WO2008027213A2 - Distributed antenna communications system and methods of implementing thereof - Google Patents
Distributed antenna communications system and methods of implementing thereof Download PDFInfo
- Publication number
- WO2008027213A2 WO2008027213A2 PCT/US2007/018249 US2007018249W WO2008027213A2 WO 2008027213 A2 WO2008027213 A2 WO 2008027213A2 US 2007018249 W US2007018249 W US 2007018249W WO 2008027213 A2 WO2008027213 A2 WO 2008027213A2
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- WIPO (PCT)
- Prior art keywords
- port
- base station
- repeater hub
- hub
- port repeater
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
Definitions
- the present invention relates to the field of wireless communications and, more particularly, to a distributed antenna system for wireless communications.
- a conventional distributed antenna system provides indoor coverage for wireless communications. Transmitted power is divided among several antennas in distributed indoor locations so as to provide a large coverage area using less transmitted power than would be required by a single antenna system.
- the antennas of a typical DAS are connected to a cellular base station and are used for cellular mobile communications .
- a DAS can be implemented using passive or active components.
- a passive DAS is implemented using passive splitters and, to minimize signal degradation between the base station and antennas, large diameter coaxial cables are typically employed.
- Installation of a conventional passive DAS requires a planning phase that includes site surveys and system set-up by trained experts in order to ensure that the coverage area and signal strength is suitable throughout the system. Accordingly, passive DAS systems tend to be expensive to implement.
- An active DAS employs active amplifiers and, in some cases, frequency converters that reduce a radio frequency (RF) signal from the base station to an intermediate frequency (IF) for communication to antenna units. At the antenna units, the IF signals are up-converted to RF again.
- RF radio frequency
- IF intermediate frequency
- Such active DAS implementations require only thin coaxial cable, though the performance tends to be improved over that of passive DAS implementations. So that the active DAS is able to accommodate various communication channels and frequencies used by mobile equipment and base stations, the active components need to process a wide range of frequency bands. Due to the requirement for active components that process a wide range of frequency bands, active DAS systems also tend to be expensive to implement. [0005] Therefore, what is needed is an improved distributed antenna system. It is toward this end that the present invention is directed.
- a distributed antenna system comprises: a base station configured for communication with a telecommunications network; a multi-port repeater hub connected to the base station to receive a communications signal from the base station and to distribute the communications signal to a plurality of ports of the multi-port repeater hub, the multi-port repeater hub comprising a scanner for scanning a plurality of frequency channels to identify one or more channels of the communications signal received from the base station; and a plurality of antenna units, each coupled to one of the ports of the multi-port repeater hub.
- Figure 1 illustrates a distributed antenna communications system in accordance with an embodiment of the present invention
- Figure 2 illustrates a multi-port repeater hub in accordance with an embodiment of the present invention
- Figure 3 illustrates a method of selecting and setting frequency bandwidth in a distributed antenna system in accordance with an embodiment of the present invention
- Figure 4 illustrates an antenna unit in accordance with an embodiment of the present invention.
- FIG. 5 illustrates a distributed antenna communications system in accordance with an alternative embodiment of the present invention. Detailed Description of the Invention
- FIG. 1 illustrates a distributed antenna communications system 100 in accordance with an embodiment of the present invention.
- a pico base transceiver subsystem (which may also be referred to as a BTS or base station) 102 is communicatively coupled to a communications network 104 via a backhaul link 106.
- the backhaul 106 is coupled to a base station controller (BSC) 108, which is, in turn, coupled to a mobile switching center (MSC) 110.
- BSC base station controller
- MSC mobile switching center
- the MSC 110 is coupled to a public switched telephone network (PSTN) 112 (e.g. for voice communications) and may also be coupled the Internet 114 (e.g. for data communications).
- PSTN public switched telephone network
- Internet 114 e.g. for data communications
- the BSC 108 may perform various conventional functions including radio channel allocation, call handovers among base stations, configuring the base station 102, handling alarms and performing network management functions.
- the MSC 110 may perform various conventional functions including circuit switching, and providing applications and call features to mobile subscribers, such as call ringing and roaming.
- certain of the features conventionally performed by the BSC 108 and MSC 110 may instead be performed by the base station 102.
- the base station 102 may include a local server which is configured with a Linux operating system to perform these functions.
- the base station 102 is also communicatively coupled to multi-port repeater hub 116 by, for example, a wireless link.
- the base station 102 may be located at the site of a cellular service provider.
- the hub 116 is communicatively coupled to a plurality of antenna units 118. Together, the antenna units form one or more coverage areas.
- the hub 116 and antenna units 118 are located indoors.
- the hub 116 may be located in a utility closet of commercial building, while the antenna units 118 may be distributed throughout the building so as to form one or more coverage areas that substantially include the occupied areas within the building.
- the antenna units 1 18 are coupled to the hub 116 by links 122.
- the links 122 comprise cabling and connectors that are commonly used for computer networking within commercial buildings, such as CAT 5 cable and RJ-45 connectors or coaxial cables (e.g., "thin" coax).
- the hub 116 and antenna units 118 may be installed in a building using cabling that is pre-existing in the building.
- Mobile communications equipment 120 within a coverage area is communicatively coupled to the communications network 104 via one or more of the antenna units 118, the hub 116, the base station 102 and the backhaul 106.
- the base station 102 may be a pico base station.
- the pico base station outputs low power (i.e. less than one watt), comprises a single transceiver unit and uses an Internet protocol (IP) backhaul connection in which voice signals are converted to EP packets for the communication via the backhaul 106.
- IP Internet protocol
- the pico base station may use a Tl or El connection for the backhaul 106.
- Communications via the pico base station 102 may be within a single channel of a particular communications band.
- CDMA communications in the 1900 MHz frequency band i.e. 1850-1910 MHz uplink and 1930-1990 MHz downlink
- the pico base station 102 may operate within a single of one of these 1.25 MHz channels for each of the uplink and downlink.
- the base station 102 may operate in a single 200 kHz GSM channel within the 850 MHz frequency band (i.e. 824-849 MHz uplink and 869-894 MHz downlink).
- the base station 102 may be macro base station or a micro base station.
- the macro base station comprises multiple transceiver units, outputs high power (i.e. 10 watts or more) and is communicatively coupled to the communications network 104 via the backhaul 106 which includes one or more Tl connections (in the United States) or El connections (in Europe).
- the micro base station comprises multiple transceiver units and is communicatively coupled to a telephone network via a backhaul connection.
- a micro base station outputs relatively low power (i.e. 1-2 watts) to the antennas.
- Multiple base stations 102 may be coupled to the multi-port repeater hub 116.
- two or more pico base stations, each operating in a respective uplink and downlink channel may be communicatively coupled to the hub 116.
- the multiple base stations 102 may also be communicatively coupled to the base station controller 108 or to one or more different base station controllers.
- FIG 2 illustrates the multi-port repeater hub 116 of Figure 1 in accordance with an embodiment of the present invention.
- the hub 116 includes a base station port 124 which is configured to be communicatively coupled to the base station 102 ( Figure 1) or to multiple base stations 102, e.g., via one or more wireless links.
- the base station port 124 is communicatively coupled to a signal regenerator 126.
- the signal regenerator 126 receives downlink communications signals from the base station port 124 and distributes the signals to distribution ports 128.
- the signal regenerator 126 may also perform signal processing functions, such as filtering and amplifying. From the distribution ports 128, the signals are provided to the antenna units 118 ( Figure 1).
- Uplink signals from the antenna units 118 are received at the distribution ports 128.
- the signal regenerator 126 receives the uplink communication signals from the distribution ports 128 and provides them to the base station port 124.
- the uplink signals are received by the base station 102 from the base station port 124. If the hub 116 receives multiple signals from different base stations, these signals may be combined. For example, a combiner may be coupled to the port 124 to combine the signals prior to their being passed to other components of the hub 116.
- the signal regenerator 126 performs frequency conversion by converting radio frequency (RF) signals received from the base station port 124 to intermediate frequency (IF) signals which are provided to the distribution ports 128. In this case, the signal regenerator 126 also converts IF signals received from the distribution ports 128 to RF signals which are provided to the base station port 124. [0023] In an alternative embodiment, the signal regenerator 126 converts RF signals received from the base station port to baseband signals which are then provided to the distribution ports 128. For example, the RF signals may be separated into in-phase (I) and quadrature (Q) signal components that are then digitally sampled and multiplexed for transmission at baseband to the distribution ports 128.
- I in-phase
- Q quadrature
- the signal regenerator 126 may also convert baseband signals (e.g., I and Q digital signal components) received from the distribution ports 128 to RF for provision to the base station port 124. Rather than multiplexing the I and Q signals, they may be communicated separately (e.g., using separate conductors within a CAT-5 cable).
- baseband signals e.g., I and Q digital signal components
- the multi-port hub 116 may include a channel scanner 130 fo ⁇ performing channel scanning functions and a controller 132 for controlling operation of the hub 116.
- the scanner 130 intercepts the signal(s) received from the base station 102 at the base station port 124 in order to identify one or more active channels in which the base station 102 operates, or in the case of multiple base stations, the channels in which each of base stations operates.
- the scanner 130 may report its measurement results to the hub controller 132 which then configures the signal regenerator 126 to operate on the one or more identified channels. This may include setting a center frequency and bandwidth of filters, amplifiers and other signal processing elements of the signal regenerator 126 for the identified channels.
- the channel identification and configuration functions are performed by the hub 116 automatically (i.e. without user intervention) so as to facilitate implementation of the distributed antenna system 100.
- Figure 3 illustrates a method 134 of selecting and setting frequency bandwidth in a distributed antenna system in accordance with an embodiment of the present invention.
- the hub 116 ( Figure 2) includes appropriate software and/or hardware to perform the steps of the method 134.
- an installer does not need to manually configure the hub 116. This makes installation and implementation of the system 100 easier and tends to avoid the need for a specially-trained expert to install the system 100.
- a step 136 scanning of the channels is initiated.
- scanning of the channels may be initiated in response to the hub 116 being connected to the base station 102, or upon the hub 116 being powered on.
- scanning of the channels may be initiated upon detection of a loss of the signal from the base station 102 or at periodic intervals.
- a step 138 the channels are scanned. This may be accomplished by the scanner 130 scanning across a frequency range (e.g., the 1900 MHz band) in increments that are no greater than a channel bandwidth (e.g., 200 kHz) and measuring received signal strength (i.e. RSSI) at each measurement frequency.
- a frequency range e.g., the 1900 MHz band
- RSSI received signal strength
- a particular channel in which the base station 102 transmits a signal to the hub 116 can be identified since it can be expected to have a higher measured received signal strength as compared to other channels.
