Abstract:
Embodiments of the present invention provide a method and apparatus for receiving fragments as well as a method and apparatus for transmitting fragments. The method for receiving fragments includes: receiving a group of fragments from a transmitter through a first channel, where the transmitter suspend transmitting a next group of fragments after the group of fragments is transmitted; and transmitting one or a plurality of first acknowledgement messages to the transmitter through the first channel immediately after the group of fragments are received. According to embodiments of the present invention, the acknowledgement messages may be immediately transmitted to the transmitter through a current channel after one group of fragments are received through the current channel, thereby avoiding the delay of a fragment receiving and transmitting process, which is caused by the competition and occupation of the channel by other nodes, and thus improving transmission efficiency.
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:
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:
Embodiments of the present application disclose a communication method, including: a station performs association certification with access points, wherein the access points at least includes a first access point and a second access point; the station sends sequence numbers to the access points; the station broadcasts a communication message for enabling the access points to return reply messages to the station according to the sequence numbers in sequence, after receiving the communication message; the station receives a reply message returned by at least one access point, and performs data communication with the at least one access point which returns the reply message. The present application may be used for solving the problems that in an OBSS system, the probability of STA in an overlapped area for competing to obtain a channel is small and the throughput is low.
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:
The present invention provides a method for transmitting data, a method for receiving data and a device. The transmitting method includes: transmitting, by an STA, characterizing information to an AP, the characterizing information is used to characterize a maximum transmission delay allowed by uplink data to be transmitted by the STA; receiving, by the STA, transmission time that is specified for the STA and returned by the AP within the maximum transmission delay allowed by the uplink data to be transmitted by the STA, wherein the transmission time is within a range of the maximum transmission delay allowed by the uplink data to be transmitted by the STA; and transmitting, by the STA, the uplink data to the AP within the transmission time. Technical solutions of the present invention solve a problem of data transmission in an emergency application scenario, and guarantee requirements placed by emergency data upon transmission delay.
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.