Semi-Static Component Carrier Allocation Signaling
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting large amounts of data, such as video casts, over a short period, due to limitations in data transfer rates, particularly in LTE-A networks where multiple user equipment (UE) applications require simultaneous data packet transmission.
Innovation Solution
The implementation of a semi-static configuration for assigning multiple component carriers (CCs) for user data and control data transmission between access devices and UEs, using separate or joint coding schemes, with signaling protocols like RRC or MAC to manage CC allocation and reconfiguration, optimizing bandwidth usage and reducing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple component carriers are allocated dynamically to meet high data transmission demands, then data transmission rate is improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent implements dynamic component carrier allocation where the network can adjust the number and configuration of CCs based on real-time traffic conditions. The semi-static configuration allows the system to adapt between static and dynamic modes, enabling high data transmission rates when needed while controlling signaling overhead through periodic reconfiguration rather than continuous signaling.
Solution Approach 2:
The patent establishes semi-static component carrier configurations in advance through RRC signaling, preparing the system for high data transmission demands before they occur. This preliminary configuration reduces the need for frequent dynamic signaling adjustments, thereby lowering signaling overhead while maintaining the capability to meet peak data transmission requirements.
2Productivity
If component carriers are frequently reconfigured to optimize bandwidth usage, then data transfer efficiency is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic reconfiguration of component carriers rather than continuous or frequent adjustments. The semi-static configuration maintains component carrier assignments for extended periods, reducing the frequency of reconfiguration events. This periodic approach optimizes data transfer efficiency when necessary while significantly reducing power consumption associated with frequent configuration changes and signal processing.
3Reliability
If separate coding schemes are used for user data and control data on different component carriers, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies separate coding schemes for user data and control data transmitted on different component carriers. This segmentation allows each data type to be optimized independently - control data uses robust coding for reliability, while user data uses efficient coding for throughput. The patent manages the resulting complexity through standardized implementation frameworks and configuration management.
Data Source
AI summary
A method for configuring at least one component carrier (CC) for a physical downlink shared channel (PDSCH). The method includes receiving a CC configuration using a signaling protocol, wherein the CC is assigned using a semi-static configuration. Also included is a user equipment (UE) comprising a processor configured to receive a CC configuration for at least one CC for a PDSCH using a signaling protocol, wherein the CC is assigned using a semi-static configuration. Also included is an access node comprising a processor configured to transmit a CC configuration for at least one CC for a PDSCH using a signaling protocol, wherein the CC is assigned using a semi-static configuration.