- the frequency range of interest may be divided into a number m of intervals that are no greater than the channel bandwidth. Then, a variable n may be initialized to a value of 0, indicating the first interval.
- the received signal strength may be measured and recorded. Then, the variable n may be incremented by one so that it is equal to 1. While the value of the variable n is equal to 1, the received signal strength may be measured and recorded. This process may then be repeated for each interval until the value of n is equal to m, which indicates that the entire frequency range of interest has been scanned. [0028] In this manner, one or more active downlink channels are identified. In step 140, once the one or more downlink channels are identified through scanning, the signal regenerator 126 is configured to operate on these downlink channels and to operate on a corresponding uplink channel for each downlink channel.
- the hub controller 132 setting one or more appropriate parameters of the signal regenerator 126 which are used to tune frequency conversion and amplification circuits of the signal regenerator 126.
- the signal regenerator 126 may be configured to operate on a particular channel as soon as the channel is identified and while scanning of remaining channels continues.
- the base station 102 transmits in only one uplink and one downlink channel.
- the single uplink and single downlink channels are identified and the regenerator 126 is appropriately configured.
- configuring the signal regenerator 126 may also include setting the channel bandwidth.
- the channel bandwidth is fixed.
- the bandwidth may be fixed at 5 MHz, which is sufficiently wide to accommodate the channel width for common cellular communications protocols, such as GSM (which requires a 200 kHz channel bandwidth), CDMA (which requires a 1.25 MHz channel bandwidth) and UMTS (which requires a 5 MHz channel bandwidth).
- the DAS system 100 may set the bandwidth based on the detected bandwidth and/or protocol of the signal.
- the scanner 130 and/or hub controller 132 may also test the received signal to identify the bandwidth of its channel(s) which may be different depending upon the protocol with which it operates.
- the scanner 130 detects a GSM signal, it sets the bandwidth to 200 kHz; if it detects a CDMA signal, it sets the bandwidth to 1.25 MHz; if it detects a UMTS signal, it sets the bandwidth to 1.25 MHz, and so on. If the hub 116 receives multiple adjacent or closely-spaced channels, the bandwidth of the signal regenerator 126 may be adjusted to encompass the multiple channels. For example, if three CDMA channels of 1.25 MHz bandwidth are adjacent, the bandwidth should be set to at least 3.75 MHz so that all three channels are encompassed.
- the protocol is identified by determining the approximate channel width, hi this case, the channel scanning is performed at intervals that are sufficiently small that the narrowest channel width of interest can be detected. For example, assume that 200 kHz, which is the channel width for GSM, is the narrowest channel width of interest. By taking received signal strength measurements at intervals of approximately 200 kHz or less, a GSM signal will result in several low value measurements, indicating inactive channels, and for an active channel, a single signal strength measurement with a higher value will be immediately preceded by a medium value signal strength measurement and immediately followed by a medium value signal strength measurement. These two medium strength adjacent measurements reflect sidebands.
- the sidebands can be expected to be detected as two medium value signal strength measurements immediately preceding the high value measurements and two medium value signal strength measurements immediately following the high value measurements.
- the sidebands can be expected to be detected as two medium value signal strength measurements immediately preceding the high value measurements and two medium value signal strength measurements immediately following the high value measurements.
- the sidebands can be expected to be detected as two medium value signal strength measurements immediately preceding the high value measurements and two medium value signal strength measurements immediately following the high value measurements.
- the channel bandwidth is 5.0 GHz or approximately 25 times 200 kHz.
- FIG. 4 illustrates an antenna unit 118 in accordance with an embodiment of the present invention.
- the antenna unit 118 includes an interface port 142 which is configured to be communicatively coupled to the hub 116 ( Figure 1) via links 122 ( Figure 1).
- the antenna unit 118 includes a frequency converter 144, which may convert IF or baseband signals received from the hub 116 via the interface 142 into RF signals for transmission via an antenna 146 to mobile communications equipment 120. Conversely, RF signals received by the antenna 146 from mobile communications equipment 120 may be converted to IF or baseband for communication to the hub 116.
- the antenna unit 118 may also include a controller 148 for controlling operation of the antenna unit 118.
- the antenna unit controller 148 receives a message from the hub 116 which identifies the uplink and downlink channels in which the base station 102 operates.
- the frequency converter 144 may be configured to send signals to the antenna 146 and to receive signals from the antenna 146 using these same channels.
- the antenna 114 of the antenna unit 118 is integrated with a housing for the antenna unit 118 such that the antenna 1 14 and house are one-piece and no additional step is required to set up the antenna 114 (other than installing the antenna unit 118). This also makes installation and implementation of the system 100 easier and tends avoids the need for a specially-trained expert to install the system 100.
- the DAS system 100 may use cabling and connectors that are commonly used for computer networking within commercial buildings, such as CAT 5 cable and RJ-45 connectors or coaxial cable. These cables typically run from a telecommunications utility room or closet to offices and other work spaces within a commercial building.
- each antenna unit 118 may include a connection indicator 150 for providing an indication of a correct connection between the hub 116 and the antenna unit 118.
- Each antenna unit 118 may be plugged into an RJ-45 outlet which is connected to the hub 116 via a cable (e.g., a CAT 5 cable).
- the antenna units 118 may thus receive power from the hub 116 via the cable and outlet such that no additional power source is needed for the antenna units 118.
- power may be delivered using Ethernet cables in accordance with Power over Ethernet (POE) technology.
- POE Power over Ethernet
- a first light emitting diode (LED) of the connection indicator 150 may be illuminated.
- connection indicator 150 may also sense whether the antenna unit 118 is able to exchange communication messages with the hub 116 (e.g., the messages may be exchanged between the hub controller 132 and the antenna unit controller 148). If so, a second LED of the connection indicator 150 may be illuminated. This also makes installation and implementation of the system 100 easier and tends avoids the need for a specially-trained expert to install the system 100. Rather than illuminating the first and second LEDs, first and second acoustic tones may be emitted by the connection indicator 150 to make the corresponding indications.
- the hub 116 may also include a connection indicator 152 (Figure 2) in each of the distribution ports 128.
- a connection indicator 152 (Figure 2) in each of the distribution ports 128.
- a connection indicator 152 senses power being drawn by the antenna unit 118, (e.g., by sensing current)
- a first LED of the connection indicator 152 may be illuminated.
- the connection indicator 152 may also sense whether the hub 116 is able to exchange communication messages with the antenna unit 118. If so, a second LED of the connection indicator 152 may be illuminated. Rather than illuminating the first and second LEDs, first and second acoustic tones may be emitted by the connection indicator 152 to make the corresponding indications.
- signal power at each antenna unit 118 is adjusted automatically so that signal loss between the hub 116 and each antenna units 118 is compensated independently of the amount of loss present between the hub 116 and a particular antenna unit 118. This may be accomplished for the downlink by employing automatic gain control circuitry in the antenna unit controller 148 and/or frequency converter 144 in each antenna unit 118 so that the antenna unit 118 outputs a predetermined power level to its antenna 146 regardless of the signal power received from the hub 116.
- the power level for signals sent by each antenna unit 118 to the hub 116 may be adjusted by a similar amount as is the downlink signal. This assumes that cable loss is similar in both directions between the hub 116 and each antenna unit 118.
- the uplink and downlink channels may be at different IF frequencies, the cable loss may be different for the uplink and the downlink. Accordingly, the power level for the uplink may also be adjusted to compensate for this expected difference in the amount of loss.
- This automatic signal gain control also makes installation and implementation of the system 100 easier and tends avoids the need for a specially- trained expert to install the system 100.
- the hub controller 132 may measure round-trip signal loss between the hub 116 and each of the antenna units 118 (e.g., by activating a loop switch in each antenna unit 118). The hub controller 132 may use this information to automatically set downlink transmit levels in the hub 116. The hub controller 116 may also send a message to each antenna unit 118 which causes the antenna unit 118 to set its uplink transmit power level based on the measured round-trip signal loss. The downlink and uplink power levels between the hub 116 and each antenna unit 118 may be set independently of the others since each may experience different losses. This automatic setting of downlink and uplink power levels also makes installation and implementation of the system 100 easier and tends avoids the need for a specially- trained expert to install the system 100.
- the hub 116 includes a wireless modem 154.
- the modem may send and receive messages via the base station 102 and network 104 to and from an operating center of a network operator. For example, control messages may be received by the modem which cause the output power of the hub 116 and antenna units 118 to be set by the network operator based on round-trip signal loss measured by the hub 1 16 or based on other measured parameters.
- the network operator may also receive and respond to alarm messages that identify fault conditions in the DAS system 100.
- the hub 116 may be communicatively coupled to the network 104 via a network connection, such as Ethernet, rather than by the modem 154 for communicating control and alarm messages between the hub 116 and the operating center of the network operator.
- Figure 5 illustrates a distributed antenna communications system 156 in accordance with an alternative embodiment of the present invention. The system 156 performs the same functions as the system 100 described above with the following differences.
- the hub 116 is communicatively coupled to the network 104 via a connector 158 and cable 160.
- the cable 160 may be connected to a base station controller (e.g., BSC 108 of Figure 1).
- the connector 158 may be coupled to a network switch 162, such as an Ethernet network packet switch.
- the switch 160 may be connected to the controller 132 and to a connector 164.
- the base station 102 is communicatively coupled to the hub 116 via the port 124 via a link 166.
- the link 166 may be a wireless link as in Figure 1.
- the base station 102 may also be communicatively coupled to the hub 116 via a link 168 and the connector 164.
- the link 168 is a network link such as an Ethernet link.
- the base station 102 is communicatively coupled to the network 104 via the hub 116 (via the cables 160 and 168 and the switch 162) rather than being directly connected to the network 104 as in Figure 1.
- the cables 160, 168 and switch 160 serves as a backhaul for the base station 102 and hub 116.
- communications between the controller 132 and the network 104 and between the controller 132 and the base station 102 are via the switch 162.
- Multiple base stations 102 may be connected to the hub 116 and, thus, multiple base stations 102 may be communicatively coupled to the network 104 via the hub 116 and switch 162.
- a separate port of the switch 162 may be dedicated to each such base station.
- Figure 5 also shows a server 170 which may be coupled to the switch 162.
- the server 170 may comprise a general-purpose computer system and storage and may include an operating system such as Linux.
