Patent application number | Description | Published |
20080285231 | APPARATUS FOR ENCLOSING ELECTRONIC COMPONENTS - An apparatus for enclosing electronic components comprises a chassis enclosure defining an internal chamber and having an upper portion and a lower portion. The upper portion comprises a first front wall having a length dimension greater than a width dimension, and a first pair of opposing side walls that are each contiguous with the first front wall. The lower portion comprises a second front wall having a length dimension less than the length dimension of the first front wall, and a second pair of opposing side walls that are each contiguous with the second front wall. A plurality of heat sink fins are on each of the first front and side walls, and on each of the second front and side walls. Each of the heat sink fins are configured to be substantially parallel to the length dimension of the first front wall and the second front wall, and extend continuously along each wall. The plurality of heat sink fins has an arcuate-like end view profile on each wall of the chassis enclosure. | 11-20-2008 |
20080291627 | APPARATUS FOR ENCLOSING ELECTRONIC COMPONENTS USED IN TELECOMMUNICATION SYSTEMS - An apparatus for enclosing electronic components such as used in telecommunication systems is disclosed. The apparatus includes a housing defining a chamber, with the housing comprising a front wall having an outer surface and a length dimension greater than a width dimension. A pair of opposing side walls are each contiguous with the front wall, and a pair of opposing end walls are each contiguous with the side walls and the front wall. A plurality of non-removable heat transfer fins are an integral part of the outer surface of the front wall. The fins are positioned at an angle with respect to the length dimension of the front wall, with each of the fins having a continuous uninterrupted structure across the outer surface between the opposing side walls. A removable back cover opposite the front wall is configured to seal the chamber of the housing. | 11-27-2008 |
20100177680 | SYSTEM AND METHOD OF DELIVERING CONTENT USING NETWORKED WIRELESS COMMUNICATION UNITS - A wireless network comprises a plurality of areas of interest and a core network coupled to each of the plurality of areas of interest to route real-time data from each of the plurality of areas of interest. Each of the plurality of areas of interest includes a plurality of wireless communication units. Each wireless communication unit comprises a local cache to store non-real-time data; and a gateway to process non-real-time data requests and provide an interface to a packet network. The plurality of wireless communication units in each of the plurality of areas of interest are networked together such that each wireless communication unit has access to data stored on the local cache of another of the plurality of wireless communication units, wherein the gateway in each of the plurality of wireless communication units is operable to provide the requested non-real-time data, if available, from one of its local cache and the cache of other wireless communication units prior to passing the non-real-time data request to the packet network. | 07-15-2010 |
20100177751 | SYSTEM AND METHOD OF DELIVERING CONTENT OVER A LOCAL WIRELESS SYSTEM - A local wireless system comprises a plurality of wireless communication units to transmit to and receive wireless signals from one or more wireless devices and a soft switch coupled to the plurality of wireless communication units to obtain connection information for each of the one or more wireless devices. The soft switch comprises a memory to store the connection information and location-based data associated with a service area of the plurality of wireless communication units; and a gateway to process non-real-time data requests and provide an interface to a packet network. The soft switch is operable to push the location-based data from the memory to at least a subset of the one or more wireless devices using the connection information stored in the memory. | 07-15-2010 |
20100177759 | SYSTEMS AND METHODS FOR IP COMMUNICATION OVER A DISTRIBUTED ANTENNA SYSTEM TRANSPORT - Systems and methods for IP communication over a distributed antenna system transport are provided. In one embodiment, a method for providing Ethernet connectivity over a distributed antenna system comprises receiving internet protocol (IP) formatted data from an internet protocol device coupled to a remote unit of a distributed antenna system; sampling wireless radio frequency (RF) signals received at the remote unit to produce digitized RF samples; generating a serial data stream for output to a host unit of the distributed antenna system, the serial data stream further comprising a multiple-timeslot communication frame providing a first partition of bandwidth for transporting the digitized RF samples and a second partition of bandwidth for implementing an Ethernet pipe for transporting the IP formatted data. | 07-15-2010 |
