Multi-TRP Uplink Scheduling for Beam Handover Time Windows
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Solution Overview
Problem
The challenge in wireless communication systems is meeting the processing time required for inter-beam handover in uplink transmission based on multiple TRPs/panels, which can lead to resource waste and inefficient resource utilization.
Innovation Solution
A method is introduced where signals are transmitted in specific time pools, with a condition set determining whether to drop signals on partial multicarrier symbols to ensure processing time requirements are met for beam handover, thereby optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam handover is performed between different TRPs/panels in uplink transmission, then transmission reliability is improved, but processing time requirement increases causing resource wastage
Solution Approach 1:
The patent applies preliminary action by determining the time window requirement for beam handover in advance and using this information to selectively drop signals on partial multicarrier symbols. The condition set evaluates whether sufficient time windows are available before committing to beam handover, preventing resource wastage while ensuring transmission reliability is maintained when feasible.
2Productivity
If signals are transmitted on all multicarrier symbols, then resource utilization is maximized, but processing time for beam handover cannot be satisfied
Solution Approach 1:
The patent applies partial action by transmitting signals on only a subset of multicarrier symbols rather than all symbols. The condition set determines whether to drop signals on partial multicarrier symbols based on available time windows, achieving a balance between resource utilization and beam handover processing requirements.
3Reliability
If beam handover processing time is reserved, then beam handover reliability is improved, but resource wastage occurs due to unused transmission opportunities
Solution Approach 1:
The patent applies dynamics by making the signal transmission strategy adaptive based on real-time conditions. The condition set dynamically evaluates whether to drop signals on partial multicarrier symbols by checking if sufficient time windows are available for beam handover, allowing the system to flexibly adjust between full transmission and selective dropping based on current resource availability and handover requirements.
Data Source
AI summary
Method and a device in UE and base station for wireless communication. A first node receives a first signaling; transmits a first signal in a first time pool, and transmits a second signal in a second time pool. The first signaling is used to determine K time windows; the first time window and the second time window are respectively two time windows that are adjacent among the K time windows, the first time window and the second time window being respectively associated with a first reference signal and a second reference signal; whether a first condition set is satisfied is used to determine whether the first time pool comprises all multicarrier symbols in the first time window and/or whether the second time pool comprises all multicarrier symbols in the second time window. The above method satisfies the request for processing time of beam handover and improves the resource utilization ratio.