75 results about "Extended coverage" patented technology

A low pressure, extended coverage, fire protection sprinkler, e.g., of the upright type, suitable for use in protection of at least extra hazard and high piled storage occupancies, in accordance with the 1999 Edition of NFPA 13, has a body with an internal passageway extending between an inlet end and an opposite outlet end, and a deflector mounted to the body by at least one support arm and disposed in alignment with the axis and generally spaced from the outlet end of the internal passageway. The sprinkler has a predetermined K-factor, e.g., of greater than about 16.0. The sprinkler is configured and arranged to deflect flow of water generally radially outwardly and downwardly of the sprinkler in a predetermined spray pattern. Preferably, the predetermined spray pattern has a generally polygonal shape, e.g., a rectangular shape, when viewed at a predetermined distance below the deflector.

A Multi Input Multi Output (MIMO) Wireless Communication System method and apparatus are proposed whereby in a 2-way wireless communication system with scattering, random and imperfectly estimated propagation channels the ubiquitous and inherent MIMO cross-talk interference problem is solved so that robust and predictable Extended Communication Range and Extended Data Rate are achieved.

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.

A sprinkler discharges a column of water downwardly onto a deflector that has a plurality of peripheral tines with a respective non-radial tapered notch separating each adjacent pair of tines. Opposed cutouts with tabs in the central portion of the deflector combine with the notches and with depressed peripheral tabs to produce a predetermined spray pattern.

A communication system and method for extending coverage of a base transceiver station. The communication system includes processing circuitry that receives a communication signal over a wireless channel. The received communication signal is processed through an adaptable equalizer to reduce noise, distortion, interference, and frequency errors. In another aspect of the invention, a frequency of a reference signal in the communication system is adjusted to compensate for frequency errors between the communication system and the source of the communication signal. The equalized and frequency adjusted communication signal is then retransmitted into an extended coverage area. Wireless coverage is thereby provided between a base transceiver station and a mobile device in the extended coverage area.

A radio frequency identification (RFID) system for discs such as CDs, DVDs or minidiscs includes a special RFID transponder and antenna configuration. The discs normally include an outer metallized annular zone where information is stored, a central hole, and an inner annular zone between the hole and the outer annular zone. The transponder may be located in the inner annular zone, with antenna elements coupled to the transponder extending in opposite directions part way across the outer annular zone. Multilayer labels with a recess for the transponder chip, and antenna elements formed by conductive material may be employed to apply the RFID assembly to the discs. A monopole or dipole mode of antenna operation, prominently involving the metallized disc layer, results from the antenna configuration, and serves to more than double the range of the system.

The invention provides solutions, including devices, systems, methods and software, for allowing interoperability between legacy stations and extended-range stations in a wireless network. Merely by way of example, an access point might be configured to transmit communications (such as beacon frames, broadcast frames, multi-cast frames, etc.) in a first mode and / or a second mode. The first mode might not employ extended-range technology, such that communications transmitted in the first mode can be received and / or interpreted by legacy stations, while the second mode might employ extended-range technology, such that communications transmitted in the second mode can be received by extended-range stations outside the range of basic-range communications. As another example, the access point might be configured to establish transmission “windows,” such that legacy stations are free to transmit during a first time period, in which extended-range stations are prohibited from transmission, followed by a second time period, in which extended-range stations are free to transmit, while transmission from legacy stations is prohibited.

A method in a first base station having a first coverage area at least partly overlapping with a second coverage area of a second base station, the first base station operating within a first transmission power range and the second base station operating within a second transmission power range. The method includes determining radio link quality of a user equipment (UE1) connected to the first base station and being located in an adjustable extended coverage range of the second base station; requesting from the second base station, interference related measurements for unused physical channels or for physical channels at least partially overlapping with physical channels used by UE1 and having the radio link quality falling below a threshold value; and deciding for UE1, based on the interference related measurements, whether a handover to the second base station should be performed.

