EDMG BRP TXSS Aggregated Packet Beam Refinement
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Solution Overview
Problem
Current beamforming training protocols in millimeter-wave wireless communication networks are inefficient, particularly in MIMO transmissions, due to significant time overhead associated with packetized beamforming training procedures.
Innovation Solution
The implementation of a Beam Refinement Protocol (BRP) Transmit Sector Sweep (TXSS) using Enhanced Directional Multi-Gigabit (EDMG) BRP-TX packets, which enables in-packet beamforming training and reduces the time required for beamforming training by allowing multiple sectors/antenna weight vectors to be trained within a single packet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packetized beamforming training procedures are used, then beamforming training can be performed systematically, but time overhead is significantly increased
Solution Approach 1:
The patent combines multiple sector sweep operations into a single aggregated packet transmission. Instead of sending separate packets for each sector, the system aggregates multiple sector beams into one packet, allowing the receiver to process multiple sectors simultaneously and significantly reducing the time required for beamforming training while maintaining completeness.
Solution Approach 2:
The patent segments the beamforming training process by using indication fields within the aggregated packet to identify different sectors. This allows the receiver to distinguish and process multiple sectors within a single packet transmission, enabling efficient time-consuming training to be completed faster through structured organization of sector information.
2Loss of time
If multiple sectors are trained within a single packet, then time overhead is reduced, but packet structure complexity increases
Solution Approach 1:
The patent introduces indication fields as intermediary elements within the aggregated packet structure. These fields act as markers that identify and distinguish different sectors within the single packet, allowing the receiver to efficiently parse and process multiple sectors without requiring complex processing logic, thus managing packet structure complexity while enabling time-efficient training.
3Productivity
If traditional beamforming training is used, then protocol simplicity is maintained, but data transmission rates are limited
Solution Approach 1:
The patent merges multiple sector sweep operations into a single aggregated packet transmission, enabling faster beamforming training completion. This time efficiency directly improves data transmission rates by reducing the overhead time before actual data communication can begin, thereby enhancing overall network productivity in millimeter-wave wireless communication systems.
Data Source
AI summary
For example, an Enhanced Directional Multi-Gigabit (EDMG) initiator station (STA) of a Beam Refinement Protocol (BRP) Transmit (TX) Sector Sweep (SS) (TXSS) may be configured to, during an initiator BRP TXSS, transmit one or more initiator EDMG BRP-TX packets to an EDMG responder STA; during a responder BRP TXSS following the initiator BRP TXSS, to receive one or more responder EDMG BRP-TX packets from the EDMG responder STA; and to transmit to the EDMG responder STA a BRP frame including feedback based on measurements on the one or more responder EDMG BRP-TX packets.