Patent ID: 9668214
Date: 2017-05-30
CPC Classifications: H04W,Y02D

Claim:
1. A method for acquiring data by a station (STA) in a wireless local area network, for acquiring data by the STA from an access point (AP) which it accesses, comprising: transmitting, by the STA, a PS-Poll, and receiving downlink data returned by the AP upon receipt of the PS-Poll, in a reserved time period within a current beacon interval according to a traffic indication map (TIM) contained in a beacon, after learning that the AP has the downlink data of the STA according to the received beacon, wherein the reserved time period is a period of time interval within the beacon interval; retransmitting, by the STA, the PS-Poll after the reserved time period to acquire the downlink data, if the STA can not successfully receive the downlink data within the reserved time period.