20100178914 | SYSTEM AND METHOD OF DELIVERING CONTENT FROM A WIRELESS COMMUNICATION UNIT - In one embodiment, a wireless communication unit is provided. The wireless communication unit comprises a transceiver operable to transmit to and receive wireless signals from one or more wireless devices in a service area of the wireless communication unit; a controller operable to manage operation of the transceiver and to obtain and store connection information for each of the one or more wireless devices; and a cache operable to store location-based data associated with the service area of the wireless communication unit. The controller is further operable to push location-based data from the cache to at least a subset of the one or more wireless devices using the stored connection information for the subset of the one or more wireless devices. | 07-15-2010 |
20100202356 | BACKFIRE DISTRIBUTED ANTENNA SYSTEM (DAS) WITH DELAYED TRANSPORT - A distributed antenna system (DAS) is provided, comprising a host unit and a plurality of remote placed to define a common coverage area. Each of the plurality of remote units is communicatively coupled to the host unit, points at least partially towards the common coverage area, and simulcasts data from the host unit. | 08-12-2010 |
20100215028 | PROVIDING WIRELESS COVERAGE INTO SUBSTANTIALLY CLOSED ENVIRONMENTS - A communication system includes a master host unit, communication links, a remote server unit, an analog communication medium, and remote units. The master host unit communicates analog signals with service provider interfaces using a first set of bands of analog spectrum. The master host unit communicates digitized spectrum in N-bit words across communication links and converts between the first set of bands and N-bit words. The remote server unit communicates N-bit words with the master host unit across communication links and converts between N-bit words and a second set of bands of analog spectrum. The remote server unit communicates the second set of bands with the remote units across the analog communication medium. Each remote unit frequency converts the second set of bands to a third set of bands of analog spectrum and transmits and receives wireless signals, associated with service provider interfaces, over air interfaces. | 08-26-2010 |
20120027145 | DISTRIBUTED DIGITAL REFERENCE CLOCK - A communication system includes master host unit, hybrid expansion unit, and remote antenna unit. Master host unit communicates analog signals with service provider interfaces. Master host unit and hybrid expansion unit communicate N-bit words of digitized spectrum over communication link. Hybrid expansion unit converts between N-bit words and analog spectrum. Hybrid expansion unit and remote antenna unit communicate analog spectrum over analog communication medium. Remote antenna unit transmits and receives wireless signals over air interfaces. Master host unit includes master clock distribution unit that generates digital master reference clock signal. Master host unit communicates digital master reference clock signal over communication link. Hybrid expansion unit receives digital master reference clock signal from master host unit over communication link and generates analog reference clock signal based on digital master reference clock signal. Hybrid expansion unit sends, and remote antenna unit receives, analog reference clock signal across analog communication medium. | 02-02-2012 |
20120106657 | DISTRIBUTED ANTENNA SYSTEM WITH COMBINATION OF BOTH ALL DIGITAL TRANSPORT AND HYBRID DIGITAL/ANALOG TRANPSORT - A communication system includes master host unit, hybrid expansion unit, analog remote antenna unit, and digital remote antenna unit. Master host unit communicates analog signals with at least a first service provider interface using first bands of analog spectrum. Master host unit and hybrid expansion unit communicate first N-bit words of digitized spectrum over first digital link. Hybrid expansion unit converts between first N-bit words and second bands of analog spectrum. Hybrid expansion unit and analog remote antenna unit communicate second bands over analog medium. Analog remote antenna unit transmits and receives first plurality of wireless signals over air interfaces. Master host unit and digital remote antenna unit communicate second N-bit words of digitized spectrum over second digital link. Digital remote antenna unit converts between second N-bit words and third bands of analog spectrum. Digital remote antenna unit transmits and receives second wireless signals over air interfaces. | 05-03-2012 |
