Patent classifications
H04B17/102
TRANSMIT DIVERSITY POWER LEAKAGE DETECTION AND FILTERING IN ANTENNA COMPENSATOR POWER DETECTOR
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may filter leaked power from a signal to accurately perform antenna compensation operations (e.g., apply a transmit gain, perform cable loss measurements) using valid power. A switch at the UE may leak power to an antenna for a transmission, and the UE may use a dynamic filtering algorithm to determine whether a pulse power of a detected signal is leaked or valid. The dynamic filtering algorithm may be able to account for variations in leaked power values, as leaked power may increase or decrease proportionally to intended power (e.g., from which power was leaked). By determining whether pulse power is leaked or valid, the UE may be able to filter out the leaked power and accurately perform antenna compensation operations such as applying a transmit gain for a transmission, performing a cable loss measurement, or the like.
SYSTEMS AND METHODS FOR SELECT RADIO UNIT TRANSMISSION POWER IN RADIO ACCESS NETWORKS
Systems and methods for select RU transmission power in RANs are provided. In one embodiment, a controller for a RAN is provided. The RAN includes a BBU entity coupled to a plurality of RUs providing wireless communications service to UEs in a coverage area, the controller comprises a processor executing: a power assessment function that determines a transmit power level for RUs based on RU configuration data; an information block dissemination function that communicates an information block to the RUs based on the transmit power level determined by the power assessment function; the information block dissemination function communicates a first information block to a RU that indicates a first power level, and a second information block to a second RU that indicates a second power level different than the first; within the coverage area, the downlink signals of the first RU are isolated from downlink signals of the second RU.
Repeaters capable of simultaneous repeating operation and power detection
A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a repeater node. The apparatus may receive, at one or more first antennas of the node, a first signal via at least one first beam. The apparatus may measure, at one or more third antennas of the node, at least one of a power or a quality of at least one third beam. The at least one of the power or the quality of the at least one third beam may be measured at a same time as the first signal is received. The apparatus may forward, at one or more second antennas of the node, the first signal via at least one second beam.
Method for measuring power of non-constant envelope modulated signal, and electronic device
The disclosure provides a method for measuring a power of a non-constant envelope modulated signal, an electronic device, and a computer readable storage medium. The method includes: sampling baseband I/Q data transmitted by a device under test to obtain sample data, in which a sampling duration is less than a length of a cycle of the non-constant envelope modulated signal; calculating a sample power within the sampling duration based on the sample data; matching in predetermined baseband I/Q data in the cycle based on the sample data to obtain a target baseband I/Q data segment; obtaining a power calibration value corresponding to the target baseband I/Q data segment; and obtaining an actual power of the non-constant envelope modulated signal in the cycle based on the power calibration value corresponding to the target baseband I/Q data segment and the sample power within the sampling duration.
Transmit-signal strength indicator circuit and transmitting circuit
A signal strength indicator circuit, configured to detect a power of an output signal outputted by a power amplifier, includes a voltage gain circuit, a current gain circuit, a multiplier, and a buffer stage. The voltage gain circuit provides a first gain to the output signal to generate a first value of an indicating voltage when a voltage of the output signal is not greater than a threshold, and provides a second gain to generate a second value of the indicating voltage when the voltage of the output signal is greater than the threshold. The first gain is greater than the second gain. The current gain circuit generates an indicating current according to an input signal corresponding to the output signal. The multiplier multiplies the indicating voltage and the indicating current to generate an indicating power. The buffer stage converts the indicating power to the indicating signal.
Over-the-air measurement system
The present disclosure provides an over-the-air measurement system for testing a device under test. The over-the-air measurement system includes at least two orthomode transducers and at least two antennas. Each of the antennas is connected to a dedicated orthomode transducer respectively, thereby establishing at least two measurement modules. The at least two orthomode transducers are rotated relative to each other, thereby providing different measurement polarizations of the at least two measurement modules with respect to a common reference plane.
OTA Estimation of an RF Parameter of a Radio Transmitter
There is provided mechanisms for OTA estimation of an RF parameter of a radio transmitter. A method is performed by a measurement equipment. The method comprises obtaining information of spatial radiation pattern used by the radio transmitter and power allocation used by the radio transmitter for transmission of a signal using the spatial radiation pattern. The method comprises obtaining a measurement of at least one of signal power and signal frequency of the signal as transmitted from the radio transmitter by measuring on the signal. The measurement is made with respect to spatial orientations and distance between the radio transmitter and the measurement equipment. The method comprises estimating the RF parameter for the signal transmitted by the radio transmitter from the measurement and using the information of spatial radiation pattern, power allocation, and spatial orientations and distance.
TECHNIQUES FOR SIGNALING MAXIMUM PERMISSIBLE EXPOSURE BACKOFF INDICATION
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an average energy level radiated by the UE over a time period. The UE may determine whether the average energy level radiated by the UE over the time period exceeds a maximum permissible exposure (MPE) limit. The UE may transmit, to base station, a medium access control (MAC) control element (MAC-CE) that includes information related to a power management maximum power reduction (P-MPR) applied at the UE and/or an uplink duty cycle in effect at the UE based at least in part on the average energy level radiated by the UE over the time period exceeding the MPE limit. Numerous other aspects are provided.
TERMINAL AND COMMUNICATION METHOD
A terminal includes: a control section that generates Capability information including UE Capability for a Power Class; and a transmission section that transmits the Capability information. The Power Class is specified by four items of Max Total Radiated Power (TRP), Max peak Equivalent Isotropic Radiated Power (EIRP), Min peak EIRP, and Spherical coverage EIRP, and an Inter-band-Carrier-Aggregation (CA) specified value of at least one of the Max peak EIRP and the Min peak EIRP for Inter-band CA in which a plurality of bands are used is defined by a method different from a method for a non-Inter-band-CA specified value.
TERMINAL AND COMMUNICATION METHOD
A terminal includes a receiving unit that receives P-Max that is configuration information of maximum transmit power in a cell in Frequency Range 2 (FR2) among Frequency Range 1 (FR1) and the FR2; and a control unit that performs, when the P-Max of the cell in the FR2 is not supported, an operation of ignoring the P-Max of the cell in the FR2 or an operation of considering the cell in the FR2 as a barred cell.