Uplink Control Information Transmission via PUSCH Mapping
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Solution Overview
Problem
Conventional mobile communication systems face challenges in transmitting data using multiple PUSCHs and PUCCHs in the same sub-frame, leading to higher Peak to Average Power Ratio (PAPR), which affects transmission power efficiency in LTE-A systems employing multiple carrier components.
Innovation Solution
A mobile communication system where a base station allocates a persistent first physical uplink control channel and a dynamic second physical uplink control channel, allowing simultaneous transmission of the physical uplink shared channel and the second control channel in the same sub-frame, reducing transmission power by mapping control information onto the physical uplink shared channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple PUSCHs and PUCCHs are transmitted simultaneously in the same sub-frame, then data transmission capacity is improved, but Peak to Average Power Ratio (PAPR) increases
Solution Approach 1:
The patent combines multiple control channels (first PUCCH and second PUCCH) into a single PUSCH for transmission. The control information from both PUCCHs is mapped onto the PUSCH resources, allowing simultaneous transmission of data and control information while reducing the number of separate transmissions and lowering PAPR.
Solution Approach 2:
The PUSCH is designed to serve multiple functions: it transmits both uplink data and control information (from both first and second PUCCHs). This multi-functionality eliminates the need for separate dedicated control channel transmissions, improving power efficiency while maintaining transmission capacity.
2Adaptability or versatility
If multiple carrier components are used for communication, then frequency band utilization is improved, but transmission power consumption increases
Solution Approach 1:
The patent merges control information from multiple carrier components into a single PUSCH transmission. By consolidating control channels from different carrier components into one shared channel, the system maintains multi-carrier flexibility while reducing overall transmission power consumption.
3Reliability
If control information is transmitted on separate control channels, then control reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple control channels into a single PUSCH while maintaining the integrity and reliability of control information transmission. The control information from different sources is mapped onto the PUSCH resources, reducing channel management complexity while preserving control reliability.
Solution Approach 2:
The PUSCH serves as a universal channel that can carry both data and control information from multiple sources. This multi-functionality simplifies the channel structure and reduces device complexity while maintaining the ability to transmit control information reliably.
Data Source
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AI summary
The present invention relates to a mobile station apparatus configured to transmit uplink control information to a base station apparatus, a communication method for a mobile station apparatus configured to transmit uplink control information to a base station apparatus, and an integrated circuit to be mounted on a mobile station apparatus configured to transmit uplink control information to a base station apparatus. In a case that the uplink control information consists of channel state information and HARQ control information, first and second transmission processes are performed based on information included in an RRC signaling received from the base station apparatus, wherein the first transmission process takes place for the simultaneous transmission in a sub-frame of the channel state information on the physical uplink shared channel and of the HARQ control informationis on the physical uplink control channel, and the second transmission process takes place for transmitting in a sub-frame all the uplink control information on the physical uplink shared channel.