Abstract:
Systems and methods related to a RFID-based smart confined environment are provided. A system for localizing an object in a smart home includes a single RFID reader, a plurality of passive RFID tags, each of which is affixed to one of a plurality of objects to be located and contains information of a corresponding object, and a mobile platform including two antennas configured to transmit a carrier wave signal and receive a backscattering signal from a target object. The two antennas are parallelogram-shaped and abutted against each other along a radiation direction.
Abstract:
A data transmission method, a server, an offload card, and a storage medium. The method is implemented by a server and includes: receiving a management request sent by a communications device, where the management request includes a first destination MAC address and a first source MAC address, the first destination MAC address is a MAC address of the server, and the first source MAC address is a MAC address of a management node; when the server determines that the management request is to be processed by an offload card, updating the management request, and obtaining an updated management request, where the first destination MAC address in the updated management request is a MAC address of the offload card, and the first source MAC address in the updated management request is the MAC address of the server; and sending the updated management request to the communications device.
Abstract:
Example HARQ-based transmission methods and apparatus are provided, to meet transmission requirements of different services. In one example method, a network device receives a QoS parameter that is of a service corresponding to a service request and that is delivered by a core network device. The network device determines, based on the QoS parameter of the service, a HARQ configuration parameter corresponding to the service, and notifies the HARQ configuration parameter to the terminal device. Therefore, when different services are transmitted between the network device and the terminal device, different HARQ configuration parameters are configured for different services, and data transmission and retransmission of a service are performed based on a configured HARQ configuration parameter, so that transmission requirements of different services can be met.
Abstract:
A smart interface card control method and apparatus are disclosed. The method includes: after a smart interface card is inserted into a smart interface card slot of a host, registering a virtualized management interface with the host by using a protocol stack of a preset type (S102); creating a virtual link, and connecting a baseboard management controller BMC management interface to the virtual link (S104); receiving a management address configuration instruction sent by the host, and configuring a management address of the management interface according to the management address configuration instruction (S106); and receiving a control instruction that is sent by the host by using the management address, and sending the control instruction to the BMC management interface by using the virtual link (S108). According to the foregoing smart interface card control method and apparatus, scalability of the smart interface card can be improved.
Abstract:
A solution to deduplication in a storage system is disclosed herein. In this solution, a controller stores, at a first storage address, a data block that is written for the first time, and inserts, in a fingerprint table, a first fingerprint of first data that is written for the first time, but does not establish a mapping relationship between the first fingerprint and the first storage address. When receiving subsequently written second data to be written, the controller allocates a second storage address to the duplicate second data, stores the second data at the second storage address, and establishes a mapping relationship between the first fingerprint and the second storage address in the fingerprint table. This reduces an amount of data in the fingerprint table.
Abstract:
A transmit power control method is disclosed. An example method includes obtaining a path loss between a to-be-adjusted wireless device and each of multiple wireless devices. A transmit power of the to-be-adjusted wireless device is adjusted according to a neighbor path loss and a target power. The neighbor path loss is a function of a neighbor path loss set. The neighbor path loss set is a set of path losses of a neighbor wireless device set. The neighbor wireless device set is a set of at least two wireless devices among the multiple wireless devices, where path losses between the at least two wireless devices and the to-be-adjusted wireless device are lowest. A layer closest to the to-be-adjusted wireless device is used as a reference to adjust the transmit power, and interference between wireless devices is reduced.
Abstract:
Embodiments of the present invention disclose a precoding method and an apparatus for heterogeneous network coordinated multi-point transmission. The method includes the following steps: obtaining parameter information of the heterogeneous network coordinated multi-point transmission system; comparing a first channel space transmitting power with the maximum transmitting power of a macro base station, and comparing a second channel space transmitting power with the maximum transmitting power of a micro base station according to the parameter information to obtain a comparison result; determining an obtaining manner of a precoding vector according to the comparison result, and obtaining a first precoding vector according to the obtaining manner of the precoding vector; and configuring the macro base station and the micro base station according to the first precoding vector. The present invention is applicable to a heterogeneous network coordinated multi-point transmission environment.
Abstract:
The present invention provides a method and a base station for managing capacity of a wireless communication network, which relates to the field of wireless communications and is capable of saving energy while adjusting capacity of a wireless communication network of a base station. The present invention includes: checking total traffic of all overlay networks belonging to the base station; if the checked total traffic keeps being lesser than a preset load threshold, searching for and determining a first overlay network; maintaining normal work of a power amplifier of at least one antenna in each group of antennas in the first overlay network and turning off power amplifiers of one or more other antennas; and connecting the one or more other antennas to the power amplifiers maintaining normal work in the groups in which the one or more other antennas are located.
Abstract:
A file storage method includes: splitting each of multiple files into one or more file block objects with different sizes; and writing the file block objects obtained from file splitting into corresponding large object storage files, wherein a preset number of large object storage files are pre-created in a storage apparatus, and storage spaces occupied by the preset number of large object storage files in the storage apparatus are continuous.
Abstract:
Embodiments of this application provide a clock synchronization method and a related device. The method includes: determining delay information and a measurement clock offset of an nth link in N links between at least two to-be-synchronized hosts, determining a weight of the nth link based on the delay information of the nth link; and synchronizing clock time of the at least two to-be-synchronized hosts based on weights and measurement clock offsets of the N links. In the method, the clock time of the at least two to-be-synchronized hosts may be synchronized based on a weight and a measurement clock offset of each of the N links, so that errors are allocated to each link by using different weights. This improves precision of clock synchronization of a plurality of to-be-synchronized hosts, and reduces an error of the clock synchronization.