117 results about "Uplink power control" patented technology

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message scheduling transmission, by the UE, of uplink control information (UCI) in a physical uplink control channel (PUCCH) resource. The UE may receive an indication that the UE is scheduled to transmit the UCI in the PUCCH resource to both a first transmission-reception point (TRP) and a second TRP. The UE may also receive a first set of uplink power control parameters for transmitting the UCI to the first TRP and a second set of uplink power control parameters for transmitting the UCI to the second TRP. The UE may transmit the UCI to the first TRP and to the second TRP in the PUCCH resource, based on the first set and the second set of uplink power control parameters, and without an uplink control channel beam indication.

Embodiments are disclosed for Sounding Reference Signal (SRS) uplink power control in case of multiple Transmission and Reception Points (TRPs). In one embodiment, a method in a User Equipment (UE) comprises receiving information that configures first and second SRS resource / resource sets with first and second SRS sequences and first and second sets of power control parameters, respectively, wherein the first and second SRS resources / resource sets are associated with a same set of UE antenna ports. The method further comprises transmitting, at a first instant(s), a first SRS using the first SRS resource / resource set with the first SRS sequence at a first uplink power level determined based on the first set of power control parameters and transmitting, at a second instant(s), a second SRS using the second SRS resource / resource set with the second SRS sequence at a second uplink power level determined based on the second set of power control parameters.

Methods, systems, and devices for wireless communications are described. In an absence of signaled uplink power control parameters for either of a first transmission configuration indicator (TCI) state associated with a first transmission and reception point (TRP) or a second TCI state associated with a second TRP, a user equipment (UE) communicating with the first TRP and the second TRP may select at least one of a first set of power control parameters associated with the first TRP or a second set of power control parameters associated with the second TRP in accordance with a default uplink power control parameter scheme. The UE may perform a first transmission to the first TRP in accordance with the first set of uplink power control parameters and a second transmission to the second TRP in accordance with the second set of uplink power control parameters.

Techniques pertaining to efficient uplink (UL) power control for dynamic time-division duplex (TDD) and subband full duplex (SBFD) in mobile communications are described. A user equipment (UE) performs an UL transmission with TDD in an SBFD network (including dynamic TDD and SBFD). The UE separately controls UL transmit powers used in performing the UL transmission on cross-link interference (CLI) slots and on non-CLI slots.

An uplink power control method includes: receiving, by a terminal device, configuration information of a maximum transmitting power sent by an access network device, the configuration information of the maximum transmitting power being configured to determine respective panel maximum transmitting powers PCMAX,P corresponding to uplink transmissions respectively performed by the terminal device via two antenna panels in a case of scheduling STxMP by M-DCI. The terminal device includes a plurality of antenna panels and supports simultaneous uplink transmissions via the plurality of antenna panels.

A method and apparatus for power control for distributed wireless communication is disclosed including one or more power control loops associated with a wireless transmit / receive unit (WTRU). Each power control loop may include open loop power control or closed loop power control. A multi-phase power control method is also disclosed with each phase representing a different time interval and a WTRU sends transmissions at different power levels to different set of node-Bs or relay stations during different phases to optimize communications.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) that schedules an uplink communication in an uplink frequency band. The UE may transmit, at an uplink frequency within the uplink frequency band, the uplink communication with a power that varies over the uplink frequency band based at least in part on a location of the uplink frequency relative to a downlink frequency band associated with the UE. Numerous other aspects are provided.

The invention relates to the technical field of communication, in particular to a communication method and device and a storage medium. The method applied to the terminal equipment comprises the following steps: receiving a first uplink power control parameter set aiming at a first working mode (such as a non-full-duplex mode) and a second uplink power control parameter set aiming at a second working mode (such as a full-duplex mode) sent by network equipment; under the condition of determining that the uplink signal corresponds to the first working mode, sending the uplink signal based on the first uplink transmitting power; and when it is determined that the uplink signal corresponds to the second working mode, sending the uplink signal based on the second uplink transmission power. Wherein the first uplink transmitting power is determined based on the first uplink power control parameter set, and the second uplink transmitting power is determined based on the second uplink power control parameter set. According to the embodiment of the invention, the terminal equipment can transmit the uplink signal by using the uplink transmission power adaptive to the working mode of the network equipment, so that the accurate control of the power in different modes is realized.

