Multi-Carrier Data Allocation Using Priority-Based Bitmap Signaling
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Solution Overview
Problem
In multi-carrier communication systems, the re-arrangement of protocol data units (PDUs) often requires inserting sequence numbers, leading to a waste of wireless resources.
Innovation Solution
The method involves determining and transmitting priority information for multi-carriers, allowing data to be allocated and received based on priority, thereby eliminating the need for sequence numbers in all PDUs and optimizing resource allocation using bitmaps in downlink map messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sequence numbers are inserted into all PDUs for re-arrangement, then the non-arrangement phenomenon is solved, but wireless resources are wasted
Solution Approach 1:
The patent segments the data transmission process by separating the priority indication mechanism from the data payload. Priority information is transmitted separately through DCI formats, allowing the receiver to re-arrange data segments without requiring sequence numbers in every PDU, thus reducing overhead while maintaining arrangement capability
Solution Approach 2:
The patent applies preliminary action by transmitting priority information for multiple carriers before data transmission through downlink map information. This allows the terminal to pre-configure the re-arrangement logic, eliminating the need for sequence numbers during actual data transmission and reducing wireless resource consumption
2Productivity
If priority information is transmitted to enable efficient data allocation, then resource utilization improves, but signaling overhead increases
Solution Approach 1:
The patent makes the downlink map information structure universal by incorporating multiple functions: resource allocation indication, priority information transmission, and data scheduling. This multi-functionality allows priority information to be conveyed within existing signaling frameworks without requiring separate dedicated signaling channels, thus minimizing additional overhead
Solution Approach 2:
The patent utilizes parameter changes by encoding priority information within existing DCI format parameters and bitmap fields. By repurposing and reconfiguring existing signaling parameters rather than introducing new signaling elements, the system conveys priority information efficiently without significantly increasing overall signaling overhead
Data Source
AI summary
An apparatus for transmitting data in a communication system supporting multi-carriers determines the priority of the multi-carriers and transmits information on the priority to a terminal. Thereafter, the transmitting apparatus allocates data to the multi-carriers in accordance with the priority and transmits the allocated data to a data receiving apparatus, and the data receiving apparatus receives data to be transmitted from the data transmitting apparatus in accordance with information on the priority.