Location-Aware Multicast Control Channels for Regional Latency
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Solution Overview
Problem
Existing multicast services in radio networks struggle to support varying latency requirements across different geographical areas, leading to inefficient resource utilization and increased interference.
Innovation Solution
Introduce multiple multicast control channels with varying modification periods to match latency requirements in different geographical areas, allowing user equipment to selectively monitor control channels based on location and QoS values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single multicast control channel is used to configure the multicast transport channel, then the device complexity is reduced, but the system cannot support different latency requirements in different geographical areas
Solution Approach 1:
The patent divides the single multicast control channel into multiple control channels (first multicast control channel and second multicast control channel), each configured with different modification periods tailored to specific geographical areas and latency requirements. This segmentation allows the system to support diverse latency needs without requiring a completely new control mechanism.
Solution Approach 2:
Different multicast control channels are configured with location indicators that specify their valid geographical areas. Each control channel has localized quality characteristics (modification periods) optimized for its specific area, allowing UEs to select the appropriate channel based on their location and latency requirements.
2Adaptability or versatility
If multiple multicast control channels with different modification periods are introduced, then geographical-area dependent latency requirements are supported, but the UE monitoring complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the UE determines its location and uses this information to select the appropriate multicast control channel. The network provides location indicators with control channel configurations, and the UE feeds back its location information to make an informed selection, simplifying the monitoring process.
Solution Approach 2:
The patent changes the parameter of modification period across different control channels to match latency requirements of different geographical areas. By varying this key parameter, the system achieves geographical adaptability while maintaining manageable UE monitoring complexity through standardized selection criteria.
3Reliability
If all UEs monitor all multicast control channels, then complete service information is obtained, but energy consumption increases
Solution Approach 1:
The patent extracts the location indicator information from the control channel configurations and uses it as a filtering criterion. UEs extract only the relevant control channel configurations that match their location and latency requirements, eliminating the need to monitor all channels and thereby reducing energy consumption.
Solution Approach 2:
Instead of requiring UEs to monitor all available control channels (excessive action), the patent enables UEs to monitor only the partial set of channels relevant to their location and service requirements. This partial monitoring approach maintains sufficient service configuration accuracy while significantly reducing energy consumption.
Data Source
AI summary
There is provided a method including receiving multicast data via a multicast transport channel that is associated with a plurality of multicast control channels. At least one multicast control channel configuration of the multicast control channels is associated with at least one location indicator.