Multi-Panel Beam Pair Training for Robust High-Frequency Links
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Solution Overview
Problem
Existing technologies fail to obtain simultaneous-reception and simultaneous-transmission beam pairs using different antenna panels for improved data transmission robustness in high-frequency communication systems.
Innovation Solution
A beam pair training method involving a terminal device receiving configuration information to use different antenna panels for downlink and uplink reference signal measurements and transmissions, allowing for the determination of optimal reception and transmission beams, which are combined into simultaneous-reception and simultaneous-transmission beam pairs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal device uses a single antenna panel for beam training, then the device complexity is reduced, but the data transmission robustness deteriorates
Solution Approach 1:
The terminal device is divided into multiple antenna panels (first antenna panel and second antenna panel), each independently performing beam training operations. This segmentation allows simultaneous reception and transmission beam pairs to be formed from different physical antenna panels, improving transmission robustness while maintaining manageable complexity through modular design
Solution Approach 2:
Multiple antenna panels are configured with identical beam training capabilities, allowing each panel to independently perform reference signal measurement and beam pair determination. This multi-functionality enables the terminal to form simultaneous reception and transmission beam pairs using different panels, enhancing reliability without requiring complex integrated processing
2Productivity
If beam training is performed using the same antenna panel for both reception and transmission, then the device complexity is reduced, but the transmission capacity deteriorates
Solution Approach 1:
The beam training function is segmented across multiple antenna panels, with the first antenna panel dedicated to reception beam training and the second antenna panel dedicated to transmission beam training. This allows simultaneous formation of reception beam pairs and transmission beam pairs using different panels, doubling the effective transmission capacity
Solution Approach 2:
The system transitions from single-panel beam training to multi-panel beam training, adding a spatial dimension to beam formation. By utilizing multiple antenna panels in different physical locations, the system creates additional spatial degrees of freedom for simultaneous reception and transmission operations, enhancing transmission capacity
3Adaptability or versatility
If configuration information is not provided for multiple reference signal resource sets, then the signaling overhead is reduced, but the beam pair training capability deteriorates
Solution Approach 1:
The network device pre-configures multiple reference signal resource sets (first downlink reference signal resource set and first uplink reference signal resource set) before beam training operations. This preliminary configuration enables the terminal to perform comprehensive beam pair training across multiple antenna panels without requiring dynamic signaling during the training process, balancing capability with overhead
Data Source
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AI summary
This application discloses a beam pair training method and a communication apparatus. The method includes: receiving configuration information sent by a network device, where the configuration information is used to configure a downlink reference signal resource set and a first uplink reference signal resource set associated with the downlink reference signal resource set; measuring, based on the downlink reference signal resource set by using a first antenna panel of a terminal device, a downlink reference signal sent by the network device; and sending a first uplink reference signal to the network device based on the first uplink reference signal resource set by using a second antenna panel of the terminal device, where the first antenna panel is different from the second antenna panel. Based on the solution provided in this application, a simultaneous-reception beam pair or a simultaneous-transmission beam pair including beams generated by different antenna panels of the terminal device can be obtained through training.