Panel Capability Signaling for Multi-TRP Uplink Transmission
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Solution Overview
Problem
Existing communication systems fail to dynamically update terminal device capabilities associated with each panel, leading to suboptimal communication performance due to non-identical capabilities across multiple antenna panels.
Innovation Solution
A method and apparatus for information transmission that allows a terminal device to send reference signal groups and associated transmission parameter sets to a network device, enabling dynamic updates of terminal device capabilities based on each panel's capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If terminal device supports simultaneous transmission to multiple TRP across multiple antenna panels, then uplink spectrum utilization is enhanced, but device complexity increases due to non-identical capabilities across panels
Solution Approach 1:
The terminal device segments its antenna panels into distinct groups, where each panel or panel group has independently configured capability information. The device maintains separate capability records for each panel, allowing differentiated transmission parameters per panel while managing complexity through structured organization of capability data.
Solution Approach 2:
The terminal device dynamically switches between different panels based on transmission requirements and capability status. Panels can be activated or deactivated dynamically, and the device can transition between single-panel and multi-panel transmission modes depending on network conditions and capability availability.
2Adaptability or versatility
If terminal device dynamically switches panels for transmission, then communication flexibility is improved, but difficulty of detecting and measuring capability increases
Solution Approach 1:
The terminal device performs preliminary capability detection and configuration for each panel before actual transmission occurs. Capability information is pre-configured and stored for each panel, including supported transmission modes, bandwidth capabilities, and MIMO parameters, so that when panel switching is needed, the device can quickly retrieve and apply the appropriate capability information without real-time measurement.
Data Source
AI summary
A method for information transmission includes that, a terminal device sends first information for indicating one or a plurality of reference signal groups, each reference signal groups including one or a plurality of reference signals; and the terminal device sends second information for indicating a transmission parameter set associated with each of the one or the plurality of reference signal groups, where the transmission parameter set is used to represent a terminal device capability corresponding to its associated reference signal group. Also provided are a terminal device and a network device.