Multicarrier MBMS Reception in Legacy Communication Devices
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Solution Overview
Problem
Legacy communication devices compliant with older 3GPP releases can only acquire data services from a single carrier, limiting their ability to receive multimedia broadcast/multicast services (MBMS) from MBMS only component carriers, whereas newer devices can support multiple carriers, but there is a need for communication devices to effectively utilize MBMS supportability of base stations.
Innovation Solution
The communication device includes a control module and a communication module that configures the reception of data services on multiple carriers, determines whether a carrier carries point-to-multipoint data based on received information, and processes MBMS data for playback, allowing it to receive and process MBMS data from multiple carriers while discarding unnecessary geographical information and service provider identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If legacy UEs compliant with older 3GPP releases are used, then device complexity is reduced, but the ability to receive MBMS services from multiple carriers is limited
Solution Approach 1:
The network side performs preliminary actions by configuring the UE with information about which carriers carry MBMS services before the UE needs to receive them. This includes providing carrier indication information and service configuration data in advance, allowing legacy UEs to receive MBMS services from multiple carriers without requiring complex multi-carrier reception capabilities in the device itself.
2Adaptability or versatility
If UEs support multiple component carriers, then data services can be received from multiple carriers, but legacy UEs cannot receive data services when camping on MBMS only component carriers
Solution Approach 1:
The network acts as an intermediary by providing adaptation mechanisms that translate multi-carrier MBMS service configurations into formats that legacy UEs can understand and process. The network configures and indicates which carriers carry MBMS services, bridging the gap between advanced network capabilities and legacy device limitations.
3Productivity
If MBMS only component carriers are used, then bandwidth efficiency is improved, but legacy UEs cannot acquire other types of data services
Solution Approach 1:
The network segments services by designating specific carriers as MBMS-only carriers while keeping other carriers available for unicast and multicast services. This segmentation allows MBMS services to be delivered efficiently on dedicated carriers while legacy UEs can still access other data services on non-MBMS carriers, maintaining both bandwidth efficiency and service versatility.
Data Source
AI summary
Communication devices and methods thereof are provided. In one embodiment, the method comprises the communication device receiving information from one of a first carrier which indicates a second carrier carries a point-to-multipoint data, and the communication device determining to receive the point-to-multipoint data according to the received information.