Pilot Signal Allocation TRIZ Cases
- Multi-Slot SRS Resource Configuration for Coverage and Interference Control
Configurable SRS repetition across slots uses frequency hopping and orthogonal sequences to improve coverage while limiting interference.
- LTE-NR Reference Signal Coexistence With Dynamic DMRS Placement
When LTE CRS collides with added NR DMRS, dynamic symbol relocation preserves channel estimation and supports full-slot NR PDSCH throughput.
- LTE Uplink TTI Bundling With Adaptive Activation Criteria
Undefined triggering and WTRU behavior limit LTE TTI bundling; CQI, buffer, and acknowledgment feedback enable controlled uplink repetition.
- Configurable Correlator Bank for Fast DSSS Detection
Segmented correlators and phase transformations speed signal-arrival detection while the same bank supports timing, despreading, and frequency estimation.
- User Equipment PRS Measurement Timing for Gapless Positioning
Misaligned network and UE timing can delay PRS reporting; adaptive periodicity enables gapless measurements alongside other operations.
- UE Positioning Capability Updates for Adaptive Measurement Accuracy
Changing UE capabilities can make session measurements stale; updates let the location server refresh assistance data and positioning requests.
- Multi-TRP PUSCH Repetition for Reliable Uplink Reception
Scheduled PUSCH repetitions and TCI-state selection coordinate multi-TRP reception to improve uplink reliability in non-ideal backhaul scenarios.
- Communication Signal CP Length Allocation for Demodulation
Different CP lengths for reference and data symbols help limit inter-symbol interference while preserving transmission efficiency and demodulation performance.
- Uplink Reference Signal Grouping for Reduced-TTI Capacity
Reduced TTIs can limit uplink capacity, so terminals use higher-layer signaling and control information to select reference signal groups.
- Location-Hopped SRS Subbands for Complete Frequency Coverage
A location hopping parameter shifts SRS subbands across transmission occasions, extending partial sounding across the full frequency range with less interference.
- Unlicensed Sidelink Guard-Duration Timing for Reliable COT Sharing
Adjusting the initiating UE’s transmission gap gives the responding UE time for shortened channel access while limiting competing channel takeover.
- Low-PAPR Data and Reference Signal Filtering for 5G Uplink
High PAPR in DFT-s-OFDM uplinks can limit coverage; paired data and reference-signal filters align waveform behavior for precise channel estimation.
- Uplink DMRS Configuration to Reduce Multi-User Port Leakage
DMRS port leakage in asynchronous multi-user uplinks is reduced through selective reference signals and configured decoding.