20120177026 | DISTINCT TRANSPORT PATH FOR MIMO TRANSMISSIONS IN DISTRIBUTED ANTENNA SYSTEMS - A hybrid expansion unit includes at least one digital communication interface adapted to communicate first and second sets of N-bit words of digitized spectrum with an upstream device. The hybrid expansion unit further includes at least one analog communication interface adapted to communicate first and second sets of bands of analog spectrum with a downstream device. The hybrid expansion unit is adapted to convert between the first set of N-bit words of digitized spectrum and the first set of bands of analog spectrum. The hybrid expansion unit is further adapted to convert between the second set of N-bit words of digitized spectrum and the second set of bands of analog spectrum. The first set of bands of analog spectrum occupy a first frequency range and the second set of bands of analog spectrum occupy a second frequency range. The first frequency range and the second frequency range do not overlap. | 07-12-2012 |
20120249212 | EXTERNAL MOUNTED AMPLIFIERS WITH ACTIVE INTERFERENCE CANCELATION USING DIVERSITY ANTENNAS - A system includes a first external mounted amplifier (EMA) having a first low-noise amplifier (LNA) coupled to a first antenna, a second EMA having a second LNA coupled to a second antenna, a first splitter coupled between the first antenna and the first LNA, a first phase shifter coupled to the first splitter, and a second mixer coupled to the first phase shifter. The first LNA is operable to receive a first input signal from first antenna. The second LNA is operable to receive a second input signal from second antenna. The first splitter is operable to derive a first sampling signal from first signal. The first phase shifter is operable to shift the phase of first sampling signal to create a second cancelation signal. The second mixer is operable to mix a second input signal derived from second signal with second cancelation signal to create a second output signal. | 10-04-2012 |
20120263152 | SYSTEMS AND METHODS FOR IP COMMUNICATION OVER A DISTRIBUTED ANTENNA SYSTEM TRANSPORT - Systems and methods for IP communication over a distributed antenna system transport are provided. In one embodiment, a method for providing Ethernet connectivity over a distributed antenna system comprises receiving internet protocol (IP) formatted data from an internet protocol device coupled to a remote unit of a distributed antenna system; sampling wireless radio frequency (RF) signals received at the remote unit to produce digitized RF samples; generating a serial data stream for output to a host unit of the distributed antenna system, the serial data stream further comprising a multiple-timeslot communication frame providing a first partition of bandwidth for transporting the digitized RF samples and a second partition of bandwidth for implementing an Ethernet pipe for transporting the IP formatted data. | 10-18-2012 |
20120313821 | ANTENNA MODULE HAVING INTEGRATED RADIO FREQUENCY CIRCUITRY - One embodiment is directed to an antenna module comprising integrated RF circuitry comprising at least one of a transmitter and a receiver. The module further comprises an antenna element operatively coupled to the integrated RF circuitry, the antenna element comprising first and second substantially co-planar portions. The integrated RF circuitry is disposed on an interior part of at least one of the first and second substantially co-planar portions. Other embodiments are disclosed. | 12-13-2012 |
20120329523 | DISTRIBUTED ANTENNA SYSTEM ARCHITECTURES - One embodiment is directed to a distributed antenna system comprising a host unit and at least one remote antenna unit that is communicatively coupled to the host unit. The remote antenna unit is configured to perform self-interference suppression processing in an upstream signal path using, as an input thereto, a feedback signal derived from the downstream radio frequency signal radiated from the antenna. Other embodiments are disclosed. | 12-27-2012 |
20130003658 | EVOLVED DISTRIBUTED ANTENNA SYSTEM - One embodiment is directed to a distributed antenna system (DAS) including a host unit and a plurality of remote units. The host unit includes a plurality of base transceiver stations and a switch. Each of the base transceiver stations is configured to provide a downstream baseband digital signal to the switch and to receive an upstream baseband digital signal from the switch, wherein each downstream baseband digital signal and upstream baseband digital signal is a digital representation of the RF channel at baseband of the respective base transceiver station. The switch is configured to route each of the downstream baseband digital signals to a respective subset of the remote units as one or more downstream serial data streams and to route each of the upstream baseband digital signals from one or more upstream serial data streams to a respective subset of the base transceiver stations. | 01-03-2013 |
20130107763 | DISTRIBUTED ANTENNA SYSTEM USING TIME DIVISION DUPLEXING SCHEME | 05-02-2013 |