- the server 170 may provide additional functionality to the hub 116. For example, certain of the features conventionally performed by the BSC 108 and MSC 110 of the network 104 may instead be performed by the hub 116 in conjunction with the server 170.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES07811395.8T ES2556990T3 (en) | 2006-08-29 | 2007-08-17 | Distributed antenna communications system and method to implement it |
CA2662840A CA2662840C (en) | 2006-08-29 | 2007-08-17 | Distributed antenna communications system and methods of implementing thereof |
EP07811395.8A EP2067269B1 (en) | 2006-08-29 | 2007-08-17 | Distributed antenna communications system and method of implementing thereof |
JP2009526619A JP5055369B2 (en) | 2006-08-29 | 2007-08-17 | Distributed antenna communication system and its implementation method |
CN200780039284.3A CN101542928B (en) | 2006-08-29 | 2007-08-17 | Distributed antenna communications system and methods of implementing thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11/511,646 US7848770B2 (en) | 2006-08-29 | 2006-08-29 | Distributed antenna communications system and methods of implementing thereof |
US11/511,646 | 2006-08-29 |
Publications (2)
Publication Number | Publication Date |
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WO2008027213A2 true WO2008027213A2 (en) | 2008-03-06 |
WO2008027213A3 WO2008027213A3 (en) | 2008-11-06 |
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PCT/US2007/018249 WO2008027213A2 (en) | 2006-08-29 | 2007-08-17 | Distributed antenna communications system and methods of implementing thereof |
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US (1) | US7848770B2 (en) |
EP (1) | EP2067269B1 (en) |
JP (1) | JP5055369B2 (en) |
CN (1) | CN101542928B (en) |
CA (1) | CA2662840C (en) |
ES (1) | ES2556990T3 (en) |
WO (1) | WO2008027213A2 (en) |
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US7848654B2 (en) | 2006-09-28 | 2010-12-07 | Corning Cable Systems Llc | Radio-over-fiber (RoF) wireless picocellular system with combined picocells |
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US9525488B2 (en) | 2010-05-02 | 2016-12-20 | Corning Optical Communications LLC | Digital data services and/or power distribution in optical fiber-based distributed communications systems providing digital data and radio frequency (RF) communications services, and related components and methods |
US9531452B2 (en) | 2012-11-29 | 2016-12-27 | Corning Optical Communications LLC | Hybrid intra-cell / inter-cell remote unit antenna bonding in multiple-input, multiple-output (MIMO) distributed antenna systems (DASs) |
US9565596B2 (en) | 2011-08-29 | 2017-02-07 | Commscope Technologies Llc | Configuring a distributed antenna system |
US9602210B2 (en) | 2014-09-24 | 2017-03-21 | Corning Optical Communications Wireless Ltd | Flexible head-end chassis supporting automatic identification and interconnection of radio interface modules and optical interface modules in an optical fiber-based distributed antenna system (DAS) |
US9621293B2 (en) | 2012-08-07 | 2017-04-11 | Corning Optical Communications Wireless Ltd | Distribution of time-division multiplexed (TDM) management services in a distributed antenna system, and related components, systems, and methods |
US9647758B2 (en) | 2012-11-30 | 2017-05-09 | Corning Optical Communications Wireless Ltd | Cabling connectivity monitoring and verification |
US9661781B2 (en) | 2013-07-31 | 2017-05-23 | Corning Optical Communications Wireless Ltd | Remote units for distributed communication systems and related installation methods and apparatuses |
US9673904B2 (en) | 2009-02-03 | 2017-06-06 | Corning Optical Communications LLC | Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof |
US9681313B2 (en) | 2015-04-15 | 2017-06-13 | Corning Optical Communications Wireless Ltd | Optimizing remote antenna unit performance using an alternative data channel |
US9715157B2 (en) | 2013-06-12 | 2017-07-25 | Corning Optical Communications Wireless Ltd | Voltage controlled optical directional coupler |
US9730228B2 (en) | 2014-08-29 | 2017-08-08 | Corning Optical Communications Wireless Ltd | Individualized gain control of remote uplink band paths in a remote unit in a distributed antenna system (DAS), based on combined uplink power level in the remote unit |
US9729267B2 (en) | 2014-12-11 | 2017-08-08 | Corning Optical Communications Wireless Ltd | Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting |
US9775123B2 (en) | 2014-03-28 | 2017-09-26 | Corning Optical Communications Wireless Ltd. | Individualized gain control of uplink paths in remote units in a distributed antenna system (DAS) based on individual remote unit contribution to combined uplink power |
US9807700B2 (en) | 2015-02-19 | 2017-10-31 | Corning Optical Communications Wireless Ltd | Offsetting unwanted downlink interference signals in an uplink path in a distributed antenna system (DAS) |
US9894623B2 (en) | 2012-09-14 | 2018-02-13 | Andrew Wireless Systems Gmbh | Uplink path integrity detection in distributed antenna systems |
US9913147B2 (en) | 2012-10-05 | 2018-03-06 | Andrew Wireless Systems Gmbh | Capacity optimization sub-system for distributed antenna system |
US9948349B2 (en) | 2015-07-17 | 2018-04-17 | Corning Optical Communications Wireless Ltd | IOT automation and data collection system |
US9974074B2 (en) | 2013-06-12 | 2018-05-15 | Corning Optical Communications Wireless Ltd | Time-division duplexing (TDD) in distributed communications systems, including distributed antenna systems (DASs) |
IT201600131387A1 (en) * | 2016-12-27 | 2018-06-27 | Teko Telecom S R L | RECONFIGURABLE REMOTE RADIO UNIT FOR ANTENNA DISTRIBUTED SYSTEMS |
US10096909B2 (en) | 2014-11-03 | 2018-10-09 | Corning Optical Communications Wireless Ltd. | Multi-band monopole planar antennas configured to facilitate improved radio frequency (RF) isolation in multiple-input multiple-output (MIMO) antenna arrangement |
US10110308B2 (en) | 2014-12-18 | 2018-10-23 | Corning Optical Communications Wireless Ltd | Digital interface modules (DIMs) for flexibly distributing digital and/or analog communications signals in wide-area analog distributed antenna systems (DASs) |
US10128951B2 (en) | 2009-02-03 | 2018-11-13 | Corning Optical Communications LLC | Optical fiber-based distributed antenna systems, components, and related methods for monitoring and configuring thereof |
US10136200B2 (en) | 2012-04-25 | 2018-11-20 | Corning Optical Communications LLC | Distributed antenna system architectures |
US10135533B2 (en) | 2014-11-13 | 2018-11-20 | Corning Optical Communications Wireless Ltd | Analog distributed antenna systems (DASS) supporting distribution of digital communications signals interfaced from a digital signal source and analog radio frequency (RF) communications signals |
US10187151B2 (en) | 2014-12-18 | 2019-01-22 | Corning Optical Communications Wireless Ltd | Digital-analog interface modules (DAIMs) for flexibly distributing digital and/or analog communications signals in wide-area analog distributed antenna systems (DASs) |
US10236924B2 (en) | 2016-03-31 | 2019-03-19 | Corning Optical Communications Wireless Ltd | Reducing out-of-channel noise in a wireless distribution system (WDS) |
US10560214B2 (en) | 2015-09-28 | 2020-02-11 | Corning Optical Communications LLC | Downlink and uplink communication path switching in a time-division duplex (TDD) distributed antenna system (DAS) |
US10659163B2 (en) | 2014-09-25 | 2020-05-19 | Corning Optical Communications LLC | Supporting analog remote antenna units (RAUs) in digital distributed antenna systems (DASs) using analog RAU digital adaptors |
US11178609B2 (en) | 2010-10-13 | 2021-11-16 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
US11412395B2 (en) | 2011-09-16 | 2022-08-09 | Andrew Wireless Systems Gmbh | Integrated intermodulation detection sub-system for telecommunications systems |
Families Citing this family (93)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5627879A (en) * | 1992-09-17 | 1997-05-06 | Adc Telecommunications, Inc. | Cellular communications system with centralized base stations and distributed antenna units |
US6480510B1 (en) | 1998-07-28 | 2002-11-12 | Serconet Ltd. | Local area network of serial intelligent cells |
US6956826B1 (en) * | 1999-07-07 | 2005-10-18 | Serconet Ltd. | Local area network for distributing data communication, sensing and control signals |
US6549616B1 (en) | 2000-03-20 | 2003-04-15 | Serconet Ltd. | Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets |
US6704545B1 (en) | 2000-07-19 | 2004-03-09 | Adc Telecommunications, Inc. | Point-to-multipoint digital radio frequency transport |
US8265637B2 (en) * | 2000-08-02 | 2012-09-11 | Atc Technologies, Llc | Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference |
US8184603B2 (en) | 2002-01-31 | 2012-05-22 | Lgc Wireless, Llc | Communication system having a community wireless local area network for voice and high speed data communication |
US8380143B2 (en) | 2002-05-01 | 2013-02-19 | Dali Systems Co. Ltd | Power amplifier time-delay invariant predistortion methods and apparatus |
US8811917B2 (en) | 2002-05-01 | 2014-08-19 | Dali Systems Co. Ltd. | Digital hybrid mode power amplifier system |
US8958789B2 (en) | 2002-12-03 | 2015-02-17 | Adc Telecommunications, Inc. | Distributed digital antenna system |
IL159838A0 (en) | 2004-01-13 | 2004-06-20 | Yehuda Binder | Information device |
IL160417A (en) * | 2004-02-16 | 2011-04-28 | Mosaid Technologies Inc | Outlet add-on module |
US7489905B2 (en) * | 2006-03-01 | 2009-02-10 | Research In Motion Limited | System for determining RF path loss between an RF source and an RF receiver with hysteresis and related methods |
US20070248358A1 (en) * | 2006-04-19 | 2007-10-25 | Michael Sauer | Electrical-optical cable for wireless systems |
US7805073B2 (en) | 2006-04-28 | 2010-09-28 | Adc Telecommunications, Inc. | Systems and methods of optical path protection for distributed antenna systems |
US20070286599A1 (en) * | 2006-06-12 | 2007-12-13 | Michael Sauer | Centralized optical-fiber-based wireless picocellular systems and methods |
