SU-MIMO Control Trailer for Millimeter-Wave Channel Access
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Solution Overview
Problem
Existing wireless communication systems in the millimeter-wave band face challenges in efficiently communicating Single-User (SU) Multiple-Input-Multiple-Output (MIMO) transmissions, particularly in establishing and maintaining SU-MIMO channels effectively.
Innovation Solution
The system employs a method for communicating SU-MIMO transmissions by using a control trailer in protocol data units (PPDUs) to manage antenna configurations and transmission modes, ensuring efficient channel access and data transmission over directional multi-gigabit (DMG) channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional wireless communication protocols are used in millimeter-wave band, then basic communication functionality is maintained, but SU-MIMO transmission efficiency and data transmission rates are insufficient
Solution Approach 1:
The protocol data unit is divided into a header portion and a trailer portion, with the trailer containing specific control fields for SU-MIMO operations. This segmentation allows dedicated control mechanisms for MIMO channel management while maintaining overall protocol functionality.
Solution Approach 2:
The system dynamically switches between different transmission modes (SU-MIMO, non-SU-MIMO) based on channel conditions and device capabilities. The control trailer enables flexible mode indication and switching, optimizing data transmission rates while maintaining reliable connection establishment.
2Productivity
If SU-MIMO transmission modes are implemented, then data transmission rates are enhanced, but device complexity and protocol management complexity increase
Solution Approach 1:
The control trailer structure serves multiple functions: indicating SU-MIMO mode, specifying antenna configurations, and enabling transmission parameter control. This multi-functionality reduces the need for separate control mechanisms, thereby managing complexity while enhancing network capacity.
Solution Approach 2:
The system uses parameter fields in the control trailer to dynamically configure antenna settings and transmission modes. By changing parameters rather than restructuring the entire protocol, the system enhances network capacity while keeping device complexity manageable.
3Productivity
If antenna configurations are optimized for SU-MIMO, then transmission efficiency improves, but system complexity and configuration management difficulty increase
Solution Approach 1:
The control trailer enables devices to autonomously configure and indicate their antenna settings and SU-MIMO capabilities. This self-service approach allows optimization of transmission efficiency while reducing the operational burden on network management systems.
Solution Approach 2:
The protocol includes feedback mechanisms where devices indicate their SU-MIMO capability and antenna configuration status through the control trailer. This feedback enables dynamic optimization of transmission efficiency while simplifying configuration management through automated negotiation.
Data Source
AI summary
Some demonstrative embodiments include apparatuses, systems and/or methods of communicating a Single-User (SU) Multiple-Input-Multiple-Output (MIMO) transmission. For example, a first wireless communication station may be configured to transmit a Request to Send (RTS) to a second wireless communication station via a plurality of SU MIMO Transmit (Tx) sectors of the first wireless communication station, the RTS to establish a Transmit Opportunity (TXOP) to transmit an SU-MIMO transmission to the second wireless communication station, a control trailer of the RTS including an indication of an intent to transmit the SU-MIMO transmission to the second wireless communication station; and to transmit the SU-MIMO transmission to the second wireless communication station, upon receipt of a Clear to Send (CTS) from the second wireless communication station indicating that the second wireless communication station is ready to receive the SU-MIMO transmission.