20130210490 | TIMING ADJUSTMENTS FOR SMALL CELL DISTRIBUTED ANTENNA SYSTEMS - A distributed antenna system includes a host unit communicatively coupled to a first service provider interface which receives a first signal from the first service provider interface; and a first remote antenna unit communicatively coupled to the host unit, the first remote antenna unit having a first antenna. A base station to which the distributed antenna system is communicatively coupled is configured with a subscriber access timing window having a minimum allowed delay and a maximum allowed delay. The distributed antenna system is configured so that a first total delay between the host unit and the first remote antenna unit is equal to or greater than the minimum allowed delay. The first antenna of the first remote antenna unit is configured to communicate the first signal to a first subscriber unit. | 08-15-2013 |
20130272441 | DISTINCT TRANSPORT PATH FOR MIMO TRANSMISSIONS IN DISTRIBUTED ANTENNA SYSTEMS - A hybrid expansion unit includes at least one digital communication interface adapted to communicate first and second sets of N-bit words of digitized spectrum with an upstream device. The hybrid expansion unit further includes at least one analog communication interface adapted to communicate first and second sets of bands of analog spectrum with a downstream device. The hybrid expansion unit is adapted to convert between the first set of N-bit words of digitized spectrum and the first set of bands of analog spectrum. The hybrid expansion unit is further adapted to convert between the second set of N-bit words of digitized spectrum and the second set of bands of analog spectrum. The first set of bands of analog spectrum occupy a first frequency range and the second set of bands of analog spectrum occupy a second frequency range. The first frequency range and the second frequency range do not overlap. | 10-17-2013 |
20130272463 | DISTRIBUTED DIGITAL REFERENCE CLOCK - A communication system includes master host unit, hybrid expansion unit, and remote antenna unit. Master host unit communicates analog signals with service provider interfaces. Master host unit and hybrid expansion unit communicate N-bit words of digitized spectrum over communication link. Hybrid expansion unit converts between N-bit words and analog spectrum. Hybrid expansion unit and remote antenna unit communicate analog spectrum over analog communication medium. Remote antenna unit transmits and receives wireless signals over air interfaces. Master host unit includes master clock distribution unit that generates digital master reference clock signal. Master host unit communicates digital master reference clock signal over communication link. Hybrid expansion unit receives digital master reference clock signal from master host unit over communication link and generates analog reference clock signal based on digital master reference clock signal. Hybrid expansion unit sends, and remote antenna unit receives, analog reference clock signal across analog communication medium. | 10-17-2013 |
20140146797 | TIMESLOT MAPPING AND/OR AGGREGATION ELEMENT FOR DIGITAL RADIO FREQUENCY TRANSPORT ARCHITECTURE - A serial link interface unit includes serialized data stream interfaces configured to receive a serialized data stream having a data rate and set of timeslots; an aggregate serialized data stream interface configured to communicate an aggregate serialized data stream having aggregate data rate and plurality of aggregate timeslot sets each coming sequentially in time, wherein a second aggregate timeslot set comes after a first aggregate timeslot set; and wherein the serial link interface unit interleaves data from the different serialized data streams received at the plurality of first interfaces by mapping data from a first timeslot from each different serialized data stream to the first aggregate timeslot set in the aggregate serialized data stream and mapping data from a second timeslot from each different serialized data stream to the second aggregate timeslot set in the aggregate serialized data stream. | 05-29-2014 |
20140146905 | FLEXIBLE, RECONFIGURABLE MULTIPOINT-TO-MULTIPOINT DIGITAL RADIO FREQUENCY TRANSPORT ARCHITECTURE - A distributed antenna system includes network interfaces configured to receive signals from devices external to distributed antenna system and to convert signals to downlink serialized data streams; distributed antenna switch communicatively coupled to network interfaces by digital communication links, distributed antenna switch configured to receive downlink serialized data stream from network interfaces across corresponding digital communication link; distributed antenna switch further configured to aggregate downlink serialized data streams into aggregate downlink serialized data stream; remote antenna unit communicatively coupled to distributed antenna switch by digital communication link that receives aggregate downlink serialized data stream across digital communication link, remote antenna unit further configured to extract downlink serialized data streams from aggregate downlink serialized data stream; remote antenna unit having radio frequency converter configured to convert downlink serialized data stream into radio frequency band and radio frequency transceiver/antenna pair configured to transmit signals in radio frequency band to subscriber unit. | 05-29-2014 |
