Wireless Channel Time Allocation for Coordinated Device Training
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Solution Overview
Problem
Current wireless communication systems, particularly in millimeter-wave networks, face challenges in efficiently managing channel access and device training across different devices and networks, leading to interoperability issues and suboptimal data transmission.
Innovation Solution
A method and apparatus for transmitting channel time allocation requests and training packets between devices, utilizing a list of devices to be trained, and receiving channel allocations, which enables efficient channel access and training within the allocated time, facilitating improved interoperability and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If channel access is managed without structured time allocation, then devices can access the channel freely, but channel access efficiency deteriorates due to collisions and interference
Solution Approach 1:
The system performs preliminary channel assessment and time allocation before actual data transmission. Devices submit channel access requests and receive allocated time slots in advance, preventing channel collisions and improving access efficiency without requiring devices to wait during contention phases.
Solution Approach 2:
The channel access process is segmented into distinct phases: channel assessment phase, time allocation phase, and data transmission phase. This segmentation allows systematic management of channel resources and reduces unnecessary contention by clearly defining when devices should assess the channel versus when they should transmit.
2Reliability
If device training is performed without coordinated time allocation, then all devices can train simultaneously, but training effectiveness deteriorates due to mutual interference
Solution Approach 1:
The system allocates dedicated training time slots to individual devices before their respective training operations begin. This preliminary scheduling ensures that each device receives interference-free training periods, improving training effectiveness without requiring all devices to train simultaneously in contested conditions.
Solution Approach 2:
Each device is assigned a specific time slot with tailored characteristics suitable for its training requirements. This localized time allocation ensures that training operations occur in isolated, interference-free environments rather than attempting simultaneous universal training that would create mutual interference.
3Adaptability or versatility
If interoperability is enhanced through common mode support, then compatibility between different devices improves, but system complexity increases due to dual-mode requirements
Solution Approach 1:
The system implements a universal common mode that functions as a baseline for all devices regardless of their capabilities. Both single-carrier and OFDM devices can operate in this common mode for basic communications, while more capable devices can optionally use their advanced modes. This multi-functionality approach enables interoperability without requiring all devices to implement complex dual-mode transceivers.
Data Source
AI summary
A method of wireless communications is provided. The method includes transmitting a channel time allocation request from a first device to a second device, wherein the channel time allocation request comprises a list of devices to be trained by the first device; receiving a channel time allocation granted by the second device; and transmitting, from the first device, at least one training packet to at least one device in the list of devices to be trained during the channel time allocation granted by the second device. An apparatus for performing the method is also disclosed.