Abstract: A polar code construction method and an apparatus. A communication apparatus obtains a reliability weight sequence, and determines a first threshold that indicates a weight of lowest reliability of a subchannel corresponding to an information bit. The communication apparatus determines a non-pre-frozen subchannel corresponding to a content value greater than or equal to the first threshold in the reliability weight sequence as the subchannel corresponding to the information bit based on the first threshold, and performs polar coding on the information bit based on the subchannel corresponding to the information bit.

Abstract: This application discloses a NB-IoT-based communication method and an apparatus, to evolve a NB-IoT communication technology into an NTN. The method is as follows: A terminal device generates an uplink signal, including a superframe which includes a synchronization sequence located in first duration of the superframe and a data frame located in second duration which is after the first duration, the synchronization sequence successively includes a first sequence repeated Ni times and a second sequence repeated N2 times, the second sequence is obtained by multiplying the first sequence by ?1, a part of consecutive sequences of the synchronization sequence are used as a first synchronization reference sequence that is obtained based on the second sequence repeated N2 times and one or more first sequences that are sorted from back to front in the first sequence repeated N1 times. The terminal device sends the uplink signal to a network device.

Abstract: A method for regulating an unmanned aerial vehicle (UAV) includes receiving a UAV identifier and one or more types of contextual information broadcasted by the UAV. The UAV identifier uniquely identifies the UAV from other UAVs. The one or more types of contextual information includes at least geographical information of the UAV. The method further includes authenticating, via an authentication device, an identity of the UAV based on the UAV identifier to determine whether the UAV is authorized for operation, and transmitting a signal to a remote device in response to determining whether the UAV is authorized for operation.

Abstract: Systems and methods for customer journey optimization in email marketing are described. The systems and methods may identify a plurality of messages for a first time period, wherein the plurality of messages are categorized according to a plurality of messages types, identify user information for a customer, wherein the user information includes user interaction data, determine a message type from the plurality of message types for the first time period based on the user information, wherein the message type is determined using a decision making model comprising a deep Q-learning neural network, select a message from the plurality of messages based on the determined message type, and transmit the message to the customer during the first time period based on the selection.

Abstract: A resource mapping method and apparatus are described that reduce resource mapping complexity. The method includes an access network device obtaining resource mapping information of at least one terminal, and sending the resource mapping information to the at least one terminal respectively. The resource mapping information indicates a resource element RE to which each of the at least one terminal performs mapping in each RMB in a first resource mapping block RMB set. An RE to which a first terminal performs mapping in each RMB in the first RMB set is determined based on a first interleaved sequence, and the first interleaved sequence is determined based on a base sequence. The first terminal is any one of the at least one terminal, and the first RMB set includes at least one RMB.

Abstract: A water outlet box of a pressure-type flushing system and a toilet using the water outlet box, including a water outlet box main body and a first one-way valve assembly. The water outlet box main body is formed with a water-passing cavity, a water inlet, at least one water outlet and a vent, with the water inlet, the water outlet and the vent all connecting with the water-passing cavity. The first one-way valve assembly is provided opposite to the water inlet to open or block the water inlet, and when the pressure-type flushing system finishes flushing, the first one-way valve assembly blocks the water inlet. The vent is provided at the top of the water-passing cavity and is open to the atmosphere. The water outlet box main body is provided with several water inlet pipes in communication with the functional devices of the pressure-type flushing system.

Abstract: Aspects of this disclosure are directed to a method and a terminal device, and a computer-readable storage medium. The terminal device includes processing circuitry that obtains n voice messages from at least one user account. n is a positive integer. The processing circuitry displays a voice message presentation interface. The voice message presentation interface is configured to display virtual characters corresponding to the n voice messages in a virtual world. Locations of the n voice messages in the virtual world are based on whether the n voice messages are unplayed. The virtual characters can be based on respective message attributes of the n voice messages.

Abstract: This application provides a communication method, apparatus, and system. The method includes: determining first information, where the first information includes one or more types of information about an associated beam for a random access success of the terminal device, or, information about an associated uplink carrier for a random access success of the terminal device, and/or includes information about a random access channel RACH resource for a random access failure of the terminal device, and the random access failure of the terminal device includes one or more of a 2-step random access failure, a 4-step random access failure, a dedicated RACH resource random access failure, or a common RACH resource random access failure; and sending the first information.

Abstract: A method performed by a first network device comprises reaching a synchronization state with a first communication device based on alignment information of a first interface of the first network device. The alignment information of the first interface includes at least one of a line rate order for line rate iteration, an iteration time interval and an iteration start time. The method further comprises determining whether a second network device has reached the synchronization state with a second communication device at a same line rate as the first interface, wherein the second network device includes a second interface, and the second network device tries to reach the synchronization state with the second communication device based on the same alignment information as the first interface of the first network device. The method further comprises locking the same line rate at the first interface of the first network device.

Abstract: The present disclosure relates to the technical field of alien invasive species control, in particular to use of 4-nitro-3-(trifluoromethyl)phenol in killing or controlling Pomacea canaliculata, a method for killing or controlling the Pomacea canaliculata, and a molluscicide. The present disclosure provides use of 4-nitro-3-(trifluoromethyl)phenol in killing or controlling Pomacea canaliculata. The 4-nitro-3-(trifluoromethyl)phenol can effectively control the Pomacea canaliculata with a low cost. In the present disclosure, the results of examples show that: the 4-nitro-3-(trifluoromethyl)phenol has an obvious killing effect on the Pomacea canaliculata, showing a control effect comparable to that of niclosamide, a commonly-used molluscicide for killing the Pomacea canaliculata.

