258 results about "Uplink power control" patented technology

Certain aspects of the present disclosure provide a method for wireless communications at a user equipment (UE). The UE may receive a configuration from a base station (BS). The configuration may indicate transmission parameters associated with different symbols such as sub-band full duplex (SBFD) symbols and non-SBFD symbols. For example, the transmission parameters may indicate power control parameters (e.g., a received power target value, a power control factor value, a closed-loop power control value) and a unified transmission configuration indicator (TCI) (e.g., a joint uplink and downlink TCI state, separate uplink and downlink TCI states). The UE may transmit uplink transmissions to the BS, in accordance with the transmission parameters.

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.

A wireless device receives one or more configuration parameters indicating: one or more uplink power control sets; and a plurality of transmission configuration indicator (TCI) states for a cell. The wireless device transmits, in response to the one or more configuration parameters not comprising a two-power-headroom-report-mode (twoPHRMode) parameter that indicates to report two power headroom values associated with two sounding reference signal (SRS) resource sets of the cell, a power headroom medium-access control (MAC) control element (CE) indicating one Type 1 power headroom value for the cell. The one Type 1 power headroom value is determined using: first power control parameters in a first uplink power control set, of the one or more uplink power control sets, associated with a first TCI state of two indicated TCI states; and a first pathloss reference signal associated with the first TCI state.

Apparatuses, methods, and systems are disclosed for uplink power control. One method includes receiving uplink power control parameters. The method includes determining a first transmit power for the first uplink transmission based on a corresponding first set of uplink power control parameters. The method includes determining a second transmit power for the second uplink transmission based on a corresponding second set of uplink power control parameters. The method includes performing the first uplink transmission using a first uplink transmission beam pattern or a first spatial domain transmission filter based on the first transmit power. The method includes performing the second uplink transmission using a second uplink transmission beam pattern or a second spatial domain transmission filter based on the second transmit power.

Apparatus and methods for determining an uplink pathloss for a communications device. A system comprises: a first infrastructure equipment; a second infrastructure equipment; and a communications device configured to communicate with the first infrastructure equipment via a first air interface provided by the first infrastructure equipment, and to communicate with the second infrastructure equipment via a second air interface provided by the second infrastructure equipment. The first air interface is an uplink-only interface for the communications device, and wherein the second air interface is both an uplink and downlink interface for the communications device. The uplink pathloss for the communications device on the first air interface is determined based on a received signal power of a first reference signal at the first infrastructure equipment and a transmission power of the first reference signal.

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.

An apparatus includes at least one processor; and at least one memory including computer program code; wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to: determine a transmission power requested with a network node; determine a transmission quality class based on the transmission power requested with the network node; wherein the transmission quality class comprises a predefined maximum power reduction; determine an output power value based on the transmission quality class; determine an uplink transmission power as a minimum of: the output power value, and the transmission power requested with the network node; and transmit an uplink transmission, based on the uplink transmission power.

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a reader device. The reader device transmits an incident signal to an ambient internet of things (A-IoT) device. The reader device receives a response from the A-IoT device. The reader device adjusts a power of the incident signal based on a status of the response such that the power of the incident signal is at a level sufficient for communication with the A-IoT device while controlling interference with other devices.

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.

The invention provides a satellite communication method and device, a satellite base station, a storage medium and a program product, which can be applied to the technical field of satellite communication. The method is applied to a satellite base station, and comprises the following steps: determining the current wave position of a terminal; determining a receiving gain corresponding to the beam position based on the distance between the satellite base station and the beam position; and performing gain compensation on the uplink signal of the terminal by adopting the receiving gain. According to the invention, the terminal does not need to frequently perform uplink power control, the power control operation of the terminal is reduced, the power consumption of the terminal is further reduced, and the signaling power consumption between the terminal and the satellite base station is also reduced.

Various aspects of the present disclosure relate to uplink power control configuration. An apparatus, such as a user equipment (UE), receives a configuration message for uplink power control, the configuration message indicating one or more uplink power control parameter sets each associated with a different time resource type. The UE transmits, based at least in part on the configuration message and according to the one or more uplink power control parameter sets, an uplink transmission using a first uplink transmit power for the uplink transmission during a first time resource type and using a second uplink transmit power during a second time resource type.

The present application relates to devices and components including apparatus, systems, and methods for uplink power control for channels having repetitions.

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.

The invention discloses a cell-free large-scale MIMO uplink power control method supporting URLLC. The method comprises the following steps: 1, constructing a cell-free large-scale MIMO system supporting URLLC; 2, establishing a channel model; 3, all the users send pilot signals to all the access points, and pilot training is carried out; 4, performing channel estimation to obtain an estimated channel coefficient vector; 5, all the users transmit uplink data to all the access points at the same time, and each access point preprocesses data signals of all the users; 6, the central processing unit carries out joint decoding on the preprocessed signals to obtain user signals of the corresponding users; 7, calculating the signal-to-noise ratio of the user, and calculating the uplink reachable rate of the user; 8, establishing a problem P1; 9, converting the problem P1 into a problem P2; 10, converting the problem P2 into a problem P3; and 11, solving the problem P3 to obtain a local optimal solution of the weighting and rate maximization problem of the user. The method has the effect that the adverse effect of channel aging on the cell-free large-scale MIMO system supporting the URLLC is reduced.

The invention discloses a method and an apparatus in a node used for wireless communication reference signal transmission. A first node receives a first signaling, wherein the first signaling indicates a first reference signal resource; receiving a second signaling and a first reference signal, wherein whether the first reference signal can be used for calculating path loss together with other reference signals received in the first reference signal resource depends on the second signaling; a resource unit occupied by the first reference signal in a time unit where the first reference signal is located belongs to the first reference signal resource. According to the method, the calculation problem of the path loss in uplink power control is enhanced, the communication and sensing integration technology can be supported on the premise that the change cost of an existing network is low, fusion between communication and sensing is completed, the function of sensing auxiliary communication is achieved, the probability that the path loss is affected by outliers is reduced, and the path loss can be estimated correctly.

