Simultaneous Multi-Panel Uplink With Timing Capability Reporting
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Solution Overview
Problem
Existing 5G systems face challenges in efficiently enabling uplink simultaneous transmission on multiple panels (STxMP) due to complexities in managing transmission timing differences across multiple antenna panels, leading to coverage loss and reduced throughput.
Innovation Solution
A user equipment (UE) and network device framework is introduced to determine and communicate UE capability information regarding maximum transmission timing differences for STxMP, enabling the network device to decide on STxMP enablement, with assistance information for minimizing overhead and ensuring synchronized transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink simultaneous transmission on multiple panels is implemented, then uplink throughput is improved, but transmission timing management complexity increases
Solution Approach 1:
The patent introduces a maximum transmission timing difference parameter that quantifies the timing synchronization requirement for multi-panel transmissions. By defining and reporting this parameter, the system transforms the complex timing management problem into a manageable parameter-based control mechanism, allowing the network to make informed decisions about STxMP enablement based on specific timing difference thresholds.
2Device complexity
If transmission timing differences across multiple panels are not managed, then device complexity is reduced, but coverage loss occurs
Solution Approach 1:
The patent implements preliminary action by having the UE report its maximum transmission timing difference capability to the network device before actual STxMP transmissions occur. This advance reporting allows the network to pre-evaluate whether the UE can support STxMP operations within acceptable timing synchronization margins, preventing coverage loss by ensuring timing management requirements are met before enabling multi-panel simultaneous transmission.
3Ease of operation
If STxMP is enabled without capability reporting, then ease of operation is improved, but transmission reliability decreases
Solution Approach 1:
The patent implements a feedback mechanism where the UE reports its maximum transmission timing difference capability to the network device. This feedback loop provides the network with essential information about the UE's timing synchronization capabilities, enabling the network to make reliable decisions about STxMP enablement. The feedback ensures that STxMP is only enabled when the UE can maintain acceptable timing differences, thereby preserving transmission reliability while maintaining ease of operation.
Data Source
AI summary
Embodiments of the present disclosure relate to uplink simultaneous transmission on multiple panels. According to embodiments of the present disclosure, a user equipment (UE) comprises a transceiver configured to communicate with a network; and a processor communicatively coupled to the transceiver and configured to perform operations. The operations comprise determining a UE assistance information for uplink (UL) Simultaneous Transmission on Multiple Panels (STxMP). The operations further comprise reporting the UE assistance information to the network device. The operations further comprise receiving a UL STxMP enabling indication from the network device. The operations further comprise performing UL STxMP with the network device when the received UL STxMP enabling indication indicates that UL STxMP is enabled.