Patent ID: 9155043
Filing Date: 2015-10-06
Classification: H04W,Y02D

Abstract:
1. An access point comprising: a transmitter configured to transmit, to a plurality of terminals, an indication about whether the plurality of terminals are to operate in a power saving mode for a transmission opportunity duration (TXOP duration), a data stream for each terminal, TXOP information for each terminal to use to determine an operation state of the respective terminal for the TXOP duration, and a TXOP setting frame comprising information about the TXOP duration; and a processor configured to control the transmitter, wherein the TXOP duration comprises a time duration in which the access point has obtained a TXOP with respect to a channel and is allowed to transmit data streams to the plurality of terminals, wherein, in response to truncation of the TXOP duration, the transmitter does not transmit a frame to a terminal of which the operation state is changed, and wherein the TXOP setting frame comprises information about a service set or a cell in which the plurality of terminals is included and information about at least one of the terminals, and the TXOP setting frame is generated such that the TXOP setting frame is capable of being decoded by both a terminal supporting the power saving mode and a terminal not supporting the power saving mode.