Abstract: A symbol sending method, a symbol receiving method, a sending device, a receiving device, and a storage medium are disclosed. The method for symbol transmission may include determining, N+1 transmission symbols of s0, s1, s2, . . . sN, according to a reference symbol and (M+1)*N bits, where 0, 1, 2, . . . , N denote indices of the transmission symbols, s0 denotes the reference symbol; a transmission symbol indexed n is determined according to an amplitude and a phase of a transmission symbol indexed n?1, and M+1 bits, and M is an integer greater than or equal to 1, N is an integer greater than or equal to 1, 1?n?N, n is an integer; and transmitting the N+1 transmission symbols.

Abstract: This patent application discloses methods, apparatus, and systems that relate to weighting window configuration design that can be used in ISAC or other wireless communication systems. In one example aspect, a method for wireless communication includes generating, by a first wireless device, a first signal from a sequence, generating, by the first wireless device, a second signal through an operation comprising multiplying the first signal with a plurality of weighting coefficients associated with a window function; and transmitting, by the first wireless device, the second signal.

Abstract: This patent application discloses methods, apparatus, and systems that relate to position difference-based time-frequency resource patterns for wireless sensing signals. In one example aspect, a method for wireless communication includes transmitting, by a first wireless device, a signal at N resource positions, where N is a positive integer, wherein a set of position differences generated on the N resource positions includes at least a predetermined percentage of a set {0, d, 2d, . . . , (L?1)d}, wherein L is an integer larger than N, wherein d is a unit time- or frequency-domain position differences.

Abstract: This patent document described methods, apparatus, and systems that relate to multiple sensing resource sets sand frequency layers for ISAC and other wireless communication systems. In one example aspect, a method for wireless communication includes determining, by a first wireless device, a plurality of sensing resource positions based on a configuration information indicative of at least one resource sets; and transmitting, by the first wireless device, a sensing signal at the sensing resource positions.

Abstract: Provided are an information transmission method and apparatus, a communication device, a communication node and a computer-readable storage medium. The method includes that: a communication device determines a second signal according to N bits in first information, wherein the second signal includes at least one of a preamble and a Reference Signal (RS), and N is an integer greater than or equal to 1; and the communication device sends a message A including the second signal.

Abstract: Methods, apparatus and systems for reference signal configuration in a wireless communication are disclosed. In one embodiment, a method performed by a wireless communication device is disclosed. The method comprises: generating a pilot signal occupying N symbol resources, wherein the pilot signal includes at least one most sparse reference signal (RS) port that is determined from a predetermined pool of most sparse RS ports, wherein the predetermined pool includes at least N most sparse RS ports, wherein N is an integer larger than one; and transmitting a signal comprising the pilot signal to a wireless communication node.

Abstract: Disclosed are a system and method for efficient nitrogen and carbon removal and phosphorus recovery of source-separated fresh urine by biochemical combination. The system includes a functionally zoned membrane aerated biofilm reactor for in-situ nitrogen and carbon removal, a source separation toilet, a source-separated urine storage tank, a phosphorus recovery reactor, a calcium salt solution tank, a water production tank, and a control system. The membrane aerated biofilm reactor is divided into an upper part and a lower part, a micro-aerobic environment is formed in the upper part while an anaerobic environment is formed in the lower part, and thus nitrogen and carbon can be removed only in the membrane aerated biofilm reactor. The system disclosed by the present disclosure can achieve the goal of removing nitrogen and carbon by 95% and more without additional carbon source, and can meet the demand of in-situ sewage treatment on a train.

Abstract: The present disclosure relates to systems and methods for determining abnormal information associated with a vehicle. The systems may perform the methods to obtain real-time information associated with a bicycle and obtain reference information associated with the bicycle. The systems may also perform the methods to determine, based on the real-time information and the reference information, abnormal information associated with the bicycle, and transmit the abnormal information associated with the bicycle.

Abstract: The present disclosure relates to systems and methods for determining abnormal information associated with a vehicle. The systems may perform the methods to obtain real-time information associated with a bicycle and obtain reference information associated with the bicycle. The systems may also perform the methods to determine, based on the real-time information and the reference information, abnormal information associated with the bicycle, and transmit the abnormal information associated with the bicycle.

