Abstract: Embodiments of the present invention relate to data detection technologies, and in particular, to a method and an apparatus for detecting time series data. A method for detecting time series data is disclosed. The method is applied to a data transmission system and includes: determining, based on data information carried in time series data from a data source device, whether missing of time series data occurs in a data receiving process, where the data information includes time information and/or sequence numbers; if missing of time series data occurs, storing data information of the missing time series data; determining whether a preset trigger condition for a data missing notification is currently satisfied; and if the trigger condition for a data missing notification is satisfied, sending data missing notification information to a target device.

Abstract: A portable and easy-to-use alternate fish cutter is provided. It includes a housing constituting a handle, a cutting knife, a driving mechanism, a switch button, and a power supply module. The cutting knife includes a pair of left and right knives arranged side by side. It also includes left and right knife arms. It also includes a worm wheel arranged behind the left knife arm and the right knife arm. It also includes a left connecting rod and a right connecting rod. It also includes a worm and a motor for driving the worm wheel to rotate. Surfaces of the worm wheel and the worm are both provided with mutually meshing helical teeth. The structure of the invention is small and portable, fits the shape of traditional knives, can improve the efficiency and experience of slaughtering.

Abstract: A portable and easy-to-use alternate fish cutter is provided. It includes a housing constituting a handle, a cutting knife, a driving mechanism, a switch button, and a power supply module. The cutting knife includes a pair of left and right knives arranged side by side. It also includes left and right knife arms. It also includes a worm wheel arranged behind the left knife arm and the right knife arm. It also includes a left connecting rod and a right connecting rod. It also includes a worm and a motor for driving the worm wheel to rotate. Surfaces of the worm wheel and the worm are both provided with mutually meshing helical teeth. The structure of the invention is small and portable, fits the shape of traditional knives, can improve the efficiency and experience of slaughtering.

Abstract: The present disclosure describes methods, terminals, and base stations for terminal positioning method. One example method applied to a baseband unit (BBU) in an indoor distributed NodeB system includes: receiving an uplink positioning signal forwarded by multiple remote radio units RRUs, where the uplink positioning signal is sent by a to-be-positioned terminal to the multiple RRUs; selecting, from the multiple RRUs, at least two RRUs as target RRUs according to the uplink positioning signal and a preset rule; and respectively obtaining signal angles of arrival corresponding to the target RRUs, and determining a location of the to-be-positioned terminal according to the signal angles of arrival, locations of the target RRUs, and a preset algorithm.

Abstract: The present disclosure describes methods, terminals, and base stations for terminal positioning method. One example method applied to a baseband unit (BBU) in an indoor distributed NodeB system includes: receiving an uplink positioning signal forwarded by multiple remote radio units RRUs, where the uplink positioning signal is sent by a to-be-positioned terminal to the multiple RRUs; selecting, from the multiple RRUs, at least two RRUs as target RRUs according to the uplink positioning signal and a preset rule; and respectively obtaining signal angles of arrival corresponding to the target RRUs, and determining a location of the to-be-positioned terminal according to the signal angles of arrival, locations of the target RRUs, and a preset algorithm.

Abstract: Embodiments of the present invention relate to data detection technologies, and in particular, to a method and an apparatus for detecting time series data. A method for detecting time series data is disclosed. The method is applied to a data transmission system and includes: determining, based on data information carried in time series data from a data source device, whether missing of time series data occurs in a data receiving process, where the data information includes time information and/or sequence numbers; if missing of time series data occurs, storing data information of the missing time series data; determining whether a preset trigger condition for a data missing notification is currently satisfied; and if the trigger condition for a data missing notification is satisfied, sending data missing notification information to a target device.

Abstract: Embodiments of the present invention relate to data detection technologies, and in particular, to a method and an apparatus for detecting time series data. A method for detecting time series data is disclosed. The method is applied to a data transmission system and includes: determining, based on data information carried in time series data from a data source device, whether missing of time series data occurs in a data receiving process, where the data information includes time information and/or sequence numbers; if missing of time series data occurs, storing data information of the missing time series data; determining whether a preset trigger condition for a data missing notification is currently satisfied; and if the trigger condition for a data missing notification is satisfied, sending data missing notification information to a target device.

Abstract: The present disclosure describes methods, terminals, and base stations for terminal positioning method. One example method applied to a baseband unit (BBU) in an indoor distributed NodeB system includes: receiving an uplink positioning signal forwarded by multiple remote radio units RRUs, where the uplink positioning signal is sent by a to-be-positioned terminal to the multiple RRUs; selecting, from the multiple RRUs, at least two RRUs as target RRUs according to the uplink positioning signal and a preset rule; and respectively obtaining signal angles of arrival corresponding to the target RRUs, and determining a location of the to-be-positioned terminal according to the signal angles of arrival, locations of the target RRUs, and a preset algorithm.

Abstract: The present disclosure describes methods, terminals, and base stations for terminal positioning method. One example method applied to a baseband unit (BBU) in an indoor distributed NodeB system includes: receiving an uplink positioning signal forwarded by multiple remote radio units RRUs, where the uplink positioning signal is sent by a to-be-positioned terminal to the multiple RRUs; selecting, from the multiple RRUs, at least two RRUs as target RRUs according to the uplink positioning signal and a preset rule; and respectively obtaining signal angles of arrival corresponding to the target RRUs, and determining a location of the to-be-positioned terminal according to the signal angles of arrival, locations of the target RRUs, and a preset algorithm.

