The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention provides a method and an apparatus which can achieve accurate time and frequency synchronization while reducing system load, in line with the design requirements for a 5G communication system. Particularly, the present invention provides a method for acquiring time and frequency synchronization by a terminal in a communication system, the method comprising the steps of: receiving a first synchronization signal from a base station; receiving a second synchronization signal from the base station; and receiving a channel state information-reference signal (CSI-RS) from the base station, and acquiring downlink time and frequency synchronization with the base station on the basis of the CSI-RS.

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for an internet of things (IoT) device. In some implementations, the IoT device can select an operating role for the first IoT device in a local network. The operating role may be selected from between an endpoint role and a relay role. The operating role may be dynamically selected by the first IoT device based whether the relay role would enhance connectivity for a client device that is within a wireless range of the first IoT device. The IoT device may participate in a self-organizing network (SON) and may coordinate with other devices in the SON to enhance wireless coverage for the client device based on a position of the client device relative to the one or more IoT devices.

Systems and methods for controlling a plurality of devices in a home automation system may include providing a device proxy for a device connected to the home automation system and setting a new value in a value box of the device proxy, whereby the value box corresponds to at least one of a sensor, control, and metadata of the device. The systems and methods may further include determining one or more rules associated with the device proxy and running the determined one or more rules, whereby the determined one or more rules are indicative of interactive relationships between the device proxy and one or more other device proxies corresponding to one or more other devices connected to the home automation system.

A system (11,21) is configured to identify a plurality of lighting devices (31-34) included in a entertainment group, assign a first subset (31,32) of the plurality of lighting devices to a first subgroup and a second subset (33,34) of the plurality of lighting devices to a second subgroup according to one or more grouping criteria, control, using a first communication protocol, the first subset of lighting devices to render a first subset of multiple dynamic light effects in the entertainment mode, and control, using a second communication protocol, the second subset of lighting devices to render a second subset of the multiple dynamic light effects in the entertainment mode. The first subset of lighting devices does not overlap completely with the second subset of lighting devices. At least one processor (15,25,85) of the system (11,21) is configured to determine distances between said system (11,21) and each of the plurality of lighting devices (31-34) and assign said plurality of lighting devices to said subgroups based on said distances.

A network device includes one or more memories and one or more processor circuits coupled to the one or more memories. The one or more processor circuits are configured to cause providing for transmission a request directed to a network controller to change a power state of the network device, receiving a grant from the network controller in response to the request, and changing the power state of the network device in response to receiving the grant. The power state of the network device includes a running power state and a standby power state, where the standby power state includes an active mode and an idle mode. A network controller for granting a request from the network device to change a power state of the network device is also disclosed.

An apparatus and method for controlling a Remote User Interface Server (RUIS) in a Remote User Interface Client (RUIC), wherein the method includes rendering an RUI page for controlling RUISs, receiving an input of a control command for controlling the RUISs from a user through the RUI page, generating a multicast control message for transmitting the input control command in a form of multicast, and transmitting the multicast control message to the RUISs.

In an embodiment, a data processing system comprises: a power distribution circuit that is configured to distribute electrical power to one or more network devices; a microcontroller; data transceiving logic that is configured to establish connectivity with the one or more network devices and the power distribution apparatus; receive a first data stream from a first network device; generate a combined signal by combining the first data stream with a power signal into the combined signal; one or more ports that are configured to transmit the combined signal to the one or more network devices.

Smart Phones that support wireless printing of e-mails to a printer in a wireless local area network (WLAN) is disclosed and enabled. The new Smart Phone includes a touch sensitive screen, an operating system, an e-mail application, and a wireless communication unit supporting a protocol within IEEE 802.11 for WLAN communication. To print an email in an inbox of the email application, the smart phone provides a print item on the touch sensitive screen and also a list of one or more printers detected to be available in the WLAN on the touch sensitive screen, subsequent to the user having selected the print item and a selected printer from the list, a print job related to the email is transmitted to the selected printer over the WLAN. Additionally, the smart phone further supports voice activated commands, such as printing or replying to emails received at the Smart Phone.

A redundant star network and methods for communicating over the network are disclosed. The network includes a peripheral device, a first network hub, and a second network hub. Each of the peripheral device, the first network hub, and the second network hub includes a wireless long range transceiver and at least one microcontroller. The first and second network hub microcontrollers store system operation information that includes instructions for operating the peripheral device and instructions for designating a peripheral device control hub. Additionally, the first and second network hub microcontrollers each include firmware for testing whether the other hub is operational and updating the system operation information to change the peripheral device control hub if it is non-operational. In some embodiments, the network is connected to a cloud server that communicates system updates to a user device.

In one aspect, the disclosure provides an HVAC system. In one embodiment, the HVAC system includes: (1) an air handler configured to condition and circulate air for the HVAC system, and (2) an air handler controller for the HVAC system configured to control operation of the air handler, the air handler controller including interface circuitry having a predetermined coupling impedance and configured to couple the air handler controller to components of the HVAC system via a communications network of the HVAC system, wherein a total of the predetermined coupling impedance and an end node coupling impedance at each of the components is substantially a defined maximum loading impedance for the communications network and wherein the end node coupling impedance of one of said plurality of end nodes is determined based on said predetermined coupling impedance and end node coupling impedances of remaining ones of the plurality of end nodes.