Power Management TRIZ Cases

Adjusting carrier PA voltage from next-timeslot power control cuts GSM base station energy use while preserving RF output during occupied slots.

Probability-based decoding and CRC filtering help wireless devices distinguish uplink grants from noise and avoid premature transmission stops.

Constellation superposition lets an eNB share time-frequency resources across users while signaling MCS and power splits to manage interference.

A DC offset current in the high-frequency path cuts linear amplifier output-stage dissipation in envelope tracking power supplies.

A specific error check field acts as a virtual CRC to cut false control detections and improve radio resource use in wireless links.

A longer first HE-LTF cyclic prefix enables WLAN AGC estimation without separate short training fields, cutting preamble overhead.

Detects receiver gain changes and freezes digital signal amplitude to prevent frame decoding errors under varying channel conditions.

Temperature and output power feedback let a modem adjust RF input power to offset mmWave PA gain drop and limit power use.

Adaptive gain control uses slot correlation to set receiver gain early, avoiding LNA saturation and missed sidelink decoding.

Dynamic AGC mode selection uses interference type and channel quality to cut transients, distortion, and link loss in wireless networks.

Noise-floor feedback adjusts receiver attenuation only when broadband intermodulation raises interference, preserving sensitivity and reducing desense.

Switchable local oscillator quality helps wake-up receivers balance low power use with adjacent channel interference tolerance.

Switching high- and low-gain RF paths cuts base station RF chain complexity and power use while preserving beamforming efficiency.

Delayed switch transistors cut unnecessary discharge current and speed DC-coupled clock level shifting across power domains.

Shared baseband filter and ADC feedback paths cut silicon area and power while easing clock jitter limits in wideband receivers.

A replacement timing path smooths loop timing across non-illumination periods, cutting burst re-synchronization errors and demodulation faults.

A receiver switches from loop-filter timing updates to long-window replacement values to keep bursty wireless signals synchronized during gaps.

Signal splitting and phase adjustment let a composite RF amplifier keep high efficiency from power back-off to rated power with fewer transmit channels.

Compressing a 20 ms uplink transmission into 10 ms enables DTX in the remaining interval, cutting UE battery use while preserving link reliability.

A master-clock synchronization scheme preserves phase relationships when clocks are disabled and re-enabled, reducing current spikes and heat.

Joint base-layer and enhancement-layer compression cuts 3D video bit rate while keeping standard 2D decoding compatible.

Over-the-air array calibration replaces per-element checks to improve power and phase consistency while reducing 5G calibration time.

Modem-guided local oscillator voltage selection cuts RFIC power use while keeping phase noise within allowable limits.

Closed-loop audio activity detection cuts always-on microphone power use while preserving ambient vs non-ambient wake-up accuracy.

Large-signal gain feedback lowers RF amplifier power during impedance mismatch, protecting components without costly output isolators.

Core and enhanced signals are combined at different power levels, then normalized and interleaved to improve broadcast transmission reliability.

Separate directional couplers measure each aggregated LTE carrier, enabling precise power control, lower peak power, and less interference.

A low-leakage starter circuit uses the transceiver antenna and valid pulse sequencing to wake implantable devices without bulky magnetic switches.

Scheduled reveille times let RF tags hibernate between beacon exchanges, cutting power use while preserving indoor localization accuracy.

A hybrid linear-switching regulator maintains target coupling voltage across ET and other modes to improve RF amplifier efficiency and linearity.

One amplifier is switched between transmit and receive paths to cut RF hardware count, power use, and manufacturing cost.

Separate broadcast and unicast power amplifiers improve M-MIMO coverage and beamforming while cutting power use and avoiding extra antennas.

Multiple capacitance thresholds and signal stability analysis distinguish human body proximity from objects, avoiding unnecessary RF power reduction.

Core and enhanced broadcast signals are combined at different power levels, then normalized and interleaved for more flexible multiplexing.

Dynamic HE-SIG-B puncturing adapts BCC rate-matching to field length and coding rate, reducing WLAN overhead in dense deployments.

Splitting each NOMA user stream into asynchronous FEC-coded sub-streams improves spectral efficiency and bit error performance.

Output-power thresholds switch source voltage and bias modes to cut RF amplifier power use when high-speed DC-DC tracking is inefficient.

Carrier-frequency thresholds let a receiver reuse or simplify AGC gain settings, reducing measurement time, radio activity, and power use.

A scheduled comparator-reuse circuit sorts data over multiple phases to cut median filter area and power without losing filtering capability.

A radio module autonomously shifts the power amplifier into a low-power state during idle transmission gaps, cutting energy use without slowing recovery.

CRC-guided selective combining switches to soft combining only when needed, recovering macro diversity gain from multiple base stations.

Dynamic clock scaling across parallel processing paths cuts multi-RAT power use while preserving bandwidth support and signal quality.

Adaptive modulation uses combined and extended constellations to improve MUST transmission efficiency on non-aligned resources.

Shared baseband filter and ADC circuitry cuts silicon area and power while easing clock jitter limits in wideband receivers.

Feedback-controlled PMOS switching keeps envelope-tracking PA supply voltage efficient while limiting switch stress in multi-protocol RF circuits.

Switching between wide-band calibration and narrow-band reception helps a wake-up receiver keep sensitivity while tolerating frequency shift.

Bandwidth-compressed envelope tracking reshapes the RF supply waveform and uses predistortion to preserve linearity and spectral performance.

Measured delay-element selection gives integer-mode DPLLs finer phase steps, cutting jitter, phase noise, and drift in wireless clocks.

Over-the-air calibration aligns power amplifiers and phase shifters across antenna arrays to improve 5G signal accuracy and calibration speed.

A 2D RSSI and packet-length pattern lets a low-power wakeup receiver detect valid BLE signals with low latency and few false alarms.