LTE Carrier Aggregation for MBMS and Unicast Services
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Solution Overview
Problem
The complexity of providing unicast and broadcast services using multiple component carriers in LTE systems increases design complexity and signal interference, as existing technologies struggle to efficiently manage and aggregate multiple carriers for multimedia broadcast/multicast services (MBMS) and unicast services.
Innovation Solution
The implementation of communication devices capable of receiving and processing MBMS and unicast services on multiple carriers, where MBMS control information is broadcasted on a Broadcast Control Channel (BCCH) and Multicast Control Channel (MCCH), allowing devices to configure and aggregate component carriers for seamless data retrieval, reducing design complexity and signal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multiple component carriers are aggregated to transmit data between eNBs and UEs, then data transmission rate is improved, but device complexity increases
Solution Approach 1:
The patent segments the carrier aggregation configuration into separate unicast and broadcast service configurations. Each service type has its own set of component carriers and configuration parameters, allowing independent management and reducing the complexity of handling multiple carriers for a single service type.
Solution Approach 2:
The patent creates a unified carrier aggregation configuration structure that serves both unicast and broadcast services. The common configuration includes shared parameters like cell identifiers and bandwidth parts, while service-specific configurations handle the differences, achieving multi-functionality without proportionally increasing complexity.
2Quantity of substance
If multiple component carriers are used for MBMS and unicast services, then bandwidth is improved, but signal interference increases
Solution Approach 1:
The patent segments the frequency resources by separating unicast and broadcast services into different carrier configurations. This segmentation allows for dedicated resource allocation and reduces interference between service types while maintaining overall bandwidth efficiency.
Solution Approach 2:
The patent applies different configuration parameters and resource allocation strategies tailored to the specific requirements of unicast and broadcast services. Each service type receives localized optimization in terms of carrier selection, bandwidth allocation, and interference management, improving overall system performance.
3Productivity
If carrier aggregation is implemented for multiple services, then data transmission capacity is improved, but configuration complexity increases
Solution Approach 1:
The patent implements a universal carrier aggregation configuration framework that handles both unicast and broadcast services through a common structure. The framework includes unified parameters for cell identifiers, bandwidth parts, and resource allocation, reducing configuration complexity while maintaining high data transmission capacity.
Solution Approach 2:
The patent performs preliminary configuration of carrier aggregation parameters during system setup, establishing the framework for both service types in advance. This preliminary action includes pre-configuring common parameters and establishing resource allocation patterns, which simplifies subsequent service-specific configurations and reduces overall configuration complexity.
Data Source
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AI summary
Communication devices and methods thereof. The communication device comprises a communication module and a control module. The communication module is configured to receive point-to-multipoint data and point-to-point data on a first carrier, and receives a configuration of a second carrier after configuring the first carrier. The control module, coupled to the communication module, configures the second carrier according to the received configuration.