Selective MBMS Reception on Component Carriers
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Solution Overview
Problem
Mobile communications devices capable of carrier aggregation waste power by receiving duplicate multimedia broadcast and multicast services (MBMS) on multiple component carriers when the same content is transmitted, as they are currently required to receive MBMS data from all configured carriers.
Innovation Solution
A mobile communications device with a wireless module and controller module that selectively receives MBMS content only from a single component carrier providing the same content, reducing unnecessary power consumption by turning off receivers on other carriers transmitting the same service, and displays MBMS service IDs and names for user selection and real-time updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mobile communications device receives MBMS data on all configured component carriers, then the device ensures complete reception of broadcast services, but the device consumes excessive power due to duplicate content reception
Solution Approach 1:
The patent extracts the essential function of MBMS reception by identifying and selecting only one component carrier that provides the necessary broadcast content, rather than receiving from all configured carriers. The controller determines which carrier(s) actually transmit the MBMS data and configures the receiver accordingly, removing the redundant reception functions that cause power waste.
Solution Approach 2:
The patent implements dynamic configuration of the receiver based on real-time detection of MBMS data transmission across component carriers. The controller continuously monitors which carriers are actively transmitting MBMS content and adjusts the receiver configuration dynamically, enabling the device to adapt its reception behavior to current network conditions and eliminate unnecessary power consumption.
2Adaptability or versatility
If a mobile communications device is configured to receive on multiple component carriers, then the device supports carrier aggregation for increased bandwidth, but the device cannot selectively receive MBMS on individual carriers
Solution Approach 1:
The patent segments the MBMS reception function by component carrier, allowing the controller to independently manage reception on each carrier. The controller receives MBMS control information from the network, identifies which specific carriers are transmitting the service, and then segments the reception task accordingly, configuring the receiver to monitor only the relevant carriers rather than all configured carriers.
Solution Approach 2:
The patent implements a feedback mechanism where the controller receives MBMS control information from the service network, processes this information to identify active MBMS transmissions on specific carriers, and uses this feedback to configure the receiver accordingly. This closed-loop approach enables selective reception based on actual network conditions and service availability.
Data Source
AI summary
A mobile communications device with a wireless module and a controller module is provided. The wireless module performs wireless reception from a service network on a plurality of component carriers configured by the service network. The controller module selects a first component carrier from the plurality of component carriers providing the same multimedia broadcast and multicast services (MBMS) content and controls the wireless module to receive the MBMS content on the first component carrier.