Dynamic Broadcast Spectral Efficiency for Wireless Content Delivery
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Solution Overview
Problem
Current content distribution systems face inefficiencies in wireless networks due to the scarcity of radio resources, leading to sub-optimal performance in unicast delivery and limited spectral efficiency in broadcast solutions, which result in lower throughput and quality of service for users.
Innovation Solution
A method and system that dynamically determine optimal broadcast spectral efficiency parameters based on radio conditions experienced by target devices, allowing for radio and broadcast network awareness to adjust target throughputs and other broadcast parameters, thereby optimizing content distribution and delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If unicast delivery is used to enable content to reach individual users, then user-specific content delivery is achieved, but radio and network resources are inefficiently consumed when multiple users consume the same content simultaneously
Solution Approach 1:
The patent combines unicast and broadcast delivery mechanisms into a unified system. When multiple users request the same content, the system merges their delivery requirements into a single broadcast transmission, thereby reducing redundant radio and network resource consumption while maintaining user-specific delivery capability.
Solution Approach 2:
The system dynamically switches between unicast and broadcast delivery modes based on real-time conditions. When only one user requests content, unicast is used; when multiple users request the same content, the system transitions to broadcast mode, optimizing resource utilization according to current demand patterns.
2Productivity
If broadcast is used to deliver content to multiple users simultaneously, then spectral efficiency is improved, but the system must operate at lower spectral efficiency levels to accommodate poorer-covered users
Solution Approach 1:
The patent applies different spectral efficiency levels to different user groups based on their radio conditions. Users with poor coverage receive content at lower spectral efficiency levels to ensure reliable delivery, while users with good coverage can receive content at higher spectral efficiency levels, thereby achieving both coverage and efficiency goals.
Solution Approach 2:
The broadcast system segments users into different groups based on their radio conditions and coverage quality. This segmentation allows the system to apply customized delivery parameters to each group, ensuring that poorer-covered users receive reliable service while maintaining overall spectral efficiency through optimized resource allocation.
3Reliability
If broadcast operates at fixed spectral efficiency to maximize coverage, then all users can receive content, but radio-advantaged users experience sub-optimal throughput
Solution Approach 1:
The system dynamically adjusts spectral efficiency parameters based on user feedback and radio conditions. Instead of operating at a fixed spectral efficiency level, the broadcast system adapts its parameters in real-time, increasing spectral efficiency for users with good coverage while maintaining adequate service for users with poor coverage, thereby optimizing overall user throughput.
Solution Approach 2:
The patent implements feedback mechanisms where user devices report their reception quality and radio conditions to the broadcast system. This feedback enables the system to adjust spectral efficiency parameters dynamically, ensuring that radio-advantaged users receive content at optimal throughput while maintaining coverage for all users.
4Adaptability or versatility
If unicast delivery is used for each user stream, then user-specific content can be delivered, but a multiplicity of radio and network resources must be assigned when multiple users consume the same content
Solution Approach 1:
The patent merges multiple unicast delivery streams into a single broadcast stream when multiple users request the same content. This merging reduces the complexity of resource allocation by eliminating the need to manage multiple separate resource assignments, while still maintaining the capability to deliver user-specific content when needed.
Data Source
AI summary
A method and system of broadcasting includes determining an identified content for a broadcast to a broadcast group that may include a plurality of devices in a service area. The method also includes determining a priority for the identified content for the plurality of devices, determining radio conditions for each of the plurality of devices in the service area; and determining an available network capacity of a network for broadcasting in the service area; determining a spectral efficiency for the broadcast to achieve a performance target, said. The method also includes performance target based on the priority for the identified content, the radio conditions and the available network capacity. The method also includes broadcasting the identified content to the plurality of devices in the service area based on the spectral efficiency for the broadcast.