Handover Early Simultaneous Reception for 5G Multi-TRP
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Solution Overview
Problem
Existing handover procedures in 5G and 6G wireless systems often disrupt multi-reception capabilities, leading to inefficient and prolonged single-reception operations during cell handovers, particularly when transitioning to multi-TRP capable cells.
Innovation Solution
Implementing early exchange of user equipment capability information, including multi-transmission/reception and beam reporting factors, during the handover preparation phase, along with the provision of user-specific channel measurement resources to enable simultaneous multi-reception capabilities post-handover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If handover procedures are performed in existing 5G and 6G wireless systems, then cell handover is completed, but multi-reception capabilities are disrupted and single-reception operations are prolonged
Solution Approach 1:
The patent applies preliminary action by exchanging capability information during the handover preparation phase before the actual handover execution. The source base station sends the UE's multi-reception capability to the target base station in advance, and the target base station prepares configuration information accordingly. This allows the UE to maintain multi-reception capability throughout the handover process rather than being forced into single-reception mode, thereby reducing handover latency while preserving reliability.
2Productivity
If capability information is exchanged during handover preparation phase, then simultaneous multi-reception is enabled post-handover, but signaling overhead increases
Solution Approach 1:
The patent extracts only the essential capability information needed for multi-reception operation from the complete UE capability set. Specifically, it identifies and exchanges particular parameters such as multi-TRP capability, beam reporting capability, and channel measurement capability during handover preparation. This selective extraction approach enables simultaneous multi-reception functionality while minimizing signaling overhead by transmitting only the most critical capability parameters rather than comprehensive capability information.
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for handover enabling early simultaneous reception. A method may include transmitting a handover request including user equipment capability information to a target cell during a handover preparation phase of a user equipment to the target cell. The user equipment capability information may include at least one of user equipment multi-transmission or user equipment multi-reception capabilities, single-downlink control information capabilities or multi-downlink control information capabilities, group based beam reporting capability or beam sweeping factors. The method may also include receiving, from the target cell during the handover preparation phase to the target cell, an acknowledgment including a user equipment specific channel measurement resources. The method may further include transmitting the user equipment specific channel measurement resources to the user equipment.