Relay UE Scheduling Under Network Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently scheduling user equipment (UE) resources under network control, particularly in scenarios where UE acts as a relay node, leading to interference with other transmissions.
Innovation Solution
A method where a UE configured as a relay device receives configuration messages from a network entity to schedule resources for other UEs, and based on these messages, the relay UE receives resource indications from the network entity to transmit scheduling information to the remote UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a relay UE schedules resources for remote UEs without network control, then scheduling flexibility is improved, but interference with other transmissions increases
Solution Approach 1:
The network entity acts as an intermediary between the relay UE and the resource allocation decision. The network entity receives scheduling requests from the relay UE, processes them considering overall network conditions, and provides authorized resource allocations. This mediator approach allows scheduling flexibility while preventing interference by ensuring network-approved resource assignments.
Solution Approach 2:
The system implements a feedback mechanism where the relay UE sends scheduling requests to the network entity, which responds with authorized resource allocations. This closed-loop feedback ensures that resource scheduling is coordinated with network conditions, allowing flexibility when needed while preventing interference through network-controlled resource assignment.
2Manufacturing precision
If multiple messages are used for relay node configuration, then configuration accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent combines the relay node configuration and resource scheduling authorization into a single integrated message from the network entity. This merging approach maintains configuration accuracy by including all necessary parameters (relay UE identifier, remote UE identifier, allocated resources, timing information) in one message, while reducing signaling overhead compared to using separate messages for each configuration aspect.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive configuration information identifying the UE as a relay node and indicating for the UE to schedule resources for other UEs. The UE may receive a single message from a network entity with the configuration information or multiple messages from the network entity with the configuration information. A remote UE may request scheduling information from the relay UE. A network entity, such as a base station, may provide one or more resources (e.g., time resources, frequency resources, or both) for the relay UE to schedule one or more remote UEs. The relay UE may send scheduling information to the one or more remote UEs based on receiving the resources.