The present invention relates to communication via a series of bidirectional frames. A communication device is configured to communicate according to a protocol in which data is communicated via a series of frames, and every frame comprises: a downlink portion for transmissions by the communication device, said downlink portion comprising a control portion; and an uplink portion for transmissions to the communication device; and the duration of each frame is greater than one second.

Communication apparatus is disclosed which is suitable for communicating with a mobile communication device in a communication system which uses a plurality of radio frames wherein each radio frame is subdivided in the time domain into a plurality of subframes, each subframe is subdivided in the time domain into a plurality of slots, and each slot is subdivided in the time domain into a plurality of symbols. The communication apparatus operates a communication cell, generates discovery signals, for use in a cell search procedure, each discovery signal comprising a pair of synchronization signals and a further signal, and transmits each synchronization signal and the further signal in a respective symbol of a radio frame. The symbol in which the further signal is transmitted separated, in the time domain, by no more than half a radio frame from at least one of said pair of synchronization signals.

A data transmission method, a data transmission system, a control method, a control system, and a device having a base station function are provided. The control method includes: setting, in a frame structure in a time division duplex mode, a downlink channel detection sub-frame used for periodically detecting whether a downlink channel of an unlicensed frequency band is idle; and sending an uplink channel detection sub-frame configuration command to a terminal according to a configuration mode of the downlink channel detection sub-frame, so that the terminal sets, in the frame structure according to the uplink channel detection sub-frame configuration command, an uplink channel detection sub-frame used for periodically detecting whether an uplink channel of the unlicensed frequency band is idle.

The technology disclosed provides the ability for a subframe to be configured as a “flexible” subframe. As a result, at least three different types of subframes in a TDD system may be configured: a downlink (“DL”) subframe, an uplink (“UL”) subframe, and a “flexible” subframe. While the DL and UL subframes are preconfigured for each frame instance, the flexible subframes are dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another instance of the frame.

A wireless communication device includes a polarity setting module configured to set a plurality of polarity modes for the wireless communication with the plurality of external devices. The plurality of polarity modes includes selected ones of at least: a first polarity mode, and a second polarity mode. The polarity setting module sets the plurality of polarity modes based on information received from the plurality of external devices. A framing module is configured to generate data for transmission to the plurality of external devices based on the plurality of polarity modes set by the polarity setting module.

A system is provided that includes a control panel having first and second wireless transceivers, a beacon processor of the control panel that transmits a beacon through the first wireless transceiver, wherein the beacon defines a repeating superframe having a first time period and a second time period, a plurality of wireless devices that exchange messages with the control panel within a respective TDMA slots of the repeating superframe, and an access processor within the control panel that dynamically adjusts relative sizes of the first and second time periods to reduce or exclude WiFi access by portable user devices based upon a status of the plurality of wireless devicess wherein use of the second time period is polymorphic under IEEE 802.11 and IEEE 802.15A protocols, and wherein relative priorities of the first and second time periods are inverted during transmissions between the control panel and other devices of the control panel.

Provided are information interaction methods, devices and system for a Wireless Body Area Network (WBAN). The method includes that: a Hub sends beacon frames to nodes according to a preset superframe structure and receives, according to a preset superframe structure, information sent by the nodes. The preset superframe structure includes three phases. The first phase includes a first beacon period, a first timeslot period and a second timeslot period, the first timeslot period being used by nodes to send an emergency service and the second timeslot period being used by nodes to send an ordinary service. The second phase includes a second beacon period and a third timeslot period, the third timeslot period being used by nodes to complementarily send a service. The third phase includes a fourth timeslot period, the fourth timeslot period being used by nodes to send a sleep application and/or an access application.

Facilitating frame structure coordination in wireless communication systems with integrated access and backhaul links in advanced networks (e.g., 4G, 5G, and beyond) is provided herein. Operations of a system can comprise facilitating a first configuration of a first group of flexible symbols and facilitating a second configuration of a first pattern defined for an uplink transmission. Further, the operations can comprise facilitating a third configuration of a second pattern defined for a downlink transmission and facilitating a fourth configuration of a second group of flexible symbols. Flexible symbols can be symbols within a slot that are not defined as uplink symbols or downlink symbols.

Wireless-conferencing radios communicate directly with each other without a base station using a multiple access protocol, such as Time Division Multiple Access (TDMA).

A method of mapping control information in a wireless communication system is disclosed (FIG. 5). The method includes forming a subframe (FIG. 3) having a bandwidth and having plural regions (302-306). A base station (eNB) determines a communication mode with a remote user equipment. The base station maps control information specific to the user equipment into a first region of the subframe (508). The base station also maps control information common to plural user equipments into a second region of the subframe (512). The subframe is transmitted to the plural user equipments (412, FIG. 4).