MBMS Resource Allocation via Dynamic MCS Configuration
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Solution Overview
Problem
In LTE systems, existing technologies face challenges in efficiently utilizing wireless resources for multimedia broadcast multicast services (MBMS) due to differing Quality of Service (QoS) requirements across various services, which complicates the use of different modulation and coding schemes for optimal resource allocation.
Innovation Solution
A method where a network side device configures Modulation and Coding Schemes (MCS) for MBSFN subframes based on service requirements, allowing for dynamic multiplexing and informing User Equipment (UE) of the employed MCS for proper decoding, enabling different MCS configurations for logical channels with the same QoS to be scheduled continuously and mapped to Physical Multicast Channels (PMCH).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single modulation and coding scheme is used for all MBMS services, then device complexity is reduced and ease of operation is improved, but resource utilization efficiency deteriorates and quality of service cannot be optimized for different service requirements
Solution Approach 1:
The patent segments MBMS services into different groups based on QoS requirements, with each group assigned a specific MCS. This segmentation allows the system to apply different modulation and coding schemes to different service types (e.g., eMBB, uRLLC, mMTC), optimizing resource utilization for each service category while maintaining manageable system complexity through structured classification.
Solution Approach 2:
The patent implements local quality by allowing different MCS configurations for different service groups and logical channels within the MBMS framework. Each service group can have tailored modulation and coding parameters matched to its specific QoS requirements, enabling optimized performance for individual service types while maintaining overall system coherence.
2Productivity
If different modulation and coding schemes are configured for various MBMS services, then resource utilization efficiency and quality of service are improved, but device complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent establishes a universal MBMS transmission framework that can accommodate multiple service types with different QoS requirements through a common architecture. The unified MCCH and MCH structures serve multiple functions by carrying scheduling information and data for different service groups, reducing the need for separate transmission channels for each service type and thereby managing complexity.
Solution Approach 2:
The patent manages complexity by parameterizing MCS configurations through standardized service group definitions and QoS parameter mappings. Instead of requiring complex individual configurations for each service, the system uses parameter sets that can be selectively applied based on service requirements, simplifying the configuration process while maintaining flexibility for optimized resource allocation.
3Productivity
If MBMS services are multiplexed on the same physical resources, then resource utilization efficiency is improved, but measurement precision and difficulty of detecting and measuring service quality deteriorate
Solution Approach 1:
The patent introduces MCCH as an intermediary channel that carries scheduling information and MCS configuration details for multiplexed MBMS services. This intermediary provides the measurement and control plane with the necessary information to precisely measure and manage service quality for each multiplexed service, enabling accurate QoS monitoring despite physical resource sharing.
Solution Approach 2:
The patent applies preliminary action by configuring MCS and scheduling information in advance through MCCH before actual data transmission on MCH. This pre-configuration allows the system to establish clear service boundaries and quality parameters before multiplexed services begin transmission, facilitating accurate measurement and quality control during the actual service delivery phase.
Data Source
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AI summary
A resource allocation method for dynamic multiplexing of Multimedia Broadcast Multicast Service (MBMS) can be used to improve resource utilization efficiency when multimedia multicast services share a channel. A network side device configures a Modulation and Coding Scheme (MCS) for said logical channels or the Multicast/Broadcast over Single Frequency Network (MBSFN) subframes bearing said logical channels according to the transmission requirements of logical channels, and implements modulation and coding processing for the data of Physical Multicast Channel (PMCH) borne by MBSFN subframes bearing said logical channels by using said MCS. The network side device can employ different modulation and coding in the physical layer according to different Quality of Service (QoS) requirements of different logical channels of MBMS services, thereby achieving the purpose of improving resource utilization efficiency and satisfying different service requirements.