.88 GHz, n can be 0, 1, 2, or 3. For operations with shared spectrum channel access, n can be 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9.

[0069] Example case: D-120kHz SCS

[0070] The first symbol of a candidate SS / PBCH block can have an index {4, 8, 16, 20} + 28·n. For the carrier frequency within FR2, n can be 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, or 18.

[0071] Example case: E-240kHz SCS

[0072] The first symbol of a candidate SS / PBCH block can have an index {8, 12, 16, 20, 32, 36, 40, 44} + 56·n. For the carrier frequency within FR2-1, n can be 0, 1, 2, 3, 5, 6, 7, or 8.

[0073] Example case: F-480kHz SCS

[0074] The first symbol of a candidate SS / PBCH block can have an index {2, 9} + 14·n. For the carrier frequency within FR2-2, n can be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, or 31.

[0075] Example case: G-960kHz SCS

[0076] The first symbol of a candidate SS / PBCH block can have an index {2,9}+14·n. For the carrier frequency within FR2-2, n can be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, or 31.

[0077] In some embodiments, the UE may transmit power adjustment / margin information. The BS may use / reference the power adjustment / margin information (e.g., power-related auxiliary information) to determine / ensure changes / adjustments to the transmission power (e.g., power level and / or transmission / power pattern / changes over a period of time) of the DL channel / signal (e.g., to cause / influence the BS to adjust power up / down). The power margin information may indicate how much transmission power is above / exceeds the level required for the UE to successfully receive / successfully receive the signal. The power margin information may include / represent / indicate the actual power level of the channel / signal received at the UE, the sufficient / required receive power level for the UE, the difference / gap / differential between the aforementioned power levels, the amount / range of power adjustment available to the BS, etc. Dynamic power control (initiated by the BS) may be used as a method to perform / enforce changes / adjustments to the transmission power of the DL channel / signal, and / or perform / enforce changes / adjustments to the transmission power of the UL channel / signal (e.g., transmitted by the UE).

[0078] In some embodiments, explicit or implicit conditions can be used to trigger the UE to send power adjustment / margin information (e.g., corresponding to Embodiment Example 1). In some embodiments, a specific / target DL channel / signal can cause / trigger the UE to send power adjustment / margin information to the BS. In some embodiments, the power adjustment / margin information can specify detailed power adjustment / margin data / metrics / values / ranges (e.g., corresponding to Embodiment Example 3). In some embodiments, the UE can send a report including power adjustment / margin information to the BS via RRC signaling, MAC CE signaling, NAS, PUSCH, PUCCH, higher-layer signaling, HARQ ACK or NACK messages, CSI reporting, defined uplink signaling, or other UE auxiliary information (e.g., corresponding to Embodiment Example 4). In some embodiments, the UE can send such a report to the BS according to a certain timing / schedule (e.g., corresponding to Embodiment Example 5). In addition to (or independently of) UE reports that may include power adjustment / margin information, dynamic DL power control methods can be implemented to adjust the DL channel / signal power (e.g., corresponding to Embodiment Example 6). The various features in the following implementation examples are provided in an illustrative manner, and it is entirely conceivable that these features may be used in any combination and / or order in various other implementations.

[0079] Implementation Example 1

[0080] The UE can determine at least one triggering condition for transmitting power margin information for at least one DL physical channel or signal. In response to the at least one triggering condition, the UE can transmit the power margin information to the BS.

[0081] One or more conditions used to trigger a report may include at least one of the following: for example, the wireless communication node operates at a power below the maximum / threshold output power according to an indication from the BS (e.g., for FR1, the BS may not be at maximum output power); the wireless communication device receives an indication of a time window or timer from the wireless communication node (e.g., for scheduling the transmission of the report); or a defined downlink reference signal is absent or configured, or a corresponding configuration exists or does not exist. The defined downlink reference signal may include SSB, PSS, SSS, or CSI-RS. One or more conditions used to trigger a report may include at least one of the following: the wireless communication device is in connected mode or has entered connected mode.

[0082] In some embodiments, the triggering condition may include a time window or timer from which the UE receives data from the BS. For example, the UE may send power adjustment / margin information for the physical channel / signal before the timer expires. As another example, in response to a configured time window, the UE may send power adjustment / margin information for the physical channel / signal during the configured time window. As yet another example, in response to a configured time window, the UE may send power adjustment / margin information based on physical channel / signal transmission during the configured time window.

[0083] In some embodiments, the triggering condition may include determining that a downlink reference signal is absent. For example, if a defined downlink reference signal is expected (e.g., configured), but may be absent or not detected by the UE due to insufficient transmission power, the UE may send a report to allow the BS to adjust the power for subsequent DL transmissions. For example, the triggering condition may include determining that an SSB is absent in the BWP (e.g., not detected or not successfully decoded). In another example, a CSI-RS, or DMRS, or any other DL RS may be absent in the PDSCH scheduling.

[0084] In some embodiments, the triggering condition may include the UE being in / entering connected mode (or exiting inactive or idle mode). For example, when the UE is in connected mode (and is able to receive DL transmissions), the UE can only send power headroom information to the BS. One or more of the above conditions may trigger the UE to send power adjustment / headroom information independently or in combination.

[0085] In some embodiments, at least one triggering condition may include at least one of the following: the wireless communication device receives higher-layer signaling (which may include MAC CE signaling and RRC signaling) from the wireless communication node; the wireless communication device receives DCI signaling from the wireless communication node; the wireless communication device receives DCI scrambled by a predetermined RNTI (e.g., C-RNTI, MCS-C-RNTI, P-RNTI, SI-RNTI) from the wireless communication node; or the wireless communication device receives; or parameters or features indicated, enabled, or disabled via DCI or higher-layer signaling.

[0086] In some embodiments, when the BS enters a power-saving mode, this can be a trigger condition for sending power margin information to the BS. The network power-saving mode may include: a sleep mode, which includes at least one of the following: a deep sleep mode, a light sleep mode, or a macro sleep mode; and / or a transition time corresponding to a plurality of transition times for different network power-saving modes; and / or an output power range / power consumption corresponding to a plurality of output power ranges / power consumption levels for different network power-saving modes.

[0087] For example, different power-saving modes of the BS can correspond to different output power ranges / power consumption. When the BS enters a mode corresponding to the maximum output power, the UE can report power adjustment / margin information, allowing the BS to potentially reduce the transmission power level (e.g., power allocation). In some embodiments, when the BS enters a mode that may correspond to an output power lower than the maximum output power, the UE may not need to report power adjustment / margin information. The power-saving mode defined for the BS can be a condition that triggers the UE to send power margin information. Another example is that the network power-saving mode can include a sleep mode, which includes at least one of the following: deep sleep mode, light sleep mode, or macro sleep mode. The network power-saving mode can include a transition time, which can be selected / implemented from multiple transition times corresponding to different network power-saving modes (e.g., deep sleep mode, light sleep mode, or macro sleep mode). Another example is that when the gNB indicates that it is in a network power-saving mode, the UE can send power margin information, where different power-saving modes can correspond to different transition times.

[0088] In some embodiments, when the UE receives higher-layer / higher-layer signaling (e.g., System Information (SI) information, RRC, NAS, or MAC CE) from the BS, a triggering condition for transmitting information to be used by the BS (e.g., power headroom information) can be triggered. The higher / higher-layer signaling can indicate which DL channel / signal the information can be applied to, including SSB, PSS, SSS, DMRS, PBCH, PRS, PDCCH, or PDSCH. For example, a bitmap approach can be used, where each bit can be used individually for each channel / signal. Alternatively, parameters or fields can be configured and / or used to indicate which channels / signals the UE may need to transmit power adjustment / headroom information.

