Non-Legacy Training Sequence Alignment in Multi-Link Frames
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Solution Overview
Problem
Existing multi-link communication systems experience significant interference between multiple links due to energy leakage, which hinders efficient data transmission.
Innovation Solution
Aligning the boundaries of frames on different links by synchronizing the start and end times of non-legacy long training sequences and user information fields, and using aligned backoff parameters to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-link communication is used to increase bandwidth and throughput, then data transmission capacity is improved, but interference between links increases due to energy leakage
Solution Approach 1:
The patent segments the transmission timeline into distinct slots for different links, with each link transmitting in its designated time slot. This temporal segmentation prevents simultaneous transmissions that cause interference, while still achieving high throughput through coordinated multi-link operation.
Solution Approach 2:
The patent implements periodic time slot allocation where links transmit in alternating or scheduled intervals. This periodic structure ensures that interfering transmissions are separated in time, reducing energy leakage interference while maintaining overall system throughput through systematic resource utilization.
2Productivity
If frames are transmitted simultaneously on multiple links, then communication efficiency is improved, but timing misalignment causes increased interference
Solution Approach 1:
The patent performs preliminary timing alignment by calculating and applying appropriate delays or advances to frame transmissions on each link. This preliminary adjustment ensures that frames are properly synchronized before transmission begins, preventing interference caused by timing misalignment while maintaining communication efficiency.
Solution Approach 2:
The patent implements feedback mechanisms where transmission timing information is monitored and adjusted based on received signals from other links. This feedback loop enables dynamic timing synchronization, reducing interference from misalignment while preserving the benefits of simultaneous multi-link operation.
Data Source
AI summary
This application relates to the field of communication technologies, and discloses example communication methods and apparatuses. One example method is used with a first multi-link device. The first multi-link sends a first frame on a first link, where the first frame includes a first field, and the first field is used to carry a first-type non-legacy long training sequence. The first multi-link device sends a second frame on a second link, where the second frame includes a second field, and the second field is used to carry a second-type non-legacy long training sequence. A start time of the first field is aligned with a start time of the second field, and an end time of the first field is aligned with an end time of the second field, that is, a boundary of the first field is aligned with a boundary of the second field.