A method, device and system for performing wireless communication in a wireless communication system that includes a low power node and a macro base station with common baseband and user equipment. The user equipment communicates with the low power node and the macro base station via a plurality of component carriers. The method includes: receiving, by the user equipment, a downlink signal transmitted by the low power node and the macro base station; and transmitting uplink signals to the low power node and the macro base station, wherein the method further includes: transmitting all first uplink signals of the uplink signals to the low power node as a receiving node. Accordingly, efficiency of uplink power control of a terminal may be increased and / or the burden for uplink control channel transmission of a macro cell may be reduced.

The present application discloses a method and apparatus used in a node for wireless communication reference signal transmission. A first node receives first signaling, wherein the first signaling indicates a first reference signal resource; and receives second signaling and a first reference signal, wherein whether the first reference signal can be used together with other reference signals received in the first reference signal resource for path loss calculation depends on the second signaling, and the resource element occupied by the first reference signal in a time unit where the first reference signal is located belongs to the first reference signal resource. The present application enhances the calculation of path loss in uplink power control, and can support an integrated sensing and communication technology with minimal modification costs to the existing networks, thereby achieving fusion of communication and sensing, achieving the function of sensing-aided communication, reducing the probability of path loss being affected by outliers, and facilitating accurate estimation of path loss.

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.

Apparatuses, methods, and systems are disclosed for uplink power control. One method includes receiving uplink power control parameters. The method includes determining a first transmit power for the first uplink transmission based on a corresponding first set of uplink power control parameters. The method includes determining a second transmit power for the second uplink transmission based on a corresponding second set of uplink power control parameters. The method includes performing the first uplink transmission using a first uplink transmission beam pattern or a first spatial domain transmission filter based on the first transmit power. The method includes performing the second uplink transmission using a second uplink transmission beam pattern or a second spatial domain transmission filter based on the second transmit power.

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.

A wireless device receives configuration parameters of a plurality of cells grouped into: a primary physical uplink control channel (PUCCH) group comprising a primary cell with a primary PUCCH, and a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH. The wireless device receives, for a cell in the plurality of cells, downlink control information comprising a PUCCH transmit power control (TPC) command and scheduling information for the cell. The downlink control information does not have either a downlink control information format 3 or a downlink control information format 3A. The wireless device determines whether the cell is the primary cell or the PUCCH secondary cell. Based on the determining, the wireless device calculates a transmit power for one of the primary PUCCH and the secondary PUCCH and transmits uplink signals with the transmit power.

The technology described herein is directed towards dynamically determining, based on current environment state data, a number of coverage zones within a base station's coverage area, and physical uplink shared channel (PUSCH) closed-loop power control-related data for user equipment in each zone. In one implementation, a deep reinforcement learning (DRL)-based system includes a first DRL agent that, based on the current environment state, outputs the optimal number of zones. Based on the current environment state data and the number of zones, a second DRL agent outputs optimal per-zone target signal-to-interference-plus-noise ratio (SINR) values. The SINR values are used in outputting transmit power control data to the UEs in each coverage zone. Also described is deep reinforcement learning by the system based on a reward function that can balance enhanced power efficiency with enhanced throughput to determine the optimal number of zones and SINR values for various current environment state data.

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.

According to some embodiments, a method of operating a network node is provided. A first information element IE is provided including an indication of an added synchronization signal block / physical cell identity SSB / PCI. The indication of the added SSB / PCI indicates an SSB and associated PCI that are associated with a radio link. A second IE is provided including the indication of the added SSB / PCI. The second IE relates to at least one of channel state information CSI, radio link monitoring, uplink power control, and / or uplink spatial relations. A control message including the first IE and the second IE is transmitted to a user equipment UE, to enable the UE to perform a radio link monitoring function on the radio link.

Apparatuses, methods, and systems are disclosed for uplink power control. One method includes: operating a network entity with multiple antenna arrays; determining a first closed-loop power control process for a first set of uplink beam patterns based on a first antenna array of the multiple antenna arrays, wherein at least one receive beam pattern of the first antenna array is used to receive a first uplink transmission using at least one uplink beam pattern; determining a second closed-loop power control process for a second set of uplink beam patterns based on a second antenna array of the multiple antenna arrays, wherein the second antenna array is different from the first antenna array; and indicating to the device in a configuration message the first closed-loop power control process and the second closed-loop power control process.

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.

The invention discloses a method and an apparatus in a node used for wireless communication reference signal transmission. A first node receives a first signaling, the first signaling indicating a first reference signal resource, and the first signaling determining a first time window; determining a sending power value of the first signal; the first signal occupies a first time unit in a time domain; the first time window is configured to the first reference signal resource, and the first time window is not earlier than a time domain resource occupied by the first reference signal resource in a time domain; the transmit power value of the first signal depends on whether the first time unit overlaps the first time window and a type of reference signal transmitted in the first reference signal resource. According to the invention, uplink power control is enhanced, a method for flexible balance between communication and perception is provided, the probability of error detection is reduced, the perception performance is improved, and the system is more adaptive.

The embodiment of the invention provides an uplink power control method and device, and the method comprises the steps: carrying out the uplink power control through employing a corresponding power control mode based on the channel type of an uplink channel of a mobile terminal; the channel type comprises a control channel and a traffic channel. Corresponding power control modes can be adopted for different uplink channel types, and the uplink power control efficiency and effect are improved.

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.