6953 results about "SMARAD" patented technology

A system and device for harvesting various frequencies and polarizations of ambient radio frequency (RF) electromagnetic (EM) energy for making a passive sensor (tag) into an autonomous passive sensor (tag) adapted to collect and store data with time-stamping and some primitive computation when necessary even when an interrogating radio frequency identification (RFID) reader is not present (not transmitting). A specific source of ambient RF EM energy may include wireless fidelity (WiFi) and / or cellular telephone base stations. The system and device may also allow for the recharging of energy storage units in active and battery assisted passive (BAP) devices. The system could be a “smart building” that uses passive sensors with RF EM energy harvesting capability to sense environmental variables, security breaches, as well as information from “smart appliances” that can be used for a variety of controls and can be accessed locally or remotely over the Internet or cellular networks.

Apparatus and methods implement aggregation frames and allocation frames. The aggregation frames include a plurality of MSDUs or fragments thereof aggregated or otherwise combined together. An aggregation frame makes more efficient use of the wireless communication resources. The allocation frame defines a plurality of time intervals. The allocation frame specifies a pair of stations that are permitted to communicate with each other during each time interval as well as the antenna configuration to be used for the communication. This permits stations to know ahead of time when they are to communicate, with which other stations and the antenna configuration that should be used. A buffered traffic field can also be added to the frames to specify how much data remains to be transmitted following the current frame. This enables network traffic to be scheduled more effectively.

The present invention features an RFID smart shelf reader capable of working with a wide range of antenna types and numbers. The smart shelf reader readily accommodates and accurately reads a diverse range of package shapes, sizes, and contents. Multiple tags in close proximity to one another are accurately read by the smart shelf reader. The reader includes features for optimizing its own interface by periodically recalibrating itself to the current antenna load characteristics caused by varying external conditions, primarily in the type, number, and position of merchandise items on the shelf proximate at least one of the antennas. An external I / O interface is provided for communication with a remote controller.

This invention is related to the calibration apparatus and method for compensating the phase characteristics in the receiving and transmitting signal paths of array antenna system, especially adaptive array antenna system operating as the base station system. The objective of this invention is to provide the calibration apparatus and method for the array antenna system to be able to compensate its phase differences or irregularities without any restrictions on the array structure or position of additional antenna or antenna toplogies while the array antenna system is in its operational mode such that the signals used by the subscribers are received or transmitted together with the signals used for the calibration. In this invention the phase delay between the additional antenna element and each of the antenna elements of the array antenna system is measured in advance of the calibration procedure to be used when the phase differences or irregularities are measured during the calibration procedure. The test signals used for the calibration is distinguishable from the signals used by the subscribers. Furthermore, each of the transmitting calibration signals itself is distinguishable from one another when the plural transmitting signal paths are to be calibrated simultaneously.

A method (FIG. 5) and apparatus (FIG. 3) to provide control and policy enforcement of WAP (Wireless Application Protocol) services in a wireless data networks is taught herein. WAP traffic is inspected with efficient algorithms to intercept un-registered WAP access and intercept dynamic change of user service selection. The intercepted WAP requests are modified with value-added parameters (such as QoS and subscriber identifiers) as per user and service provider agreement and table data. A series of strategies are described to blend wireless intelligence, user preference and service subscription, network operator requirements and service provider or enterprise preferences into routing and drive page generation. The means to dynamically provision users' service choices to wireless network elements are also presented without having to break the session within the system. This enables innovative data services such as pay-per-use, smart routing, and enterprise secured WAP services unlike any current conventional system.

