Error Prevention TRIZ Cases
- Parallel ARQ Status Reporting for Low-Latency Packet Recovery
Parallel threads compile ARQ bit reception status without locks, cutting Status PDU latency and speeding packet recovery in high-throughput links.
- Service-Based Network Architecture for Dynamic Resource Orchestration
Modular network functions are selected and activated on demand to deliver tailored communication services with better resource efficiency.
- Multi-RU LDPC Tone Mapping for Higher WLAN Throughput
LDPC tone mapping across aggregated multi-RUs improves WLAN throughput and frequency diversity without proportional signaling overhead.
- Adaptive Reply Timer Setting for AIoT Communication Feedback
Adjustable feedback duration lets the network wait longer for slower AIoT terminals and avoid false no-reply decisions.
- FlexE Sub-Slot Allocation for Equal PTN Bandwidth Transmission
Equal data-block grouping lets FlexE create finer PTN sub-slots, support full-flow client transmission, and reduce bandwidth waste.
- Vehicle Update Data Buffering to Cut Transfer Latency
Buffered data blocks and parallel preparation reduce vehicle update transfer delays while preserving reliable acknowledgments.
- PUSCH Resource Release Criteria for 2-Step Random Access
Defined release criteria let 5G networks reclaim PUSCH resources after 2-step random access completion or retry-limit expiry.
- HARQ Process Selection for Delay-Critical Uplink Data
Delay status reporting helps HARQ and logical channel prioritization send urgent XR PDU sets sooner and avoid discard in uplink scheduling.
- Sidelink HARQ Feedback Aggregation Across Multiple SL Carriers
A single PSFCH carrier carries HARQ feedback for multiple sidelink carriers, simplifying resource mapping while improving SL efficiency and reliability.
- HARQ-ACK Codebook Timing for Variable-Duration Carrier Aggregation
HARQ-ACK bit mapping uses slot offset and counter fields to support variable-duration carrier aggregation and overlapping 5G transmissions.
- HARQ-ACK Codebook Filtering for Cell DTX and DRX Periods
By excluding resource allocations that overlap cell DTX periods, HARQ-ACK feedback cuts codebook size and energy use in DRX operation.
- Sub-Slot PUCCH Repetitions Across Boundaries for Reliable Coverage
Segmented sub-slot PUCCH repetitions cross sub-slot and slot boundaries, with collision handling that improves control-channel reliability and coverage.
- High-Speed Optical Receiver PAM-4 Encoding for FEC Alignment
PAM-4 encoding merges data and probability bits, reducing alignment complexity and extra interfaces for soft-decision FEC.
- DAPS Handover COUNT Sequencing to Prevent Keystream Reuse
Sequential SRB1 DL/UL COUNT incrementation across DAPS handover and fallback prevents keystream reuse while retaining keys and network performance.
- RRC Connection Triggers for NR Sidelink QoS Management
Predetermined RRC triggers let idle NR terminals react to sidelink link, mode, or sync changes so networks can allocate resources to meet QoS.
- Data-Plane Packet Redirection via Port Mirroring During Link Failures
Data-plane mirroring copies packets to a redundant port during link outages, reducing drops while routing tables update.
- PUCCH Frequency Hopping Patterns for Mixed-Capability UEs
Two PUCCH hopping patterns let NR and RedCap UEs complete uplink control transmission despite bandwidth limits in CBRA.
- Conditional PSCell Mobility Updates for Secondary-Node Cell Selection
Master-node updates to conditional PSCell commands help select suitable secondary-node cells and smooth UE mobility transitions.
- Feedback Codebook Rules for BWP and Cell Switching
Rules select pre-switch PDSCH feedback and govern retransmissions to clarify signaling across BWP and cell switching.
- Hyperdimensional Code Words for Interference-Based Wireless Computing
By treating wireless interference as a computing resource, this case enables distributed AI training and inference without decoding every code word.
- Sidelink Transmission Resource Indication for Reliable Scheduling
Linking sidelink control indications to resource-control signaling aligns terminal and control-node decisions, reducing scheduling errors and interference.
- NR-U Joint Acknowledgment Codebook for PDSCH Resource Conflicts
Overlapping uplink resources in NR-U are resolved by concatenating dynamic and SPS PDSCH acknowledgments into one joint codebook.
- Sidelink HARQ Feedback for LBT Failure Recovery
When LBT blocks a sidelink transmission in unlicensed spectrum, terminal HARQ feedback lets the network reschedule retransmission resources.
- Directional LBT Sensing for Beamformed 5G Channel Access
Beam width and spatial overlap determine sensing beams, CCA thresholds, and LBT types to improve 5G channel access reliability.
- HARQ-ACK Mapping for Semi-Persistent Downlink in Flexible TDD
Offset indicators map HARQ-ACK feedback to valid uplink resources, reducing latency and signaling overhead under flexible TDD.
- Single-DCI Scheduling of PDSCH/PUSCH Across Multiple Serving Cells
One DCI schedules PDSCH and PUSCH transmissions across serving cells, reducing signaling overhead and UE blind-decoding complexity.
- Multi-RNTI PUCCH Resource Selection for HARQ-ACK Multiplexing
Separate PUCCH configurations for different RNTI sets are combined to carry SPS HARQ-ACK information on a selected resource, reducing resource overhead.
- PUCCH Repetition Resource Allocation for Control Signal Reliability
Explicit resource sets help manage repeated PUCCH control information across slots when feedback overlaps or collides.
- Delayed SPS HARQ-ACK Reporting Around Invalid Symbols
When SPS PDSCH ACK symbols are invalid, the UE shifts HARQ-ACK to a later slot, preserving uplink opportunities and limiting retransmissions.
- Communication Apparatus Retransmission Timing for Lower Latency
Network-aware retransmission timing predicts message success and shortens connection delays while supporting reliable delivery.
- NR RRC Re-Establishment With Pre-Allocated Uplink Grants
Pre-allocating an uplink grant in the downlink re-establishment message avoids extra PRACH signaling, shortening completion time and saving UE power.
- Wireless HARQ Feedback Segmentation for Lower Latency
Segmenting HARQ feedback process identifiers across component carriers reduces message size, latency, and signaling overhead for wireless UEs.
- Network Congestion Control with Counter-Based Window Resizing
Packet acknowledgments accumulate congestion evidence before resizing the transmission window, reducing oscillations and computation.
- Priority-Based Sidelink Coordination to Reduce Transmission Interference
Priority-aware coordination helps sidelink UEs exchange resource guidance selectively, improving allocation efficiency while limiting transmission interference.
- 2D Error-Correcting Transition Encoding for Serial-Link Synchronization
A 2D parity table embeds transition constraints in error-correcting data, preserving serial-link synchronization without dedicated clock bits.
- Non-Geostationary Satellite Beacons for GPS-Free Data Transmission
Satellite beacons help resource-constrained devices transmit during visibility windows without GPS, reducing energy use and signal collisions.
- A-ZP-CSI-RS Mapping for Selective Multi-Slot PDSCH Rate Matching
Selective A-ZP-CSI-RS rate matching limits resource use to needed PDSCH slots instead of every scheduled slot.