Examples pertaining to repeater gain control for device collaboration in distributed MIMO systems are described. An apparatus (e.g., a repeater) may determine a first compensation value for a first path loss on a first link between the apparatus and a UE, and determine a second compensation value for a second path loss on a second link between the apparatus and a network node of a wireless network. The apparatus may also determine a repeater gain for uplink power control according to the first compensation value and the second compensation value. The apparatus may further forward a radio signal from the UE to the network node according to the repeater gain.

Methods, systems, and devices for wireless communications for a user equipment (UE) are described. The UE may receive an indication of a subband configuration for an operating bandwidth of the UE, the subband configuration indicating a division of the operating bandwidth into multiple subbands. The UE may perform multiple uplink power control procedures for the subbands to obtain subband-specific transmit powers for the subbands. The UE may transmit one or more uplink messages via the subbands using the subband-specific transmit powers obtained from the uplink power control procedures. In some examples, the UE may transmit uplink reference signals via the subbands, and receive, such as from a network entity, an indication of measurements corresponding to the reference signals. The UE may obtain the subband-specific transmit powers based on the measurements.

The invention firstly discloses a terminal uplink power control method. The method comprises the following steps of: determining whether uplink signal transmission is in a communication interference coexistence state with an adjacent station sensing signal or not; if so, generating or acquiring an uplink power control parameter or an inductance interference constraint factor aiming at the state; and determining the transmitting power of the uplink signal of the terminal based on the parameter or the factor. The invention further comprises network side equipment, terminal side equipment, communication equipment, a storage medium and a system which are used for implementing the method. According to the method and the device, the problems that the existing power control mechanism lacks targeted interference constraints and is insufficient in dynamic coordination capability when the same-frequency interference of the uplink signal of the terminal and the sensing signal of the adjacent station coexist in the communication and sensing fusion network are solved, and the method and the device are particularly suitable for the scene of communication and sensing service fusion deployment in 5G and subsequent mobile communication systems.

Apparatuses and methods for power control for data and control channels. A method of operating a user equipment includes receiving information for a first transmission occasion for a physical uplink shared channel (PUSCH) and a second transmission occasion for a second physical uplink control channel (PUCCH) and receiving a first transmit power control (TPC) command. The method further includes determining a first power control adjustment state based on the first TPC command and a second power control adjustment state based on the first power control adjustment state. The method further includes transmitting the PUSCH in the first transmission occasion using the first power and the PUCCH in the second transmission occasion using the second power.

The apparatus determines an association between one or more transmission configuration indicators (TCIs) and one or more corresponding uplink power control (ULPC) configurations based on a control message, receives control information indicating a transmission configuration indicator (TCI) for a transmission on an uplink (UL) channel, and determines a transmission power for the transmission on the uplink (UL) channel based on an uplink power control (ULPC) configuration associated with the transmission configuration indicator (TCI).

Mitigation of interference between terrestrial networks (TN) and non-terrestrial networks (NTN) in integrated communication systems may be achieved by reducing the interference at both networks such that co-channel inter-system interference may be minimized and spectral efficiency may be improved. Additionally, by improving spectrum sharing between TN and NTN, higher throughput may be achieved and user coverage may be expanded. By integrating a directional interference adjustment factor (DIAF) into a power control mechanism, a system can make more informed and precise adjustments to its transmit power. By considering the DIAF, the system may dynamically adjust power to, thereby, minimize interference with other networks or users. Minimization of interference is especially convenient in environments where multiple networks share the same spectrum. Adjusting power based on the DIAF helps maintain a better signal to interference and noise ratio, leading to more reliable communication and better data rates.

A base station performing random access procedure includes: processor circuitry configured to generate a protocol data unit which includes: a first unit including a random access response, the random access response not including an uplink grant, the random access response signal including information on uplink power control, and a second unit including data; and a transmitter configured to transmit the protocol data unit.