US20070292136A1 (en) * | 2006-06-16 | 2007-12-20 | Michael Sauer | Transponder for a radio-over-fiber optical fiber cable |
US7627250B2 (en) * | 2006-08-16 | 2009-12-01 | Corning Cable Systems Llc | Radio-over-fiber transponder with a dual-band patch antenna system |
WO2008078195A2 (en) | 2006-12-26 | 2008-07-03 | Dali Systems Co., Ltd. | Method and system for baseband predistortion linearization in multi-channel wideband communication systems |
US8737454B2 (en) | 2007-01-25 | 2014-05-27 | Adc Telecommunications, Inc. | Modular wireless communications platform |
US8583100B2 (en) | 2007-01-25 | 2013-11-12 | Adc Telecommunications, Inc. | Distributed remote base station system |
US8942646B2 (en) * | 2010-09-30 | 2015-01-27 | Broadcom Corporation | Method and system for a 60 GHz communication device comprising multi-location antennas for pseudo-beamforming |
US8942645B2 (en) * | 2010-09-30 | 2015-01-27 | Broadcom Corporation | Method and system for communication via subbands in a 60 GHZ distributed communication system |
US8942647B2 (en) * | 2010-09-30 | 2015-01-27 | Broadcom Corporation | Method and system for antenna switching for 60 GHz distributed communication |
US9002300B2 (en) * | 2010-09-30 | 2015-04-07 | Broadcom Corporation | Method and system for time division duplexing (TDD) in a 60 GHZ distributed communication system |
US8977219B2 (en) * | 2010-09-30 | 2015-03-10 | Broadcom Corporation | Method and system for mitigating leakage of a 60 GHz transmitted signal back into an RF input of a 60 GHz device |
US8594133B2 (en) | 2007-10-22 | 2013-11-26 | Corning Mobileaccess Ltd. | Communication system using low bandwidth wires |
US8792920B2 (en) * | 2007-11-15 | 2014-07-29 | Ubeeairwalk, Inc. | System, method, and computer-readable medium for short message service processing by a femtocell system |
CA2714564C (en) * | 2008-02-08 | 2014-10-28 | Adc Telecommunications, Inc. | An enterprise mobile network for providing cellular wireless service using licensed radio frequency spectrum and supporting multiple-device ring for incoming calls |
EP2245699B1 (en) | 2008-02-14 | 2017-11-15 | Zinwave Limited | Communication system |
US8213401B2 (en) * | 2009-01-13 | 2012-07-03 | Adc Telecommunications, Inc. | Systems and methods for IP communication over a distributed antenna system transport |
US8346278B2 (en) * | 2009-01-13 | 2013-01-01 | Adc Telecommunications, Inc. | Systems and methods for mobile phone location with digital distributed antenna systems |
USRE47466E1 (en) | 2009-01-13 | 2019-06-25 | Commscope Technologies Llc | Systems and methods for IP communication over a distributed antenna system transport |
CN101790232B (en) * | 2009-01-22 | 2016-03-30 | 中兴通讯股份有限公司 | Based on scan report sending method, the terminal of multicarrier system |
KR101536696B1 (en) * | 2009-02-02 | 2015-07-14 | 삼성전자주식회사 | RFID(Radio Frequency IDentification) Interrogator |
US7995487B2 (en) * | 2009-03-03 | 2011-08-09 | Robert Bosch Gmbh | Intelligent router for wireless sensor network |
US8346091B2 (en) | 2009-04-29 | 2013-01-01 | Andrew Llc | Distributed antenna system for wireless network systems |
US9590733B2 (en) | 2009-07-24 | 2017-03-07 | Corning Optical Communications LLC | Location tracking using fiber optic array cables and related systems and methods |
WO2011105939A1 (en) * | 2010-02-24 | 2011-09-01 | Telefonaktiebolaget L M Ericsson (Publ) | Discontinuous transmission scheme |
IT1398534B1 (en) | 2010-02-25 | 2013-03-01 | Wisytech S R L | EQUIPMENT FOR FEMTOCELLE TELECOMMUNICATION SYSTEM. |
WO2011123336A1 (en) | 2010-03-31 | 2011-10-06 | Corning Cable Systems Llc | Localization services in optical fiber-based distributed communications components and systems, and related methods |
DE102010018492B4 (en) | 2010-04-28 | 2011-12-08 | Andrew Wireless Systems Gmbh | Interface module for a unit of an antenna distribution system and antenna distribution system |
WO2011139942A1 (en) * | 2010-05-02 | 2011-11-10 | Corning Cable Systems Llc | Providing digital data services in optical fiber -based distributed radio frequency (rf) communications system |
US8509850B2 (en) | 2010-06-14 | 2013-08-13 | Adc Telecommunications, Inc. | Systems and methods for distributed antenna system reverse path summation using signal-to-noise ratio optimization |
US8570914B2 (en) | 2010-08-09 | 2013-10-29 | Corning Cable Systems Llc | Apparatuses, systems, and methods for determining location of a mobile device(s) in a distributed antenna system(s) |
CN103180844B (en) | 2010-08-17 | 2017-10-03 | 大力系统有限公司 | Neutral host architecture for distributing antenna system |
CN105141513B (en) | 2010-09-14 | 2018-12-14 | 大力系统有限公司 | The method for operating the method for distributing antenna system and being communicated within the system |
US9160449B2 (en) | 2010-10-13 | 2015-10-13 | Ccs Technology, Inc. | Local power management for remote antenna units in distributed antenna systems |
US11296504B2 (en) | 2010-11-24 | 2022-04-05 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for wireless communication systems, and related power units, components, and methods |
EP2643947B1 (en) | 2010-11-24 | 2018-09-19 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for distributed antenna systems, and related power units, components, and methods |
US8532566B2 (en) * | 2011-06-08 | 2013-09-10 | Andrew Llc | System and method for reducing desensitization of a base station transceiver for mobile wireless repeater systems |
EP2942902B1 (en) | 2011-06-09 | 2017-11-15 | CommScope Technologies LLC | Distributed antenna system using power-over-ethernet |
JP5357216B2 (en) * | 2011-06-30 | 2013-12-04 | 株式会社日立製作所 | Wireless communication system and method, base station apparatus, terminal apparatus |
US8787223B2 (en) | 2011-09-16 | 2014-07-22 | Rogers Communications Inc. | Coaxial cable distribution of CATV and wireless signals |
US8254848B1 (en) | 2011-12-09 | 2012-08-28 | At&T Intellectual Property I, Lp | Monitoring system for distributed antenna systems |
EP3422589A1 (en) * | 2012-02-02 | 2019-01-02 | CommScope Technologies LLC | Optimized telecommunications distribution system |
EP2829152A2 (en) | 2012-03-23 | 2015-01-28 | Corning Optical Communications Wireless Ltd. | Radio-frequency integrated circuit (rfic) chip(s) for providing distributed antenna system functionalities, and related components, systems, and methods |
US9781553B2 (en) | 2012-04-24 | 2017-10-03 | Corning Optical Communications LLC | Location based services in a distributed communication system, and related components and methods |
WO2013181247A1 (en) | 2012-05-29 | 2013-12-05 | Corning Cable Systems Llc | Ultrasound-based localization of client devices with inertial navigation supplement in distributed communication systems and related devices and methods |
WO2014005637A1 (en) * | 2012-07-05 | 2014-01-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and network nodes for communication between a first network node and a second network node over a twisted pair wire |
US9107086B2 (en) * | 2012-07-20 | 2015-08-11 | Adc Telecommunications, Inc. | Integration panel |
US9154222B2 (en) | 2012-07-31 | 2015-10-06 | Corning Optical Communications LLC | Cooling system control in distributed antenna systems |
DE202013012858U1 (en) * | 2012-08-09 | 2021-05-07 | Axel Wireless Ltd. | Capacity-centered digital distributed antenna system |
KR102031630B1 (en) | 2012-10-31 | 2019-10-14 | 콤스코프 테크놀로지스, 엘엘씨 | Digital baseband transport in telecommunications distribution systems |
US10257056B2 (en) | 2012-11-28 | 2019-04-09 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
US9158864B2 (en) | 2012-12-21 | 2015-10-13 | Corning Optical Communications Wireless Ltd | Systems, methods, and devices for documenting a location of installed equipment |
US9497706B2 (en) | 2013-02-20 | 2016-11-15 | Corning Optical Communications Wireless Ltd | Power management in distributed antenna systems (DASs), and related components, systems, and methods |
EP2965450A1 (en) | 2013-02-27 | 2016-01-13 | Corning Optical Communications Wireless Ltd | Providing simultaneous digital and analog services and optical fiber-based distributed antenna systems, and related components and methods |
CN105284060A (en) * | 2013-08-19 | 2016-01-27 | 上海贝尔股份有限公司 | Distributed antenna system, radio-frequency power control method and base station device |
EP3039814B1 (en) | 2013-08-28 | 2018-02-21 | Corning Optical Communications Wireless Ltd. | Power management for distributed communication systems, and related components, systems, and methods |
US9750082B2 (en) | 2013-10-07 | 2017-08-29 | Commscope Technologies Llc | Systems and methods for noise floor optimization in distributed antenna system with direct digital interface to base station |
WO2015079435A1 (en) | 2013-11-26 | 2015-06-04 | Corning Optical Communications Wireless Ltd. | Selective activation of communications services on power-up of a remote unit(s) in a distributed antenna system (das) based on power consumption |
WO2015151086A1 (en) | 2014-03-31 | 2015-10-08 | Corning Optical Communications Wireless Ltd. | Distributed antenna system continuity |
WO2015190967A1 (en) * | 2014-06-13 | 2015-12-17 | Telefonaktiebolaget L M Ericsson (Publ) | Methods of adapting measurement rate accounting for carrier frequency |
US9509133B2 (en) | 2014-06-27 | 2016-11-29 | Corning Optical Communications Wireless Ltd | Protection of distributed antenna systems |
US9653861B2 (en) | 2014-09-17 | 2017-05-16 | Corning Optical Communications Wireless Ltd | Interconnection of hardware components |
EP3198755B1 (en) | 2014-09-23 | 2020-12-23 | Axell Wireless Ltd. | Automatic mapping and handling pim and other uplink interferences in digital distributed antenna systems |
US9184960B1 (en) | 2014-09-25 | 2015-11-10 | Corning Optical Communications Wireless Ltd | Frequency shifting a communications signal(s) in a multi-frequency distributed antenna system (DAS) to avoid or reduce frequency interference |
EP3238352A4 (en) | 2014-12-23 | 2018-08-22 | Axell Wireless Ltd. | Harmonizing noise aggregation and noise management in distributed antenna system |