20140146906 | FORWARD-PATH DIGITAL SUMMATION IN DIGITAL RADIO FREQUENCY TRANSPORT - A distributed antenna switch includes a plurality of first interfaces, each of the plurality of first interfaces configured to receive a downlink serialized data stream from a different network interface across a different first digital communication link; at least one second interface, the at least one second interface configured to communicate an aggregate downlink serialized data stream to a remote antenna unit over a second digital communication link; and wherein the distributed antenna switch is configured to aggregate the plurality of downlink serialized data streams from the different network interfaces into the aggregate downlink serialized data stream. | 05-29-2014 |
20140219140 | DISTRIBUTED ANTENNA SYSTEM USING TIME DIVISION DUPLEXING SCHEME - A communication system includes a master host unit that communicates wireless spectrum with a service provider interface using analog spectrum. Master host unit communicates digitized spectrum in N-bit words over a digital communication link. Master host unit converts between analog spectrum and N-bit words of digitized spectrum. Communication system includes hybrid expansion unit coupled to master host unit by digital communication link. Hybrid expansion unit communicates N-bit words of digitized spectrum with master host unit across digital communication link. Hybrid expansion unit converts between N-bit words of digitized spectrum and analog spectrum. Hybrid expansion unit communicates analog spectrum across analog communication link to analog remote antenna unit. Analog remote antenna unit communicates wireless signals using first antenna. Communication system further includes a switch in a data path between service provider interface and antenna. The switch selects between transmit path and receive path in response to switching control signal. | 08-07-2014 |
20140241224 | UNIVERSAL REMOTE RADIO HEAD - A distributed base station radio system includes first channelized to broadband conversion unit that receives first downlink channelized data for first radio frequency band from first channelized radio frequency source; and first universal remote radio head communicatively coupled to first channelized to broadband conversion unit. First channelized to broadband conversion unit converts first downlink channelized data into a first downlink broadband signal. First channelized to broadband conversion unit communicates the first downlink broadband signal to first universal remote radio head. First universal remote radio head receives first downlink broadband signal. First universal remote radio head frequency converts the first downlink broadband signal into first downlink radio frequency signals in first radio frequency band. First universal remote radio head is further configured to transmit first downlink radio frequency signals in first radio frequency band to first subscriber unit. | 08-28-2014 |
20150078258 | EVOLVED DISTRIBUTED ANTENNA SYSTEM - One embodiment is directed to a method for generating and distributing wireless RF signals at a host unit in a distributed antenna system. At least a first subset of IP data from an IP network entity is routed to a first base transceiver station within the host unit, and at least a second subset of the IP data is routed to a second base transceiver station within the host unit. The IP data is baseband processed by the first and second base transceiver stations to generate a first digital representation of a first RF signal and a second digital representation of a second RF signal. The first digital representation of the first RF signal is routed to a first subset of the plurality of remote units and the second digital representation of the second RF signal is routed to a second subset of the plurality of remote units. | 03-19-2015 |
20150087329 | SYSTEMS AND METHODS FOR LOCATION DETERMINATION - Embodiments described by the present disclosure provide improved systems and methods for determining the location of a mobile device. In one embodiment, a system comprises a distributed antenna system (DAS) configured to relay signals to and from the mobile device. Further, the DAS comprises a hub unit; and multiple remote antenna units coupled to the hub unit, wherein signals relayed between the remote antenna units and the hub unit are delayed such that different signal paths between the remote antenna units and the hub unit have different delay times. The system also comprises a base station coupled to the hub unit, wherein the base station receives the signals from the hub unit and determines the delay of signals transmitted between the mobile device and the base station, wherein the system determines the location of the mobile device by using the delay for RF pattern matching. | 03-26-2015 |