[0089] In some embodiments, when the UE receives DCI signaling with a defined trigger indication from the BS, a triggering condition for sending information to be used by the BS can be triggered. The DCI signaling field may contain one or more bits (e.g., 1 bit, 2 bits, 3 bits, or 4 bits).

[0090] Example 1 – 1 bit

[0091] One bit is used to indicate whether the DL channel / signal requires power adjustment / margin information. One bit can be used to indicate whether the PDSCH transmission power requires / uses power adjustment reporting, or this bit can be used to indicate whether the PDSCH transmission power (if there is no corresponding PDCCH), or the PDCCH transmission power (if there is no PDSCH), or the PDCCH and PDSCH transmission power require / use adjustment information reporting (e.g., to configure the use of adjustment information reporting).

[0092] Example 2 – 2-bit

[0093] Two bits are used to indicate whether power adjustment information is required for the PDCCH and / or PDSCH transmission power (e.g., configuration based on adjustment information). For example, two bits in the bitmap can be used, one for the PDCCH and the other for the PDSCH. The following states can be indicated: only the PDCCH transmission power may require / use power adjustment / margin information to perform power adjustment; only the PDSCH may require / use power adjustment / margin information to perform power adjustment; or both the PDCCH and PDSCH transmission power may require / use power adjustment / margin information.

[0094] Example 3 – 3 bits

[0095] The three bits can indicate different channels / signals that may require or depend on the UE transmitting power adjustment / margin information to help the BS perform power adjustment. Channels / signals may include: PDCCH, PDSCH, and / or SSB. In some embodiments, channels / signals may include: PDCCH, PDSCH, and / or PRS. In some embodiments, channels / signals may include: PDSCH, SSB, and / or PRS.

[0096] Example 4 – 4 bits

[0097] Four bits can indicate whether the PDCCH, PDSCH, SSB, or CSI-RS transmission power, or whether the PDCCH, PDSCH, SSB, or PRS requires or depends on the UE transmitting power adjustment / margin information to assist the BS in performing power adjustment. The UE can receive a MACCE from the BS. For example, in response to a MAC CE, the UE can transmit power adjustment / margin information to the BS. In some embodiments, the UE can receive the following indications: which DL channels / signals may require the UE to transmit power adjustment / margin information; and which time slot / symbol may require the UE to transmit channel / signal power adjustment / margin information.

[0098] In some embodiments, when the UE receives DCI signaling, where the DCI is scrambled by RNTI (e.g., C-RNTI, MCS-C-RNTI, P-RNTI, SI-RNTI), a triggering condition for transmitting information can be used. When the UE receives DCI scrambled by X-RNTI (e.g., Cell-RNTI, Modulation and Coding Scheme Cell RNTI (MCS-C-RNTI), Configured Scheduling RNTI (CS-RNTI), or any defined RNTI), the DCI signaling can instruct the UE to transmit power adjustment / margin information. For example, SPS scheduling can be a condition that triggers the UE to transmit power adjustment / margin information (e.g., when using the (predetermined / BS-configured / DCI-indicated / higher-layer-configured) MCS table of PDSCH, or when using the (predetermined / BS-configured / DCI-indicated / higher-layer-configured) modulation order). For example, when using 64QAM (modulation order = 4) or 256QAM (modulation order = 8), the UE can transmit power adjustment / headroom information. For example, when using the MCS index defined for the PDSCH, the UE can be triggered to transmit power adjustment / headroom information.

[0099] When DCI or higher-layer signaling configures, enables, or disables parameters or features, triggering conditions for sending information to the BS can be established. For example, when cross-slot scheduling is enabled or disabled, the UE can send power adjustment / margin information.

[0100] Implementation Example 2

[0101] In some embodiments, a channel / signal may cause / require the UE to send information (e.g., power headroom information) to the BS. The UE may be triggered by conditions requiring the transmission of power headroom information for a (target) channel / signal. The following can define which channels / signals can be targets for the UE to report power headroom information. In this disclosure, power headroom information may sometimes be simply referred to as information.

[0102] When the UE receives a DCI scrambled with X-RNTI (e.g., C-RNTI, MCS-C-RNTI, P-RNTI, or SI-RNTI), the PDCCH / corresponding PDSCH can become the target (e.g., power margin information can be based on the target channel / signal, such as the PDSCH), and the UE can transmit information (e.g., power margin information). Power margin information can be transmitted for a specific channel / signal (e.g., PDSCH). When / once a specific channel becomes the target, the power margin information transmitted by the UE can be based on the target channel. In some embodiments, when the UE receives higher-layer signaling for a PDCCH with an SSID and / or CORESET ID or for an indication of the corresponding PDSCH, the PDCCH / corresponding PDSCH can become the target and the UE can transmit information. In some embodiments, when the UE receives a specific SS for the PDCCH, including the Common Search Space (CSS), the UE Specific Search Space (USS), or the corresponding PDSCH, the PDCCH / corresponding PDSCH can become the target and the UE can transmit information. The Service Shield (SS) can be predetermined / higher-layer configured / BS configured, and the SS can include a Service CSS and / or a Service Shield (USS). In some embodiments, the DL channel / signal can be targeted when the UE receives it within a symbol / slot / time window / time period or before a timer overflows, and the UE can (be caused / triggered) transmit information. In some embodiments, the UE can transmit information after receiving a MAC CE that can be used to trigger the UE to transmit the DL channel / signal.

[0103] For PDCCH (which can be transmitted to the UE), the X-RNTI-scrambled DCI may require / cause / trigger the UE to send power adjustment / margin information for the PDCCH. For example, X-RNTI may include at least one of C-RNTI, MCS-C-RNTI, P-RNTI, or SI-RNTI. The defined RNTI can be used to scramble the DCI, which can be used to indicate power allocation / adjustment or trigger the UE to send information.

[0104] A PDCCH with a higher-layer / higher-layer indication of SSID and / or CORESET ID may require / cause / trigger the UE to send power adjustment / margin information. In the search space IE, a new field can be defined to indicate whether the PDCCH requires power adjustment / margin information. In some embodiments, RRC signaling can indicate that power adjustment / margin information will be applied to the SS and / or CORESET.

[0105] For a PDCCH within a predetermined search space set or search space set / group, the predetermined search space set may include at least one of USS or Type 3CSS. For example, the predetermined SS may include Type 2CSS or USS. In this case, the UE may transmit corresponding power adjustment / margin information. A PDCCH in a symbol / slot / time window or before a timer overflow may require / cause / trigger the UE to transmit information.

[0106] For PDSCH, the above-described scenarios for PDCCH can be applied to PDSCH. X-RNTI scrambled DCI (e.g., CS-RNTI) can be used to schedule PDSCH. Such PDSCH becomes the target, and the UE can transmit information. PDCCH indicated by higher layers / higher layers may include an SSID and / or a CORESET ID. PDSCH scheduled by such PDCCH may require / cause / trigger the UE to transmit information. A specific SS for a PDCCH may include a CSS and / or a USS. PDSCH scheduled by such PDCCH becomes the target, and the UE can transmit information. Symbol / slot / time window or timer expiration indicated by higher layers / DCI may require / cause / trigger the UE to transmit information. PDSCH occurring / received within such symbol / slot / time window or before timer overflow becomes the target, and the UE can transmit information. Higher layers / higher layers / DCI may contain triggering information for the UE to transmit DL channels / signals.

[0107] For SPS scheduling, this type of PDSCH or the first PDSCH can become the target, and the UE can (correspondingly or in response) send information (e.g., power adjustment / margin information). For UE-specific PDSCH scheduling, this type of PDSCH can become the target, and the UE can send information. For UE-specific PDSCH scheduling within a time slot, this type of PDSCH can become the target, and the UE can send information. For UE-specific PDSCH scheduling (if the PDSCH scheduling delay is greater than X), this type of PDSCH can become the target, and the UE can send information.