CN107211429B (en) | 2015-02-05 | 2021-05-28 | 康普技术有限责任公司 | System and method for emulating uplink diversity signals |
AU2016218390C1 (en) | 2015-02-11 | 2020-04-16 | Commscope Technologies Llc | Channel identification in a MIMO telecommunication system |
US9785175B2 (en) | 2015-03-27 | 2017-10-10 | Corning Optical Communications Wireless, Ltd. | Combining power from electrically isolated power paths for powering remote units in a distributed antenna system(s) (DASs) |
US9729358B2 (en) * | 2015-05-29 | 2017-08-08 | Corning Optical Communications Wireless Ltd | Tunable radio frequency (RF) equalizer |
US10499269B2 (en) | 2015-11-12 | 2019-12-03 | Commscope Technologies Llc | Systems and methods for assigning controlled nodes to channel interfaces of a controller |
KR101824012B1 (en) * | 2016-02-29 | 2018-02-01 | 케이엠더블유 유.에스.에이., 인크. | Tool for Configuration and Install of Distributed Antenna Systems and Install Guide |
US9648580B1 (en) | 2016-03-23 | 2017-05-09 | Corning Optical Communications Wireless Ltd | Identifying remote units in a wireless distribution system (WDS) based on assigned unique temporal delay patterns |
KR101806173B1 (en) * | 2016-04-29 | 2017-12-07 | 주식회사 케이엠더블유 | Distributed Antenna System supporting MIMO services |
US9794795B1 (en) | 2016-04-29 | 2017-10-17 | Corning Optical Communications Wireless Ltd | Implementing a live distributed antenna system (DAS) configuration from a virtual DAS design using an original equipment manufacturer (OEM) specific software system in a DAS |
US10560136B2 (en) | 2016-05-31 | 2020-02-11 | Corning Optical Communications LLC | Antenna continuity |
MX2018015356A (en) * | 2016-06-10 | 2019-09-23 | At & T Ip I Lp | Backhaul link with reference signal for distributed antenna system. |
WO2018187773A1 (en) * | 2017-04-06 | 2018-10-11 | Wilson Electronics, Llc | Techniques for configuring the power or gain of a repeater |
CN111740752B (en) * | 2019-03-25 | 2021-04-16 | 大唐移动通信设备有限公司 | Method and device for processing digital intermediate frequency signal |
WO2021101649A1 (en) | 2019-11-18 | 2021-05-27 | Commscope Technologies Llc | Systems and methods for a multiple-operator distributed antenna system |
Family Cites Families (209)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5412766B2 (en) * | 1971-11-24 | 1979-05-25 | ||
US4183054A (en) | 1977-09-30 | 1980-01-08 | Harris Corporation | Digital, frequency-translated, plural-channel, vestigial sideband television communication system |
US4451916A (en) * | 1980-05-12 | 1984-05-29 | Harris Corporation | Repeatered, multi-channel fiber optic communication network having fault isolation system |
NL8203600A (en) * | 1982-09-17 | 1984-04-16 | Philips Nv | MAIN END AND RECEIVER FOR A SIGNAL DISTRIBUTION SYSTEM. |
US4691292A (en) * | 1983-04-13 | 1987-09-01 | Rca Corporation | System for digital multiband filtering |
DE3318774A1 (en) * | 1983-05-24 | 1984-11-29 | ANT Nachrichtentechnik GmbH, 7150 Backnang | METHOD FOR TRANSMITTING DIGITALLY CODED ANALOG SIGNALS |
US4628501A (en) * | 1983-12-29 | 1986-12-09 | The United States Of America As Represented By The Secretary Of The Army | Optical communications systems |
US4667319A (en) * | 1985-07-29 | 1987-05-19 | Gte Sprint Communications Corporation | Digital repeater with 3-way branching of service channels |
DE3681388D1 (en) * | 1985-09-18 | 1991-10-17 | Nec Corp | RADIO RELAY WITH ONLY ONE FREQUENCY FOR A DIGITAL RADIO SYSTEM. |
DE3578240D1 (en) * | 1985-12-04 | 1990-07-19 | Ibm | MULTIPLEX INTERFACE FOR A TRANSMISSION CONTROL. |
GB2197531B (en) * | 1986-11-08 | 1991-02-06 | Stc Plc | Distributed feedback laser |
US4862514A (en) * | 1986-11-24 | 1989-08-29 | World Electronics, Inc. | Hybrid electronic radio repeater |
DE3707244A1 (en) | 1987-03-06 | 1988-09-15 | Siemens Ag | Method for digital transmission of radio signals |
GB8809602D0 (en) * | 1988-04-22 | 1988-05-25 | British Telecomm | Mobile radio systems |
US5682256A (en) * | 1988-11-11 | 1997-10-28 | British Telecommunications Public Limited Company | Communications system |
US5193109A (en) * | 1989-02-06 | 1993-03-09 | Pactel Corporation | Zoned microcell with sector scanning for cellular telephone system |
CA2008900C (en) | 1989-04-04 | 1998-01-20 | Ta-Shing Chu | Optical fiber microcellular mobile radio |
US4999831A (en) * | 1989-10-19 | 1991-03-12 | United Telecommunications, Inc. | Synchronous quantized subcarrier multiplexer for digital transport of video, voice and data |
CA2051496C (en) * | 1990-09-17 | 1996-05-07 | Katsumi Emura | Mobile communication system |
US5212831A (en) * | 1990-11-28 | 1993-05-18 | Bell Communications Research, Inc. | Method and apparatus for autonomous adaptive frequency assignment in TDMA portable radio systems |
IL100213A (en) * | 1990-12-07 | 1995-03-30 | Qualcomm Inc | CDMA microcellular telephone system and distributed antenna system therefor |
GB2253770B (en) | 1991-01-15 | 1996-01-10 | Rogers Communications Inc | Radiotelephony system |
US5809395A (en) * | 1991-01-15 | 1998-09-15 | Rogers Cable Systems Limited | Remote antenna driver for a radio telephony system |
US5802173A (en) * | 1991-01-15 | 1998-09-01 | Rogers Cable Systems Limited | Radiotelephony system |
US5390366A (en) * | 1991-03-12 | 1995-02-14 | Nec Corporation | Mobile communication system |
US5243598A (en) * | 1991-04-02 | 1993-09-07 | Pactel Corporation | Microcell system in digital cellular |
US5321849A (en) * | 1991-05-22 | 1994-06-14 | Southwestern Bell Technology Resources, Inc. | System for controlling signal level at both ends of a transmission link based on a detected valve |
CA2067637C (en) * | 1991-07-29 | 1997-11-18 | John Lappington | System for distributing radio telephone signals over a cable television network |
US5545397A (en) * | 1991-10-23 | 1996-08-13 | Boron Biologicals, Inc. | Contrast agents and compositions for radiological imaging, and radiological imaging method utilizing same |
US5461627A (en) * | 1991-12-24 | 1995-10-24 | Rypinski; Chandos A. | Access protocol for a common channel wireless network |
CA2058737C (en) * | 1992-01-03 | 1997-03-18 | Andrew S. Beasley | Rf repeater arrangement with improved frequency reuse for wireless telephones |
CA2125411E (en) * | 1992-01-03 | 1996-06-25 | Andrew S. Beasley | Distributed rf repeater arrangement and method for linking wireless handsets to basestations |
US5887261A (en) * | 1992-03-31 | 1999-03-23 | Motorola, Inc. | Method and apparatus for a radio remote repeater in a digital cellular radio communication system |
US5339184A (en) * | 1992-06-15 | 1994-08-16 | Gte Laboratories Incorporated | Fiber optic antenna remoting for multi-sector cell sites |
US5303287A (en) * | 1992-08-13 | 1994-04-12 | Hughes Aircraft Company | Integrated personal/cellular communications system architecture |
US5627879A (en) * | 1992-09-17 | 1997-05-06 | Adc Telecommunications, Inc. | Cellular communications system with centralized base stations and distributed antenna units |
US5488737A (en) * | 1992-11-17 | 1996-01-30 | Southwestern Bell Technology Resources, Inc. | Land-based wireless communications system having a scanned directional antenna |
US5404570A (en) * | 1992-11-23 | 1995-04-04 | Telefonaktiebolaget L M Ericsson | Radio coverage in closed environments |
US5351146A (en) * | 1993-03-01 | 1994-09-27 | At&T Bell Laboratories | All-optical network architecture |
AU7173694A (en) * | 1993-06-25 | 1995-01-17 | Omniplex, Inc. | Determination of location using time-synchronized cell site transmissions |
US5539730A (en) * | 1994-01-11 | 1996-07-23 | Ericsson Ge Mobile Communications Inc. | TDMA/FDMA/CDMA hybrid radio access methods |
US5457557A (en) | 1994-01-21 | 1995-10-10 | Ortel Corporation | Low cost optical fiber RF signal distribution system |
US5519691A (en) * | 1994-06-03 | 1996-05-21 | At&T Corp. | Arrangement for and method of providing radio frequency access to a switching system |
US5787344A (en) * | 1994-06-28 | 1998-07-28 | Scheinert; Stefan | Arrangements of base transceiver stations of an area-covering network |
US5987014A (en) | 1994-07-14 | 1999-11-16 | Stanford Telecommunications, Inc. | Multipath resistant, orthogonal code-division multiple access system |
US6334219B1 (en) | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
US5563606A (en) * | 1994-10-03 | 1996-10-08 | Motorola, Inc. | Dynamic mapping apparatus for mobile unit acquisition and method therefor |
US5809419A (en) * | 1994-12-14 | 1998-09-15 | Motorola, Inc. | Method for reducing channel scanning time |
US5822324A (en) * | 1995-03-16 | 1998-10-13 | Bell Atlantic Network Services, Inc. | Simulcasting digital video programs for broadcast and interactive services |
US5761619A (en) * | 1995-03-23 | 1998-06-02 | Telefoanktiebolaget Lm Ericsson | Distributed telecommunications system |
US5631916A (en) * | 1995-05-01 | 1997-05-20 | Georges; John B. | Apparatus and method for optically transmitting electrical signals in the 20-300 gigahertz frequency range |
US5708961A (en) * | 1995-05-01 | 1998-01-13 | Bell Atlantic Network Services, Inc. | Wireless on-premises video distribution using digital multiplexing |
US5781541A (en) * | 1995-05-03 | 1998-07-14 | Bell Atlantic Network Services, Inc. | CDMA system having time-distributed transmission paths for multipath reception |
US5697052A (en) * | 1995-07-05 | 1997-12-09 | Treatch; James E. | Cellular specialized mobile radio system |
US5903834A (en) * | 1995-10-06 | 1999-05-11 | Telefonaktiebolaget L/M Ericsson | Distributed indoor digital multiple-access cellular telephone system |
US5732076A (en) * | 1995-10-26 | 1998-03-24 | Omnipoint Corporation | Coexisting communication systems |
IT1281001B1 (en) | 1995-10-27 | 1998-02-11 | Cselt Centro Studi Lab Telecom | PROCEDURE AND EQUIPMENT FOR CODING, HANDLING AND DECODING AUDIO SIGNALS. |
US6005884A (en) * | 1995-11-06 | 1999-12-21 | Ems Technologies, Inc. | Distributed architecture for a wireless data communications system |
US5774789A (en) * | 1995-12-14 | 1998-06-30 | Allen Telecom Inc. | RF communication signal distribution system and method |
US6108113A (en) | 1995-12-29 | 2000-08-22 | Mci Communications Corporation | Method and system for transporting ancillary network data |
