Resource Block-Specific Control Signaling in LTE Systems
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Solution Overview
Problem
Current wireless communication systems, particularly those based on the 3GPP LTE standard, face inefficiencies in transmitting resource block-specific control information, leading to increased overhead and reduced capacity due to the use of common/shared control channels, which embed redundant information for multiple users, especially in MIMO systems.
Innovation Solution
A system and method that embeds resource block-specific control channels within scheduled resource blocks, allowing targeted users to access specific control information without the need for extensive overhead bits in common/shared control channels, thereby reducing data transmission overhead and enabling more users to be serviced within the same bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If common/shared control channels are used to transmit resource block-specific control information, then control information can be provided to multiple users, but data transmission overhead increases and capacity decreases
Solution Approach 1:
The patent segments control information transmission by embedding resource block-specific control channels directly within individual resource blocks allocated to specific users. This divides the control information delivery into user-specific segments rather than using a single common channel for all users, thereby reducing overall overhead while maintaining multi-user capability
Solution Approach 2:
The patent extracts resource block-specific control information from the common/shared control channel and places it directly within the scheduled resource blocks. This extraction removes redundant control information from the common channel, reducing data overhead while preserving the ability to deliver control information to multiple users
2Adaptability or versatility
If common/shared control channels embed redundant information for multiple users, then control information can be provided to multiple users, but device complexity and processing overhead increase
Solution Approach 1:
The patent segments control information into user-specific portions embedded within individual resource blocks. Each user receives only their relevant control information directly in their allocated resource block, eliminating the need to process redundant information for multiple users and reducing device complexity
Solution Approach 2:
Each user's resource block contains their own specific control information, allowing users to self-configure their reception parameters directly from their allocated resource block without requiring complex centralized control channel processing. This self-service approach reduces overall system complexity
Data Source
AI summary
A system and method is disclosed for resource block-specific control signaling in a communication system. Communication data is transmitted using a transmission channel comprising a plurality of resource blocks defined by allocating time-frequency slots in a transmission resource. Resource block control information is transmitted in a “feed-forward” manner to a user end (UE) or group of UEs using channels physically mapped into scheduled resource blocks (RBs) for that user or group of users. Embodiments of the invention provide an RB-specific control channel that comprises RB control elements that are embedded within scheduled resource blocks. The invention, therefore, reduces the amount of control information that must be transmitted by common or shared control channels.