UE Scheduling Indicator for Point-to-Multipoint Service
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Solution Overview
Problem
In conventional wireless communication systems, user equipment (UE) continues to receive and process scheduling messages for point-to-multipoint services even when there is no data transmission, leading to unnecessary resource consumption, such as battery power, as UE cannot differentiate between data transmission and non-transmission periods without continuous message checking.
Innovation Solution
The system introduces a method where the network transmits reception reservation information within scheduling messages, allowing the UE to delay or skip receiving scheduling messages during periods with no data transmission, using indicators to reserve reception for specific scheduling periods, thereby conserving resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE continues to receive and process scheduling messages for point-to-multipoint services, then the UE can detect any data transmission, but unnecessary resource consumption occurs such as battery power
Solution Approach 1:
The network transmits scheduling messages periodically with a configured period, and the UE receives messages only at these periodic intervals rather than continuously. This periodic reception mechanism allows the UE to enter low-power states between scheduled receptions, significantly reducing battery consumption while maintaining reliable detection of data transmission opportunities.
Solution Approach 2:
The network configures the UE in advance with reception reservation information indicating future scheduling periods where data transmissions will occur. This preliminary configuration allows the UE to proactively wake up only at predetermined times to receive scheduling messages, avoiding continuous monitoring and reducing energy consumption while ensuring no data transmission is missed.
2Use of energy by moving object
If UE skips receiving scheduling messages during no-transmission periods, then battery power is conserved, but the UE cannot differentiate between data transmission and non-transmission periods
Solution Approach 1:
The network provides preliminary configuration information to the UE that explicitly marks which scheduling periods will contain data transmissions. This advance notification allows the UE to differentiate between transmission and non-transmission periods without continuous monitoring, as the UE already knows in advance which periods to expect data and which to skip, preventing information loss while conserving energy.
Solution Approach 2:
The network sends reception reservation information as feedback to the UE, confirming future data transmission schedules. This feedback mechanism ensures the UE has accurate information about upcoming transmission periods, allowing the UE to confidently skip non-transmission periods without losing the ability to differentiate between transmission and non-transmission states.
Data Source
AI summary
A method for controlling a user equipment (UE) capable of receiving a point-to-multipoint service in a wireless communication system comprises receiving the point-to-multipoint service on a physical channel from a network. The method also comprises receiving a first scheduling indicator associated with a number of scheduling periods where there is no transmission related to the point-to-multipoint service, wherein each scheduling period is associated with a scheduling indicator. The method also comprises receiving the point-to-multipoint service through the physical channel after the number of scheduling periods where there is no transmission. The point-to-multipoint service and the first scheduling indicator are received on the same physical channel. The method may further comprise receiving a second scheduling indicator after the number of scheduling periods where there is no transmission. The method may further comprise receiving the point-to-multipoint service through the physical channel in response to the second scheduling indicator.