H04W84/20

Synchronizing playback by media playback devices

Example systems, apparatus, and methods receive audio information including a plurality of frames from a source device, wherein each frame of the plurality of frames includes one or more audio samples and a time stamp indicating when to play the one or more audio samples of the respective frame. In an example, the time stamp is updated for each of the plurality of frames using a time differential value determined between clock information received from the source device and clock information associated with the device. The updated time stamp is stored for each of the plurality of frames, and the audio information is output based on the plurality of frames and associated updated time stamps. A number of samples per frame to be output is adjusted based on a comparison between the updated time stamp for the frame and a predicted time value for play back of the frame.

Secure key exchange mechanism in a wireless communication system

Security features for a wireless communications system including encryption and decryption of communications, secure key exchange, secure pairing, and secure re-pairing are provided. The encryption/decryption mechanism uses AES-256 block cypher with counter mode to generate blocks of cypher bits used to encrypt and decrypt communications between a master and devices. Session keys are generated using a random salt and a counter value. The random salt is generated using a secure random number generator. A master key (or device key) is also used in generating session keys. Impermanent session keys are used to encrypt/decrypt finite amount of data. Thereafter, the session key is replaced and cypher bits are generated using the new session key. A synchronized key jump procedure ensures that the master and device switch to the new session key at the same time.

PASSIVE ENTRY PASSIVE START SYSTEM AND METHOD, AND VEHICLE

The invention relates to a passive entry passive start system and method, and a vehicle. The system includes a vehicle and a mobile terminal, where the vehicle includes: a plurality of sensors configured to interact with the mobile terminal to acquire service-related data, each sensor having a master-slave integration function in which the sensor is able to be a master node or a slave node; a central module configured to perform data exchange with the sensors, and generate a corresponding control instruction based on the service-related data received from the sensors, and configured to designate one sensor in the plurality of sensors as a master node and the other sensors and the central module as slave nodes, or designate the central module itself as a master node and the plurality of sensors as slave nodes, where the master node implements data exchange with the slave nodes; and a controller configured to receive the control instruction from the central module and execute a corresponding control action according to the control instruction. According to the invention, separation between hardware and software can be implemented, and development flexibility can be enhanced.

Plurality of vehicles performing platoon travelling and control apparatus for controlling the same

A control apparatus that controls a plurality of vehicles performing platoon travelling is provided. Each of the vehicles is provided with an inter-vehicle communication apparatus that performs an inter-vehicle communication with an other vehicle included in a column of the platoon travelling. At least some of the vehicles is provided with an external communication apparatus that performs an external communication based on own identification information given by a telecommunication company. The control apparatus is configured to control respective vehicles such that the number of vehicles capable of simultaneously performing the external communication is less than the number of vehicles included in the column.

Delaying rendering time for audio computing systems

A first audio computing system to establish a connection with an audio source within a first network, establish a connection with a second audio computing system within a second network, receive, from the audio source via the connection within the first network, a first audio packet, the first audio packet including audio data, receive, from the second audio computing system, a receipt time, the receipt time indicating when the second audio computing system received, from the audio source within the first network, a second audio packet, the second audio packet including the audio data included in the first audio packet, calculate a rendering time based on a time of receiving the first audio packet and the receipt time, send the rendering time to the second audio computing system via the second network, and output audio based on the audio data.

Method and apparatus for improving communication efficiency of internet of things devices

A system and method for reducing wireless traffic among a plurality of IoT devices and an access point is disclosed. The method and system may establish communication among a plurality of Internet of Things (IOT) devices and establish a set of similar IoT devices from among the plurality of IoT devices. One of the similar IoT devices may be designated as a managing IoT device and the remaining IoT devices in set of similar IoT devices may be designated as controlled IoT devices. Wireless traffic from the access point may be transmitted through the managing IoT device to controlled IoT devices. Wireless traffic from the controlled IoT devices may be transmitted to the access point through the managing IoT device. Thus, wireless traffic between the access point and controlled IoT devices is reduced.

Method and apparatus for improving communication efficiency of internet of things devices

A system and method for reducing wireless traffic among a plurality of IoT devices and an access point is disclosed. The method and system may establish communication among a plurality of Internet of Things (IOT) devices and establish a set of similar IoT devices from among the plurality of IoT devices. One of the similar IoT devices may be designated as a managing IoT device and the remaining IoT devices in set of similar IoT devices may be designated as controlled IoT devices. Wireless traffic from the access point may be transmitted through the managing IoT device to controlled IoT devices. Wireless traffic from the controlled IoT devices may be transmitted to the access point through the managing IoT device. Thus, wireless traffic between the access point and controlled IoT devices is reduced.

NODE CONFIGURATION AND SELF-HEALING FOR AD HOC NETWORKS
20230105352 · 2023-04-06 ·

A network includes at least one node to communicate with at least one other node via a wireless network protocol. The node includes a network configuration module to periodically switch a current node function of the node between an intermediate node function and a leaf node function. The switch of the current node function enables automatic reconfiguration of the wireless network based on detected communications between the at least one node and at least one intermediate node or at least one leaf node via the wireless network protocol.

RESILIENT MOBILE MESHED NETWORK WITH EXTENDED RANGE

Various embodiments comprise systems, methods, architectures, mechanisms or apparatus configured to provide ad hoc, peer to peer communications among a plurality of wireless devices, wherein at least one wireless device is selected to further communicate with a wireless network to provide thereby backhaul services to other wireless devices, wherein the at least one wireless device providing backhaul services is dynamically selected in accordance with respective wireless network signal strength indicia.

CHANNEL SWITCHING FOR C-OFDMA TRANSMISSION IN MULTI-AP SYSTEM

The present disclosure is related to a sharing access point (AP) and a shared AP in a wireless Local Area Network (LAN). A method performed by the sharing AP may comprise the steps of: allocating a first channel to first and second stations (STAs), wherein the shared AP is associated with the first and second STAs; receiving, from a sharing AP, an allocation of a second channel for transmission of coordinated orthogonal frequency division multiplexing access (C-OFDMA); and transmitting a channel switching signal that requests channel switching from the first channel to the second channel, wherein the channel switching signal is only transmitted to the first STA participating in the C-OFDMA, but not to the second STA not participating in the C-OFDMA.