[0108] For PDSCH scheduling with ACK or NACK feedback, the PDSCH scheduling may require / trigger / cause the UE to send information. If the UE successfully receives the PDSCH and sends an ACK, the UE can send the information along with the ACK. In some embodiments, if the UE fails to receive the PDSCH and sends a NACK, the UE can (be triggered to) send the information along with the NACK. For PDSCH containing a MAC CE for triggering the UE to send information, the PDSCH can be the target and the UE can send information. For PDSCH triggered by a MAC CE, the PDSCH may require / cause / trigger the UE to send information. For example, the MAC CE may include trigger information for triggering the UE to send information. For example, the PDSCH may be a first PDSCH transmission or an nth PDSCH transmission.

[0109] For an SSB, the SSB can correspond to the starting symbol of all n. For example, for each n, the last SSB can correspond to the last starting symbol in {2,8}+14·n. The SSB can be the target, and the UE can send information. For example, the worst / best SSB can be the target, and the UE can send information. In some embodiments, the SSB in a cycle can be the target, and the UE can send information. For example, for each SSB cycle, the last SSB can be the target, and the UE can send information. For example, for each SSB cycle, the worst / best SSB can be the target, and the UE can send information. For example, for each SIB1 cycle, the last / worst / best SSB can be the target, and the UE can send information. In one embodiment, the triggering condition for transmitting power margin information for an SSB may include: (UE receiving) an SSB associated with an SSB index that can be indicated, predefined, or configured by higher-layer / higher-layer signaling (e.g., a specific index that may require / trigger the UE to transmit information); an SSB associated with a set of SSBs that can be indicated, predefined, or configured by higher-layer signaling; an SSB in X symbols or time slots or a period of time, wherein X or the period of time can be predefined or configured by higher-layer signaling or DCI signaling; an SSB in a half-frame; or an SSB in a period.

[0110] For a PRS, a PRS resource set can be the target, and the UE can transmit information. The UE can transmit information about the resource set based on the period of PRS transmission (e.g., a cycle, a defined time window, or a timer). In some embodiments, a PRS resource can be the target, and the UE can transmit information. The UE can transmit information based on the period of PRS transmission (e.g., a cycle, a defined time window, or a timer). The UE can transmit information based on the last PRS in a cycle or the best / worst PRS in terms of power. In some embodiments, the triggering conditions for transmitting power margin information for a PRS may include: (UE receiving) a PRS associated with an indicated, predefined, or configured PRS resource set (e.g., a specific PRS that may require / cause the UE to transmit information); a PRS associated with an indicated, predefined, or configured PRS resource (e.g., a specific PRS that may require the UE to transmit information); a PRS in X symbols or time slots or a period of time, where X or the period of time may be predefined or configured by higher-layer signaling or DCI signaling; or one or more PRS in a cycle or period.

[0111] The power margin information transmitted by the UE can be based on the DL channel / signal within a specific time period (occurring / scheduled). For example, the UE can transmit information based on the PDSCH received within X time slots (or other time units). These X time slots can be configured / indicated / defined by higher layers / MAC CE / NAS / BS. The reported content may differ depending on the information within the X time slots. For example, the UE can transmit information based on the DL channel / signal within a time period (occurring / scheduled / received). This information can include average / maximum / minimum power adjustment values. The time slot number and / or frame number or CSI-RS or PRS resource ID corresponding to the average / maximum / minimum power adjustment value of the DL channel / signal can be transmitted as part of the information. For example, the UE can transmit information that may include power adjustment information for modulation order. For example, the UE can transmit information that may include power adjustment information for SSB index / beam direction.

[0112] Implementation Example 3

[0113] Power adjustment / margin information can be used to inform / notify / assist the BS in adjusting the DL power allocation for the corresponding channel / signal. The power adjustment information can include at least a power adjustment value, range, or set of values ​​(e.g., a set of values). This value, range, or set of values ​​can be based on absolute values, offsets, or relative values. For example, the value, range, or set can be based on absolute power values ​​{x1, x2} (e.g., {-60, 50}), with a step size of 1 dB, which can be used in scenarios with dynamic DL power allocation. In some embodiments, the value or range can be based on the SSB's power offset {y1, y2, y3, y4} (e.g., {-6, -3, 0, 3}), where the step size can be 3 dB.

[0114] If power adjustment is based on offset, the offset can be a power difference. For example, the offset can be based on SSB power. In some embodiments, power adjustment for DL ​​channels / signals can be based on the power of the scheduled DL channels / signals. For example, PDSCH power adjustment information can be used to adjust the power of the next PDSCH transmission (e.g., current PDSCH power + adjustment = future PDSCH power). The power of the scheduled DL channels / signals can refer to / represent the transmission power from the BS. In some embodiments, the power adjustment value or range can be determined by a target Block Error Ratio (BLER). For example, the power adjustment value or range or set can be different under different target BLERs.

[0115] Higher-level parameters can configure step size, start value, end value, and / or range. The DCI can indicate the step size, start value, end value, and / or range. For example, higher-level parameters can be configured or the DCI can indicate a range of (z1, z2) and a step size of z. In some embodiments, the DCI can indicate ranges of (z1, z2) and (z3, z4), and the DCI can indicate one of these two sets. In some embodiments, the higher-level layer can configure the range as (z1, zn) and the step size as z, and the DCI can indicate a subset of (z1, zn). In some embodiments, the higher-level layer can configure the range as (z1, zn), and the DCI can indicate a subset of (z1, zn).

[0116] In some embodiments, power margin / adjustment information may include at least one of the following: the ID of a CORESET or CORESET pool; the ID of a serving cell; the ID of a BWP; a subband index; an MCS; an indication of whether to perform TDMA or FDMA; a time slot number; a frame number; an SSB index; a cycle position; a resource set or resource ID of a PRS, CSI-RS, or SSB; the ID of a search space set; or the ID of a BWP set, wherein the BWP set includes one or more BWPs.

[0117] Implementation Example 4

[0118] The UE may send information to the BS via at least one of the following: RRC signaling, MAC CE signaling, NAS signaling, CSI reporting, PUCCH signaling, UL channel or signaling carrying HARQ ACK or NACK messages, or PUSCH transmission.

[0119] In some embodiments, the UE may send information to the BS via RRC signaling. The RRC IE for reporting power margin information may include at least one of the following: carrier / serving cell ID, reporting configuration ID (e.g., PDSCH), BWPID (e.g., subband), MCS, channel information for reporting (e.g., PDCCH, PDSCH, PBCH, or PRS), reporting configuration type (e.g., periodic, semi-persistent, or aperiodic), beam information / SSB information for PBCH reporting, CORESET ID / SSID for PDCCH reporting, or power adjustment / margin information.

[0120] In some embodiments, the UE can send information to the BS via MAC CE signaling. The UE can select a physical channel or signal to report power margin information. The gNB can configure the corresponding physical channel or signal, which may require sending the report from the UE via the System Information Block (SIB). The power information of the PDCCH in MAC CE may include at least one of the following: CORESET ID / CORESET pool ID, serving cell ID, BWP ID, or power adjustment / margin. Figure 3 A data structure including example power headroom information for the PDCCH via the MAC CE is shown. In some embodiments, the power headroom information for the PDSCH included in the MAC CE may include at least one of the following: MCS, TDMA, FDMA, serving cell ID, BWP ID, or power adjustment / headroom. In some embodiments, the power information for the PBCH in the MAC CE may include at least one of the following: SSB index / cycle position, serving cell ID, BWP ID, or power adjustment / headroom.