US6084889A (en) | 1996-02-14 | 2000-07-04 | Hitachi, Ltd. | ATM multiplexing apparatus, ATM demultiplexing apparatus, and communication network with the apparatus |
US5809422A (en) * | 1996-03-08 | 1998-09-15 | Watkins Johnson Company | Distributed microcellular communications system |
US6014546A (en) | 1996-04-19 | 2000-01-11 | Lgc Wireless, Inc. | Method and system providing RF distribution for fixed wireless local loop service |
US5930682A (en) * | 1996-04-19 | 1999-07-27 | Lgc Wireless, Inc. | Centralized channel selection in a distributed RF antenna system |
CA2251959C (en) * | 1996-04-19 | 2001-12-25 | Lgc Wireless, Inc. | Distribution of radio-frequency signals through low bandwidth infrastructures |
US5983070A (en) * | 1996-04-19 | 1999-11-09 | Lgc Wireless, Inc. | Method and system providing increased antenna functionality in a RF distribution system |
US5668562A (en) * | 1996-04-19 | 1997-09-16 | Lgc Wireless, Inc. | Measurement-based method of optimizing the placement of antennas in a RF distribution system |
US6157810A (en) * | 1996-04-19 | 2000-12-05 | Lgc Wireless, Inc | Distribution of radio-frequency signals through low bandwidth infrastructures |
US5907544A (en) * | 1996-05-10 | 1999-05-25 | Rypinski; Chandos A. | Hub controller architecture and function for a multiple access-point wireless communication network |
US5765097A (en) * | 1996-05-20 | 1998-06-09 | At & T Corp | Shared hybrid fiber-coax network having reduced ingress noise in the upstream channel transmitted via a repeater |
US6285881B1 (en) * | 1996-05-31 | 2001-09-04 | Northern Telecom Ltd. | Method and system for quickly finding a control channel in a private cellular system |
US5878325A (en) * | 1996-07-12 | 1999-03-02 | At&T Corp | Hybrid fiber-coax system having at least one digital fiber node |
US5805983A (en) * | 1996-07-18 | 1998-09-08 | Ericsson Inc. | System and method for equalizing the delay time for transmission paths in a distributed antenna network |
US5790529A (en) | 1996-08-01 | 1998-08-04 | Motorola, Inc. | Communications network node with switched channelizer architecture |
US6249252B1 (en) | 1996-09-09 | 2001-06-19 | Tracbeam Llc | Wireless location using multiple location estimators |
US6236365B1 (en) * | 1996-09-09 | 2001-05-22 | Tracbeam, Llc | Location of a mobile station using a plurality of commercial wireless infrastructures |
US5875179A (en) * | 1996-10-29 | 1999-02-23 | Proxim, Inc. | Method and apparatus for synchronized communication over wireless backbone architecture |
US5946622A (en) | 1996-11-19 | 1999-08-31 | Ericsson Inc. | Method and apparatus for providing cellular telephone service to a macro-cell and pico-cell within a building using shared equipment |
IL119832A (en) | 1996-12-15 | 2001-01-11 | Foxcom Wireless Ltd | Wireless communications systems employing optical fibers |
GB2320653A (en) | 1996-12-23 | 1998-06-24 | Northern Telecom Ltd | Mobile Communications Network Using Alternative Protocols |
US6034950A (en) | 1996-12-27 | 2000-03-07 | Motorola Inc. | System packet-based centralized base station controller |
IL119972A (en) | 1997-01-07 | 2001-01-28 | Foxcom Ltd | Satellite distributed television |
US5912641A (en) | 1997-01-21 | 1999-06-15 | Globalstar L.P. | Indoor satellite cellular repeater system |
US5883882A (en) * | 1997-01-30 | 1999-03-16 | Lgc Wireless | Fault detection in a frequency duplexed system |
CA2279343C (en) | 1997-02-03 | 2003-10-07 | Barry J. Ethridge | Distributed ethernet hub |
BR9807698A (en) | 1997-02-19 | 2000-05-02 | Next Level Communications L P | Process of distributing video signals from a residential gate in a residential setting having at least two televisions in separate rooms and a residential gate to distribute video signals to multiple rooms in a residential setting. |
US6112086A (en) | 1997-02-25 | 2000-08-29 | Adc Telecommunications, Inc. | Scanning RSSI receiver system using inverse fast fourier transforms for a cellular communications system with centralized base stations and distributed antenna units |
US5905943A (en) | 1997-04-29 | 1999-05-18 | Globalstar L.P. | System for generating and using global radio frequency maps |
EP0876073A3 (en) | 1997-05-01 | 2000-03-01 | AT&T Corp. | Dual-mode telephone for cordless and cellular networks |
US5833493A (en) | 1997-06-05 | 1998-11-10 | Hung; Kuang Fu | DC power connecting cable with errorproof indication |
SE9702271D0 (en) * | 1997-06-13 | 1997-06-13 | Ericsson Telefon Ab L M | Reuse of physical control channel in a distributed cellular radio communication system |
DE19726940C2 (en) * | 1997-06-25 | 2002-07-18 | Littlefeet Inc | Transmitting and receiving device for amplifying the transmission signals between a fixed and a mobile transmitting station and method for operating the channel detection device of a transmitting and receiving device |
AU8684098A (en) | 1997-07-31 | 1999-02-22 | Sapphire Communications, Inc. | Means and method for a synchronous network communications system |
US6484012B1 (en) | 1997-08-04 | 2002-11-19 | Wireless Facilities, Inc. | Inter-band communication repeater system |
US6512754B2 (en) | 1997-10-14 | 2003-01-28 | Lucent Technologies Inc. | Point-to-point protocol encapsulation in ethernet frame |
US6907048B1 (en) | 1997-10-14 | 2005-06-14 | Alvarion Israel (2003) Ltd. | Method and apparatus for transporting ethernet data packets via radio frames in a wireless metropolitan area network |
US6141533A (en) * | 1997-11-13 | 2000-10-31 | Motorola, Inc. | Method and apparatus for a mobile repeater |
EP2018067A3 (en) | 1997-11-18 | 2009-08-12 | Sony Corporation | Signal processing device and method for switching signal processors thereof |
JP3812787B2 (en) | 1997-11-20 | 2006-08-23 | 株式会社日立国際電気 | Optical conversion repeater amplification system |
US6195342B1 (en) | 1997-11-25 | 2001-02-27 | Motorola, Inc. | Method for determining hand-off candidates in a neighbor set in a CDMA communication system |
US6078812A (en) * | 1997-12-15 | 2000-06-20 | Ericsson Inc. | System and method for adaptive channel allocation |
US6157659A (en) | 1997-12-19 | 2000-12-05 | Nortel Networks Corporation | Method of and apparatus for multiplexing and demultiplexing digital signal streams |
US6192216B1 (en) | 1997-12-24 | 2001-02-20 | Transcept, Inc. | Remotely controlled gain control of transceiver used to inter-connect wireless telephones to a broadband network |
US6374124B1 (en) | 1997-12-24 | 2002-04-16 | Transcept, Inc. | Dynamic reallocation of transceivers used to interconnect wireless telephones to a broadband network |
US6147786A (en) | 1998-02-20 | 2000-11-14 | Nokia Telecommunications, Oy | Hybrid analog/digital WDM access network with mini-digital optical node |
US6125109A (en) * | 1998-02-24 | 2000-09-26 | Repeater Technologies | Delay combiner system for CDMA repeaters and low noise amplifiers |
US6198558B1 (en) | 1998-04-07 | 2001-03-06 | Nortel Networks Limited | Architecture repartitioning to simplify outside-plant component of fiber-based access system |
US6768745B1 (en) | 1998-04-29 | 2004-07-27 | Zhone Technologies, Inc. | Flexible SONET access and transmission system |
US6667973B1 (en) | 1998-04-29 | 2003-12-23 | Zhone Technologies, Inc. | Flexible SONET access and transmission systems |
US6421009B2 (en) | 1998-05-08 | 2002-07-16 | Peter Suprunov | Mobile station position tracking system for public safety |
US6222660B1 (en) | 1998-06-09 | 2001-04-24 | Tektronix, Inc. | Adaptive power supply for avalanche photodiode |
DE69935512T2 (en) * | 1998-06-24 | 2008-01-10 | Sk Telecom Co., Ltd. | REPEATER WITH TELEPHONE CONNECTION AND CONNECTED CABLE |
US6195385B1 (en) | 1998-06-30 | 2001-02-27 | Cisco Systems, Inc. | HTU-C clocking from a single source |
JP2000068958A (en) * | 1998-08-26 | 2000-03-03 | Toshiba Corp | Radio transmitter |
US6226274B1 (en) | 1998-09-24 | 2001-05-01 | Omnipoint Corporation | Method and apparatus for multiple access communication |
EP0994582B1 (en) | 1998-10-15 | 2005-08-17 | Lucent Technologies Inc. | Reconfigurable fiber network for wireless communication |
US6181687B1 (en) | 1998-10-22 | 2001-01-30 | International Business Machines Corporation | System and a method for continuously adjustable, splitting group, multi-contention resolution in multi-access computer communication systems |
US6614781B1 (en) * | 1998-11-20 | 2003-09-02 | Level 3 Communications, Inc. | Voice over data telecommunications network architecture |
US6362908B1 (en) | 1998-12-02 | 2002-03-26 | Marconi Communications, Inc. | Multi-service adaptable optical network unit |
US6850733B2 (en) | 1998-12-11 | 2005-02-01 | Freescale Semiconductor, Inc. | Method for conveying application data with carrierless ultra wideband wireless signals |
US6498936B1 (en) | 1999-01-22 | 2002-12-24 | Ericsson Inc. | Methods and systems for coding of broadcast messages |
US6584084B1 (en) * | 1999-03-01 | 2003-06-24 | Nortel Networks Ltd. | Expanded carrier capacity in a mobile communications system |
EP1694020B1 (en) | 1999-03-12 | 2008-05-28 | Aware, Inc. | Multicarrier modulation system and method |
US6729929B1 (en) | 1999-03-17 | 2004-05-04 | Cisco Systems, Inc. | Method and apparatus for controlling wireless networks |
US7016308B1 (en) | 1999-03-19 | 2006-03-21 | Broadband Royalty Corporation | Digital return path for hybrid fiber/coax network |
US6262981B1 (en) | 1999-04-14 | 2001-07-17 | Airnet Communications Corporation | Dynamic overflow protection for finite digital word-length multi-carrier transmitter communications equipment |
US6542754B1 (en) * | 1999-05-12 | 2003-04-01 | Cisco Systems, Inc. | Synchronizing clock signals in wireless networks |
US6556551B1 (en) | 1999-05-27 | 2003-04-29 | Lgc Wireless, Inc. | Multi-frequency pilot beacon for CDMA systems |
FI991284A (en) | 1999-06-04 | 2000-12-05 | Nokia Networks Oy | Dynamic execution of channel configuration of a cellular radio network base station |
FI108984B (en) | 1999-06-04 | 2002-04-30 | Nokia Corp | Measurement procedure for the function of cellular radio systems and cellular radio systems |
