Antenna Panel Capability Signaling for Wireless Devices
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Solution Overview
Problem
Current wireless communication systems do not effectively account for the capabilities of antenna panels, leading to suboptimal selection and utilization of these panels for transmission and reception, which affects radio performance and power efficiency.
Innovation Solution
A method for capability signalling between wireless devices and network nodes, where the wireless device obtains and transmits the capability of its antenna panels, such as receive-only, transmit-only, or receive-and-transmit capabilities, to enable the network node to schedule transmissions optimally based on these capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network node selects antenna panels for activation without considering panel capabilities, then the selection process is simple, but radio performance deteriorates due to suboptimal panel utilization
Solution Approach 1:
The wireless device performs capability indication in advance by transmitting uplink capability information to the network node before actual communication occurs. This preliminary action allows the network node to make informed antenna panel selection decisions without real-time complexity, resolving the contradiction between performance optimization and system complexity.
2Adaptability or versatility
If antenna panels are equipped for both transmit and receive capabilities, then versatility is improved, but cost and complexity increase
Solution Approach 1:
Different antenna panels are configured with different capabilities (receive-only, transmit-only, or full duplex) based on specific application requirements. Instead of making all panels identical with full capabilities, the system applies local quality by tailoring each panel's functionality to its intended use, reducing overall complexity while maintaining versatility.
Solution Approach 2:
The capability indication mechanism provides a universal framework that accommodates multiple panel types (receive-only, transmit-only, full-duplex) through a single signaling interface. This universal approach allows the system to support diverse panel configurations without requiring separate handling mechanisms for each type.
3Ease of manufacture
If receive-only panels are used to reduce cost, then manufacturing cost decreases, but transmission capability is lost
Solution Approach 1:
The system dynamically assigns different operational modes to different antenna panels based on capability indications. Receive-only panels are dynamically utilized for downlink reception while transmit-only or full-duplex panels handle uplink transmissions. This dynamic role assignment allows cost-effective receive-only panels to contribute to the system while maintaining overall transmission capability through other panels.
Data Source
AI summary
The present disclosure provides a method, performed by a wireless device, for capability signalling. The wireless device comprises one or more antenna panels configured to communicate with a network node. The method comprises obtaining a capability of at least one of the antenna panels, wherein the capability comprises at least one of: a receive-only panel, ROP, capability, a transmit-only panel, TOP, capability, a receive-and-transmit panel, RTP, capability and a dynamic RTP capability. The method comprises transmitting, to the network node, control signalling indicative of the obtained capability of the at least one antenna panel.