Abstract: The present disclosure provides a wireless network-based positioning method and positioning apparatus. The positioning method includes: obtaining time information used for determining a current location of a to-be-positioned node, where the time information records times of arrival of a first sounding signal; determining time differences of arrival of the first sounding signal at the at least three anchor nodes according to recorded historical information and the time information; and determining the current location of the to-be-positioned node according to locations of the at least three anchor nodes and the time differences of arrival of the first sounding signal at the at least three anchor nodes. By means of the present disclosure, time differences of arrival of a sounding signal at different anchor nodes can be accurately determined, thereby determining an accurate location of a to-be-positioned node and avoiding synchronization between the anchor nodes.

Abstract: Embodiments of the present invention relate to data detection technologies, and in particular, to a method and an apparatus for detecting time series data. A method for detecting time series data is disclosed. The method is applied to a data transmission system and includes: determining, based on data information carried in time series data from a data source device, whether missing of time series data occurs in a data receiving process, where the data information includes time information and/or sequence numbers; if missing of time series data occurs, storing data information of the missing time series data; determining whether a preset trigger condition for a data missing notification is currently satisfied; and if the trigger condition for a data missing notification is satisfied, sending data missing notification information to a target device.

Abstract: The present invention provides a wireless network-based positioning method and positioning apparatus. The positioning method includes: obtaining time information used for determining a current location of a to-be-positioned node, where the time information records times of arrival of a first sounding signal determining time differences of arrival of the first sounding signal at the at least three anchor nodes according to recorded historical information and the time information; and determining the current location of the to-be-positioned node according to locations of the at least three anchor nodes and the time differences of arrival of the first sounding signal at the at least three anchor nodes. By means of the present invention, time differences of arrival of a sounding signal at different anchor nodes can be accurately determined, thereby determining an accurate location of a to-be-positioned node and avoiding synchronization between the anchor nodes.

Abstract: The present disclosure describes methods, terminals, and base stations for terminal positioning method. One example method applied to a baseband unit (BBU) in an indoor distributed NodeB system includes: receiving an uplink positioning signal forwarded by multiple remote radio units RRUs, where the uplink positioning signal is sent by a to-be-positioned terminal to the multiple RRUs; selecting, from the multiple RRUs, at least two RRUs as target RRUs according to the uplink positioning signal and a preset rule; and respectively obtaining signal angles of arrival corresponding to the target RRUs, and determining a location of the to-be-positioned terminal according to the signal angles of arrival, locations of the target RRUs, and a preset algorithm.

Abstract: Method includes: determining, by a Access Point, AP, a duration of a time segment according to the number of sensor stations and a size of uplink data and a data transmission rate of the sensor stations in a network; wherein in the time segment, only sensor stations are allowed to perform access contention; sending, by the AP, a beacon frame, wherein the beacon frame carries information about the time segment.

Abstract: Embodiments of the present application provide an interference processing method and device. The method includes: a first access point (AP) receiving a frame sent by a second AP, the frame carrying downlink data load of the second AP, and intra-frequency interference existing between the first AP and the second AP; and the first AP adjusting, according to downlink data load of the first AP and the downlink data load of the second AP, a channel bandwidth used for performing data communication with a station (STA), so as to reduce the probability that the first AP and the second AP transmits data by using same channel. By using the method and the device for dynamically adjusting a bandwidth, intra-frequency interference of devices in OBSS can be reduced.

Abstract: Embodiments of the present invention provide a time series data processing method and apparatus, where the method includes: first, receiving, by a common services entity CSE, a request message sent by an application entity AE, where the request message carries a first operation type and at least one piece of first time series data, or carries a second operation type and at least one filter criterion, the first operation type is an insert operation, a delete operation, or a query operation, and the second operation type is a delete operation or a query operation; and then, processing, by the common services entity CSE, a time series data set according to the request message, and sending a processing result to the application entity AE.

Abstract: The method includes: sending, by an access point (AP), a multicast association identifier (MID) of a multicast group to a station (STA), where one multicast group has one or more MIDs, and each MID corresponds to one multicast group and a receiving period of a STA in the multicast group; sending, by the AP, a delivery traffic indication map (DTIM) beacon frame to the STA, where the DTIM beacon frame includes the MID and is used for indicating a multicast group that has multicast information to be sent to the STA; and sending, by the AP, the multicast information of the multicast group, where the multicast information carries information about the MID or information associated with the MID, and the multicast information is received by the STA. The technical solutions of the present invention reduce resource waste of a STA.

Abstract: A multicast packet transmission method and an apparatus relate to the communications field and define how multicast data is sent to stations (STAs) using a multicast association identifier (AID). The method includes allocating, by an access point (AP), a corresponding multicast AID to STAs, where the multicast AID is set in a short media access control (MAC) header of a multicast packet; and sending, by the AP, the multicast packet to at least two STAs, so that the at least two STAs determine, according to the multicast AID, whether the multicast packet is a multicast packet corresponding to the at least two STAs, where the at least two STAs are in a same multicast group.

Abstract: A multicast packet transmission method and an apparatus are provided that relate to the communications field and define how multicast data is sent to stations (STAs) by using a multicast association identifier (AID). The method includes: allocating, by an access point (AP), a corresponding multicast AID to STAs, where the multicast AID is set in a short media access control (MAC) header of a multicast packet; and sending, by the AP, the multicast packet to at least two STAs, so that the at least two STAs determine, according to the multicast AID, whether the multicast packet is a multicast packet corresponding to the at least two STAs, where the at least two STAs are in a same multicast group.