Multi-Carrier Network Channel Scrambling and UE Assignment
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Solution Overview
Problem
Existing multi-carrier communication network implementations lack detailed definitions for how a user equipment (UE) is assigned component carriers, the relationships across multiple carriers, and the specifics of downlink/uplink component carrier sets, leading to inefficiencies and compatibility issues with legacy UEs.
Innovation Solution
The proposed system and method involve a UE receiving system information updates for component carriers, including paging messages, system information block types, and channel scrambling mechanisms, to facilitate efficient multi-carrier operation and compatibility with both legacy and advanced UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If carrier aggregation is implemented to support wider transmission bandwidths and higher data rates, then data transmission capacity is improved, but system complexity and compatibility management become more difficult
Solution Approach 1:
The system divides the wide transmission bandwidth into multiple component carriers, each operating independently with its own control and data channels. This segmentation allows the complex multi-carrier system to be managed as separate, simpler units while achieving aggregate high data rates through simultaneous transmission on multiple carriers.
Solution Approach 2:
The patent implements a universal control mechanism where a single base station controls multiple component carriers with different bandwidths and configurations. The system uses unified resource allocation and scheduling across all carriers, allowing legacy and advanced UEs to operate on the same infrastructure with different levels of carrier aggregation support.
2Productivity
If detailed definitions are provided for UE assignment and carrier relationships, then system operation efficiency is improved, but system complexity and implementation difficulty increase
Solution Approach 1:
The patent implements dynamic UE assignment mechanisms where UEs are dynamically allocated to specific component carriers based on channel conditions, UE capabilities, and network load. The carrier relationships and assignments are not static but adapt in real-time through base station scheduling and UE feedback, improving efficiency without requiring complex pre-planning.
Solution Approach 2:
The base station acts as an intermediary that manages the complex relationships between UEs and component carriers. It handles the detailed assignment logic, carrier configuration, and relationship management, shielding UE implementation from the full complexity while maintaining efficient operation through centralized control.
3Productivity
If multi-carrier operation mechanisms are established for advanced UEs, then data transmission rates are improved, but compatibility with legacy UEs deteriorates
Solution Approach 1:
The patent applies different quality levels of carrier operation to different UEs based on their capabilities. Advanced UEs receive optimized multi-carrier configurations with full feature sets, while legacy UEs receive simplified single-carrier or reduced-carrier configurations. Each UE receives locally optimized service quality appropriate to its capabilities, maintaining overall system compatibility.
Solution Approach 2:
The base station and network infrastructure are designed with universal multi-functionality to support both legacy and advanced UEs simultaneously. The same physical infrastructure carries multiple component carriers that can be selectively activated for different UE types, allowing the system to provide high-rate service to advanced UEs while maintaining basic service compatibility for legacy devices.
Data Source
AI summary
Methods, devices, and systems for multi-carrier network operation are disclosed. In one embodiment, a method of performing channel scrambling in a multi-carrier network, wherein the multi-carrier network includes a first component carrier (“CC”) and a second CC between a base station and a user equipment (“UE”) comprises receiving a Cell Radio Network Temporary Identifier (“C-RNTI”) and a cell identification (“ID”) for at least one of the first CC and the second CC; and using the RNTI and the cell ID to perform scrambling of information transmitted on at least one of the first CC and the second CC.