Beamforming Training Frame Structure for Concurrent Payload Exchange
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Solution Overview
Problem
Beamforming training in wireless communications at higher frequencies, such as 60 GHz, is inefficient as it typically occurs in a dedicated interval, disrupting payload data exchange and being susceptible to interference.
Innovation Solution
A method and apparatus for beamforming refinement using frames, where a wireless communication device generates a frame with header data and beamforming data organized into units of beamforming training fields, using different antenna settings for each type of field, allowing for continuous transmission during payload data exchange and adaptive antenna adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If beamforming training is performed in a dedicated training interval, then beamforming precision is improved, but communication efficiency deteriorates due to interruption of payload data exchange
Solution Approach 1:
The patent merges beamforming training fields with payload data frames, allowing both functions to be performed simultaneously in a single transmission. The training fields are embedded within the data frame structure, eliminating the need for separate dedicated training intervals and enabling concurrent payload exchange.
Solution Approach 2:
The patent enables continuous transmission by integrating beamforming training into the ongoing data exchange process. Instead of interrupting payload transmission for separate training sessions, the training fields are embedded within the continuous data stream, maintaining uninterrupted communication flow.
2Measurement precision
If beamforming training occurs in a dedicated interval, then beamforming precision is improved, but susceptibility to interference worsens due to extended exposure time
Solution Approach 1:
By embedding training fields within continuous data frames rather than using separate dedicated intervals, the training transmission is integrated into the ongoing communication flow. This reduces the exposure time to interference while maintaining training effectiveness through the structured field organization.
3Adaptability or versatility
If multiple types of TRN fields are transmitted with different antenna settings, then beamforming adaptability is improved, but device complexity increases due to multiple configuration parameters
Solution Approach 1:
The patent segments TRN fields into different types (first type with same antenna settings as header, second type with different antenna settings) organized in a structured format. Each segment serves a specific beamforming function, allowing systematic management of multiple configurations through organized field units with defined parameters P, M, and N.
Solution Approach 2:
Different portions of the TRN frame use different antenna settings appropriately - the first type of TRN fields use the same antenna settings as the header data for consistency, while the second type uses different antenna settings for beam refinement. This local differentiation optimizes beamforming performance without requiring global reconfiguration.
4Productivity
If beamforming training is integrated with payload data exchange, then communication efficiency is improved, but measurement precision may worsen due to combined transmission
Solution Approach 1:
The patent segments the transmission into distinct header data, payload data, and beamforming data portions with clearly defined boundaries. The TRN fields are organized in specific units with structured formatting, allowing the receiver to accurately identify and measure training fields despite their integration within the data frame, thereby maintaining measurement precision while achieving communication efficiency.
Data Source
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AI summary
A method and apparatus for beamforming training using frames is provided. A device generates a frame comprising header data and beamforming data. The beamforming data is organized into units of beamforming training (TRN) fields. The header data comprises numbers indicating: a first type of TRN fields in each of the units of the beamforming data, to be transmitted using same antenna settings used for the header data; a second type of TRN fields in each of the units to be transmitted using different antenna settings than used for the header data; and how the first type of TRN fields are organized into respective groups of the second type of TRN fields in each of the units that are to be consecutively transmitted using same respective antenna settings, the respective antenna settings changing with each successive group of the third number of the second type of TRN fields.