UE System Information Decoding via Known Bits and Joint Processing
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Solution Overview
Problem
Next-generation wireless communication systems face challenges with high latency and increased power consumption due to decoding complexities and channel estimation issues, particularly during handovers in low signal-to-noise ratio environments, especially with the growth of payload size and higher frequency operations.
Innovation Solution
Implementing efficient physical broadcast channel decoding methods in user equipment (UE) devices, such as using known bits for decoding and joint decoding across multiple master information blocks, and facilitating channel estimation during handovers by transmitting reference signals and configuration information, thereby reducing decoding complexity and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If payload size is increased to support expanded connectivity in next-generation NR, then communication capacity is improved, but decoding complexity increases causing latency issues and higher power consumption
Solution Approach 1:
The patent applies preliminary action by pre-synchronizing UEs to the physical broadcast channel and pre-decoding master information blocks before actual data transmission. This allows the UE to have advance knowledge of broadcast information, reducing the need for complex real-time decoding of large payloads and thereby reducing latency while maintaining expanded connectivity capacity
2Measurement precision
If continuous decoding of master information blocks is performed for synchronization, then synchronization accuracy is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic action by having the UE decode master information blocks at specific periodic intervals rather than continuously. The UE synchronizes to the physical broadcast channel periodically and decodes master information blocks only when needed for maintaining synchronization, thereby reducing power consumption while preserving synchronization accuracy through scheduled decoding operations
3Reliability
If channel estimation is performed during handover in low signal-to-noise ratio environments, then handover reliability is improved, but latency increases
Solution Approach 1:
The patent applies preliminary action by performing channel estimation using pre-acquired reference signals and previously decoded master information blocks before the actual handover execution. This preliminary channel estimation allows the UE to prepare handover parameters in advance, reducing the time required during actual handover while maintaining reliability in low signal-to-noise ratio environments through advance channel characterization
Data Source
AI summary
Wireless communications systems and methods related to system information communications and decoding are provided. In one embodiment, a wireless communication device receives one or more known bits. The wireless communication device receives a first encoded information block. The wireless communication device decodes the first encoded information block to generate a first information block based on the one or more known bits. In one embodiment, a wireless communication device receives a first encoded information block including a first bit pattern. The wireless communication device receives a second encoded information block including a second bit pattern. The wireless communication device jointly decodes the first encoded information block and the second encoded information block based on an assumption that a difference between the first bit pattern and the second bit pattern is within a subset of a plurality of bit-change patterns.