Receive Spatial Configuration Signaling for Wireless Beam Management
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Solution Overview
Problem
Current wireless communication systems lack explicit indication of receive beam/receive spatial configuration for communication between base stations and user equipment (UE) or between peer devices, leading to inefficiencies in beam management and increased signaling overhead.
Innovation Solution
A first wireless device transmits a receive configuration indicator (RCI) to explicitly indicate its receive spatial configuration, allowing for the transmission of a slot indication of future time slots for communication using the indicated configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If implicit beam indication methods are used, then device complexity is reduced, but measurement precision of spatial configuration is insufficient
Solution Approach 1:
The patent introduces a Receive Configuration Indicator (RCI) as an intermediary parameter that explicitly indicates the receive spatial configuration. This RCI acts as a mediator between the implicit beam properties and the explicit configuration indication, allowing the receiving device to clearly identify which receive beam configuration corresponds to the transmitting device's transmit beam, thereby improving measurement precision without significantly increasing overall system complexity.
2Productivity
If explicit spatial configuration indication is implemented, then communication efficiency is improved, but signaling overhead increases
Solution Approach 1:
The patent designs the RCI to serve multiple functions simultaneously: it indicates the receive spatial configuration, enables the transmitting device to determine appropriate transmit beams, and facilitates slot indication for future communications. By making this single parameter multi-functional, the patent achieves improved communication efficiency without proportionally increasing signaling overhead.
3Reliability
If beam management procedures are enhanced, then reliability of spatial configuration is improved, but ease of operation deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the receiving device sends back an RCI indicating its receive spatial configuration to the transmitting device. This feedback loop allows the transmitting device to reliably determine which transmit beams will be effective, improving spatial configuration reliability. The automated nature of this feedback exchange maintains ease of operation despite the enhanced reliability requirements.
Data Source
AI summary
According to some aspects, a wireless device may indicate to another device a receive configuration indicator (RCI) to indicate a receive spatial configuration of the wireless device. For example, a first device may configure the first device to receive, from a second device, a signal using a first receive spatial configuration of the first device that corresponds to a first transmit spatial configuration of the second device. The first device may further determine a RCI to indicate the first receive spatial configuration of the first device, and may transmit the RCI to the second device.