US6917614B1 (en) | 1999-09-17 | 2005-07-12 | Arris International, Inc. | Multi-channel support for virtual private networks in a packet to ATM cell cable system |
US6967966B1 (en) | 1999-11-03 | 2005-11-22 | Adc Telecommunications, Inc. | Digital return path for hybrid fiber/coax network |
JP4276399B2 (en) * | 1999-11-24 | 2009-06-10 | 富士通株式会社 | Base station control station apparatus, radio terminal apparatus, and radio communication system |
US6697603B1 (en) | 1999-12-13 | 2004-02-24 | Andrew Corporation | Digital repeater |
US7072407B2 (en) * | 2000-01-31 | 2006-07-04 | Brookline Flolmstead Llc | Combination power and full duplex data cable |
US7302497B2 (en) | 2000-02-08 | 2007-11-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Using internet protocol (IP) in radio access network |
US6778835B2 (en) * | 2000-03-18 | 2004-08-17 | Lg Electronics Inc. | Method for allocating physical channel of mobile communication system and communication method using the same |
EP1269776B1 (en) | 2000-03-27 | 2009-07-01 | OpenCell Corp. | System for distributing multi-protocol radio frequency signals |
AU2001239934A1 (en) | 2000-04-27 | 2001-11-12 | Lgc Wireless, Inc. | Adaptive capacity management in a centralized basestation architecture |
US6353600B1 (en) * | 2000-04-29 | 2002-03-05 | Lgc Wireless, Inc. | Dynamic sectorization in a CDMA cellular system employing centralized base-station architecture |
WO2004034508A2 (en) | 2000-06-08 | 2004-04-22 | Pointred Technologies, Inc. | Multibeam antenna for a wireless network |
US6704545B1 (en) | 2000-07-19 | 2004-03-09 | Adc Telecommunications, Inc. | Point-to-multipoint digital radio frequency transport |
GB0021544D0 (en) | 2000-09-01 | 2000-10-18 | Nokia Networks Oy | Broadcasting in a communication system |
US6728514B2 (en) | 2000-09-08 | 2004-04-27 | Wi-Lan Inc. | Scalable wireless network topology systems and methods |
US6665495B1 (en) * | 2000-10-27 | 2003-12-16 | Yotta Networks, Inc. | Non-blocking, scalable optical router architecture and method for routing optical traffic |
KR100459412B1 (en) | 2000-12-28 | 2004-12-03 | 엘지전자 주식회사 | Received apparatus for code division multiple access optic repeater using transmisson apparatus of digital signal |
US6801767B1 (en) * | 2001-01-26 | 2004-10-05 | Lgc Wireless, Inc. | Method and system for distributing multiband wireless communications signals |
KR20020063644A (en) * | 2001-01-30 | 2002-08-05 | 전자부품연구원 | Intermediate-frequency Distributed Antenna System |
US6961388B2 (en) | 2001-02-01 | 2005-11-01 | Qualcomm, Incorporated | Coding scheme for a wireless communication system |
US20020128009A1 (en) | 2001-02-20 | 2002-09-12 | Erik Boch | Transceiver for fixed wireless access network applications |
US6771933B1 (en) | 2001-03-26 | 2004-08-03 | Lgc Wireless, Inc. | Wireless deployment of bluetooth access points using a distributed antenna architecture |
CN1159935C (en) | 2001-03-30 | 2004-07-28 | 华为技术有限公司 | Method and device for raising cellular mobile station positioning accuracy in urban environment |
MXPA03009756A (en) | 2001-04-24 | 2004-06-30 | Qualcomm Inc | Method and apparatus for estimating the position of a terminal based on identification codes for transmission sources. |
US20020167954A1 (en) | 2001-05-11 | 2002-11-14 | P-Com, Inc. | Point-to-multipoint access network integrated with a backbone network |
US20020191565A1 (en) | 2001-06-08 | 2002-12-19 | Sanjay Mani | Methods and systems employing receive diversity in distributed cellular antenna applications |
US7127175B2 (en) | 2001-06-08 | 2006-10-24 | Nextg Networks | Method and apparatus for multiplexing in a wireless communication infrastructure |
US6826164B2 (en) | 2001-06-08 | 2004-11-30 | Nextg Networks | Method and apparatus for multiplexing in a wireless communication infrastructure |
US6826163B2 (en) | 2001-06-08 | 2004-11-30 | Nextg Networks | Method and apparatus for multiplexing in a wireless communication infrastructure |
US6865390B2 (en) | 2001-06-25 | 2005-03-08 | Lucent Technologies Inc. | Cellular communications system featuring a central radio pool/traffic router |
EP1271825A1 (en) * | 2001-06-25 | 2003-01-02 | Lucent Technologies Inc. | Method and system for multiplexed optical information transport |
US6586863B2 (en) | 2001-06-28 | 2003-07-01 | Samsung Electro-Mechanics Co., Ltd. | Rosen type piezoelectric transformer with multiple output electrodes |
US20030040335A1 (en) | 2001-08-27 | 2003-02-27 | Mcintosh Chris P. | Tower top cellular communication devices and method for operating the same |
US7117015B2 (en) | 2002-10-25 | 2006-10-03 | Intel Corporation, Inc | Internet base station |
US7496295B2 (en) * | 2001-10-10 | 2009-02-24 | Research Triangle Institute | Optical-inclusive dWDM local area network |
US6895218B2 (en) | 2001-10-11 | 2005-05-17 | Sprint Spectrum L.P. | Method for in-building distribution using wireless access technology |
US7014500B2 (en) * | 2001-10-16 | 2006-03-21 | Adam Belesimo | Testing assembly and method for identifying network circuits |
US8045935B2 (en) | 2001-12-06 | 2011-10-25 | Pulse-Link, Inc. | High data rate transmitter and receiver |
US6788658B1 (en) * | 2002-01-11 | 2004-09-07 | Airflow Networks | Wireless communication system architecture having split MAC layer |
JP2003235072A (en) | 2002-02-06 | 2003-08-22 | Ntt Docomo Inc | Wireless resource assignment method, wireless resource assignment apparatus, and mobile communication system |
US7035671B2 (en) | 2002-04-08 | 2006-04-25 | Adc Telecommunications, Inc. | Method and apparatus for intelligent noise reduction in a distributed communication system |
WO2003086005A1 (en) | 2002-04-09 | 2003-10-16 | Siemens Aktiengesellschaft | Methods, configuration and computer program having program code means and computer program product for determining a position of a mobile communications device within a communications network |
US6831901B2 (en) | 2002-05-31 | 2004-12-14 | Opencell Corporation | System and method for retransmission of data |
US6999447B2 (en) | 2002-06-26 | 2006-02-14 | Motorola, Inc. | VOIP transmitter and receiver devices and methods therefor |
WO2004004399A1 (en) | 2002-06-28 | 2004-01-08 | Nokia Corporation | Location sevice support for distributed bts architecture |
JP3980424B2 (en) | 2002-07-03 | 2007-09-26 | 本田技研工業株式会社 | Air-fuel ratio control device for internal combustion engine |
US7103279B1 (en) | 2002-07-15 | 2006-09-05 | Ydi Wireless, Inc. | Architecture for wireless transmission of high rate optical signals |
KR100702746B1 (en) * | 2002-08-20 | 2007-04-03 | 엘지전자 주식회사 | Method and apparatus for managing power of wireless local area network module in computer system |
US20040037565A1 (en) | 2002-08-22 | 2004-02-26 | Robin Young | Transport of signals over an optical fiber using analog RF multiplexing |
US20040198453A1 (en) | 2002-09-20 | 2004-10-07 | David Cutrer | Distributed wireless network employing utility poles and optical signal distribution |
US6963305B2 (en) * | 2002-10-02 | 2005-11-08 | Guenther Knapp | Electromagnetic coupler system |
CN100574119C (en) * | 2002-10-11 | 2009-12-23 | 高通股份有限公司 | The method of transponder in the operate wireless local area network (LAN) |
US7477920B2 (en) | 2002-10-25 | 2009-01-13 | Intel Corporation | System and method for automatically configuring and integrating a radio base station into an existing wireless cellular communication network with full bi-directional roaming and handover capability |
US7050786B2 (en) | 2002-10-30 | 2006-05-23 | Lockheed Martin Corporation | Method and apparatus for locating a wireless device |
US6785558B1 (en) | 2002-12-06 | 2004-08-31 | Lgc Wireless, Inc. | System and method for distributing wireless communication signals over metropolitan telecommunication networks |
US7565170B2 (en) | 2002-12-24 | 2009-07-21 | Telecom Italia S.P.A. | Radio base station receiver having digital filtering and reduced sampling frequency |
US7573862B2 (en) | 2003-02-06 | 2009-08-11 | Mahdi Chambers | System and method for optimizing network capacity in a cellular wireless network |
CA2516711A1 (en) | 2003-02-24 | 2004-09-10 | Autocell Laboratories, Inc. | System, method and apparatus for ascertaining a dynamic attribute of a system |
US20050176368A1 (en) * | 2003-03-07 | 2005-08-11 | Spotwave Wireless Inc. | Distributed adaptive repeater system |
US7203490B2 (en) | 2003-03-24 | 2007-04-10 | Atc Technologies, Llc | Satellite assisted push-to-send radioterminal systems and methods |
US20060172710A1 (en) | 2003-03-26 | 2006-08-03 | Celletra Ltd. | Phase sweeping methods for transmit diversity and diversity combining in bts sector extension and in wireless repeaters |
FI20030663A0 (en) | 2003-05-02 | 2003-05-02 | Nokia Corp | Antenna arrangement and base station |
KR100547880B1 (en) | 2003-05-20 | 2006-01-31 | 삼성전자주식회사 | Indoor Short-range Communication Network System Using Ultra-Wideband Communication System |
US7860392B2 (en) * | 2003-06-06 | 2010-12-28 | Dynamic Method Enterprises Limited | Optical network topology databases based on a set of connectivity constraints |
US20050143091A1 (en) * | 2003-09-02 | 2005-06-30 | Yair Shapira | Indoor location identification system |
US20050153712A1 (en) | 2004-01-08 | 2005-07-14 | Ken Osaka | Method and system for determining mobile unit location by aggregation of tagged signals from a distributed antenna system |
US20050157675A1 (en) * | 2004-01-16 | 2005-07-21 | Feder Peretz M. | Method and apparatus for cellular communication over data networks |
US10417298B2 (en) | 2004-12-02 | 2019-09-17 | Insignio Technologies, Inc. | Personalized content processing and delivery system and media |
WO2005109920A2 (en) | 2004-05-05 | 2005-11-17 | Nextg Networks | Wireless networks frequency reuse distance reduction |
US7289972B2 (en) | 2004-06-25 | 2007-10-30 | Virginia Tech Intellectual Properties, Inc. | Cognitive radio engine based on genetic algorithms in a network |
US7406300B2 (en) | 2004-07-29 | 2008-07-29 | Lucent Technologies Inc. | Extending wireless communication RF coverage inside building |
US7596352B2 (en) | 2004-08-23 | 2009-09-29 | Samsung Electronics Co., Ltd. | Apparatus and method for channel estimation and echo cancellation in a wireless repeater |
