Uplink Control Information Multiplexing in Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting and receiving control information, particularly in scenarios where multiple control channels overlap in time, leading to difficulties in multiplexing and processing control information efficiently.
Innovation Solution
The proposed solution involves a method for multiplexing control information and data across overlapping channels by adjusting the starting transmission times and processing times of UL channels, allowing for flexible configuration of PUCCH and PUSCH resources to support simultaneous transmission, even when channels partially overlap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple control channels are transmitted simultaneously to improve system capacity, then productivity increases, but control information processing becomes complex and error-prone
Solution Approach 1:
The patent segments control information into different types (first control information and second control information) and transmits them through different channels (first control channel and second control channel) with different timing characteristics. This segmentation allows simultaneous transmission to improve capacity while maintaining manageable processing complexity through structured separation.
Solution Approach 2:
The patent applies preliminary action by transmitting the first control information before the second control information. The receiving device processes the first control information in advance, allowing it to be ready for multiplexing when the second control information arrives. This timing arrangement enables simultaneous channel usage without overwhelming the processing system.
2Productivity
If control channels are transmitted with overlapping time resources to increase spectral efficiency, then productivity improves, but transmission reliability decreases due to potential interference
Solution Approach 1:
The patent segments the control channels into a first control channel for first control information and a second control channel for second control information. By segmenting the time resources and assigning different channels to different control information types, the system achieves spectral efficiency through overlapping transmission while maintaining reliability through clear channel separation and dedicated processing paths.
Solution Approach 2:
The patent introduces an intermediary approach by having the receiving device process control information in a specific sequence (first control information before second control information) and use this processed information for subsequent multiplexing operations. This intermediary processing step ensures reliable reception and interpretation of control signals even when channels overlap in time.
3Productivity
If the starting transmission time of UL channels is adjusted to enable simultaneous transmission, then productivity increases, but device complexity increases due to flexible configuration requirements
Solution Approach 1:
The patent applies dynamics by allowing flexible adjustment of the starting transmission time for uplink channels. The system can dynamically configure when the first control channel and second control channel begin transmission, enabling simultaneous operation to improve productivity. This dynamic timing adjustment is managed through standardized protocols that balance flexibility with implementation simplicity.
Data Source
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AI summary
The disclosure relates to a wireless communication system. Particularly, the disclosure relates to a method including determining a first uplink control information (UCI) of a highest priority among a plurality of UCIs, the plurality of UCIs corresponding to a plurality of non-overlapped physical uplink control channel (PUCCH) resources within the same time period, determining a second UCI of a highest priority in a UCI set, based on a format of a PUCCH resource corresponding to the first UCI, and transmitting the first UCI and the second UCI, respectively in PUCCH resources corresponding to the first UCI and the second UCI, and an apparatus for the same.