[0121] In some embodiments, information about the PDCCH / PDSCH / PBCH can be reported via MAC CE signaling. The MAC CE signaling may include at least one of the following: a bitmap of the PDCCH / PDSCH / PBCH or one of the PDCCH / PDSCH / PBCH, the serving cell ID, the BWP ID, or power adjustment / margin. Fields in the MAC CE may have content determined based on the enabling of the PDCCH / PDSCH / PBCH. For example, if reporting is for the PDCCH, the field may include CORESET ID information. If reporting is for the PDSCH, the field may include MCS / TDMA / FDMA information. If reporting is for the PBCH, the field may include an SSB index or other SSB-related information.

[0122] In some embodiments, the UE can send information to the BS via higher-layer / higher-layer signaling (e.g., RRC, MAC CE, NAS). For the PRS, power adjustment / margin information can be reported via NAS. At least one of the following information can be included in the IE via higher-layer signaling: PRS resource set ID, location frequency layer, PRS resource ID, cyclic location or cyclic number, physical cell ID (PCI), cell ID, or carrier information. In some embodiments, power adjustment / margin information can be reported via RRC signaling. The RRC IE may include at least one of the following information: carrier / serving cell ID, reporting configuration ID, PDSCH location (e.g., slot number and / or frequency location), CORESET ID, BWP ID (e.g., subband), MCS, channel information for reporting (e.g., PDCCH, PDSCH, PBCH, or PRS), reporting configuration type (e.g., periodic, semi-persistent, or aperiodic), beam information / SSB information for PBCH reporting, CORESET ID / SSID for PDCCH reporting, or power adjustment / margin information.

[0123] In some embodiments, the UE can send information to the BS via HARQ ACK / NACK. The UE can send information via a common PUCCH resource configurable by pucch-ResourceCommon. For example, a bit from the Uplink Control Information (UCI) information bits can be used. This bit can indicate the power adjustment / margin of the SSB, PRS, or PDCCH / PDSCH associated with the CSS. The power adjustment value can be +3dB, -3dB, or +1dB, -1dB. When pucch-config is not configured for the initial BWP in rrcConnectionSetup, the PUCCH can include the PUCCH for msg4. For example, an additional pseudo-random sequence can be used to indicate power adjustment information. Whether to send power adjustment / margin information can be determined by the SIB or higher-layer parameters. Which channels / signals the power adjustment / margin information can be applied to can be determined by the SIB or higher-layer parameters.

[0124] The UE can transmit information via dedicated PUCCH resources. At least one bit of power adjustment / margin information can be added to the UCI information bits (via multiplexing, joint coding, a separate bit sequence, a separate portion, a Scheduling Request (SR), or a CSI). PUCCH format 0 and 1 cannot be used when transmitting more than one bit of power adjustment / margin information. Other PUCCH formats can be considered. The configuration of the power adjustment / margin information can be indicated by DCI or higher-layer parameters (e.g., PUCCH-Config). In some embodiments, the step size can be 3dB, 1dB, 0.5dB, etc. The number of bits can be 1, 2, 3, 4, 5, 6, 7, or 8 bits. Power adjustment value / range It can be based on ss-PBCH-BlockPower. Whether PDCCH and / or PDSCH become targets and whether they need to / trigger / make the UE transmit information can be indicated by DCI or higher-layer parameters. DCI signaling may include: joint coding for indicating power information and corresponding physical resources, wherein the corresponding physical resources may include at least one of the following: CSI-RS resources, CSI-RS resource sets, a list of CSI-RS resource sets, all CSI-RS in one or more BWPs, CSI-RS resources corresponding to a port, CSI-RS resources corresponding to one or more ports, a wireless communication device, or a group of wireless communication devices.

[0125] In some embodiments, the UE can send information to the BS via CSI reporting. Signaling / fields (e.g., cri-PowerAdjustment, ssb-Index-PowerAdjustment) can be defined in CSI-ReportConfig. This field can contain a power range or a set of offset values ​​(e.g., {-50, 60}, {-6dB, -3dB, 0dB, 3dB}). The UE can send the information included in the CSI report via PUCCH / PUSCH. These conditions can include any of the following: the UE can be configured with CSI-ReportConfig where the higher-layer parameter reportQuantity is set to "cri-RSRP" or "ssb-Index-RSRP"; the UE can be configured with CSI-ReportConfig where the higher-layer parameter reportQuantity is set to "cri-SINR" or "ssb-Index-SINR"; or the UE sending the information can be triggered by DCI / higher-layer / MAC CE along with aperiodic / semi-persistent / periodic CSI-RS reporting.

[0126] For example, this information can be triggered by a DCI indication and included in aperiodic CSI reporting. The configuration of power adjustment information can be configured by higher-layer signaling. The DCI can indicate the selection of power adjustment / margin values / ranges. For example, this information can be triggered by higher-layer configuration and included in periodic CSI reporting. The configuration of power adjustment information can be configured by higher-layer signaling / configuration. For example, this information can be triggered by MAC CE signaling and included in semi-persistent CSI reporting. The configuration of power adjustment information can be configured by MAC CE signaling.

[0127] In some embodiments, in idle / inactive mode, the UE can transmit power adjustment / margin information via msg1 / msg3 / msg4 of the PUCCH. The UE can also transmit power adjustment / margin information via quality metrics corresponding to the Received Signal Time Difference (RSTD) and the UE Rx-Tx time difference measurement (e.g., NR-TimingQuality). The UE can also transmit power adjustment / margin information via UE auxiliary information.

[0128] Implementation Example 5

[0129] In some embodiments, a MAC CE can be sent after the last / best / worst PRS / SSB. For an SSB, the MAC CE can be sent before the end of a specific period. For example, a MAC CE can be sent at x+k symbols (e.g., its start or end), where x can be the end symbol of the last SSB in the period. The SSB can have a corresponding start symbol and n. For a PRS, the MAC CE can be sent before the end of a specific period. For a PRS, a MAC CE can be sent after the best / worst PRS occurs / is received, with a timing relationship / delay (e.g., n+k).

[0130] In some embodiments, a MAC CE can be sent according to its timing relationship with the PUCCH. For PDCCH / PDSCH, a MAC CE can be sent after the UE receives the PDCCH / PDSCH. The timing relationship can be the same as that of the PUCCH. For example, a MAC CE can be sent k symbols / slots before (offset) the start of the PUCCH. For example, a MAC CE can be sent k symbols / slots after (offset) the start of the PUCCH. For example, a MAC CE can be carried in the PUCCH / PDCCH / PDSCH / higher-layer signaling.

[0131] MAC CE can be transmitted in relation to the SSB / SSB cycle / PRS / PRS cycle. For example, MAC CE can be transmitted k symbols / slots after (offset) the SSB / PRS. Alternatively, MAC CE can be transmitted k symbols / slots after the last SSB / PRS of the cycle. The UE can transmit information k symbols / slots after the triggering event. Triggering events / methods can include MAC CE triggering, DCI triggering, higher-layer triggering, BS triggering, or conditional triggering.

[0132] Implementation Example 6

[0133] In some embodiments, the wireless communication device may receive signaling from the wireless communication node. This signaling may include power information, activation or deactivation information, or silence information for at least one DL physical channel or signal. The signaling may include DCI signaling or MAC CE signaling. The DL physical channel or signal may include at least one of the following: PDCCH, DMRS of PDCCH, PDSCH, DMRS of PDSCH or PT-RS of PDSCH, SSB, PSS, SSS, DMRS of PBCH, PBCH, CSI-RS, or PRS.

[0134] Power information may include: a value, range of values, or set of values ​​based on absolute, offset, or relative values. For example, the value may be an absolute, offset, or relative value. For example, the set of values ​​may be a set of absolute, offset, or relative values. For example, the range of values ​​may be based on absolute, offset, or relative values. In some embodiments, MAC CE or DCI signaling for indicating power information may include: a field for indicating power information of at least one DL physical channel or signal. For example, N bits may be used to indicate power information. Another field may also be used to indicate an identifier of a CSI-RS resource, an identifier of a CSI-RS resource set, a port number, a set of port numbers, an identifier of a BWP, or an identifier of a BWP set for at least one DL physical channel or signal.

