Abstract: A phase-locked loop (PLL) and a method for calibrating a VCO therein are provided. The PLL comprises a frequency-phase detector, a charge pump, a loop filter, a VCO, a divider and a calibration circuit. The calibration circuit is used to acquire a frequency of an output signal of the VCO, to calibrate the frequency of the output signal according to an expected frequency, and to acquire frequency control parameters of the VCO at the current signal frequency. The amplitude and gain of the output signal are kept constant according to the amplitude control parameters and gain control parameters. The PLL can meet the demands on frequencies of multiple protocols and can adaptively look up and stabilize the suitable frequency. It solves the issue that the amplitude of the output signal of the VCO is not constant when the PLL operates in a large frequency range.

Abstract: In a hierarchical storage system, blocks of data selected for auto-tiering migration, are selected based on dynamically adjusted group sizes. Contiguous blocks are organized into default groups. I/O activity of the blocks in a group is monitored. Based on the I/O activity, the default groups may be sub-divided into smaller sub-groups or combined into larger groups, to separate as much as practical, contiguous series of cooler blocks and contiguous series of hotter blocks into respective focused (concentrated) groups or sub-groups. The concentrated group or sub-group may then be migrated according to the average I/O activity of the included blocks. Group configurations are continually and dynamically adjusted according to changing I/O conditions.

Abstract: A system and method for the calibration of downhole azimuthally sensitive resistivity tools is disclosed. The system and method can eliminate and/or compensate for the measurement errors due to the electronic circuit, the mechanical structure, etc., of the tool. The system and method also can validate the measurement accuracy. The downhole azimuthal resistivity logging tool can be, but not limited to, the LWD azimuthal resistivity tools with coil(s) oriented in the directions other than the tool axis. In one embodiment, the system is constructed by the azimuthal resistivity tool, a tilted calibration loop made of conductive wire; an external resistor; and an external inductor. Some other method embodiment comprises an azimuthal resistivity tool, a semicircular conductive wire connected with a conductivity rectangular wire, and the external resistor and inductor.

Abstract: An example wireless device, comprising: a radio system including an antenna, to receive receiver feedback information, the receiver feedback information being information collected by a receiver relating to receiving status of the receiver; a memory; and a processor executing instructions stored on the memory to: determine whether a level of noises and interferences associated with the receiver exceeds a predefined threshold based on the receiver feedback information; in response to determining that the level of noises and interferences associated with the receiver does not exceed the predefined threshold, obtain a revised data error ratio based on an original data error ratio and the receiver feedback information, the original data error ratio being a data error ratio collected by the wireless device; and adjust the data rate associated with the receiver based on the revised data error ratio.

Abstract: Embodiments are directed to a fast path for acknowledgement frames in wireless networks.

Abstract: This application provides an example load threshold determining method and apparatus. The method includes obtaining a plurality of preselected load thresholds of a cell. The method also includes obtaining an evaluation value corresponding to each preselected load threshold in a first periodicity, where each evaluation value is used to evaluate key performance indicator (KPI) information and energy saving information of the cell. The method further includes determining a target load threshold of the cell in a second periodicity based on all evaluation values, where the target load threshold is a load threshold in the plurality of preselected load thresholds, and where the second periodicity is a next periodicity of the first periodicity.

Abstract: According to one example of the present disclosure, an access point (AP) comprises a wired interface and a wireless interface. External wireless client devices may associate with the AP and the AP may forward traffic received from the wireless clients. The AP includes a virtual client which is to simulate a wireless client device.

Abstract: A malicious URL detection method, apparatus, and storage medium are provided. The method includes rolling back a virtual machine to an initiating state in response to detecting a trigger event of the virtual machine. In the initiating state, page content of a target URL is loaded using the virtual machine. Using the virtual machine, an application program linked to the page content is run. A system snapshot file of the virtual machine is obtained in at least one state of the initiating state, a state in which the loading of the page content is completed, or a state in which the application program is being run. Malicious URL detection is performed on the target URL based on the obtained system snapshot file.

Abstract: An example system may include a plurality of wireless radio chains of a radio operating at a channel in a wireless network and a processor to receive a ranging measurement request for a client device not associated with the wireless network, split a subset of wireless radio chains from the plurality of the wireless radio chains, and use the subset of wireless radio chains to service the ranging measurement request.

Abstract: Embodiments are directed to intelligent scheduling of Wi-Fi services for applications. An embodiment of computer-readable storage mediums includes instructions for receiving data packets from multiple connected devices at a wireless access point and identifying an application traffic flow for each data packet; assigning each data packet to a respective queue of a first set of queues based on an identified application traffic flow for each data packet; selecting data packets from the first set of queues based on priorities for each of multiple applications; generating prioritized candidate lists for selected data packets in a second set of queues, each queue being dedicated for an access category for one or more application; and scheduling data packets from the candidate lists, including selecting a transmission mode for each access category based on characteristics of the one or more applications.

