Multi-PDSCH Transmission With Quasi-Co-Located SSB Beams
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Solution Overview
Problem
Existing wireless systems face inefficiencies in processing multiple Physical Downlink Shared Channel (PDSCH) transmissions due to the need for individual determination of large-scale properties for each wireless signal, leading to suboptimal data exchange and resource utilization.
Innovation Solution
The implementation of quasi co-location determination for antenna ports, allowing UE devices to process wireless signals based on shared large-scale properties, such as average delay, delay spread, Doppler shift, and average gain, thereby facilitating efficient and power-saving data processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual determination of large-scale properties is performed for each wireless signal, then measurement precision is improved, but processing time and device complexity increase
Solution Approach 1:
The patent merges the determination of large-scale properties across multiple antenna ports by establishing quasi-co-location relationships. Instead of determining properties individually for each antenna port, the system combines measurements from multiple ports and applies the determined properties across all quasi-co-located ports, thereby reducing processing time while maintaining measurement accuracy.
Solution Approach 2:
The patent implements preliminary determination of large-scale properties for a reference antenna port. Once determined, these properties are then applied to other antenna ports that are quasi-co-located with the reference port, eliminating the need to repeat the determination process for each port and significantly reducing overall processing time.
2Measurement precision
If individual determination of large-scale properties is performed for each wireless signal, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent merges the determination of large-scale properties across multiple antenna ports by establishing quasi-co-location relationships. Instead of determining properties individually for each antenna port, the system combines measurements from multiple ports and applies the determined properties across all quasi-co-located ports, thereby reducing processing time while maintaining measurement accuracy.
Solution Approach 2:
The patent creates a universal determination process where large-scale properties determined for one reference antenna port can be universally applied to multiple other antenna ports through quasi-co-location relationships. This multi-functional approach allows a single determination process to serve multiple purposes across different antenna ports, reducing overall device complexity.
3Productivity
If quasi co-location determination is implemented for multiple antenna ports, then processing efficiency is improved, but measurement precision may deteriorate
Solution Approach 1:
The patent applies local quality by allowing different quasi-co-location configurations for different groups of antenna ports. Each reference antenna port can have its own set of quasi-co-located ports with specific large-scale properties, enabling localized optimization where each group maintains measurement precision appropriate to its specific characteristics while still benefiting from the efficiency of quasi-co-location determination.
Data Source
AI summary
In an example method, a user equipment (UE) device receives a plurality of Synchronization Signal Block (SSB) beams transmitted by base stations (BSes) during discovery burst transmission windows (DBTWs). For each of the SSB beams, the UE device determines an index value of the SSB beam (lSSB) within a respective one of the DBTWs, and determines a value Z=lSSB mod NSSDQCL, where NSSBQCL represents a maximum allowable number of SSB beams transmitted by each of the BSes during a single DBTW. The UE device determines whether two or more of the SSB beams are quasi co-located based on the values Z for the SSB beams, and processes wireless signals received from the BSes based on the determination.