Various aspects of the present disclosure relate to a virtual user equipment (VUE) and method for uplink power control by the VUE. The method includes communicatively connecting to and collaborating with at least one second UE to enable a VUE, each UE within the VUE having at least one closed-loop uplink power control loop, with at least a first loop of the at least one loop of each UE assigned to be utilized for VUE communications. The method includes determining, by a processor of the user equipment, a number of trackable closed-loop uplink power control loops for VUE communications as a sum of a number of first loops of each UE within the VUE. The method further includes forwarding to a serving base station of the VUE, an indication of the number of trackable closed-loop uplink power control loops for VUE communications.

This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for interference-aware uplink power Control. A UE (302) receives (306) a first control signal indicating a plurality of power control parameter sets. The UE (302) receives (308) a second control signal to trigger an uplink signal based on at least one of the plurality of power control parameter sets. The UE (302) transmits (314) the uplink signal with a transmission power determined based on the at least one of the plurality of power control parameter sets.

A method for uplink power control in a cell-free massive MIMO system supporting URLLC is disclosed, comprising: 1: constructing a cell-free massive MIMO system supporting URLLC; 2: establishing a channel model; 3: all users sending pilot signals to all access points for pilot training; 4: performing channel estimation to obtain an estimated channel coefficient vector; 5: all users simultaneously transmitting uplink data to all access points, with each access point preprocessing the data signals of all users; 6: a central processing unit jointly decoding the preprocessed signals to obtain user signals corresponding to the users; 7: calculating the user's signal-to-noise ratio and the user's uplink achievable rate; 8: establishing problem P1; 9: transforming problem P1 into problem P2; 10: transforming problem P2 into problem P3; and 11: solving problem P3 to obtain a local optimal solution to the user weighted sum rate maximization problem. The method reduces the adverse effects of channel aging on the cell-free massive MIMO system supporting URLLC.

A method may include receiving, from a serving network element, an indication indicating at least one of whether at least one power component corresponding to at least one cell among one or more cells should be considered for uplink power control, a type of at least one power component that should be considered for uplink power control, or at least one cell among one or more cells of which at least one power component should or should not be considered for uplink power control. The method may also include obtaining information of the at least one power component corresponding to the at least one cell based on the received indication. The method may further include determining an uplink transmission power based on the obtained information of the at least one power component. The method may also include performing an uplink transmission based on the determined uplink transmission power.

Various aspects of the disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can receive downlink control information (DCI) scheduling an uplink communication in an uplink frequency band. The UE can transmit the uplink communication at an uplink frequency within the uplink frequency band with a power that varies over the uplink frequency band based at least in part on a location of the uplink frequency relative to a downlink frequency band associated with the UE. Numerous other aspects are provided.

This invention discloses a method for controlling uplink power in a single-cell cellular network based on a graph attention-conditional generation and diffusion model. The method optimizes the network energy efficiency of the uplink data transmission model in a single-cell cellular network using the Tinkelbach optimization method. A graph-structured dataset is constructed based on the single-cell cellular network and user equipment (UE). The graph attention-conditional generation and diffusion model is then constructed for uplink power control. This model is trained using the training set and supervised learning target labels from the graph-structured dataset. Based on channel state information and constraint boundaries, the trained graph attention-conditional generation and diffusion model is used to sample the user's uplink transmission power. Based on the sampled user uplink transmission power value, the uplink power of the single-cell cellular network is controlled. The sampled UE transmission power can approximate the upper limit of network energy efficiency to a large extent, thereby ensuring communication quality.

Methods, systems, and devices for wireless communications for a user equipment (UE) are described. The UE may receive an indication of a subband configuration for an operating bandwidth of the UE, the subband configuration indicating a division of the operating bandwidth into multiple subbands. The UE may perform multiple uplink power control procedures for the subbands to obtain subband-specific transmit powers for the subbands. The UE may transmit one or more uplink messages via the subbands using the subband-specific transmit powers obtained from the uplink power control procedures. In some examples, the UE may transmit uplink reference signals via the subbands, and receive, such as from a network entity, an indication of measurements corresponding to the reference signals. The UE may obtain the subband‑specific transmit powers based on the measurements.

