Composite Control Channel Assignment for Flexible UE Resource Decoding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face inefficiencies in resource allocation and decoding processes due to the need to address multiple resource blocks within a transmission time interval (TTI), particularly when TTI is segmented into sub-frames, leading to excessive capacity and challenges in assigning resources based on varying packet sizes for different user equipment (UE).
Innovation Solution
The implementation of a composite control channel with multiple control channel elements, each containing radio resource assignment information, allows for dynamic allocation and combination of control channel elements based on channel conditions and user-specific needs, using type indicators and bit sequences to determine the number and type of control channel elements, enabling efficient resource management and decoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple resource blocks are addressed within a TTI using traditional control channel signaling, then resource allocation flexibility is improved, but decoding complexity and processing time increase
Solution Approach 1:
The control channel signaling is segmented into multiple control channel elements (CCEs), where each CCE contains a portion of the resource assignment information. The UE receives multiple CCEs and combines them to reconstruct the complete resource assignment, which reduces the complexity of processing a single large control message while maintaining flexible resource allocation across multiple resource blocks.
Solution Approach 2:
The patent introduces a new dimension to resource assignment by embedding type indicators and bit sequences within the control channel elements that encode information about the number and type of CCEs to be combined. This dimensional expansion allows the system to convey complex resource allocation instructions efficiently, reducing the overall processing burden on the UE.
2Manufacturing precision
If TTI is segmented into sub-frames for finer resource control, then resource allocation precision is improved, but the number of control signals and processing overhead increase
Solution Approach 1:
Multiple control channel elements corresponding to different sub-frames are merged into a single composite control message that can be received and processed together. The type indicators and bit sequences enable the UE to understand how to combine these CCEs efficiently, reducing the overhead of transmitting separate control signals for each sub-frame while maintaining precise resource allocation control.
Solution Approach 2:
The control channel element structure is designed to be universal and multi-functional, where the same CCE format and combining mechanism can handle resource assignments across multiple sub-frames with different configurations. This universality reduces the need for multiple specialized control signal formats, thereby reducing overall control signal quantity while maintaining allocation precision.
3Productivity
If control channel elements are dynamically allocated based on user-specific needs, then resource allocation efficiency is improved, but the complexity of determining CCE configuration increases
Solution Approach 1:
The UE autonomously determines the configuration of control channel elements by decoding type indicators and bit sequences embedded within the received CCEs. This self-service mechanism allows the system to dynamically allocate CCEs based on user-specific needs without requiring complex external configuration management, as each UE independently interprets the control information tailored to its requirements.
Solution Approach 2:
The patent employs parameter changes within the control channel element structure, where type indicators and bit sequences dynamically encode information about CCE configuration. By changing these parameters based on channel conditions and user needs, the system achieves efficient resource allocation while the UE determines configuration through straightforward parameter interpretation rather than complex analysis.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A method in a wireless communication device comprises receiving a composite control channel including at least two radio resource assignment control channel elements and determining a number of types of control channel elements constituting the composite control channel.