Wireless Communication Device Backoff Optimization

The patent applies partial action by selectively inquiring only about specific terminals that are candidates for UL-MU-MIMO transmission, rather than inquiring about all connected terminals. This reduces the overhead and time loss while still achieving reliable selection of terminals with uplink data. The AP determines a first number of terminals to inquire about based on the maximum number of streams, and only sends inquiry frames to that many terminals.

The patent applies dynamics by making the number of inquiry frames adaptive rather than fixed. The AP dynamically determines the first number of terminals to inquire about based on the maximum number of streams and other factors. This allows the system to handle a larger number of selectable terminals when needed while reducing overhead when fewer terminals are available or needed, achieving both adaptability and efficiency.

The patent applies parameter changes by modifying the number of inquiry frames sent based on system conditions such as the maximum number of streams. Instead of always sending inquiry frames to all terminals, the AP adjusts this parameter dynamically. This reduces resource wastage while maintaining sufficient precision for selecting optimal terminals by inquiring about the appropriate number of candidates.