Method for sending data and wireless transmission equipment

Abstract

The invention embodiment provides a method for sending data, which is used for improving the competitive fairness of channels. In a transmission opportunity (TXOP), the method comprises that a candidate control frame is sent to a candidate terminal (STA, station) equipment, wherein the candidate control frame consists of an associated sign of the candidate STA and a media access control (MAC) address; a data frame is sent to a first-choice STA, wherein the data frame also comprises a sign for allowing to enter a sleep state, and the first-choice STA is an objective STA corresponding to the TXOP; after the data frame is sent to the first-choice STA, the first-choice STA enters a sleep state according to the sleep state sign; after the data frame is sent to the first-choice STA, the data frame is sent to a candidate STA according to the associated sign of the candidate STA and the MAC address. In addition, the embodiment of the invention also provides wireless transmission equipment.

Description

technical field [0001] Embodiments of the present invention relate to wireless communication technologies, and in particular to a method for sending data in a power saving mode and a terminal station (Station, STA for short) device. Background technique [0002] For a multiple-input multiple-output (MIMO for short) wireless communication system, in a transmission opportunity (Transmit Opportunity, TXOP for short), not all in a Basic Service Set (BSS for short) All STA devices need to receive data. Therefore, a power saving method is adopted in a wireless communication system to allow STA devices that do not receive data in a current TXOP to enter a sleep state. The STA device in the sleep state turns off its own receiver, thereby reducing power consumption. [0003] At present, the power saving method of the wireless communication system includes TXOP power saving, specifically: the AP device sends an operation object identifier and a prohibition of TXOP power saving indic...

AI Technical Summary

Problems solved by technology

[0006] If the above-mentioned TXOP power saving and TXOP truncation coexist, it will bring fairness problems: Assume that the AP uses TXOP truncation, and sends a CF end frame to end a TXOP in advance

Many STAs that support TXOP power saving have entered the sleep state and will turn to the awake state after the end of the TXOP. Therefore, when the AP sends a CF end frame, these STAs are in the sleep state and cannot receive the frame, so they do not know that the TXOP has been completed. Early end; Correspondingly, these STAs cannot start to compete for the channel after receiving the CF end frame, but must wait until the end of the original TXOP before starting to compete for the channel after certain events occur according to the mechanism of the existing technology , which greatly reduces the probability of these STAs competing for the channel. Compared with STAs that do not support TXOP power saving, the fairness of channel competition is affected

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