[0135] The joint coding field in MAC CE or DCI signaling can indicate power margin information and corresponding physical resources. The corresponding physical resources can include at least one of the following: CSI-RS resources, CSI-RS resource sets, a list of CSI-RS resource sets, all CSI-RS in one or more BWPs, CSI-RS resources corresponding to a port, CSI-RS resources corresponding to one or more ports, CSI-RS resources of a wireless communication device or a group of wireless communication devices.

[0136] DCI signaling may include at least one of the following: multiple blocks, wherein at least some blocks may have the same or different sizes, and each block has multiple bits; or multiple indicators / indicators, wherein at least some indicators / indicators may have the same or different sizes, and each indicator has multiple bits, wherein each block / indicator / indicator may include at least one of the following: power information, activation or deactivation information, silence information, or the ID of a CSI-RS resource, a CSI-RS resource set, a BWP, a BWP set, or a port number or a set of port numbers. For example, each block may contain N bits, where N>=1.

[0137] For the Physical Downlink Control Channel (PDSCH), the PDSCH power can be determined by the DCI field. The DCI field can be used to indicate the DL power allocation of the PDSCH / DMRS. The DCI field can include a power offset based on the SS / SSB. A field with X bits is used to indicate the PDSCH power based on the SSB power. For example, X can be 2 bits, and the corresponding range can be {db-3, db0, db3, db6} or {db-3, db0, db3, db-6}. db-3 can indicate that the PDSCH RE power can be 3dB lower than the SSB. The DCI field can include a power scaling factor based on the SS / SSB. A power scaling factor based on (or applied to) the SSB power can be used to indicate the PDSCH power. For example, the scaling factor can be 2 bits and can be configured with a range of {1 / 2, 1, 2, 4}. The PDSCH power can be {1 / 2, 1, 2, 4} times the SSB power. The DCI field can include an absolute power allocation. Absolute power allocation can include the value / range of DMRS / PT-RS of PDSCH / PDSCH. For example, the value can be in the range {-50, 60}, and the step size can be 1. If this field exists, the conditions in Implementation Example 1 can be satisfied.

[0138] For the PDCCH, the future PDCCH power can be determined by the DCI field. The DCI field can be used to indicate the DL power allocation of the PDCCH / DMRS. The DCI field can include SS / SSB-based power offset, SS / SSB-based power scaling factor, or absolute power allocation. In some embodiments, the power allocation in the DCI of the first PDCCH can be used to indicate the power of the second PDCCH. The second PDCCH transmission can occur within a time window. The second PDCCH transmission can occur before a timer overflows. The second PDCCH transmission can be for no less than X slots / symbols / frames / half-frames / ms / us. If a power allocation exists for the PDCCH, the conditions in Implementation Example 1 can be satisfied.

[0139] For CSI-RS (e.g., for periodic and / or semi-persistent CSI-RS), CSI-RS power allocation can be indicated / configured by DCI (e.g., by reusing an existing DCI format or defining a new one) or MAC CE. Power adjustment / indication can be applied to CSI-RS resources, CSI-RS resource sets, lists of CSI-RS resource sets, all CSI-RS in one or more BWPs, CSI-RS resources corresponding to a port, and CSI-RS resources corresponding to one or more ports for a UE or a group of UEs. For example, a field with N1 bits in the DCI or MAC CE can indicate the power adjustment value / range of the CSI-RS. The actual power can be calculated based on the power adjustment value / range and the parameters powerControlOffsetSS and ss-PBCH-BlockPower. Another field with N2 bits in the DCI or MAC CE can indicate the corresponding CSI-RS resource ID, CSI-RS resource set ID, port number, BWP ID, or BWP set ID. The size of N2 can be related to the size of the list, including the number of ports in the list, the number of CSI resources in the list, the number of BWPs in the list, the number of CSI sets in the list, or the number of BWP sets in the list. N1 and N2 can be jointly encoded.

[0140] For example, the following information can be transmitted via DCI format X with a CRC scrambled by Y-RNTI: Block No. 1, Block No. 2, ..., Block No. n. Each block may contain / include power information, which can be applied to CSI-RS resources, CSI-RS resource sets, all CSI-RS in one or more BWPs, or CSI-RS resources corresponding to one or more ports, a UE, or a group of UEs. In some embodiments, each block may contain / include the ID of a CSI-RS resource, CSI-RS resource set, BWP, BWP set, or port number. Each block can be used for a UE. Power information can be indicated in another block (e.g., the first block). In some embodiments, each block may contain / include power allocation, CSI-RS resources, CSI-RS resource sets, BWPs, BWP set IDs, or port numbers. One block can be indicated for one UE.

[0141] Power allocation / adjustment can be effective over X symbols / time slots / frames / half-frames / ms / us, or over Y CSI-RS resources (e.g., one CSI-RS in one period, multiple CSI-RS resources corresponding to multiple periods). X or Y can be indicated in a field of DCI or MAC CE or a higher layer. For example, the power of CSI-RS resources in X symbols / time slots / frames / half-frames / ms / us or Y CSI-RS resources can be adjusted based on signaling. The remainder or other parts can be adjusted according to powerControlOffsetSS. Power allocation can be effective until the UE receives a MAC CE or DCI indicating that the power adjustment can end / be released.

[0142] Figure 4 A block diagram of an example SSB is shown. For SSBs or CSI-RS, transmissions can be silenced. For example, blocks labeled SSB0 and SSB1 can be configured resource transmissions. Some SSBs can be silenced (e.g., not transmitted). In some embodiments, SSBs with the same start symbol can be silenced. SSBs with the same timeslot number can be silenced. Periodic patterns of SSBs can be defined, and SSBs can be not transmitted at periodic locations. The remaining SSBs can still be transmitted. Similar to CSI-RS, patterns can be defined to silence (e.g., deactivate / block) CSI-RS transmissions. Silence patterns can be defined at least based on periodicity. Transmission patterns can differ from silence patterns. Periodic locations (of transmission patterns) that are not part of a silence pattern can support SSB transmission. SSBs in the remaining locations / patterns (not part of the transmission pattern) are not transmitted.

[0143] In some embodiments, the signaling may include power information of at least one DL physical channel or signal; or activation or deactivation information; or silence information. This signaling may be transmitted / sent via DCI. DCI may be scrambled by predefined or higher-layer configured RNTIs (e.g., C-RNTI, MCS-C-RNTI, P-RNTI, SI-RNTI, PS-RNTI, CI-RNTI, AI-RNTI, INT-RNTI); or DCI formats 2_3, 2_4, or 2_6 may be reused for DCI, or a new DCI format may be defined for DCI.

[0144] In some embodiments, power information, activation or deactivation information, or silence information of at least one DL physical channel or signal can be transmitted via DCI. DCI may include: multiple blocks, wherein at least some blocks may have the same or different sizes, each block having multiple bits; or multiple indicators / indicators, wherein at least some indicators / indicators may have the same or different sizes, each indicator / indicator having multiple bits. Each block / indicator / indicator may include at least one of the following: power information, activation or deactivation information, silence information, or the ID of a CSI-RS resource, CSI-RS resource set, BWP, BWP set, or port number.

[0145] The starting position of the first block in a plurality of blocks can be determined by MAC CE signaling or higher-layer signaling. This signaling can include activation information in the MAC CE or DCI. Activation information can include whether DL channel / signal transmission is activated or whether at least one DL physical channel or signal resource is activated. For example, after sending / receiving activation information, the gNB can send / UE can receive the corresponding DL channel / signal. After sending / receiving activation information, the gNB can send / UE can receive the corresponding DL channel / signal, and the remaining portion cannot be transmitted / received by the UE. DL channel / signal can refer to SSB or CSI-RS.

