Abstract: While displaying the conversation interface of an instant messaging conversation between a first user and a second user, a first client device receives a user request for generating a virtual-item-package. The first client device replaces display of the conversation interface with a virtual-item-package generation interface, including: if the request is for generating a media enhanced virtual-item-package, presenting an affordance for recording an audio and/or video message concurrently with one or more input fields for entering one or more virtual-item-package parameters in the virtual-item-package generation interface; and if the request is for generating a textual virtual-item-package, presenting a text input field for entering a textual message concurrently with the one or more input fields for entering the one or more virtual-item-package parameters, without concurrently presenting the affordance for recording an audio and/or video message in the virtual-item-package generation interface.

Abstract: The present disclosure provides a data reception method, a data transmission method, a data reception device and a data transmission device for device-to-device (D2D) communication, so as to enable a UE to receive data from a transmitting UE in the case that the UE does not know resource pool configuration information of the transmitting UE. The data reception method includes steps of: detecting control information from a transmitter using each set of locally-stored resource pool configuration information; determining resource pool configuration information used by the transmitter in accordance with the detected control information; and receiving data information from the transmitter in accordance with the determined resource pool configuration information and the control information.

Abstract: A mask includes a cover body, a first fan, a second fan and an air filter. The cover body has an air inlet and an air outlet penetrating through the cover body. The first fan is disposed on the cover body and matches the air inlet. The second fan is disposed on the cover body and matches the air outlet. The air filter is disposed on the cover body and partially overlaps the air inlet. The first fan drives an air-flow to rapidly flow from the atmosphere into the mask through the air inlet and the air filter. The air filter removes the particulates and the harmful substances in the air-flow. The second fan drives the respiratory gas to rapidly flow from the mask to the atmosphere through the air outlet. Therefore, the user is able to breathe comfortably with non-particulate and clean air.

Abstract: Disclosed are a D2D communication method and device. The method comprises: sending a. preamble on a sub-channel set of a competition region, and monitoring the preamble on the sub-channel set of the competition region; and if the preamble is not monitored on the sub-channel set of the competition region, sending data on a sub-channel set of a data region corresponding to the sub-channel set of the competition region, different sub-channel sets of the competition region corresponding to different sub-channel sets of the data region. The technical solution provided in the embodiments of the present invention can effectively avoid the resource conflict of a D2D UE. In addition, since a preamble occupies fewer resources, competing for sub-channel resources of a data region by sending a preamble could effectively reduce the overhead of resource competition.

Abstract: A data transmission method and a data transmission device are provided. A transmission device classifies data symbols for each scheduled user into groups based on logic resource element groups determined based on encoding matrices each multiplexed by multiple users, encodes respective groups of data symbols for each user in accordance with the encoding matrices to determine groups of encoded data symbols for each user, subjects respective groups of encoded data symbols for each user to a mapping treatment based on logic resource elements, maps respective logic resource element groups to a physical resource block in accordance with a mapping mode, and transmits data to a reception device based on the physical resource block.

Abstract: Embodiments of the present disclosure provide a method and a device for identifying a synchronization priority, including: determining a synchronization priority of a node according a connection relationship between the node and a Global Navigation Satellite System (GNSS) and a relative relationship between the node and a coverage scope of an eNB; configuring a synchronization sequence and an in coverage flag of the node according to the synchronization priority of the node. Combination of the synchronization sequence and the in coverage flag of the node is used to identify the synchronization priority of the node.

Abstract: Disclosed are a synchronization method and apparatus, used for implementing a specific synchronization solution when a terminal node serves as a synchronization source. The synchronization method provided in the present application comprises: determining, when synchronization signals of a plurality of nodes are received, synchronization priorities of the plurality of nodes; and selecting, according to the synchronization priorities of the plurality of nodes, a synchronization signal of one of the nodes for synchronization.

Abstract: An outlet device for hanging on a plate includes a counterweight portion, a hanging portion arranged distant from the counterweight portion, an extending portion having two ends respectively connected to the counterweight portion and the hanging portion, and a power core connected to the counterweight portion. Each of the counterweight portion and the hanging portion has an outlet unit electrically connected to the power core. The outlet device is configured so that the counterweight portion is arranged under the plate and the hanging portion is arranged on the plate, and the hanging portion remains hung on the plate by using a weight distribution of the outlet device, thereby maintaining the outlet device in a static balance state.

Abstract: Disclosed are a D2D signal detecting method and device, comprising: a user equipment determines a physical resource for discovery signal detection; the user equipment determines the number of discovery resources used by the discovery signals according to the physical resource area for discovery signal detection, or according to a discovery resource set of the discovery sequence contained in the discovery signal detected in the physical resource area, the number of discovery resources being the number of discovery resources used in one discovery period or in the physical resource area for sending the same discovery signal; the user equipment detects the discovery signals according to the determined number of discovery resources. The present invention can improve performance loss caused by D2D signal detection and can reduce the complexity of D2D signal detection by user equipment.