Exemplary embodiments of system and method are provided for measuring signal amplitude, phase and / or delay offsets between multiple transmit signals fed through the transmit signal processing chains and wirelessly transmitted over the transceive antennas of separate transceiver modules, wherein transmit signal coupling between the transmit antennas of said transceiver modules' transmit signal processing chains may be used for synchronizing the transmit signals and calibrating their amplitude, phase and / or delay parameters. The exemplary embodiments further provide a front end arrangement of a wireless transceiver device which can comprise at least two independently controllable transceiver modules, each connected to an associated spatial diversity transceive antenna and comprising at least one associated transmit signal processing chain and at least one associated receive signal processing chain coupled to a common baseband processing unit. The exemplary transceiver architecture can be executed on an antenna loop between the transmit signal processing chain of a first transceiver module and the transmit signal processing chain of a second transceiver over the air interface and relies on an adaptive antenna concept which facilitates a wireless transmission of data via a plurality of wireless communication channels utilizing an array of transceive antennas, receiving feedback information via at least one of said communication channels using such antenna loop and modifying a transmission mode based on the received feedback information.

Low-cost intelligent control and communication devices are arranged to communicate with one another over one or more shared physical media, such as a powerline or a radio frequency band. No network controller is needed, because any device can act as a master, slave, or repeater. Adding more devices makes the system more robust, by virtue of a simple protocol for communication retransmissions and retries.

The present invention is directed generally to an intelligent endpoint or communication device that can collect available bandwidth-related information metrics and / or perform call admission control functions. The present invention is further directed to an architecture comprising a switch or media server in communication with a plurality of subscriber communication devices in which the subscriber communication devices act as network nodes to collect available bandwidth-related information.

Controlling margins in a DSL modem pair is based on collected operational data. The operational data is analyzed and at least one of the modems in the modem pair is instructed to use a margin-related parameter value to assist the modem pair in meeting a margin target, such as a margin limit imposed by a DSL standard or the like. A controller, such as a DSM Center, a “smart” modem unit and / or a computer system can collect and analyze the operational data and generate one or more margin-related parameter values. The margin-related parameter value may be a PSD-related value, such as the MAXNOMPSD, MAXNOMATP or PSDMASK parameter used by various ADSL systems, and may be a shaped spectral mask and / or caps or limits on bit loading for use in transmissions between the modems. In some cases, preference bands can be imposed to direct modems to favor and / or avoid certain frequencies in the modem's usable band(s). The operational data may include historical data relating to prior performance of the modem pair and prior margin compliance. A distribution of margins also may be based on operational data and may be estimated as a function of data rate. Using the estimated margin distribution, a distribution of performance parameters also is calculated, including the probabilities of line outages and probabilities of one or more error parameters exceeding minimum levels. Data rates and / or performance-related parameters may be set on the basis of the estimated performance of the system using various margin settings and levels.

A method, communication apparatus, and machine-readable medium to transmit a downlink signal in a substantially non directional manner from a first communication station of a communication system on a first downlink conventional channel. The first communication station includes a smart antenna system having a plurality of antenna elements. The method includes providing a first set of sequential time intervals for the communication device for communication with its remote communication devices. One or more remote communication devices of the communication system known to the first communication station to be undesired remote communication devices transmit a signal on a first uplink conventional channel. The signals transmitted are received. In one version, they are received at the first communication station, and in another version, by another communication station of the communication system. The signal received are used to configure the smart antenna system for transmitting a downlink signal in a non-directional manner that includes mitigating interference towards the undesired remote communication devices on the first downlink conventional channel.

In wireless system, a group of Basestations (BTSs) can be managed by a centralized network management identity or can be self-organized by communicating with each other via wireless air-interfaces or wired interfaces. One such example are Femtocell systems. When the BTSs are using the same frequency for transmitting and receiving with relatively large transmitting power and when they are closer to each other, performance of such a system and user throughput or QoS (Quality of Service) gets degraded due to the interference between the BTSs and among the users. Smart antenna technique can be used in a coordinated way among a group of BTSs, such as Femtocells, to avoid or reduce interference or manage how interference happens to achieve performance enhancement such as higher system throughput or better QoS to individual applications.

