Dynamic Broadcast Area Adjustment in LTE Networks
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Solution Overview
Problem
Current MBMS broadcast area adjustments in 4G LTE networks are costly and inefficient, requiring pre-planned base station changes that waste network resources, as they either broadcast to areas with no subscribers or use excessive spectrum for unicast to new subscribers.
Innovation Solution
A method and device for dynamically adjusting broadcast areas by obtaining information on target base stations, setting a broadcast service base station list, and selectively transmitting new broadcast area identification codes to optimize service coverage and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the broadcast area is dynamically adjusted to include new subscribers in areas 208 and 212, then more users can access the broadcast service, but the network resources are wasted by broadcasting to areas with no subscribers or using excessive spectrum for unicast
Solution Approach 1:
The patent implements dynamic broadcast area adjustment by allowing the eNodeB to modify the broadcast area identification code assignment dynamically based on real-time subscriber distribution. Instead of pre-planned static areas, the system can adaptively expand or contract broadcast areas to match actual user locations, thereby avoiding broadcasting to areas with no subscribers while maintaining flexibility to include new subscribers in areas 208 and 212.
Solution Approach 2:
The patent changes the parameter of broadcast area identification code from a fixed pre-planned configuration to a dynamic parameter that can be modified by the eNodeB. By changing this parameter based on subscriber distribution patterns, the system optimizes resource utilization - expanding broadcast areas when subscribers are detected in new regions (such as areas 208 and 212) and contracting when no subscribers are present, thus avoiding network resource waste.
2Ease of manufacture
If pre-planned broadcast areas are used, then network configuration is simple, but dynamic adjustment requires huge costs and cannot be completed instantly
Solution Approach 1:
The patent transforms the static pre-planned broadcast area configuration into a dynamic system where the eNodeB can adjust broadcast area identification codes in real-time. This dynamic mechanism allows instant adjustment when subscribers appear in new areas (such as areas 208 and 212), eliminating the delay inherent in pre-planned configurations while maintaining configuration simplicity through automated eNodeB control.
Solution Approach 2:
The patent implements self-service by enabling the eNodeB to automatically detect subscriber locations and autonomously adjust broadcast area configuration without requiring manual network reconfiguration. The system monitors subscriber distribution and dynamically modifies broadcast area identification codes as needed, providing instant adjustment capability while keeping the configuration process simple through automated decision-making.
3Adaptability or versatility
If broadcast area is expanded to cover all three areas 208, 210 and 212, then all potential subscribers can access the service, but broadcast content is transmitted to areas with no subscribers wasting network bandwidth
Solution Approach 1:
The patent applies local quality by customizing broadcast area configuration for each local area (208, 210, 212) based on actual subscriber distribution. Instead of uniform expansion to all areas, the system selectively expands broadcast areas only where subscribers are detected, thereby providing comprehensive service coverage to areas with subscribers (such as 208 and 212) while avoiding bandwidth waste in areas without subscribers.
Solution Approach 2:
The patent implements feedback mechanisms where the eNodeB continuously monitors subscriber distribution patterns and uses this feedback to dynamically adjust broadcast area identification codes. This feedback loop ensures that broadcast content is transmitted only to areas with active subscribers, optimizing the balance between service coverage and bandwidth consumption by expanding areas like 208 and 212 when subscribers are detected and contracting when none are present.
Data Source
AI summary
A method for dynamically adjusting a broadcast area is provided. The method includes the following steps. Information of at least one target base station which subscribes a broadcast service is obtained. A broadcast service base station list corresponding to a broadcast area identification code is set to contain the at least one target base station. The broadcast area identification code corresponds to the broadcast service. A command for adding a new broadcast area identification code is selectively transmitted to the at least one target base station in the broadcast service base station list so that the at least one target base station records the broadcast area identification code to receive the broadcast service corresponding to the broadcast area identification code.