Abstract: Disclosed are a synchronization method and device, which are used to achieve the distinction of a synchronization system and a synchronization level of a node in a V2V communication system, thereby quickly achieving the synchronization in the V2V communication system. Provided is a synchronization method, comprising: determining a synchronization priority level of a current node; and according to the synchronization priority level of the current node, determining a synchronization sequence used by the current node and a value of a distinguishing flag bit of the current node, wherein the distinguishing flag bit is used to distinguish whether the current node belongs to a GNSS synchronization system or an eNB synchronization system.

Abstract: A method and a device for configuring and determining a code superposition-based multiuser encoding mode are provided. The configuring method includes steps of: determining, by a network device, UEs by which an identical transmission resource is to be multiplexed; and configuring, by the network device, different columns in a preconfigured encoding matrix formed through multiuser code superposition for the UEs, so as to enable each UE to transmit data in accordance with an encoding mode corresponding to the column configured by the network device, at least two columns in the encoding matrix having different diversity orders.

Abstract: Disclosed are a D2D communication method and device. The method comprises: transmitting, by a transmitting-end device, a control message in a control region of a current communication frame, the control message at least comprising resource indication information, and monitoring control messages, at least comprising the resource indication information, of other transmitting-end devices in the control region of the current communication frame, the resource indication information being used for indicating a data channel in a data region of the current communication frame occupied by the transmitting-end device; and according to the monitored resource indication information, transmitting D2D data on the data channel occupied thereby. In the technical solution provided in the embodiments of the present invention, the communication frame for D2D communications comprises a control region and a data region, wherein the data region further comprises a plurality of data channels.

Abstract: A method for controlling a rotational speed of a motor of a fan is provided in the present application, applicable to an air cleaner and including: calculating a suitable rotational speed range according to a space size of a use environment and a filter gauze type of the air cleaner; calculating a suitable rotational speed according to air quality sensed by a sensor or air quality information; subsequently, adjusting a rotational speed offset according to a relatively high or a relatively low rotational speed preferred by a user; checking whether a range at present is a timing enhancement range; determining that the rotational speed is not higher than a noise upper limit rotational speed; and setting a rotational speed of a motor of a fan.

Abstract: Disclosed in the present application is a D2D signal transmission method and device, used for enabling a UE, on the basis of the D2D parameters thereof, to determine a resource hopping pattern between different D2D transmission physical resources, and thereby obtain a plurality of D2D transmission physical resources, such that a D2D UE transmitting a D2D signal at any time in the same sub-frame can subsequently transmit a D2D signal in a different sub-frame, thus improving the overall D2D transmission performance of the system. The method provided in the present application comprises: a first UE, on the basis of pre-set D2D parameters, determines the resource hopping pattern between a plurality of D2D transmission physical resources needed to be used by the first UE; the first UE, on the basis of said resource hopping pattern, determines the plurality of D2D transmission physical resources; and the first UE sends a D2D signal on the determined plurality of D2D transmission physical resources.

Abstract: The method for estimating a service life of a filter gauze in this application is applicable to an air cleaner. The method includes: calculating a relationship between an outlet air velocity, a rotational speed, and a blocking ratio of the filter gauze; and estimating a remaining service life of the filter gauze. In this way, a user can be more accurately informed of a remaining service life of a filter gauze, and instructed to change the filter gauze at a most appropriate time.

Abstract: An outlet device for hanging on a plate includes a counterweight portion, a hanging portion arranged distant from the counterweight portion, an extending portion having two ends respectively connected to the counterweight portion and the hanging portion, and a power core connected to the counterweight portion. Each of the counterweight portion and the hanging portion has an outlet unit electrically connected to the power core. The outlet device is configured so that the counterweight portion is arranged under the plate and the hanging portion is arranged on the plate, and the hanging portion remains hung on the plate by using the weight distribution of the outlet device, thereby maintaining the outlet device in a static balance state.

Abstract: Disclosed are a method and device for transmitting a pilot signal. The method therefor comprises: conducting OFDM modulation on a pilot signal; and sending the modulated pilot signal on the first and/or the last OFDM symbol of a subframe which transmits the pilot signal. In the technical solution provided in the embodiments of the present application, the pilot signal is transmitted on the first and/or the last OFDM symbol of the subframe, thereby not occupying an OFDM symbol for transmitting a data signal, so as to reduce the resource overhead of the pilot signal.

Abstract: Disclosed are a D2D data transmission method and device. The method comprises: determining, by a D2D data sending end, a state of each sending opportunity in a sending window in the same manner as a D2D data receiving end, wherein the sending window is uniformly divided into a plurality of sending opportunities, and the state of each sending opportunity comprises a data sending state and a silent state; and sending D2D data to the D2D data receiving end in the sending opportunity of each data sending state in the sending window. By means of the technical solution provided in the embodiments of the present application, a D2D data sending end sends data on different resources (sending opportunities) or becomes silent, so that different D2D data sending ends are staggered on the resources, thereby alleviating the influence of “near-far” effects.

Abstract: Disclosed are a method, network device, and system for transmit power control during D2D communication. The method comprises: a network device determines the maximum allowed transmit power of a first terminal on the basis of the maximum level of interference that a cellular network can handle and/or the maximum level of interference that the first terminal is allowed to cause to a receiving terminal, and sends said maximum allowed transmit power of the first terminal to the first terminal, said first terminal being the sending device of D2D communication; and the first terminal determines transmit power on the basis of said maximum allowed transmit power.