Disclosed are smart digital modules, a smart digital wall combining the smart digital modules, a context-aware interactive multimedia system, and an operating method thereof. The smart digital wall includes local coordinators for controlling the smart digital modules, and a coordination process for controlling the smart digital modules. The smart digital modules sense ambient states and changes of states and independently display corresponding actuations. The coordination process is connected to the smart digital modules via radio communication, and combines smart digital modules to control collective operations of the smart digital modules.

Disclosed are systems and methods which provide high bandwidth data communication with respect to a large coverage area using smart antenna and / or directional antenna (referred to herein as multi-beam antenna) technology. Circuitry may be provided at a WLAN AP to provide selection of particular antenna beams used in the downlink and / or uplink, control of multicast transmission, control of unicast transmission, and to provide antenna pattern shaping techniques. Embodiments implement multi-beam antenna technology with little or no hardware modifications to AP circuitry. Other embodiments implement multi-beam technology using radio front-end and / or radio hardware modifications to AP circuitry. Various diversity techniques may be implemented, such as selection diversity, maximum ratio combining, and equal gain combing. To provide desired antenna pattern shaping, phase offsets with respect to a signal as transmitted in each antenna beam may be employed.

Embodiments of the present disclosure is directed to the use of spatially diverse multiple antenna structures and associated radio transmitters and receivers in a sensor for accurate proximity detection. In a retail environment, a system based on a network of such (smart) sensors can accurately detect presence and location of a shopper's wireless mobile device as the shopper moves along the shopping aisles carrying the wireless mobile device (e.g. smartphone). Based on the location of the shopper and the duration of the shopper stopping in front of a product shelf in an aisle, embodiments can engage the shopper (through the wireless mobile device) in transaction-oriented interactions using the ‘sense, analyze, and connect’ capability of the various embodiments described herein. Such interactions result in increased revenue for the retailers as well as better understanding of the shopping behavior of the retail shoppers. Such understanding can be embodied in improved analytics.

When connecting a unit to one or more existing ad hoc wireless networks comprising several units, the units e.g. adapted to communicate according to the Bluetooth specification and the network then being formed according to the same specification to comprise one or more piconets, a unit can discover the units which are the masters in the networks, and then connect as a slave to those masters. Specifically it does not have to use the master-slave switch according to the Bluetooth specification. In the first stage of the unit trying to make a connection it establishes contact with at least one unit in an existing ad hoc network and then additional information on the status, in particular the role of master or slave, of the unit already connected in the network is transferred to the not yet connected unit. This information facilitates the decision of the unconnected unit as to which unit in the network that it should try to correct to. Then, in the actual connecting of the unit to the network, the roles of the unit and of the already connected unit can be chosen by the unit wanting to be connected. In particular, the initially inquiring and paging unit may become a slave unit in a newly formed piconet or in an already existing piconet.

Beamforming techniques to limit radiated power where there is the potential for interference with macro-cellular coverage or with adjacent mobile stations. Smart antenna beamforming techniques (including the use of angle of arrival information) are combined with access probe information to determine the direction for radiated power and the level of the needed transmitted power as well for the small office or home (SOHO) environment. The placement of RF power in the SOHO specific to where it is needed, minimizes radiating power in directions where it will cause interference with macrocell coverage. In addition, the beamforming techniques provide a base transceiver station with an economical method to quickly solve coverage issues internal to a SOHO, without introducing interference external to this coverage environment. In addition, there specific placement of the RF power where it is needed provides an increase in spectral efficiency of a deployed network.

A system and method in a radio telecommunications network for automatically conveying a Wireless Office System (WOS) frequency set to a mobile station (MS) belonging to the WOS. The network includes a public cell, and a private WOS located within the public cell. A WOS controller sends the WOS frequency set from the WOS to an Equipment Identity Register (EIR) in the network whenever the WOS changes its frequency set. When the MS registers in the public cell in which the WOS is located, a mobile switching center (MSC) serving the public cell notifies an Intelligent Roaming Database (IRDB) of the registration. The IRDB fetches the WOS frequency set from the database, and obtains location information for the MS from a home location register (HLR). The IRDB then sends the WOS frequency set to the MS in an IS-136 R-DATA message.