Abstract: A system includes a storage device storing a set of instructions and at least one processor in communication with the storage device. When executing the instructions, the at least one processor is configured to cause the system to obtain a request to close a lock such that the lock is in a locked status, and actuate a control device to cause a locking mechanism of the lock to move toward a first position. The at least one processor may also cause the system to determine whether operation information of the lock satisfies a condition relating to an operation of the lock, and actuate the control device to cause the locking mechanism to move to the first position or a second position based on a result of the determination as to whether the operation information of the lock satisfies the condition.

Abstract: The present disclosure relates to systems and methods for determining abnormal information associated with a vehicle. The systems may perform the methods to obtain real-time information associated with a bicycle and obtain reference information associated with the bicycle. The systems may also perform the methods to determine, based on the real-time information and the reference information, abnormal information associated with the bicycle, and transmit the abnormal information to a server or a terminal device associated with the bicycle according to a Narrow Band Internet of Things (NB-IoT) technique or a Long Range (LoRa) technique.

Abstract: A method for vehicle sharing service may include obtaining, from a terminal device, a location of the terminal device via a network. The method may also include obtaining, from the terminal device, information associated with a vehicle, the information including an identifier of a short-range wireless communication module of the vehicle. The short-range wireless communication module may emit a short-range wireless signal. The information associated with the vehicle may further include an intensity of the short-range wireless signal determined by the terminal device. The method may further include determining a location area of the vehicle based on the location of the terminal device and the intensity of the short-range wireless signal.

Abstract: A virtual parking system may include a storage device that stores a set of instructions and a processor in communication with the storage device. When executing the set of instructions, the processor may be configured to cause the system to acquire a first geographical location associated with a virtual parking region and acquire, from a user terminal, a second geographical location via a communication unit of the virtual parking region. The processor may also be configured to cause the system to determine whether a distance between the first geographical location and the second geographical location is less than a threshold distance. The processor may further be configured to cause the system to, in response to a result of the determination that the distance is less than the threshold distance, transmit, via the communication unit, information associated with the virtual parking region to the user terminal.

Abstract: The present disclosure relates to systems and methods for determining abnormal information associated with a vehicle. The systems may perform the methods to obtain real-time information associated with a bicycle and obtain reference information associated with the bicycle. The systems may also perform the methods to determine, based on the real-time information and the reference information, abnormal information associated with the bicycle, and transmit the abnormal information to a server or a terminal device associated with the bicycle according to a Narrow Band Internet of Things (NB-IoT) technique or a Long Range (LoRa) technique.

Abstract: A method for vehicle sharing service may include obtaining, from a terminal device, a location of the terminal device via a network. The method may also include obtaining, from the terminal device, information associated with a vehicle, the information including an identifier of a short-range wireless communication module of the vehicle. The short-range wireless communication module may emit a short-range wireless signal. The information associated with the vehicle may further include an intensity of the short-range wireless signal determined by the terminal device. The method may further include determining a location area of the vehicle based on the location of the terminal device and the intensity of the short-range wireless signal.

Abstract: A method for unlocking a lock may include receiving, via a network, a first service request to unlock a lock from a terminal device. The first service request may be associated with a wireless connection between the lock and the terminal device. The method may also include transmitting, via the network, a password associated with the first service request to the terminal device and receiving an input associated with the terminal device. The method may further include determining whether the received input satisfies an unlocking condition and actuating, based on a result of the determination that the received input satisfies the unlocking condition, a locking mechanism to unlock the lock.

Abstract: A system includes a storage device storing a set of instructions and one or more processors in communication with the storage device. When executing the set of instructions, the processors are configured to cause the system to obtain information associated with a vehicle and a user that uses the vehicle via a network. The processors also cause the system to determine at least one behavior of the user based on the multimedia information. The processors also cause the system to generate at least one message in response to the behavior of the user, and transmit the message to the vehicle or a terminal device of the user via the network. The processors also cause the system to determine broadcast data based on the information. The processors also cause the system to transmit the broadcast data to the vehicle or the terminal device of the user via the network.