Communication apparatus and communication method
View Patent ↗A communication apparatus of the present disclosure comprises a first receiver which, in operation, receives a downlink data frame from a base station; a decoder which, in operation, decodes data included in the received downlink data frame; a signal generator which, when the decoded data indicates that there is no buffered traffic for the communication apparatus, generates an uplink frame that includes acknowledgement information and a wake-up radio (WUR) mode request indicating a request to transit to the WUR mode from a primary connectivity radio (PCR) mode; and a transmitter which, in operation, transmits the uplink frame to the base station.
1. An integrated circuit for a station, the integrated circuit comprising:
at least one input, which, in operation, receives an input; and
control circuitry, which is coupled to the at least one input and, which, in operation, performs:
controlling an operation of the station in a wake-up radio (WUR) mode to alternate between a WUR awake state and a WUR doze state;
receiving a WUR wake-up frame when the station is in the WUR awake state, and not receiving the WUR wake-up frame when the station is in the WUR doze state;
in response to receiving the WUR wake-up frame, finishing the operation of the station in the WUR mode and controlling a power save (PS) operation of the station;
without receiving the WUR wake-up frame, finishing the operation of the station in the WUR mode by transmitting a management frame indicating a finish of the operation;
generating a PS poll frame which elicits a transmission of buffered data from an access point (AP) in the PS operation after the WUR wake-up frame is received; and
eliciting the transmission of buffered data from the AP in the PS operation.
2. The integrated circuit according to claim 1 ,
wherein the WUR wake-up frame includes an indication of group addressed buffered data.
3. The integrated circuit according to claim 1 ,
wherein the WUR wake-up frame includes an indication of individually addressed buffered data.
4. The integrated circuit according to claim 1 , wherein in response to receiving a frame indicating that more data is not buffered for the station at the AP in the PS operation, the control circuitry performs controlling the station to enter a doze state.
5. The integrated circuit according to claim 1 , wherein the control circuitry, in operation, performs:
transmitting a frame indicating that more data is not buffered at the station in the PS operation, and
controlling the station to enter a doze state.