Multi-CC Downlink Control Information Scheduling
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting and receiving downlink control information on multiple component carriers, leading to increased signaling overhead and blind detection complexity, especially as the number of simultaneously scheduled carriers increases.
Innovation Solution
A method involving blind decoding of multi-CC downlink control information in a specific search space to schedule multiple component carriers, allowing for efficient transmission and reception of downlink data channels or uplink control channels, with options for fallback and flexible field utilization to reduce complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If downlink control information schedules multiple component carriers separately, then each carrier can be controlled independently, but signaling overhead increases and blind detection complexity increases
Solution Approach 1:
The patent combines multiple component carrier scheduling into a single downlink control information message. Instead of transmitting separate control information for each component carrier, the system merges the scheduling of multiple component carriers into one unified control message, thereby reducing signaling overhead and blind detection complexity while maintaining the ability to independently control each carrier through specific field configurations
2Adaptability or versatility
If downlink control information schedules multiple component carriers separately, then each carrier can be controlled independently, but signaling overhead increases
Solution Approach 1:
The patent merges multiple component carrier scheduling information into a single downlink control information message. By consolidating what would otherwise be multiple separate control messages into one unified message, the system significantly reduces signaling overhead while preserving the ability to independently configure and control each component carrier through dedicated fields within the combined message structure
3Productivity
If the number of simultaneously scheduled carriers increases, then data throughput increases, but blind detection complexity increases
Solution Approach 1:
The patent addresses the issue by merging the scheduling of multiple component carriers into a single control message structure. This allows the system to schedule multiple carriers simultaneously to increase data throughput while avoiding the exponential increase in blind detection complexity that would result from treating each carrier separately, as the unified message structure enables efficient joint decoding
Data Source
AI summary
A method for receiving a signal or transmitting a signal on a plurality of component carriers (CCs) in a wireless communication system, according to an embodiment of the present invention, is performed by means of a terminal and comprises the steps of: in order to receive multiple CC downlink control information scheduling one or more CCs, blind decoding the multiple CC downlink control information in a search space on a particular CC; and, on the basis of the received multiple CC downlink control information, transmitting an uplink control or data channel or receiving a downlink data channel on one or more of the CCs, wherein the received multiple CC downlink control information can comprise transmission mode (TM) dependent multiple CC downlink control information or fallback multiple CC downlink control information.