Control Information Mapping on Data Channel Resources
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Solution Overview
Problem
Modern wireless networks face high signaling overhead due to the need for flexibility, which complicates control signaling in radio access networks, particularly in 5G systems, leading to inefficiencies in resource utilization.
Innovation Solution
The method involves configuring user equipment and radio nodes to transmit control information on data channel resources using a control channel configuration, allowing for efficient mapping and decoding of control information while minimizing overhead, utilizing processing and radio circuitry for transmission and reception, and employing specific parameters like code rates and modulation schemes to ensure reliability and error rate requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control information is transmitted on separate control channel resources, then reliability of control channel is improved, but signaling overhead increases
Solution Approach 1:
The patent combines control information and data information into a single data channel transmission. The control information is multiplexed with data on the same physical resources (PUSCH/PDSCH), eliminating the need for separate dedicated control channel resources. This merging approach reduces signaling overhead while maintaining reliability through proper resource allocation and modulation schemes.
Solution Approach 2:
The data channel is designed to serve dual purposes: transmitting both control information and data information. By making the data channel universal, the system eliminates the need for separate control channel infrastructure, thereby reducing overall signaling overhead while preserving control channel reliability through appropriate resource management.
2Adaptability or versatility
If flexibility is increased to serve diverse applications, then adaptability is improved, but signaling overhead increases
Solution Approach 1:
The patent implements dynamic resource allocation where the same data channel resources can be flexibly configured for different purposes based on traffic requirements. The system can dynamically adjust the proportion of resources allocated to control versus data information, providing adaptability for diverse applications without requiring separate static control channel configurations for each scenario.
Solution Approach 2:
The system changes transmission parameters (modulation schemes, coding rates, resource allocation) on the data channel to adapt to different application requirements. By modifying these parameters dynamically, the system achieves high flexibility for serving diverse use cases while avoiding the overhead of establishing separate control channels for each parameter set.
3Productivity
If control information is mapped to data channel resources, then resource utilization is improved, but complexity of transmission increases
Solution Approach 1:
The patent segments control information and data information into separate code blocks or transport blocks that are then multiplexed onto the same physical data channel resources. This segmentation allows for independent encoding and processing of control and data portions, simplifying the transmission complexity while maximizing resource utilization by sharing the same physical medium.
Data Source
AI summary
There is disclosed a method of operating a user equipment in a radio access network, the user equipment being configured with a control channel configuration pertaining to transmission of control information on a control channel. The user equipment further being configured with data channel resources for transmission of data on a data channel. The method includes transmitting control information on data channel resources based on the control channel configuration. The disclosure also pertains to related devices and methods.