The invention provides a set top box with a WIFI (Wireless Fidelity) module. The set top box comprises a set top box body, wherein an external USB (Universal Serial Bus) interface, a functional press key, a power supply indication lamp, a signal locking indication lamp and an SD (Secure Digital) card reader socket are arranged on a front panel of the set top box body, wherein heat dissipation holes are arranged in side plates of two ends of the set top box body; an output interface, a user interactive interface and a three-network fused interface are arranged on a rear terminal board of the set top box body; the set top box body is internally provided with a main control circuit; the main control circuit comprises a main chip, a WIFI module, a demodulator, a TS (Transport Stream) demultiplexing device, a multimedia decoder, a multimedia encoder, a flash memory, an inner memory and an input / output control circuit. According to the set top box disclosed by the invention, network transformation cost is saved and a plurality of networks are fused and accessed; meanwhile, a television program is played and Internet is accessed or three-screen interaction is realized; and after an intelligent terminal passes through WIFIAP (Wireless Fidelity Access Point) authentication in real time, the intelligent terminal can be subjected to intelligent interaction with the set top box; and the invention provides a more flexible and humanized operation manner for users.

Phasor Measurement Units (PMUs) tend to be specialized and expensive—relegated to only key points in power distribution networks, and are generally reliant on GPS technology. The present disclosure details how any smart meter—using wireless communication—can perform sub-microsecond-grade synchrophasor measurements. Other aspects concern smart meter-based determination of A, B or C phase of the tri-phase power network. This can involve count-stamp enabling message packets sent to and / or from a smart meter, and then associating such count-stamps to local measurements of power phase by a metrology unit. Once a network of such enabled smart meters and other devices is formed, sub-microsecond metropolitan-wide and entire region-wide synchronizing time standard can calibrate local measurements of power phase, where simple A, B and C phase determination is one low hanging fruit application of such. Low cost aggregate monitoring of metropolitan-wide synchrophasors promises a next chapter of importance for that relatively recent art.

A wireless remote controlled rover (100) having a circular outer boundary when viewed in profile, comprising an elongated round-profile frame (20) outfitted with a pair of omnidirectional wheels (101L,R), rotatable in opposite directions by a drive system (50), for steering. Each of omnidirectional wheels (101L,R) comprises a set of secondary wheels (150L,R) akin to large diameter hollow flexible shafts arcuately bent and distributed in a polar array about corresponding hubs (82L,R). The secondary wheels (150L,R) are rotatable by the drive system (50) for longitudinal thrust of rover (100). A user controls the steering and thrust actions via remote control (166) for navigation and to compensate for incidental inertial rolling / careening effects of the two-wheel round-profile rover (100) while in motion. An onboard intelligent electronic processing unit (33) uses sensory feedback for autopilot, or assistive navigation, during certain scenarios such as performing user-requested optimum stopping maneuvers.

A robust wireless communications system operable to provide communications for mobile wireless devices. The wireless communications system generally includes a management computing system, wireless infrastructure, and mobile wireless devices. The wireless infrastructure includes wireless infrastructure devices having processing and storage capability. Similarly, the mobile wireless devices include processing and storage capability. Communication links between the management computing system and wireless infrastructure, and wireless infrastructure and mobile wireless devices are utilized to downlink and uplink data. In operation, data generated at the management computing system may be downloaded to the wireless infrastructure and mobile wireless devices sequentially without active simultaneous communication links. Similarly, data generated at the mobile wireless devices may be uploaded to the wireless infrastructure and management computing system without active simultaneous communication links. Because the wireless infrastructure and mobile wireless devices are intelligent, decisions may be made independent of a communication link existing with the management computing system.