Abstract: The present disclosure provides an integration method for multiple centralized units, an integration device for multiple centralized units, and an integration system for multiple centralized units. The integration system for multiple centralized units includes a centralized unit center, the centralized unit center is configured to integrate multiple logical centralized units, the multiple logical centralized units share one or more function modules at corresponding levels according to a preset service requirement, and the function modules at the corresponding levels are configured to provide function services at the corresponding levels for the logical centralized units.

Abstract: In one example a computer implemented method comprises estimating, in a processor communicatively coupled to a wireless client of a composite device, a first transmission time for an uplink beacon from a first access point communicatively coupled to the wireless client, scheduling, in the processor, a second transmission time for a beacon from a local access point of the composite device, and defining a scan window during which scan operations for the wireless client of the composite device and the local access point of the composite device are to occur, the scan window offset from the second transmission time by a first time buffer.

Abstract: Some examples relate to use of a three-address scheme for forwarding frames in a wireless mesh network (WMN). In an example, a node in a WMN may receive an Ethernet packet from a station outside of the WMN. The Ethernet packet may include a first address scheme comprising a destination address (DA) field, and a source address (SA) of the Ethernet packet. The Ethernet packet may be encapsulated in a second Ethernet packet comprising second address scheme. The second Ethernet packet may be encapsulated in an IEEE 802.11 frame comprising a third address scheme.

Abstract: The present application provides a method, an apparatus, a device and a system for processing commodity identification and a storage medium, where the method includes: receiving image information transmitted by a camera apparatus and a distance signal transmitted by a distance sensor corresponding to the camera apparatus; determining a start frame and an end frame for a pickup behavior of a user according to the image information and the distance signal; and determining, according to the start frame and the end frame for the pickup behavior of the user, information of a commodity taken by the user. By performing a commodity identification on the start frame and the end frame for the pickup behavior of the user, and determining the information of the commodity taken by the user, commodity identification efficiency is effectively improved.

Abstract: An example method of controlling a wireless access point may include associating accumulated-channel-resource-consumption variables with, respectively, resource consumers of the wireless access point.

Abstract: A method for determining path health to conduct a plurality of Input-Output (IO) operations along a healthy path in a network is provided. The present invention may include receiving an IO request from a user and sending the received IO request on a first path. The present invention may include determining a first IO response has exceeded a threshold time on the first path. The present invention may include determining the first path has degraded based on the exceeded threshold time. The present invention may include generating a duplicate IO request and sending on a second path. The present invention may include receiving the duplicated IO response before receiving the original IO response. The present invention may include determining a health state associated with the slower path. The present invention may include refreshing a path state machine based on the determined health state associated with the slow path.

Abstract: Techniques for analyzing code are described. In some instances, a code analysis service is to perform a series of comparisons, one or more per path segment of an index structure of non-defective code samples, using a token derived from a defective code segment of the stored code, to determine one or more paths in the index, wherein each path is to point to code that is similar to the defective code segment; and provide, in response to the series of comparisons, at least one of: a location of the code determined to be similar to the defective code segment and the code determined to be similar.

Abstract: Disclosed by the present invention are a running method for an embedded type virtual device and a system, an embedded type device being divided into a managing process, a plurality of real-time modules and a plurality of non-real-time modules. The managing process reading a configuration file, loading real-time and non-real-time module libraries of each processor and completing initialization interaction by means of a virtual controller area network (CAN) bus and first in, first out (FIFO) communication. The managing process starting a real-time thread and serially scheduling real-time task according to a task period setting relation. The managing process starting a plurality of non-real-time threads, calling a period task of a non-real-time module and carrying out parallel communication with a plurality of debugging clients. The real-time modules exchange data with each other by means of a virtual data bus, and the real-time modules exchange data with the non-real-time modules by means of a sharing memory.

Abstract: The present disclosure relates to a method and an apparatus for failure detection in a storage system. One embodiment provides a method for failure detection in a storage system. The method includes determining an amount of data received by a plurality of switches in the storage system within a predetermined time window so as to obtain a plurality of data amounts; determining a count of check errors detected by the plurality of switches in the data to obtain a plurality of check error counts; and calculating a failure risk for the plurality of switches based on the plurality of data amounts and the plurality of check error counts. Another embodiment of the present invention provides a corresponding apparatus.

Abstract: In one example a computer implemented method comprises estimating, in a processor communicatively coupled to a wireless client of a composite device, a first transmission time for an uplink beacon from a first access point communicatively coupled to the wireless client, scheduling, in the processor, a second transmission time for a beacon from a local access point of the composite device, and defining a scan window during which scan operations for the wireless client of the composite device and the local access point of the composite device are to occur, the scan window offset from the second transmission time by a first time buffer.