Uplink UCI Multiplexing Across Data Blocks to Avoid Resource Overlap
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Solution Overview
Problem
When the time domain resource of an uplink control channel overlaps with the time domain resource of an uplink data channel, discarding uplink control information (UCI) affects the reliability of downlink data transmission.
Innovation Solution
Transmitting UCI through an uplink data channel using multiple data blocks, each modulated with different modulation and coding schemes, ensuring non-overlapping time-frequency resources and prioritizing UCI transmission to avoid resource conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UCI is transmitted through the uplink data channel, then reliability of downlink data transmission is improved, but UCI occupies time-frequency resources of the uplink data channel which reduces resources available for data block transmission
Solution Approach 1:
The patent limits the quantity of bits occupied by UCI to be less than A×B, where A≥0 and B is the quantity of bits corresponding to at least one data block. This parameter constraint ensures that UCI transmission does not excessively consume uplink data channel resources, maintaining at least one data block's worth of resources for data transmission while still conveying control information reliably
Solution Approach 2:
The patent transmits only a partial amount of UCI bits (less than A×B) through the uplink data channel rather than all necessary control information. This partial transmission approach prevents UCI from occupying all resources and causing data block transmission failure, while still providing sufficient control information to maintain downlink transmission reliability
2Loss of information
If UCI occupies a large quantity of bits in the uplink data channel, then more control information can be transmitted, but data block transmission may fail due to resource exhaustion
Solution Approach 1:
The patent establishes a parameter constraint that UCI bit quantity must be less than A×B, preventing UCI from consuming excessive uplink data channel resources. This ensures that sufficient resources remain for data block transmission while still conveying necessary control information
3Device complexity
If single data block is used for transmitting service data, then device complexity is reduced, but quality of service cannot be ensured
Solution Approach 1:
The patent divides service data into multiple data blocks (at least two) for transmission through the uplink data channel. This segmentation allows different data blocks to be modulated with different MCS schemes, enabling differentiated quality of service for different services while maintaining manageable system complexity through standardized multi-block handling procedures
Data Source
AI summary
Embodiments of this application disclose an information transmission method and an apparatus therefor. The method includes: A terminal device sends uplink control information UCI to a network device through an uplink data channel. The uplink data channel carries N data blocks. The N data blocks include a first data block and a second data block. N is a positive integer greater than or equal to 2. The first data block is modulated based on a first modulation and coding scheme MCS, and the second data block is modulated based on a second MCS. Implementation of embodiments of this application helps ensure reliability of downlink data transmission.