Abstract: A lighting lamp includes a first lamp-assembly structure, at least one second lamp-assembly structure, and a control structure. The first lamp-assembly structure includes a first lamp body and a first lamp column used to scatter light generated by the first lamp body. A first end of the first lamp column is fixedly connected with a first end of the first lamp body. The second lamp-assembly structure includes a second lamp body, a first end of the second lamp body being connected to a second end of the first lamp column, and a second lamp column fixedly connected to a second end of the second lamp body and used to scatter the light generated by the second lamp body. The control structure is arranged in the first lamp body and/or the second lamp body, and is electrically connected with the first lamp body and the second lamp body.

Abstract: A communication method for data transmission in the internet of vehicles V2X and a related device. The method includes a first terminal device that receives first information from a first radio access network device, where the first information includes service information of a service of the first terminal device and a resource configuration mode on a sidelink, and there is a correspondence between the service information and the resource configuration mode on the sidelink. The first terminal device transmits, based on the correspondence, data corresponding to the service information on a sidelink transmission resource configured based on the resource configuration mode. The service information may be reliability information.

Abstract: This application provides a method for issuing a digital certificate performed by a digital certificate issuing center that includes a public-private key generation module and an authentication module. The method includes: receiving a public-private key request from a node in a blockchain network; generating a public key and a private key of the node by using the public-private key generation module, and transmitting the public and private keys to the node; receiving the public key of the node and registration information of the node, and authenticating the registration information by using the authentication module; and generating, in accordance with a determination that the authentication succeeds, a digital certificate of the node by using the authentication module, and transmitting the digital certificate to the node. The embodiments of this application can improve the probative value of an issued digital certificate, thereby improving the security of data exchange in a blockchain network.

Abstract: A camera module includes a holder, a lens in the holder, magnets disposed on an outer wall of the holder, and a circuit board assembly. The circuit board assembly includes an outer wiring substrate, and first and second inner wiring substrates spaced out on a surface of the outer wiring substrate. The first inner wiring substrate surrounds the holder and includes a first dielectric layer and a first inner wiring layer thereon. The first inner wiring layer includes coils of wound wire in the first inner wiring layer, and each of the coils corresponds to one of the magnets. The second inner wiring substrate includes a second inner wiring layer, a thickness of each of the coils is greater than a thickness of the second inner wiring layer. A method for manufacturing the camera module is also disclosed.

Abstract: A point light-source includes a housing and a light-emitting circuit packaged in the housing. The housing includes an upper housing and a lower housing, and the light-emitting circuit includes a constant-current control chip and a plurality of single-color light strings. Each single-color light string is composed of a plurality of light-emitting elements connected in series. The constant-current control chip is configured to, in response to an external serial signal, generate pulse signals transmitted to each single-color light string so as to change a luminous brightness of each single-color light string correspondingly through each of the pulse signals.

Abstract: A circuit board includes a substrate, a first circuit layer, a second circuit layer, and a third circuit layer. The substrate includes a base layer, a first metal layer formed on the base layer, and a seed layer formed on the first metal layer. The first circuit layer is located on the substrate and includes the first metal layer and a signal layer formed on a surface of the first metal layer. The second circuit layer is coupled to the first circuit layer and includes the first metal layer, the seed layer, and a connection pillar formed on a surface of the first metal layer and the seed layer. The third circuit layer is coupled to the second circuit layer and includes the seed layer and a coil formed on a surface of the seed layer.

Abstract: A lighting lamp includes a first lamp-assembly structure, at least one second lamp-assembly structure, and a control structure. The first lamp-assembly structure includes a first lamp body and a first lamp column used to scatter light generated by the first lamp body. A first end of the first lamp column is fixedly connected with a first end of the first lamp body. The second lamp-assembly structure includes a second lamp body, a first end of the second lamp body being connected to a second end of the first lamp column, and a second lamp column fixedly connected to a second end of the second lamp body and used to scatter the light generated by the second lamp body. The control structure is arranged in the first lamp body and/or the second lamp body, and is electrically connected with the first lamp body and the second lamp body.

Abstract: A buried thermistor includes a lower substrate, an upper substrate, and a number of thermistor stacks. Each thermistor stack includes two resistor subjects. Each resistor subject includes a base layer, a medium layer, a metal layer, a resistor layer, a nanometal layer, and a conductive layer. Applicable material of the resistor layer becomes more diverse by disposing the number of thermistor stacks, and the buried thermistor shows variable thermal sensitivity.

Abstract: This application discloses an image processing method and a related apparatus, to support display of an HDR image, display more dynamic ranges and image details, provide richer colors, and improve user experience. The image processing method includes: obtaining a first RGB image, where the first RGB image is an RGB image sensed by a photographing apparatus; converting the first RGB image into a second RGB image, where the second RGB image is an image meeting a BT2020 color gamut range; determining a first luminance value corresponding to the second RGB image, where the first luminance value indicates maximum luminance of each frame of image in the second RGB image; determining a target image based on the first luminance value and the second RGB image; and sending the target image to a display apparatus, so that the display apparatus displays the target image.

Abstract: Sets of asynchronous replication operations may be tracked to ensure consistency. A tracking service may receive notifications of pending asynchronous replication tasks, and responsive to receiving a manifest indicating a request to be notified upon completion of a set of pending replication asynchronous tasks, matches individual ones of the tasks within the set to tasks indicated as pending. The tracking service may then select a routing table based on a most recent sequence number associated with the set of tasks, determine one of more tracking nodes assigned to track the set of tasks, and send the manifest to each of the tracking nodes. As individual ones of the tasks complete, notifications of completion may be sent to the tracking nodes and an aggregator node aggregates the completion notifications for the set. Once all completion notifications are received, a response to the request indicating completion may be sent.