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. A station comprising:
circuitry which, in operation, controls an operation of the station in a wake-up radio (WUR) mode to alternate between a WUR awake state and a WUR doze state; and
a receiver which, when the station is in the WUR awake state, receives a WUR wake-up frame, and, when the station is in the WUR doze state, does not receive the WUR wake-up frame;
wherein,
in response to the receiver receiving the WUR wake-up frame, the circuitry finishes the operation of the station in the WUR mode and follows a power save (PS) operation; and
the circuitry, without receiving the WUR wake-up frame, finishes the operation of the station in the WUR mode by transmitting a management frame indicating a finish of the operation.
2. The station according to claim 1 , wherein in response to the receiver receiving the WUR wake-up frame, the circuitry elicits a transmission of buffered data from an access point (AP) in the PS operation.
3. The station according to claim 2 , wherein the circuitry generates a PS poll frame which elicits the transmission of the buffered data from the AP in the PS operation.
4. The station according to claim 1 , wherein the WUR wake-up frame includes an indication of group addressed buffered data.
5. The station according to claim 1 , wherein the WUR wake-up frame includes an indication of individually addressed buffered data.
6. The station according to claim 1 , wherein in response to the receiver receiving a frame indicating that more data is not buffered for the station at an access point (AP) in the PS operation, the station enters a doze state.
7. The station according to claim 1 , comprising:
a transmitter which, in operation, transmits a frame;
wherein in response to the transmitter, in the PS operation, transmitting the frame indicating that more data is not buffered at the station, the station enters a doze state.
8. A communication method implemented by a station, the communication method comprising:
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; and
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.
9. The communication method according to claim 8 , comprising:
eliciting a transmission of buffered data from an access point (AP) in the PS operation after the WUR wake-up frame is received.
10. The communication method according to claim 9 , comprising:
generating a PS poll frame which elicits the transmission of the buffered data from the AP in the PS operation.
11. The communication method according to claim 8 ,
wherein the WUR wake-up frame includes an indication of group addressed buffered data.
12. The communication method according to claim 8 ,
wherein the WUR wake-up frame includes an indication of individually addressed buffered data.
13. The communication method according to claim 8 , wherein in response to receiving a frame indicating that more data is not buffered for the station at an access point (AP) in the PS operation, the station enters a doze state.
14. The communication method according to claim 8 , comprising:
transmitting a frame;
wherein when transmitting the frame indicating that more data is not buffered at the station in the PS operation, the station enters a doze state.