Abstract:
A communication device and a communication scheme judgment method that enable reception of frames of different communication schemes without setting a common synchronization signal in the frames for each communication scheme. A signal including synchronization information corresponding to a communication scheme is receivable via a frequency band within which a frequency band of a channel corresponding to a first communication scheme overlaps with at least a portion of a frequency band of a channel corresponding to a second communication scheme. Using the synchronization information, when synchronization of one communication scheme out of the first communication scheme and the second communication scheme is establishable, processing of the signal is performed using the one communication scheme, and when the synchronization of the one communication scheme is not establishable and synchronization of the other communication scheme is establishable, processing of the signal is performed using the other communication scheme.
Abstract:
A network in which two or more communication schemes coexist, in which a wireless control device identifies a communication scheme of a frame transmitted by a wireless terminal device, making reception possible. The wireless control device, upon detecting a receive signal strength of receive data, determines a signal strength at a non-overlapping frequency band of each communication scheme and thereby judges the communication scheme of the receive data.
Abstract:
A control device includes: a receiving unit that receives a first beacon request for performing registration processing from a communication terminal device; a detection unit that detects a control signal indicating a request for starting the registration processing; a registration control unit that starts the registration processing when the detection unit detects the control signal and executes the registration processing for a certain period; and a transmission control unit that: transmits the beacon signal when the receiving unit receives the first beacon request in a period during which the registration control unit is executing the registration processing; and avoids transmitting the beacon signal when the first beacon request is received in a period during which the registration control unit is not executing the registration processing.
Abstract:
A communication device and a communication scheme judgment method that enable reception of frames of different communication schemes without setting a common synchronization signal in the frames for each communication scheme. A signal including synchronization information corresponding to a communication scheme is receivable via a frequency band within which a frequency band of a channel corresponding to a first communication scheme overlaps with at least a portion of a frequency band of a channel corresponding to a second communication scheme. Using the synchronization information, when synchronization of one communication scheme out of the first communication scheme and the second communication scheme is establishable, processing of the signal is performed using the one communication scheme, and when the synchronization of the one communication scheme is not establishable and synchronization of the other communication scheme is establishable, processing of the signal is performed using the other communication scheme.
Abstract:
A receiver includes a first detector that detects a Received Signal Strength Indicator of a desiring signal wave transmitted from a transmitter, a second detector that detects a power of interfering wave generated by an external device, a transmission rate selection processor that selects a transmission rate, which is used to transmit a signal from the transmitter to the receiver, from among a plurality of transmission rates based on the detected Received Signal Strength Indicator of the desiring signal wave and a detected power of the interfering wave, when the second detector detects generation of the interfering wave, and a transmission rate notificator that notifies the transmitter of the transmission rate selected by the transmission rate selection processor.
Abstract:
A network in which two or more communication schemes coexist, in which a wireless control device identifies a communication scheme of a frame transmitted by a wireless terminal device, making reception possible. The wireless control device, upon detecting a receive signal strength of receive data, determines a signal strength at a non-overlapping frequency band of each communication scheme and thereby judges the communication scheme of the receive data.