Acknowledgement, error recovery and backoff operation of uplink multi-user multiple-input-multiple-output communication in wireless networks

摘要

Wireless communication in a wireless network comprises obtaining a transmission opportunity period (TXOP) for communicating with an access point (AP) over a wireless communication channel. An announcement is sent to the AP to share the transmission opportunity period among wireless stations, as a multi-user transmission opportunity period for simultaneously transmitting data from said wireless stations to the AP on multiple uplink (UL) spatial streams over the wireless channel. Correctly received UL frames received by the AP are acknowledged. Error recovery and backoff processing are performed upon loss of communication information based on frame type.

主权项

1. A method of wireless communication, comprising:
obtaining a transmission opportunity (TXOP) period for communicating with an access point (AP) over a wireless communication channel; sending an announcement to the AP to share the TXOP period among wireless stations, as a multi-user TXOP period for simultaneously transmitting data from the wireless stations to the AP on multiple uplink (UL) spatial streams over the wireless communication channel; and performing error recovery and backoff processing upon loss of communication information based on frame type, wherein the frame type comprises an uplink transmission request (UTR) frame or an uplink transmission indication (UTI) control frame, and backoff processing comprises increasing a contention window (CW) or transmitting an additional UTI or UTR frame.