| 摘要 |
A wireless device switching (or desiring to switch) from a first mode of operation to a second mode, e.g. power saving modes, transmits information relating to at least one operational parameter of the second mode, e.g. the battery level of the device. In one embodiment the device transmits the information as part of a message containing data if the device has data to send, otherwise a separate message is transmitted. In another embodiment, the information is transmitted in a header of a message containing data (figure 5), e.g. in a Frame Control field of the header, or as part of the data payload of a message. Other examples of the information include whether the device decodes a Traffic Indication Map (TIM), listen interval parameters and group information. The device may operate in accordance with the IEEE 802.11ah standard. |
