A method and apparatus may be used in wireless communications. The apparatus may be an access point (AP), and may transmit a power save frame. The power save frame may include one or more Uplink (UL) Transmission Times (ULT)s. The apparatus may determine that a station (STA) did not transmit during its respective ULT. The AP may transmit another power save frame. The other power save frame may include a modified ULT. The modified ULT may be for a STA that did not transmit during its respective ULT. The other power save frame may include an unmodified ULT. The unmodified ULT may be for a STA that did not transmit.

A communication apparatus includes a transition information generation unit that generates a plurality of pieces of different transition information related to transition from a first mode in which centralized communication is performed by an access point to a second mode in which no centralized communication by an access point is performed and a frame generation unit that generates a frame containing the transition information.

A communication apparatus includes a transition information generation unit that generates a plurality of pieces of different transition information related to transition from a first mode in which centralized communication is performed by an access point to a second mode in which no centralized communication by an access point is performed and a frame generation unit that generates a frame containing the transition information.

A system and/or method involving identifying a care usage pattern of an implantable medical device (IMD) for a patient associated with the IMD, and setting a data event parameter for the IMD based on the care usage pattern.

A system and/or method involving identifying a care usage pattern of an implantable medical device (IMD) for a patient associated with the IMD, and setting a data event parameter for the IMD based on the care usage pattern.

The invention provides a random access mechanism for short feedback procedure. An AP provides a random-access NFRP trigger frame defining a random access for the stations to a plurality of RU tone sets. A non-AP station randomly selects a responding RU tone set from the plurality of RU tone sets and send a NDP feedback report response on the selected responding RU tone set. A dedicated backoff counter may be used for the purposes of contention to the random RU tone sets. A subsequent UL MU transmission can then be scheduled by the AP for the NDP responding stations. No unused RU is expected, improving the random-access network efficiency. Also, the number of non-AP stations that can be targeted by the random-access NFRP trigger frame can be easily increased.

The present application relates to a method for processing a random access procedure and a terminal device. The method is applied to a terminal device. In a non-contention random access procedure satisfying a predetermined condition, upon receipt of a random access response (RAR), if there is no data to be uplink transmitted, then no uplink transmission is performed. The embodiments of the present application are able to reduce unnecessary uplink transmission interference without affecting a random access procedure.

Implementations disclosed describe numerous techniques and systems facilitating synchronous actions in wireless networks that have a central device (CD) and multiple peripheral devices (PDs) communicating wirelessly with the CD. The CD communicates one or more messages to the PDs and various PDs determine, using communicated messages, a time of a synchronous action to be performed by the PDs. The synchronous action includes an interaction of a respective PD with one or more associated devices communicatively coupled with the PD. Upon completion of the synchronous action, the PDs may transmit data generated by the PDs, or by the one or more associated devices, in connection with the synchronous action.

A communication system includes a communication management unit, an access point, and a plurality of traveling vehicles. The access point is connected to the communication management unit. Each vehicle includes a wireless communication unit. The communication system performs wireless polling communication between the communication management unit and the plurality of traveling vehicles via the access point at each predetermined polling cycle. In the communication system, a process including a wireless communication object addition step is performed to accept a new traveling vehicle as an object of wireless communication.

A communication system includes a communication management unit, an access point, and a plurality of traveling vehicles. The access point is connected to the communication management unit. Each vehicle includes a wireless communication unit. The communication system performs wireless polling communication between the communication management unit and the plurality of traveling vehicles via the access point at each predetermined polling cycle. In the communication system, a process including a wireless communication object addition step is performed to accept a new traveling vehicle as an object of wireless communication.