92 research outputs found

    Device History Recall Optimization with Virtual, Locally-Stored Acquisition Databases Using Previously Encountered Communication Access Points and Services

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    A mobile communication device of an end user (user equipment or “UE”) can use more than one radio access technology (“RAT”) such as GSM, WCDMA, TDS-CDMA, LTE, and NR. Searching for information needed by the UE to use a specific RAT can consume large amounts of power and time. Locally stored acquisition databases (“PLMN Info DBs”) of previously encountered communication access points and services can speed up searches, but can be limited by the storage capacity of the UE. Also a locally stored PLMN Info DB may be invalided when a UE moves to a location that is distant from locations where access points and services were previously encountered; e.g., when the UE is moved to a new region, state, or country. A Virtual PLMN Info DB stored on a remote server (e.g., “in the cloud”) can contain a more complete set of acquisition information. A full or abbreviated copy of the Virtual PLMN Info DB can be loaded onto UE from a server or from a peer UE device. Access information contained in the Virtual PLMN Info DB can be obtained by crowdsourcing data acquisition or by peer-to-peer communication. The Virtual PLMN Info DB can be implemented as a database or as a logic entity with specific functions to enable the acquisition of corresponding data elements on demand

    Organic Anti-counterfeiting Techniques in China

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    The development of organic label anti-counterfeiting techniques in China has been introduced, including three generations of the techniques, especially the third-generation QR Code organic anti-counterfeiting traceable label. How to use the anti-counterfeiting techniques to enable the organic products to be “easy in identification, traceable in information and controllable in quantity”, how to enhance consumers’ recognition and how to power the government's regulation enforcement on organic market were demonstrated

    Photodegradation of Sulfadiazine in Aqueous Solution and the Affecting Factors

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    Knowledge about photochemical behavior of sulfonamides under UV light is limited. In this study, photodegradation of sulfadiazine in water by ultraviolet (UV) light was studied using a 300 W, 365 nm UV lamp. The degradation process followed well the first-order kinetics, with a half-life of 9.76 min in water with air saturation. The photodegradation was slower at acidic pH 4.52 than at pH 6.98 and pH 8.90. Addition of H 2 O 2 and nitrate enhanced the photodegradation rate, while addition of ethanol, nitrite, sulfate, and bicarbonate depressed the reaction rate. This study suggested that sulfadiazine photodegradation under UV light is generally favored by the attack of hydroxyl radicals

    Designing and Practicing of Organic Farm —a case study in Yuxi Manor of China

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    The definition, characteristics and basic discipline of organic manor in China are discussed. Taking the planning of “Yuxi Manor” as an example, the designing for materials and energy circulation, organic production technical system, and quality system of the Manor are highlighted. ICS is introduced creatively into the planning for guaranteeing the organic integrity of the Manor. The study is referential for the construction of other organic manors

    5G Component Carrier Disabling Based on Downlink and Uplink Grant Characteristics

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    5G networks allow a user equipment (UE) such as a smartphone to connect to the network via different component carriers, but this can undesirably increase UE power consumption. To reduce power consumption, the UE selectively turns off 5G for individual component frequencies based on the available resources and slots associated with each component frequency. The UE detects the downlink and uplink resource blocks and slots for each component frequency, and if the resource blocks or slots are below corresponding thresholds, turns off 5G for the carrier

    Selective Disabling of Antenna Modules Affected by Handgrip or Other Blockage

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    User equipment (UE) employing millimeter-wave (mmWave) radio frequency (RF) signaling uses one or more techniques to detect signaling blockages caused by handgrip, body blockage, or lack of line-of-sight with the wireless base station, identifies one or more antenna modules of an array of antenna modules of the UE affected by the blockage, and temporarily disables the one or more affected antenna modules until the blockage is no longer present. As the UE otherwise would consume considerable power attempting to overcome the blockage at the affected antenna module, either by transmitting at a higher power to overcome the attenuation caused by the blockage or to continue to ineffectively scan via the affected antenna module, this selective antenna module disablement process can reduce power consumption at the UE while facilitating a high-quality user experience

    Optimizing Power Consumption for Mobile User Equipment

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    A mobile user equipment selectively enables access to cells based on its mobility state and velocity, as well as the size of the cells. Power consumption and other resources consumed during handoff of mobile user equipment are optimized by determining whether to enable connection to cells based on how long the mobile user equipment is expected to spend in the cells. Geo-fences are used to mark the boundaries of the cells and the mobile user equipment accesses geo-fence information to determine boundaries of the cells. The time the mobile user equipment is likely to spend in the cell is estimated using the velocity of the mobile user equipment and an estimated distance along a path of the mobile user equipment to a boundary of the cell. Access to the cell is disabled if the time is lower than a threshold that is determined based on resource consumption for connecting to the cell

    Enable and Disable 5G Based on Application Identifier

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    A communication device, otherwise known as a user equipment (UE) (e.g., a smartphone) may be configured to support various radio access technologies, which may include fourth generation (4G) such as Long-Term Evolution (LTE) or LTE-Advanced (LTE-A), as well as fifth generation (5G) New Radio (NR) (e.g., millimeter wave (mmW)). The UE may be configured to support various types of applications (e.g., social media applications, video streaming applications, and the like) using one or more radio access technologies (e.g., 4G or 5G). As demand for efficiency increases, it may be desirable to reduce power consumption for the UE (e.g., increase battery life), while providing higher reliability and lower latency for applications running on the UE using one or more radio access technologies

    Optimal Method to Control Measurements of User Equipment Based on Indications of Device Inactivity

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    A multimodal user equipment (UE) monitors various operational conditions indicative of reduced reliance on multimodal capabilities, such as a deactivated display, an immobile UE, low data consumption by background software applications, or a low battery level, and selectively enters a reduced multimodal mode in which the frequency at which measurement operations are performed for various supported radio access technologies (RATs) or radio frequencies is reduced. This results in a reduction in the amount of power and processing bandwidth that otherwise would be consumed if performing these measurement operations at their normal rates
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