CRC Attachment for Rate-Splitting Common and Private Blocks
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately generating and attaching cyclic redundancy check (CRC) parity bits for common and private transport blocks in rate splitting transmissions, leading to potential errors and reduced accuracy in message transmission.
Innovation Solution
A transmitting device generates CRC parity bits for both common and private portions of messages and attaches them to corresponding code or transport blocks, using polynomials tailored for rate splitting transmissions to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If CRC parity bits are generated for common and private transport blocks in rate splitting transmissions, then transmission accuracy is improved, but system complexity increases
Solution Approach 1:
The patent segments the message into common and private portions, and separately generates CRC parity bits for each portion. This segmentation approach allows the system to handle different error protection requirements for common information (shared by multiple UEs) and private information (specific to individual UEs), thereby improving transmission accuracy while managing complexity through modular processing
Solution Approach 2:
The patent performs preliminary generation of CRC parity bits for both common and private transport blocks before the actual data transmission. By pre-calculating and attaching the appropriate CRC parity bits to each segment, the system ensures error detection capability is established in advance, improving transmission accuracy without adding complexity during the transmission phase
2Reliability
If CRC parity bits are attached to code blocks, then error detection capability is improved, but processing time increases
Solution Approach 1:
The patent attaches CRC parity bits to code blocks during the preliminary processing stage before transmission. By performing this attachment operation in advance rather than in real-time during transmission or reception, the system ensures error detection capability is built into the transmitted signal, while minimizing processing time impact on the critical transmission path
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. A device may perform rate splitting on a first message for a first user equipment (UE) and a second message for a second UE, the first message comprising a first private portion and a first common portion, and the second message comprising a second private portion and a second common portion. The device may combine the first common portion and the second common portion into a third common portion. The device may generate cyclic redundancy check (CRC) parity bits associated with at least one of the first private portion and the third common portion and attach the generated CRC parity bits to one or more blocks associated with the transmission. The device may transmit the first private portion and the third common portion to the first UE, and the second private portion and the third common portion to the second UE.