Radio Transceiver Beam Management via Data Signal Merging
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Solution Overview
Problem
Current beam management techniques for radio transceiver devices are inefficient, particularly for analog and hybrid antenna arrays, as they require large overhead signaling and are time-consuming due to the need for sequential beam sweeping, which increases power consumption and interference.
Innovation Solution
A method and device for beam management that involves receiving a data and/or control signaling segment in a fixed reference beam, initiating a beam sweep in a candidate beam set, and evaluating the quality of each beam using restored symbols from the fixed reference beam to determine a quality metric, thereby optimizing beam selection without additional time/frequency resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sequential beam sweeping is performed in analog and hybrid antenna arrays, then beam management can be achieved, but large overhead signaling and time consumption occur
Solution Approach 1:
The patent combines beam management operations with regular data transmission by allowing the terminal to perform beam sweeping on received data signals from the network side. This merging eliminates the need for separate dedicated reference signals for beam management, thereby reducing overhead signaling and time consumption while maintaining beam management capability.
Solution Approach 2:
The data signals transmitted by the network side serve dual purposes: they carry user data information and simultaneously function as reference signals for beam management. This multi-functionality approach allows the same signal to accomplish both data transmission and beam quality evaluation, reducing the need for additional dedicated signals.
2Reliability
If sequential beam sweeping is performed in analog and hybrid antenna arrays, then beam management can be achieved, but power consumption and interference increase
Solution Approach 1:
The patent merges beam management functions with regular data transmission operations. By utilizing existing data signals for beam sweeping and quality evaluation, the system avoids the need for additional dedicated beam management signals, thereby reducing power consumption and minimizing interference to other network operations.
Solution Approach 2:
The terminal device performs beam management autonomously by evaluating beam quality based on received data signals from the network side. This self-service approach eliminates the need for the network side to transmit additional reference signals, reducing overall system power consumption and interference.
3Measurement precision
If dedicated reference signals are transmitted for beam management, then beam quality evaluation can be performed, but overhead signaling increases
Solution Approach 1:
The patent makes data signals serve multiple functions by using them both for data transmission and as reference signals for beam management. This approach maintains measurement precision for beam quality evaluation while eliminating the need for separate dedicated reference signals, thereby reducing overhead signaling.
Solution Approach 2:
The patent combines the functions of data transmission and beam management reference signals into a single signal structure. By doing so, it maintains the ability to accurately evaluate beam quality while reducing the total amount of signaling overhead in the system.
Data Source
AI summary
There is provided mechanisms for beam management of a radio transceiver device. A method is performed by the radio transceiver device. The method includes receiving a data and/or control signalling segment in a fixed reference beam. The method includes, whilst doing so, initiating a beam sweep in a candidate beam set, whereby part of the data and/or control signalling segment is received in each of the beams in the candidate beam set. The method includes then evaluating, based on the part of the data and/or control signalling segment received in each of the beams in the candidate beam set and using restored symbols of the data and/or control signalling segment received in the fixed reference beam as reference, a quality metric for each of the beams in the candidate beam set.