[0146] This signaling can include deactivation information in the MAC CE or DCI. The deactivation information can include whether to deactivate DL channel / signal transmission or whether to deactivate resources for at least one DL physical channel or signal. For example, after sending / receiving deactivation information, the gNB will send / UE will not receive the corresponding DL channel / signal. After sending / receiving deactivation information, the gNB will not send / UE will receive the corresponding DL channel / signal, and the remaining portion can be transmitted / received by the UE. DL channel / signal can refer to SSB or CSI-RS.

[0147] This signaling can include silence information in the MAC CE or DCI. Silence information can include whether to silence DL channel / signal transmissions or whether to silence resources for at least one DL physical channel or signal. Silence information can include the periodicity and / or offset of the silence. DL channels / signals can refer to SSBs or CSI-RS. For example, transmissions corresponding to the same start symbol and / or periodicity of SSBs / CSI-RS resources / CSI-RS resource sets / SSB sets can be silenced. The remaining transmissions can continue. For example, transmissions corresponding to the same time slot number and / or periodicity of SSBs / CSI-RS resources / CSI-RS resource sets / SSB sets can be silenced. The remaining transmissions can continue.

[0148] In some embodiments, the UE may send signaling, including reporting or feedback. The UE may send information based on the DL channel / signal. The SSB may include PSS, SSS, DMRS, or PBCH. The PDCCH may include the DMRS of the PDCCH. The PDSCH may include the DMRS of the PDSCH or the PT-RS of the PDSCH.

[0149] Figure 5 A flowchart of a downlink power control method 500 is shown. Method 500 can be used in conjunction with this document. Figures 1 to 4 The method may be implemented using any one or more components and devices described in detail. In general, method 500 may include a wireless communication device (e.g., a UE) determining at least one triggering condition (operation 505) for transmitting power margin information for at least one DL physical channel or signal. The method may include the wireless communication device transmitting power margin information to a wireless communication node in response to at least one triggering condition (operation 510).

[0150] In some embodiments, at least one triggering condition may include at least one of the following: the wireless communication node operates at a power below its maximum output power; or the power of the received DL channel or signal is greater than a threshold, wherein the threshold is determined by at least one of the following: MCS index table, MCS, modulation, another DL channel or signal, DCI signaling, MAC CE signaling, or higher-layer signaling; or a defined downlink reference signal is absent or configured, or a corresponding configuration is present or absent, the defined downlink reference signal including SSB, PSS, SSS, or CSI-RS; or a DL channel or signal is indicated, configured, or scheduled using at least one of the following: modulation order, power, code rate, TBS, port, layer number, or one or more codewords; or the wireless communication device is in connected mode; or the wireless communication device receives DCI scrambled by a predetermined RNTI from the wireless communication node.

[0151] In some embodiments, at least one triggering condition may include receiving signaling from a wireless communication node, the signaling including DCI signaling, MAC CE signaling, or higher-layer signaling. The signaling may include / indicate at least one of the following: a timer, a time window, or a period. The wireless communication device may transmit power margin information according to periodicity, a timer, and / or a time window. The wireless communication device may receive DL channels or signals periodically by transmitting power margin information.

[0152] In some embodiments, at least one triggering condition may include: the wireless communication node instructing the wireless communication node to enter or be in a network power saving mode. The network power saving mode may include: a sleep mode, which includes at least one of the following: deep sleep mode, light sleep mode, or macro sleep mode; and / or a transition time corresponding to a plurality of transition times for different network power saving modes.

[0153] In some embodiments, at least one DL channel or signal may include at least one of the following: PDCCH, DMRS of PDCCH; PDSCH, DMRS of PDSCH, PT-RS of PDSCH; DMRS of SSB, PSS, SSS, PBCH, PBCH; CSI-RS, or PRS. The triggering condition for transmitting power margin information of PDCCH may include at least one of the following: (received by the wireless communication device) a PDCCH for transmitting power margin information via DCI scrambled by RNTI; a PDCCH for transmitting power margin information that can be configured by higher-layer signaling, the PDCCH having at least one of the following: SSID or CORESETID; a PDCCH that can be transmitted over X symbols or time slots or a period of time, wherein X or the period of time is predefined or configured by higher-layer signaling or DCI signaling; or a PDCCH received at maximum power or before a timer overflows, wherein the timer can be predefined or configured by higher-layer signaling or DCI signaling.

[0154] In some embodiments, the triggering condition for transmitting power margin information of a PDSCH may include at least one of the following: (received by the wireless communication device) a PDSCH whose corresponding PDCCH includes a DCI scrambled by RNTI for transmitting power margin information; a PDSCH whose corresponding PDCCH can be configured by higher-layer signaling for transmitting power margin information, the PDSCH having at least one of the following: SSID or CORESET ID; a PDSCH whose corresponding PDCCH or itself can be transmitted over X symbols or time slots or a period of time, wherein X or the period of time can be predefined or configured by higher-layer signaling or DCI signaling; a PDSCH whose corresponding PDCCH or itself can be received before a timer overflows, wherein the timer can be predefined or configured by higher-layer signaling or DCI signaling; a PDSCH that can be scheduled using SPS; a PDSCH that can carry MAC CE signaling; or a PDSCH scheduled with a predetermined modulation order or a predetermined MCS index.

[0155] In some embodiments, the triggering conditions for transmitting power margin information of SSBs may include: (received by the wireless communication device) an SSB associated with an SSB index that can be indicated, predefined, or configured by higher-layer signaling; an SSB associated with a set of SSBs that can be indicated, predefined, or configured by higher-layer signaling; an SSB in X symbols or time slots or a period of time, wherein X or the period of time can be predefined or configured by higher-layer signaling or DCI signaling; an SSB in a half-frame; or an SSB in a period.

[0156] In some embodiments, the triggering conditions for transmitting power margin information for a PRS may include: (receiving) a PRS associated with an indicated, predefined, or configured set of PRS resources; a PRS associated with an indicated, predefined, or configured PRS resource; a PRS in X symbols or time slots or a period of time, wherein X or the period of time may be predefined or configured by higher-layer signaling or DCI signaling; or one or more PRS in a period or cycle.

[0157] In some embodiments, the wireless communication device may receive a configuration via higher-layer signaling, MAC CE signaling, NAS signaling, or signaling from a wireless communication node, wherein the configuration may indicate a time period for transmitting power headroom information. The wireless communication device may transmit power headroom information to the wireless communication node during this time period. The wireless communication device may transmit power headroom information for at least one DL physical channel or signal to the wireless communication node during this time period. This time period may include: one or more cycles of resources or resource sets of at least one DL physical channel or signal; a time window; X symbols or time slots or a period of time, wherein X or the period of time may be predefined or configured by higher-layer signaling or DCI signaling; or X ms, us, frames, or half-frames, wherein X may be predefined or configured by higher-layer signaling or DCI signaling.

[0158] In some embodiments, power margin information may include a value or range or set of power margins for at least one DL physical channel or signal, wherein the value or range or set may be based on an absolute value, offset, or relative value. In some embodiments, power margin information may include at least one of the following: a CORESET or CORESET pool ID; a serving cell ID; a BWP ID; a subband index; an MCS; an indication of whether TDMA or FDMA can be implemented; a timeslot number; a frame number; an SSB index; a period position; a resource set or resource ID of a PRS, CSI-RS, or SSB; an ID of a search space or search space set; an ID of a BWP set, wherein a BWP set may include one or more BWPs; a port number; or a set of port numbers.

[0159] The wireless communication device may send power margin information to the wireless communication node via at least one of the following: RRC signaling, MAC CE signaling, NAS signaling, CSI reporting, PUCCH signaling, UL channel or signaling that may carry HARQ ACK or NACK messages, PUSCH transmission, or UE auxiliary information.