A communications module, and a consumer device comprising the communications model, is provided for use in a communication network with one or more consumer devices or “smart” appliances. The communications module includes a wireless transceiver for communication with the network, for example in accordance with the ZigBee protocol, and an interface for communicating with a host processor of the consumer device. The module receives scheduled event data over a wireless link on behalf of the host processor, and schedules events for execution by the host processor upon receipt of commands transmitted by the module. The communications module may include a virtual host module, which translates commands between a protocol used by the host processor and a protocol used by the communications module. The communications module is also configured to automatically seek and join a network, and to discover and bind to services provided over the network.

In a blended inbound / outbound call center (100), an outbound call-pacing function (122) decides whether or not to initiate an additional outbound call for a particular skill. It determines (206) whether the number of available agents for the skill plus the number of resting agents for the skill exceeds the number of available inbound calls for the skill plus the number of outstanding outbound calls for the skill. It also determines (312) whether a target service time for the skill exceeds an estimated wait time of each of the available inbound calls for the skill assuming that pending outbound calls for the skill plus one take precedence over the inbound calls. If both determinations are affirmative, the call pacing function initiates (318) an additional call for the skill. If either determination is negative, the function forbears (321) from initiating an additional call for the skill. The number of available and resting agents may be incremented (206) by (a) a difference between the target service time for the skill and the present waiting time of the last-enqueued inbound call for the skill divided by the average rate of advance through the skill's call queue, or (b) the average amount of time that a newly-initiated outbound call for the skill takes to become available divided by the average rate of advance, plus the number of agents for the skill who are busy but expected to become available within a time period equal to (a) or (b), less the number of those agents that will receive a rest period upon becoming idle. The number of calls may be incremented (206) by the number of inbound calls that are expected to arrive within the time period (a) or (b).

The invention provides a reconfigurable intelligent surface assisted multi-user MIMO uplink transmission method. According to the transmission method, a signal sent by a user side is reflected to a base station through an RIS, and the RIS can change the phase of the signal incident on the RIS. Aiming at a bottleneck problem of channel information acquisition of an RIS-assisted multi-user MIMO transmission system, only partial channel state information is utilized, including instantaneous channel state information from the RIS to a base station channel and statistical channel state informationfrom a user to the RIS channel; through an alternate optimization method, a deterministic equivalence principle, a block coordinate descent method, an MM method and the like, a sending covariance matrix and an RIS phase shift matrix of a user are jointly designed to maximize the global energy efficiency of the system or traverse the spectral efficiency; when the channel state information is changed, the user side dynamically implements transmission power distribution with maximum energy or spectral efficiency, and the RIS dynamically adjusts the phase shift matrix. According to the invention,the implementation complexity is low, and the performance of multi-user MIMO uplink transmission can be effectively improved.

The invention discloses an intelligent space and nurse robot multi-sensor system, establishes a manual sign expression model of the typical QRCode and RFID (radio frequency identification devices) based technique in intelligent space, builds a multi-mode information expression system based on improved JDL (joint directors of laboratories) model and a multi-mode information acquiring model based on a distribution type data fusion tree, and designs a corresponding fusion algorithm by aiming at the characteristics of each layer. The model shields the isomerism of the device and the complexity of environment. By considering the dynamics, isomerism and hierarchy of intelligent space information and organically combining local fusion with overall fusion, the fusion efficiency is increased, the fusion precision is ensured, the recognition of intelligent space to human and environment is improved, the system is conveniently integrated, and the expandability and the reusability of the system are improved.

A communication method and system to converge a 5th-Generation (5G) communication system to support higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. This disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, e.g., smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security / safety services. A method of transmitting and updating modified information to a profile management server (SM-SR) when a modification is made to information stored in an eUICC that is a security module embedded in a terminal is provided. More specifically, the present disclosure relates to a method to update a profile management server to enable profile management using OTA technology when a modification is made to data stored in an MNO-SD that is a unique area of each mobile network operator of a profile stored in an eUICC.