A user equipment unit (30) and a base station node (28) which is configured for operation with a synchronous HARQ protocol and with capability of sending data on an E-DCH channel either (1) in a nominal mode in single transmission time intervals of a predetermined length, or (2) in an extended mode in a pseudo transmission time interval. The pseudo transmission time interval comprises a first transmission time interval in which the data is transmitted and a second transmission time interval in which the data is re-transmitted. The second transmission time interval is consecutive to the first transmission time interval, and the first transmission time interval and the second transmission time interval are each of the (same) predetermined length.

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.

The described principles provide a method and system for assisting a user of an electric vehicle in maintaining a charge state of the chargeable onboard energy storage system so as to be able to forgo the use of an auxiliary power unit to great extent. The method, also implemented by the system, comprises identifying charging locations for the vehicle, and prompting the user to charge the vehicle when the vehicle is at a charging location and a charge is need to avoid the use of the auxiliary power unit for a learned or planned journey. The charge reminder my be visible and / or audible within the vehicle and may optionally be remote from the vehicle.

The present invention relates to a method and a device for machine type communication in a wireless communication system, and according to one embodiment of the present invention, a method for receiving a paging message in a wireless communication system for supporting MTC comprises the steps of: determining whether there is a terminal within a normal coverage (NC) or an extended coverage (EC), transmitting, to a network, state information including EC function support information and / or area display information of the NC or the EC according to the determination result; determining a paging receiving time according to an operation mode related to the state information, and receiving the paging message according to the determined paging receiving time.

Devices and methods of paging user equipment (UE) are generally described. An evolved Node-B (eNB) may transmit legacy and extended coverage paging messages having different Paging Radio Network Temporary Identifiers (P-RNTIs) to UEs. Each extended coverage paging message may contain the same information, which coverage constrained UEs may combine to achieve a predetermined link budget and subsequently decode. The coverage constrained UEs may ignore legacy paging messages prior to decoding the legacy paging messages. The extended coverage paging messages may be transmitted in non-legacy paging occasions that may span multiple paging cycles. Each paging cycle may contain 0, 1 or multiple extended coverage paging occasions. The UE may be provided the physical resource blocks (PRBs) used for the extended coverage paging message through a system information message. The PRBs may be assigned as a fixed or semi-statically assigned set of PRBs or a dynamically assigned set of PRBs.

A centralized scheduling method and apparatus is provided for minimizing inter-cell interference in the wireless communication system adopting femto-eNB-based service coverage expansion (range expansion). The method includes establishing, by a server, a connection with at least one base station, collecting channel information between the at least one base station connected to the server and terminals, determining interfering base stations causing interference to each terminal based on the channel information, and selecting the terminals to be scheduled in consideration of the interfering base stations.

Systems and methods related to a synchronization signal particularly well suited for wireless devices in an extended coverage area of a cell of a cellular communications network are disclosed. In one embodiment, a base station transmits a synchronization signal including multiple repetitions of a basic synchronization block during a coherence time of a downlink channel over which the synchronization signal is transmitted. The multiple repetitions of the basic synchronization block during the coherence time enable coherent combining during detection of the synchronization signal at wireless devices located in the cellular communications network. This coherent combining enables, for example, wireless devices located in an extended coverage area of a cell served by the base station to synchronize to the cell using a shorter synchronization signal than that which would be required if only non-coherent combining were used.

A system and method for generating a multidimensional navigation solution utilizes Global Positioning System (GPS) data to obtain highly reliable and accurate navigational solutions in high interference and dynamic environments, at a performance level which has been heretofore unattainable. Additional sensors such as inertial (gyros and accelerometers), altimeters, radars, etc. may be employed in a deeply integrated configuration. The approach taken in the present invention differs from that of previous techniques through its exploitation of nonlinear filtering methods; as a result, the navigation system architecture and processes employed yield significant improvements in navigation system performance, both in code tracking and reacquisition, and in carrier tracking and reacquisition. The improvements are particularly significant at low signal / noise ratios, where conventional approaches are especially susceptible to loss of code lock or carrier lock.

