Relay UE Multi-Path Transmission Switching for Power-Efficient Reliability
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing simultaneous transmission on multiple paths, particularly in activating or deactivating such transmissions, leading to unnecessary power consumption and resource inefficiencies.
Innovation Solution
The proposed solution involves using a relay user equipment (UE) with a transceiver and processor to receive configuration information and indications for activating or deactivating simultaneous transmission on multiple paths, utilizing RRC messages, MAC CEs, and SRAP/RLC control PDUs to manage these transmissions effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If simultaneous transmission on multiple paths is activated to improve reliability and throughput, then network performance is enhanced, but power consumption and resource usage increase
Solution Approach 1:
The system dynamically activates or deactivates simultaneous transmission on multiple paths based on current network conditions and requirements. The base station receives indication information from the relay UE and adjusts the transmission mode accordingly, switching between single-path and multi-path transmission to balance reliability needs with power consumption.
Solution Approach 2:
The base station changes the transmission parameter (activation/deactivation of simultaneous transmission) based on received indication information. This parameter change allows the system to adapt between different transmission modes, optimizing the trade-off between reliability improvement and power consumption increase.
2Productivity
If simultaneous transmission on multiple paths is continuously maintained, then throughput is improved, but resource efficiency deteriorates
Solution Approach 1:
The system employs periodic assessment of transmission needs through the relay UE's indication information feedback mechanism. Instead of continuous multi-path transmission, the system periodically evaluates whether simultaneous transmission is necessary and activates it only when needed, thereby maintaining throughput when beneficial while avoiding resource waste during single-path sufficient conditions.
3Reliability
If the relay UE continuously monitors and reports path conditions, then transmission optimization is improved, but signaling overhead increases
Solution Approach 1:
The system extracts only the essential indication information needed for transmission mode decisions from the relay UE, rather than requiring continuous detailed channel state feedback. This extracted indication information is sufficient for the base station to make activation/deactivation decisions, reducing signaling overhead while maintaining transmission optimization capability.
Data Source
AI summary
The present application relates to methods and apparatuses for simultaneous transmission on multiple paths. One embodiment of the present disclosure provides a relay user equipment (UE), which includes: a transceiver: and a processor coupled with the transceiver and configured to: receive configuration information associated with a data radio bearer (DRB) of a remote UE; and receive, from at least one of a base station (BS) or from the remote UE, a first indication indicating activation or deactivation of a simultaneous transmission on multiple paths of the DRB of the remote UE, wherein the multiple paths include at least a direct path and an indirect path.