[0160] Referring now to operation (515), a wireless communication node (e.g., a ground terminal, base station, gNB, eNB, repeater, or serving node) can receive power margin information for at least one DL physical channel or signal from a wireless communication device (e.g., a UE). Power margin information can be transmitted to the wireless communication node in response to at least one triggering condition for transmitting the power margin information.

[0161] Figure 6 A flowchart of a method 600 for dynamic power control is shown. Method 600 can be used in conjunction with this document. Figures 1 to 4 The method may be implemented using any one or more components and devices described in detail. In general, method 600 may include a wireless communication device receiving signaling from a wireless communication node (operation 605). This signaling may include power information, activation or deactivation information, or silence information for at least one DL physical channel or signal. The signaling may include DCI signaling or MAC CE signaling. The DL physical channel or signal may include at least one of the following: PDCCH, DMRS of PDCCH; PDSCH, DMRS of PDSCH, or PT-RS of PDSCH; DMRS of SSB, PSS, SSS, PBCH, or PBCH; CSI-RS, or PRS.

[0162] Power information may include: a value, range of values, or set of values ​​that may be based on absolute, offset, or relative values. MAC CE or DCI signaling used to indicate power information may include: a field indicating power information for at least one DL physical channel or signal. MAC CE or DCI signaling may include: another field indicating an identifier for a CSI-RS resource, an identifier for a CSI-RS resource set, a port number, a set of port numbers, an identifier for a BWP, or an identifier for a BWP set.

[0163] In some embodiments, MAC CE or DCI signaling may include: joint encoding for indicating power information and corresponding physical resources, wherein the corresponding physical resources may include at least one of the following: CSI-RS resources, a set of CSI-RS resources, a list of CSI-RS resource sets, all CSI-RS in one or more BWPs, CSI-RS resources corresponding to a port, CSI-RS resources corresponding to one or more ports, a wireless communication device or a group of wireless communication devices.

[0164] DCI signaling may include at least one of the following: multiple blocks, wherein at least some blocks may have the same or different sizes, and each block has multiple bits; or multiple indicators / symbols, wherein at least some indicators / symbols may have the same or different sizes, and each indicator / symbol has multiple bits, wherein each block / indicator / symbol may include at least one of the following: power information, activation or deactivation information, silence information, or the ID of a CSI-RS resource, CSI-RS resource set, BWP, BWP set, or port number. DCI may be scrambled by a predefined or higher-layer configured RNTI; or DCI formats 2_3, 2_4, or 2_6 may be reused for DCI, or a new DCI format may be defined for DCI. DCI signaling may include multiple blocks, and the starting position of the first block among the multiple blocks may be determined by MAC CE signaling or higher-layer signaling.

[0165] In some embodiments, at least one DL physical channel or signal may include periodic or semi-persistent CSI-RS. Power information for PDSCH transmissions, CSI-RS, PDCCH transmissions, PRS, or SSBs may be applied as follows: after MAC CE or DCI signaling; k symbols, time slots, half-frames, frames, ms, or us after MAC CE or DCI signaling; or before a timer overflow, wherein the timer may be defined, configured, or indicated by DCI signaling, higher-layer signaling, or MAC CE signaling; or within X symbols or time slots or a period of time, wherein X or the period of time may be predefined or configured by higher-layer signaling, DCI signaling, or MAC CE signaling.

[0166] In some embodiments, the signaling may include activation information, which may include an indication that at least one DL physical channel or signal or at least one DL physical channel or signal resource will be received after activation, wherein the DL physical channel or signal may include at least one of the following: CSI-RS or SSB.

[0167] In some embodiments, the signaling may include deactivation information, which may include: an indication that at least one DL physical channel or signal or at least one DL physical channel or signal resource will not (or will not) be received after deactivation, wherein the DL physical channel or signal may include at least one of the following: CSI-RS or SSB.

[0168] The signaling may include a silence message, which may include an indication that at least one DL physical channel or signal or at least one DL physical channel or signal resource will be silenced upon receipt of the silence message, wherein the DL physical channel or signal may include at least one of the following: CSI-RS or SSB.

[0169] At least one aspect relates to a system, method, apparatus, or computer-readable medium. Referring now to operation (610), a wireless communication node (e.g., a ground terminal, base station, gNB, eNB, repeater, or serving node) can send signaling to a wireless communication device. This signaling may include power information, activation or deactivation information, or silence information for at least one DL physical channel or signal. The signaling may include DCI or MAC CE signaling.

[0170] While various embodiments of the present solution have been described above, it should be understood that these embodiments are presented merely as examples and not as limitations. Similarly, various figures may depict example architectures or configurations, provided to enable those skilled in the art to understand the example features and functionality of the present solution. However, those skilled in the art will understand that the present solution is not limited to the example architectures or configurations shown, but can be implemented using various alternative architectures and configurations. Additionally, as those skilled in the art will understand, one or more features of one embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of this disclosure should not be limited to any of the illustrative embodiments described above.

[0171] It should also be understood that any references to elements made herein using designations such as "first," "second," etc., do not generally limit the number or order of these elements. Rather, these designations may be used herein as a convenient means of distinguishing two or more elements or instances of elements. Therefore, references to a first element and a second element do not imply that only two elements can be used, or that the first element must somehow precede the second element.

[0172] Additionally, those skilled in the art will understand that information and signals can be represented using any of a variety of different techniques and processes. For example, data, instructions, commands, information, signals, bits, and symbols (as may be referenced in the description above) can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0173] Those skilled in the art will further understand that any of the various illustrative logic blocks, modules, processors, devices, circuits, methods, and functions described in conjunction with the aspects disclosed herein can be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, various forms of program or design code in conjunction with instructions (which may be referred to herein as "software" or "software module"), or any combination of these technologies. To clearly illustrate this interchangeability of hardware, firmware, and software, the functionality of the various illustrative components, blocks, modules, circuits, and steps has been described above in its entirety. Whether this functionality is implemented as hardware, firmware, software, or a combination of these technologies depends on the specific application and the design constraints imposed on the system as a whole. Those skilled in the art can implement the described functionality in various ways for each specific application, but such implementation decisions do not depart from the scope of this disclosure.

[0174] Furthermore, those skilled in the art will understand that the various illustrative logic blocks, modules, devices, components, and circuits described herein may be implemented within or executed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, or any combination thereof. Logic blocks, modules, and circuits may also include antennas and / or transceivers for communicating with various components within a network or device. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors with a digital signal processor core, or any other suitable configuration to perform the functions described herein.

[0175] If implemented as software, functionality can be stored as one or more instructions or code on a computer-readable medium. Therefore, the steps of the methods or algorithms disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media include computer storage media and communication media, with communication media including any medium capable of enabling the transfer of computer programs or code from one place to another. Storage media can be any available medium accessible to a computer. By way of example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0176] In this document, as used herein, the term "module" refers to software, firmware, hardware, and any combination of such elements for performing the associated functions described herein. Additionally, for the purposes of discussion, various modules are described as discrete modules; however, as will be apparent to those skilled in the art, according to embodiments of this solution, two or more modules may be combined to form a single module performing associated functions.

[0177] Additionally, in embodiments of this solution, memory or other storage devices and communication components may be employed. It should be understood that, for clarity, embodiments of this solution have been described above with reference to different functional units and processors. However, it will be apparent that any suitable functional distribution among different functional units, processing logic elements, or domains can be used without departing from this solution. For example, functions shown as being performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Therefore, references to specific functional units are merely references to suitable means for providing the described functionality and do not indicate a strict logical or physical structure or organization.

[0178] Various modifications to the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but is accorded the widest scope consistent with the novel features and principles disclosed herein, as set forth in the foregoing claims.