In the embodiments described in the specification, a deck / hall extended coverage horizontal sprinkler arrangement has a sprinkler body with frame arms oriented in a vertical plane and a deflector mounted on the frame arms having semi-conical sections on opposite sides of the frame arms. The semi-conical sections are open in the direction toward the sprinkler orifice and include centrally located horizontal openings with vanes extending forwardly above the opening and top surfaces which are flattened and extend outwardly beyond the edges of the conical surfaces of the semi-conical sections.

A wireless local area network (WLAN) includes at least one high throughput-enabled access point (AP) and at least one high throughput-enabled station (STA). A STA and a target AP communicate high throughput-related information and the STA performs a basic service set (BSS) transition to the target AP based on the high throughput-related information. The high throughput-related information may be included in an IEEE 802.11r, 802.11k, or 802.11v signaling message. The STA may send measurement reports for an extended range and a normal range of an AP separately, or may send a combined measurement report for an extended range and a normal range of an AP. A network management entity may obtain current status information of the STA and the AP regarding high throughput capabilities, features and parameters and selectively enable and disable at least one of the high throughput capabilities, features and parameters of the STA and the AP.

An extended coverage pendent sprinkler configured for the fire protection of an occupancy classified as any one of: light hazard, ordinary hazard, extra hazard, rack storage with solid shelves and any combination thereof. The sprinkler preferably includes a body having an inlet and an outlet spaced from the inlet to define a passageway to further define a sprinkler axis and a K factor ranging from 11 gpm / (psi)1 / 2 to about 25 gpm / (psi)1 / 2. A deflector is spaced from the outlet to distribute a fire fighting fluid over a maximum protection area of about 196 square feet, and having one or more combination of features as described in the preferred deflector described herein.

For tracing multi-conductor cable runs from multiple phone / data locations throughout a building or complex to a junction facility where the cables need to be systematically identified and connected to a terminal panel, rapid tracing and identification are accomplished by deploying a large number of special low-cost senders, e.g. a set of forty eight senders, connecting as many senders as required to energize every cable at each location via its standard modular jack. Each sender delivers a unique identification signal, e.g. a spoken number from 1 to 48, energizing a corresponding phone cable and / or data cable. With all of the cables thusly energized simultaneously and distinguishably, a technician working with a proximity probe in the junction facility can rapidly identify and tag and / or connect all the cables in an uninterrupted session, without requiring the usual assistant and intercom link, and with no time wasted probing unenergized cables. For larger systems beyond the tracing capability of the set number of senders, a range switch provides three additional extension ranges with unique identification numbers to preserve a numerical sequence when more than one session is required. As an optional refinement, one or more of the senders may be further equipped to enable wire-mapping of all active conductors in the cables.

A network which allows the transmission of small data packets after reading System Information. The network can control a cell to allow access from devices (12) using an extended coverage mode, ECM, outside the normal coverage area of the cell. Initial access from devices in the extended cell coverage area can be scheduled (S104, S110) with the use of a pre-defined scheduled time for the devices to access the cell. A transmission of a schedule for ECM operation to the devices (12) that are using the ECM is provided (S144) after an ECM capable device has been moved from idle to connected mode for the first time, and can be updated (S146) at every scheduled opportunity when the device subsequently moves to connected mode. Additionally, embodiments of the present invention provide a modified RACH procedure (S122, S128, S134, S140) to be followed by devices (12) taking advantage of the ECM.

Methods, apparatuses and systems directed to a wireless network interface supporting directional antenna diversity. Directional diversity, in one embodiment, makes use of antennas with higher gain and non-overlapping patterns to provide communication over a greater area and select the best antenna to receive signals transmitting wireless frames or packets. Certain embodiments optimize wireless network systems using Orthogonal Frequency Division Multiplexed (OFDM) signals where spatial diversity protection provided by spatially-separated, omni-directional antennas is not required. In other embodiments, use and selection of directional antennas allows for sectorization resulting in performance gains such as extended coverage areas, noise reduction, enhanced efficiency, and increased throughput.

