4 results about "Piconet" patented technology

Disclosed are techniques to setup and use a BLE based wireless network between central devices of multiple piconets to exchange information to coordinate air-time usage by the piconets of the central devices. The information exchanged may include channel maps that indicate frequency channels that are available for use by the respective piconets, slot availability masks that indicate future air-time slots for use by the respective piconets based on a common time reference, and other meta information used to coordinate regulation of air-time usage. The multiple central devices may collaboratively regulate their respective air-time usage based on the exchanged information to reduce the potential for air-time clash. In one aspect, the central devices may use the periodic advertising with response (PAwR) protocol in BLE to exchange future air-time usage information. The timing of periodic advertising packets may provide a time reference for the multiple central devices to coordinate their air-time usage.

The application belongs to the field of Bluetooth communication, and particularly relates to a soft and hard combined Bluetooth function test method and system. The system comprises a test control module, a Bluetooth device under test, and one or more auxiliary Bluetooth devices. The test control module comprises a test script unit and a verification unit. The test script unit simulates an application program of the Bluetooth device under test, and interacts with a host of the Bluetooth device under test through a virtual serial port or a socket interface. The verification unit extracts information of the Bluetooth device under test and / or the auxiliary Bluetooth devices to verify the correctness of a flow, and is unidirectionally connected to the host of the Bluetooth device under test and / or the host of the auxiliary Bluetooth devices through the virtual serial port or the socket interface. The application takes multiple Bluetooth devices paired to form a piconet as test objects, and uses the auxiliary Bluetooth devices to help the Bluetooth device under test complete the function test, thereby improving the accuracy of test effect.

The embodiment of the application discloses a kind of synchronous method, apparatus and related equipment of bluetooth wireless device, the method includes after the first piconet is accessed by bluetooth wireless device as slave device, the fixed clock of the first piconet is obtained;First preset time T1 and second preset time T2 are obtained, and first clock offset value is calculated according to the first preset time T1 and second preset time T2;Then the clock offset value of the local clock of the bluetooth wireless device and the fixed clock is adjusted to the first clock offset value, and the local clock of the bluetooth wireless device is synchronously adjusted, to realize the synchronization of the bluetooth wireless device and the first piconet, whereby, the time loss of piconet switching can be reduced, and the efficiency of data transceiving is improved.

A method and apparatus for precision blocking in Bluetooth target piconets is described. A Bluetooth monitoring station is used to receive packets on all 79 channels simultaneously. The address codes for a set of target piconets may be received. The access codes are decoded and examined for all received packets. If a set of packets is identified from the received packets, each identified packet having an access code within the set of target access codes, a blocking transmission is sent on that same channel of the identified packet. A start time of the blocking transmission is determined based on a start time of the identified packet, and the blocking transmission is initiated at the estimated start time on the channel, so as to cause a denial of service or a service degradation to that piconet.