Claims

1. A downlink power control method, comprising: The wireless communication device determines at least one triggering condition for transmitting power margin information to a base station, the power margin information being used from at least one downlink DL physical channel or signal from the base station; and The wireless communication device sends the power margin information to the base station in response to the at least one triggering condition; The power margin information includes a value, range, or set of power margins for the at least one downlink DL physical channel or signal, wherein the value, range, or set is based on an absolute power value or a power offset; and The at least one triggering condition includes the wireless communication device receiving a DCI scrambled by a predefined wireless network temporary identifier RNTI from the base station.

2. The downlink power control method according to claim 1, wherein the at least one triggering condition further includes at least one of the following: The base station operates at a power lower than its maximum output power, or The power of the received DL channel or signal is greater than a threshold, wherein the threshold is determined by at least one of the following: Modulation and Coding Scheme (MCS) Index Table, MCS, modulation, another DL channel or signal, Downlink Control Information (DCI) signaling, Media Access Control (MAC) Control Element (CE) signaling, or higher-layer signaling. The defined downlink reference signal may or may not exist, or the corresponding configuration may or may not exist. The defined downlink reference signal includes a Synchronization Signal Block (SSB), a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), or a Channel State Information Reference Signal (CSI-RS). A DL channel or signal is indicated, configured, or scheduled using at least one of the following: modulation order, power, code rate, transport block size (TBS), port, layer number, or one or more codewords. The wireless communication device is in connection mode.

3. The downlink power control method according to claim 1, wherein the at least one triggering condition includes: The signaling received from the base station includes DCI signaling, MAC CE signaling, or higher-layer signaling.

4. The downlink power control method according to claim 3, wherein the signaling includes at least one of the following: Timer, Time window, or cycle.

5. The downlink power control method according to claim 4, comprising: The wireless communication device transmits the power margin information according to the period; or The wireless communication device receives the at least one DL physical channel or signal during the period in which the power margin information is transmitted.

6. The downlink power control method according to claim 1, wherein the at least one triggering condition includes: The base station indicates that it is entering or in a network power saving mode.

7. The downlink power control method according to claim 6, wherein the network power saving mode includes: Hibernation mode, wherein the hibernation mode includes at least one of the following: deep hibernation mode, light hibernation mode, or macro hibernation mode, or The conversion time corresponds to the conversion time in multiple conversion times for different network power saving modes.

8. The downlink power control method according to claim 1, wherein the at least one DL physical channel or signal includes at least one of the following: Physical downlink control channel (PDCCH) and demodulation reference signal (DMRS) of PDCCH. Physical Downlink Shared Channel (PDSCH), PDSCH DMRS, and PDSCH Phase Tracking Reference Signal (PT-RS) SSB, PSS, SSS, DMRS and PBCH of the Physical Broadcast Channel PBCH CSI-RS, or Positioning reference signal PRS.

9. The downlink power control method according to claim 8, wherein the triggering condition for transmitting power margin information of the PDCCH includes at least one of the following: This includes the PDCCH of the DCI used to transmit power margin information, scrambled by RNTI. A PDCCH configured by higher-layer signaling for transmitting power margin information, the configuration including at least one of the following: a search space identifier (SS) ID or a control resource set (CORESET) ID. PDCCH transmitted over X symbols, time slots, or a period of time, where X or the period of time is predefined or configured by higher-layer signaling or DCI signaling, or A PDCCH received at maximum power or a PDCCH received before a timer overflows, wherein the timer is predefined or configured by higher-layer signaling or DCI signaling.

10. The downlink power control method according to claim 8, wherein the triggering condition for transmitting power margin information of the PDSCH includes at least one of the following: Its PDSCH corresponds to PDCCH, which includes DCI scrambled by RNTI for transmitting power margin information. Its PDSCH corresponds to the PDCCH, which is configured by higher-layer signaling to transmit power margin information. This configuration has at least one of the following: SS ID or CORESET ID. The PDSCH corresponds to the PDCCH, or the PDSCH is transmitted over X symbols, time slots, or a period of time, where X or the period of time is predefined or configured by higher-layer signaling or DCI signaling. The PDSCH corresponds to the PDCCH, or the PDSCH is received before the timer overflows, wherein the timer is predefined or configured by higher-layer signaling or DCI signaling. This PDSCH is a PDSCH scheduled by the semi-persistent scheduler SPS. PDSCH carrying MAC CE signaling, or PDSCH scheduled using a predetermined modulation order or MCS index.

11. The downlink power control method according to claim 8, wherein the triggering condition for transmitting SSB power margin information includes: SSBs associated with SSB indexes indicated by higher-level signaling, predefined, or configured. SSBs associated with a set of SSBs indicated by higher-level signaling, predefined, or configured. X symbols, time slots, or a period of time, where X or the period of time is predefined or configured by higher-layer signaling or DCI signaling. SSB in half a frame, or SSB in the cycle.

12. The downlink power control method according to claim 8, wherein the triggering condition for transmitting power margin information of PRS includes: PRS associated with a set of indicated, predefined, or configured PRS resources. PRS associated with an instruction, predefined, or configured PRS resource, PRS in X symbols, time slots, or a period of time, where X or the period of time is predefined or configured by higher-layer signaling or DCI signaling, or One or more PRS in a cycle or loop.

13. The downlink power control method according to claim 1, comprising: The wireless communication device receives a configuration via higher-layer signaling, MAC CE signaling, non-access stratum (NAS) signaling, or signaling from the base station, wherein the configuration indicates a time period for transmitting the power margin information; and The wireless communication device sends the power margin information to the base station during the time period, or The wireless communication device transmits power margin information of at least one DL physical channel or signal to the base station during the time period.

14. The downlink power control method according to claim 13, wherein the time period includes: One or more cycles of the resources or resource set of the at least one DL physical channel or signal; Time window; X symbols, time slots, or time periods, where X or the time period is predefined or configured by higher-layer signaling or DCI signaling; or X ms, us, frames, or half-frames, where X is predefined or configured by higher-layer signaling or DCI signaling.

15. The downlink power control method according to claim 1, wherein the power margin information includes at least one of the following: CORESET or CORESET pool ID, Service community ID, The bandwidth portion of the BWP's ID. Sub-band index, MCS, Instructions for executing Time Division Multiple Access (TDMA) or Frequency Division Multiple Access (FDMA) Time slot number, Frame number, SSB index Periodic position, The resource set or resource ID of PRS, CSI-RS, or SSB. The ID of the search space or set of search spaces. The ID of a BWP set, wherein the BWP set includes one or more BWPs. port number, or A set of port numbers.

16. The downlink power control method according to claim 1 or 15, comprising: The power margin information is transmitted to the base station by the wireless communication device via at least one of the following: Radio resource configuration RRC signaling, MAC CE signaling, NAS signaling Channel Status Information (CSI) reporting, Physical uplink control channel (PUCCH) signaling, Uplink UL channels or signals carrying Hybrid Automatic Repeat Request (HARQ) ACK or NACK messages. Physical uplink shared channel (PUSCH) transmission, or User Equipment (UE) Auxiliary Information.

17. A downlink power control method, comprising: The base station receives power margin information from the wireless communication device for at least one downlink DL physical channel or signal from the base station. The wireless communication device sends the power margin information to the base station in response to at least one triggering condition for sending the power margin information to the base station. The power margin information includes a value, range, or set of power margins for the at least one downlink DL physical channel or signal, wherein the value, range, or set is based on an absolute power value or a power offset; and The at least one triggering condition includes the wireless communication device receiving a DCI scrambled by a predefined wireless network temporary identifier RNTI from the base station.

18. A non-transitory computer-readable medium storing instructions that, when executed by at least one processor, cause the at least one processor to perform the downlink power control method according to any one of claims 1 to 17.

19. A downlink power control device, comprising: At least one processor, the at least one processor being configured to perform the downlink power control method according to any one of claims 1 to 17.

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