A radio communication system (20) is described having a primary-secondary star-like topology, and wherein further secondary stations / devices (24) located outside of the radio coverage area (13) of the primary station are enabled to communicate with the primary station (12) via a first secondary station (22) located within the coverage area of the primary station (12). This is achieved by the first secondary station (22) registering the further secondary station(s) with both itself and the primary station (12), following which messages are exchanged between the primary station and the further secondary station(s) via the first secondary station according to translation of identity codes allocated at the time of registration.

A low pressure, extended coverage, fire protection sprinkler, e.g., of the upright type, suitable for use in protection of at least extra hazard and high piled storage occupancies, in accordance with the 1999 Edition of NFPA 13, has a body with an internal passageway extending between an inlet end and an opposite outlet end, and a deflector mounted to the body by at least one support arm and disposed in alignment with the axis and generally spaced from the outlet end of the internal passageway. The sprinkler has a predetermined K-factor, e.g., of greater than about 16.0. The sprinkler is configured and arranged to deflect flow of water generally radially outwardly and downwardly of the sprinkler in a predetermined spray pattern. Preferably, the predetermined spray pattern has a generally polygonal shape, e.g., a rectangular shape, when viewed at a predetermined distance below the deflector.

An extended coverage pendent sprinkler configured for the fire protection of an occupancy classified as any one of: light hazard, ordinary hazard, extra hazard, rack storage with solid shelves and any combination thereof. The sprinkler preferably includes a body having an inlet and an outlet spaced from the inlet to define a passageway to further define a sprinkler axis and a K factor ranging from 11 gpm / (psi)1 / 2 to about 25 gpm / (psi)1 / 2. A deflector is spaced from the outlet to distribute a fire fighting fluid over a maximum protection area of about 196 square feet, and having one or more combination of features as described in the preferred deflector described herein.

An alternating current (AC) electromagnetic tracker system with increased operational range and an ability to compensate for electromagnetic distortion in the local operating environment. The system uses multiple “N” sources / transmitters located at known positions in a common reference frame. A sensor receives the generated signal of each of the sources and a processor computes a position and orientation of the sensor from each. The processor further uses the known relative position and orientation between the N sources to compensate for distortion in the operating environment.

A radio frequency identification (RFID) system for discs such as CDs, DVDs or minidiscs includes a special RFID transponder and antenna configuration. The discs normally include an outer metallized annular zone where information is stored, a central hole, and an inner annular zone between the hole and the outer annular zone. The transponder may be located in the inner annular zone, with antenna elements coupled to the transponder extending in opposite directions part way across the outer annular zone. Multilayer labels with a recess for the transponder chip, and antenna elements formed by conductive material may be employed to apply the RFID assembly to the discs. A monopole or dipole mode of antenna operation, prominently involving the metallized disc layer, results from the antenna configuration, and serves to more than double the range of the system.

A scheduler for a network processor includes a scheduling queue in which weighted fair queuing is applied to define a sequence in which flows are to be serviced. The scheduling queue includes at least a first subqueue and a second subqueue. The first subqueue has a first range and a first resolution, and the second subqueue has an extended range that is greater than the first range and a lower resolution that is less than the first resolution. Flows that are to be enqueued within the range of highest precision to the current pointer of the scheduling queue are attached to the first subqueue. Flows that are to be enqueued outside the range of highest precision from the current pointer of the scheduling queue are attached to the second subqueue. Numerous other aspects are provided.

An alternating current (AC) electromagnetic tracker system with increased operational range and an ability to compensate for electromagnetic distortion in the local operating environment. The system uses multiple “N” sources / transmitters located at known positions in a common reference frame. A sensor receives the generated signal of each of the sources and a processor computes a position and orientation of the sensor from each. The processor further uses the known relative position and orientation between the N sources to compensate for distortion in the operating environment.