Provided in the embodiments of the present application are a method for power control, a terminal device, and a network device. The method includes: performing, by a network device, uplink power control according to first transmit information and second transmit information. The first transmit information is transmit information of a terminal device on a Supplementary Uplink (SUL) band during a first time period, and the second transmit information is transmit information of the terminal device on a Normal Uplink (NUL) band during the first time period.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit, to a user equipment (UE), a message indicating an uplink transmission configuration indication (TCI) state. In some aspects, the message may further indicate a power control parameter associated with the uplink TCI state. For example, the power control parameter may include a pathloss offset or pathloss scaling factor to apply to the indicated uplink TCI state, a pathloss scaling factor to apply to the indicated uplink TCI state, or a transmit power control (TPC) command applied to a closed-loop index associated with the indicated the uplink TCI state. In this way, some aspects described herein can be used for uplink power control in an uplink dense deployment that includes one or more uplink-only network nodes that do not transmit a downlink pathloss reference signal (PLRS).

An operation method of a first device may comprise the steps of: receiving device control information for controlling the first device from a second device; identifying one or more types of power control information, which are included in the device control information and related to uplink power control of the first device; identifying an association relationship between the one or more types of power control information and one or more resources for uplink transmission of the first device; and on the basis of the one or more types of power control information associated with the one or more resources, determining one or more uplink transmission power values corresponding to the one or more resources.

A method comprises transmitting, by a first apparatus (a user equipment (UE)) to a second apparatus (a network device), capability information (e.g. in a MAC CE, RRC, or uplink control message) indicating capability of performing pathloss prediction, indication of performing uplink transmission based on pathloss prediction, or capability of performing pathloss prediction for prediction-based beam switching. The first apparatus receives, from the second apparatus, a transmission configuration indicator (TCI) switching command to a target TCI state, or an indication to transmit an uplink transmission. The first apparatus determines, based on the received TCI switching command or the received indication, exclusion of a pathloss measurement delay from a switching delay time for the target TCI state and / or a transmission delay time for the uplink transmission. The capability information may indicate capability of performing uplink transmission based pathloss prediction associated with a set of configured reference signals. The predicted pathloss may be used to apply uplink power control (UL TPC) in an uplink transmission.

A terminal device receives first indication information indicating first precoding information and second precoding information. The terminal device determines a first group of power control parameters corresponding to the first precoding information and determines a second group of power control parameters corresponding to the second precoding information. The terminal device determines first transmit power based on the first group of power control parameters and sends a first PUSCH repetition based on the first transmit power and the first precoding information, and determines second transmit power based on the second group of power control parameters and sends a second PUSCH repetition based on the second transmit power and the second precoding information.

Embodiments of apparatuses, systems, and methods are provided herein for user equipment devices (UEs) and networks to perform closed-loop transmit power control in a multi-base station environment with out-of-order scheduling. The network can configure a series of transmit power control commands to indicate to the UE transmit powers for one or more transmissions to different base stations. The UE can receive the transmit power control commands, consider information including timing and / or resources associated with the transmit power control commands, and determine transmit powers for the transmissions.

The invention provides a power control method and device, and relates to the field of communication. The method comprises: a network device sending first information to a terminal device, the first information being used for updating a first power of a first uplink signal, the first power being a maximum transmitting power that can be used when the terminal device sends the first uplink signal; the terminal equipment obtains second power based on the first information, the second power is the updated first power, the terminal equipment sends a first uplink signal to the network equipment, and the transmitting power of the first uplink signal is determined based on the second power. Therefore, the first power is not fixed and can be updated, and the flexibility of the uplink power control method can be improved.

The present disclosure provides systems, apparatuses, devices, and methods, including computer programs encoded on storage media, for uplink power control with only uplink TRPs. A UE receives (320) a configuration indicating a first path loss offset for uplink power control and one or more joint or downlink or uplink-joint / DL / UL transmission configuration indicator, TCI, states for downlink operation in a single transmission reception mode and for uplink operation in a multiple transmission reception mode. The UE (102) receives (340) a path loss reference signal, PL- RS, for at least one of a first scenario or a second scenario. The UE (102) transmits (390) an uplink transmission based on a joint or UL-joint / UL TCI state from the one or more configured joint / DL / UL TCI states and at a transmission power based on the PL- RS and the first path loss offset.