Wireless Bandwidth Part Configuration for Multicast and Unicast
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Solution Overview
Problem
Current wireless communications networks face challenges in efficiently managing communications resources for devices with different traffic profiles, particularly in supporting both unicast and multicast services simultaneously, leading to issues such as under-utilization of system bandwidth and increased power consumption.
Innovation Solution
The method involves transmitting an indication to communications devices about the availability of multicast services on wireless access resources, allowing them to operate in either a first mode where multicast resources are dedicated or a second mode where they are integrated with unicast resources, enabling flexible resource allocation based on device capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated bandwidth part is provided for multicast service, then multicast service quality is improved, but system bandwidth utilization is reduced
Solution Approach 1:
The patent implements dynamic bandwidth part configuration where the network can switch between dedicated multicast bandwidth parts and shared bandwidth parts based on real-time traffic conditions and device capabilities. This allows the system to adaptively allocate resources, providing dedicated bandwidth when needed for quality assurance while utilizing shared bandwidth to improve overall system efficiency.
Solution Approach 2:
The patent applies different bandwidth part configurations to different communications devices based on their individual capabilities and service requirements. Devices with higher capabilities can access dedicated multicast bandwidth parts, while devices with limited capabilities use shared bandwidth parts, creating local quality differentiation that optimizes both service quality and resource utilization.
2Adaptability or versatility
If multiple bandwidth parts are configured for different services, then service flexibility is improved, but device complexity increases
Solution Approach 1:
The patent pre-configures multiple bandwidth parts with different characteristics (dedicated multicast, shared, unicast) before service establishment. The network then selects and activates the appropriate pre-configured bandwidth part based on device capabilities and service requirements, avoiding the need for devices to dynamically configure complex bandwidth parameters in real-time.
Solution Approach 2:
The patent segments the bandwidth into distinct parts with specific functions (dedicated multicast bandwidth part, shared bandwidth part, unicast bandwidth part). This segmentation allows devices to select appropriate segments based on their capabilities rather than managing all possible configurations, simplifying device complexity while maintaining service flexibility.
3Reliability
If bandwidth parts are dedicated to specific services, then service quality is improved, but resource utilization efficiency is reduced
Solution Approach 1:
The patent merges dedicated multicast bandwidth parts with shared bandwidth parts in certain configurations, allowing both service types to coexist in the same bandwidth resources. This merging enables the system to provide guaranteed quality for multicast services while simultaneously improving overall resource utilization efficiency by reducing redundant dedicated allocations.
Data Source
AI summary
A method including transmitting, by infrastructure equipment of a wireless network, to one or more communications devices an indication that a multicast service can be received on communications resources of a wireless access interface provided by the wireless communications network. The indication includes an indication that the communications resources can be received either according to a first mode of operation in which the communications resources of the multicast service form part of a bandwidth part dedicated for the multicast service with a second bandwidth part dedicated for unicast transmission to or reception from a communications device, or according to a second mode of operation in which the communications resources of the multicast service form part of a bandwidth part which includes communications resources for unicast transmission to or reception from a communications device.