Multicast Broadcast Services Modulation-Based Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Multicast Broadcast Services (MBS) in cellular networks are sensitive to disruptions caused by individual User Equipment (UE) communication issues, such as low Signal-to-Interference and Noise ratio (SINR), which can affect the entire MBS session, leading to service disruptions.
Innovation Solution
Implementing a modulation or Modulation and Coding Scheme (MCS)-based MBS system that uses multiple radio links with different Quadrature Amplitude Modulation (QAM) schemes or MCSs to reduce session sensitivity to UE-related disruptions, allowing data to be conveyed from the access network to UEs over multiple signals with varying modulation schemes, thereby minimizing the impact of individual UE communication issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single radio link is used for MBS transmission, then device complexity is reduced, but reliability deteriorates due to sensitivity to UE communication disruptions
Solution Approach 1:
The patent segments the MBS transmission by dividing UEs into different groups based on their modulation capabilities and assigning separate radio links to each group. This segmentation isolates disruptions to specific groups, preventing them from affecting the entire MBS session, thereby improving reliability without requiring complete system redundancy.
Solution Approach 2:
The patent applies local quality by tailoring the modulation scheme and radio link parameters to the specific characteristics of each UE group. Each group receives optimized transmission parameters matched to their capabilities and channel conditions, improving individual group reliability while maintaining overall system efficiency.
2Reliability
If multiple radio links with different modulation schemes are used, then reliability improves by reducing session sensitivity to disruptions, but device complexity increases
Solution Approach 1:
The patent implements dynamics by enabling the network to dynamically adjust modulation schemes and radio link assignments based on real-time UE channel conditions and capabilities. This dynamic adaptation allows the system to optimize reliability without maintaining multiple static transmission paths, reducing overall system complexity.
Solution Approach 2:
The patent utilizes parameter changes by varying modulation schemes (e.g., QAM orders) and transmission parameters across different radio links and time slots. This allows the system to achieve multiple transmission qualities simultaneously, improving reliability while managing complexity through parameter diversity rather than structural redundancy.
3Adaptability or versatility
If modulation-based MBS is implemented, then adaptability to different UE capabilities improves, but manufacturing complexity increases
Solution Approach 1:
The patent applies universality by designing a multi-functional transmission system where a single MBS framework can serve UEs with diverse modulation capabilities through configurable radio links. This universal approach allows the same system architecture to adapt to different UE types without requiring separate dedicated systems for each capability level.
Solution Approach 2:
The patent implements preliminary action by pre-configuring multiple radio links with different modulation schemes and capabilities before actual transmission begins. The network prepares and assigns appropriate links based on UE capabilities in advance, simplifying the actual transmission process and reducing implementation complexity during operation.
Data Source
AI summary
A system comprises one or more devices. The devices may be configured to: receive information pertaining to a multicast broadcast service (MBS) session; identify, based on the information, User Equipment devices (UEs) that have joined the MBS session; identify at least two modulation schemes that are to be used by the UEs during the MBS session; receive multicast data from a network component; transmit, during the MBS session, the received multicast data to the UEs using the identified at least two modulation schemes.