UE Data Rate Decoding for Multi-Carrier Transport Blocks

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently processing and decoding transport blocks, particularly when multiple repetitions are received across multiple component carriers, leading to inadequate data rate summation and potential failure in decoding all information bits.

Innovation Solution

The proposed solution involves a user equipment (UE) using improved data rate physical downlink shared channel (PDSCH) decoding for transport blocks. This includes monitoring and decoding multiple repetitions of transport blocks scheduled across different transmission occasions and component carriers, based on a data rate limit and number of transmission occasions, to ensure accurate decoding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple repetitions of transport blocks are received across multiple component carriers, then the data processing capability is improved, but the complexity of decoding and data rate summation increases

Engineering Contradiction:
Improvedata processing capabilityVSAvoiddecoding complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the decoding process by introducing separate data rate determination modules for each component carrier. Each repetition of the transport block is decoded independently with its own data rate calculation, rather than attempting to sum data rates across all repetitions simultaneously. This segmentation reduces the complexity of the overall decoding process while maintaining the ability to process multiple repetitions across multiple component carriers.

Inventive Principle:
Principle #1Segmentation

2Productivity

If data rate summation is performed across multiple component carriers, then the total data rate is improved, but the accuracy of decoding individual transport blocks deteriorates

Engineering Contradiction:
Improvetotal data rateVSAvoiddecoding accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent applies local quality by determining data rates locally for each component carrier and each repetition individually, rather than applying a global data rate summation approach. Each transport block repetition is decoded with accuracy appropriate to its specific component carrier conditions, ensuring optimal decoding performance for each local instance while still achieving overall high data throughput across the aggregated multiple carriers.

Inventive Principle:
Principle #3Local quality

3Reliability

If all information bits are decoded across multiple repetitions, then the completeness of data reception is improved, but the power consumption increases

Engineering Contradiction:
Improvedata reception completenessVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements partial action by allowing the system to achieve complete data reception through selective processing of repetitions. Rather than requiring all repetitions to be fully processed, the system can achieve complete decoding by processing a sufficient subset of repetitions across multiple component carriers, thereby reducing the total computational effort and power consumption while still ensuring all information bits are successfully received and decoded.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS12238040B2Data rate decoding for transport blocks
Publication Date: 2025.02.25 QUALCOMM INC
  • US12238040B2 patent drawing
  • US12238040B2 patent drawing
  • US12238040B2 patent drawing

AI summary

In a wireless communications system, a user equipment (UE) may receive, from a network device, a downlink control message that schedules a first and second repetition of a transport block for a downlink shared channel in a first component carrier of multiple component carriers, the first and second repetitions scheduled in a first and second transmission occasion associated with the downlink shared channel. The UE may monitor for the repetitions in the respective transmission occasions, and the UE may decode the transport block based on a number of transmission occasions associated with the downlink shared channel in the component carrier and a data rate limit across the multiple component carriers including the first component carrier.