US20060072602A1 (en) | 2004-10-05 | 2006-04-06 | Cisco Technology, Inc. | Method and apparatus for least congested channel scan for wireless access points |
US7313415B2 (en) * | 2004-11-01 | 2007-12-25 | Nextg Networks, Inc. | Communications system and method |
US7205864B2 (en) | 2004-11-02 | 2007-04-17 | Nextg Networks, Inc. | Distributed matrix switch |
WO2006055784A2 (en) | 2004-11-19 | 2006-05-26 | The Trustees Of The Stevens Institute Of Technology | Multi-access terminal wiht capability for simultaneous connectivity to multiple communication channels |
US7474627B2 (en) | 2004-12-17 | 2009-01-06 | Nortel Networks Limited | Voice over internet protocol (VoIP) call admission and call regulation in a wireless network |
CN1917388B (en) * | 2005-08-16 | 2011-04-20 | 东南大学 | Distribution type antenna system, and communication method |
US20070167159A1 (en) * | 2006-01-17 | 2007-07-19 | Rajaram Ramesh | Broadcast-centric cellular communication system, method, and mobile station |
US7844273B2 (en) | 2006-07-14 | 2010-11-30 | Lgc Wireless, Inc. | System for and method of for providing dedicated capacity in a cellular network |
-
2006
- 2006-08-29 US US11/511,646 patent/US7848770B2/en active Active
-
2007
- 2007-08-17 EP EP07811395.8A patent/EP2067269B1/en active Active
- 2007-08-17 CA CA2662840A patent/CA2662840C/en not_active Expired - Fee Related
- 2007-08-17 ES ES07811395.8T patent/ES2556990T3/en active Active
- 2007-08-17 CN CN200780039284.3A patent/CN101542928B/en active Active
- 2007-08-17 WO PCT/US2007/018249 patent/WO2008027213A2/en active Search and Examination
- 2007-08-17 JP JP2009526619A patent/JP5055369B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of EP2067269A4 * |
Cited By (120)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7787823B2 (en) | 2006-09-15 | 2010-08-31 | Corning Cable Systems Llc | Radio-over-fiber (RoF) optical fiber cable system with transponder diversity and RoF wireless picocellular system using same |
US7848654B2 (en) | 2006-09-28 | 2010-12-07 | Corning Cable Systems Llc | Radio-over-fiber (RoF) wireless picocellular system with combined picocells |
US9130613B2 (en) | 2006-12-19 | 2015-09-08 | Corning Optical Communications Wireless Ltd | Distributed antenna system for MIMO technologies |
US8873585B2 (en) | 2006-12-19 | 2014-10-28 | Corning Optical Communications Wireless Ltd | Distributed antenna system for MIMO technologies |
US8111998B2 (en) | 2007-02-06 | 2012-02-07 | Corning Cable Systems Llc | Transponder systems and methods for radio-over-fiber (RoF) wireless picocellular systems |
US8867919B2 (en) | 2007-07-24 | 2014-10-21 | Corning Cable Systems Llc | Multi-port accumulator for radio-over-fiber (RoF) wireless picocellular systems |
US8175459B2 (en) | 2007-10-12 | 2012-05-08 | Corning Cable Systems Llc | Hybrid wireless/wired RoF transponder and hybrid RoF communication system using same |
US8718478B2 (en) | 2007-10-12 | 2014-05-06 | Corning Cable Systems Llc | Hybrid wireless/wired RoF transponder and hybrid RoF communication system using same |
US8644844B2 (en) | 2007-12-20 | 2014-02-04 | Corning Mobileaccess Ltd. | Extending outdoor location based services and applications into enclosed areas |
JP2011525344A (en) * | 2008-06-20 | 2011-09-15 | モバイルアクセス ネットワークス リミテッド | Method and system for real-time control of an active antenna via a distributed antenna system |
US9112611B2 (en) | 2009-02-03 | 2015-08-18 | Corning Optical Communications LLC | Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof |
US9900097B2 (en) | 2009-02-03 | 2018-02-20 | Corning Optical Communications LLC | Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof |
US10153841B2 (en) | 2009-02-03 | 2018-12-11 | Corning Optical Communications LLC | Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof |
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US9673904B2 (en) | 2009-02-03 | 2017-06-06 | Corning Optical Communications LLC | Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof |
US8548330B2 (en) | 2009-07-31 | 2013-10-01 | Corning Cable Systems Llc | Sectorization in distributed antenna systems, and related components and methods |
US9219879B2 (en) | 2009-11-13 | 2015-12-22 | Corning Optical Communications LLC | Radio-over-fiber (ROF) system for protocol-independent wired and/or wireless communication |
US9729238B2 (en) | 2009-11-13 | 2017-08-08 | Corning Optical Communications LLC | Radio-over-fiber (ROF) system for protocol-independent wired and/or wireless communication |
US9485022B2 (en) | 2009-11-13 | 2016-11-01 | Corning Optical Communications LLC | Radio-over-fiber (ROF) system for protocol-independent wired and/or wireless communication |
US8831428B2 (en) | 2010-02-15 | 2014-09-09 | Corning Optical Communications LLC | Dynamic cell bonding (DCB) for radio-over-fiber (RoF)-based networks and communication systems and related methods |
US8275265B2 (en) | 2010-02-15 | 2012-09-25 | Corning Cable Systems Llc | Dynamic cell bonding (DCB) for radio-over-fiber (RoF)-based networks and communication systems and related methods |
US9319138B2 (en) | 2010-02-15 | 2016-04-19 | Corning Optical Communications LLC | Dynamic cell bonding (DCB) for radio-over-fiber (RoF)-based networks and communication systems and related methods |
US9042732B2 (en) | 2010-05-02 | 2015-05-26 | Corning Optical Communications LLC | Providing digital data services in optical fiber-based distributed radio frequency (RF) communication systems, and related components and methods |
US9270374B2 (en) | 2010-05-02 | 2016-02-23 | Corning Optical Communications LLC | Providing digital data services in optical fiber-based distributed radio frequency (RF) communications systems, and related components and methods |
US9525488B2 (en) | 2010-05-02 | 2016-12-20 | Corning Optical Communications LLC | Digital data services and/or power distribution in optical fiber-based distributed communications systems providing digital data and radio frequency (RF) communications services, and related components and methods |
US9853732B2 (en) | 2010-05-02 | 2017-12-26 | Corning Optical Communications LLC | Digital data services and/or power distribution in optical fiber-based distributed communications systems providing digital data and radio frequency (RF) communications services, and related components and methods |
US9037143B2 (en) | 2010-08-16 | 2015-05-19 | Corning Optical Communications LLC | Remote antenna clusters and related systems, components, and methods supporting digital data signal propagation between remote antenna units |
US10014944B2 (en) | 2010-08-16 | 2018-07-03 | Corning Optical Communications LLC | Remote antenna clusters and related systems, components, and methods supporting digital data signal propagation between remote antenna units |
KR101316800B1 (en) * | 2010-09-30 | 2013-10-11 | 브로드콤 코포레이션 | METHOD AND SYSTEM FOR 60 GHz DISTRIBUTED COMMUNICATION |
US9008593B2 (en) | 2010-09-30 | 2015-04-14 | Broadcom Corporation | Method and system for 60 GHz distributed communication |
US9608674B2 (en) | 2010-09-30 | 2017-03-28 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Method and system for 60 GHz distributed communication |
EP2437571A1 (en) * | 2010-09-30 | 2012-04-04 | Broadcom Corporation | Method and system for 60 GHz distributed communication |
US11671914B2 (en) | 2010-10-13 | 2023-06-06 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
US11224014B2 (en) | 2010-10-13 | 2022-01-11 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
US11178609B2 (en) | 2010-10-13 | 2021-11-16 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
US11212745B2 (en) | 2010-10-13 | 2021-12-28 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
US8913892B2 (en) | 2010-10-28 | 2014-12-16 | Coring Optical Communications LLC | Sectorization in distributed antenna systems, and related components and methods |
EP2544378A3 (en) * | 2010-12-08 | 2014-05-28 | Broadcom Corporation | Method and system for 60 GHz chipset RF control interface (RF module control interface) |
US9325429B2 (en) | 2011-02-21 | 2016-04-26 | Corning Optical Communications LLC | Providing digital data services as electrical signals and radio-frequency (RF) communications over optical fiber in distributed communications systems, and related components and methods |
US10205538B2 (en) | 2011-02-21 | 2019-02-12 | Corning Optical Communications LLC | Providing digital data services as electrical signals and radio-frequency (RF) communications over optical fiber in distributed communications systems, and related components and methods |
US9813164B2 (en) | 2011-02-21 | 2017-11-07 | Corning Optical Communications LLC | Providing digital data services as electrical signals and radio-frequency (RF) communications over optical fiber in distributed communications systems, and related components and methods |
US9807722B2 (en) | 2011-04-29 | 2017-10-31 | Corning Optical Communications LLC | Determining propagation delay of communications in distributed antenna systems, and related components, systems, and methods |
US9240835B2 (en) | 2011-04-29 | 2016-01-19 | Corning Optical Communications LLC | Systems, methods, and devices for increasing radio frequency (RF) power in distributed antenna systems |
US9184843B2 (en) | 2011-04-29 | 2015-11-10 | Corning Optical Communications LLC | Determining propagation delay of communications in distributed antenna systems, and related components, systems, and methods |
US9369222B2 (en) | 2011-04-29 | 2016-06-14 | Corning Optical Communications LLC | Determining propagation delay of communications in distributed antenna systems, and related components, systems, and methods |
US10148347B2 (en) | 2011-04-29 | 2018-12-04 | Corning Optical Communications LLC | Systems, methods, and devices for increasing radio frequency (RF) power in distributed antenna systems |
US9806797B2 (en) | 2011-04-29 | 2017-10-31 | Corning Optical Communications LLC | Systems, methods, and devices for increasing radio frequency (RF) power in distributed antenna systems |
US10938450B2 (en) | 2011-07-11 | 2021-03-02 | Commscope Technologies Llc | Base station router for distributed antenna systems |
US10063287B2 (en) | 2011-07-11 | 2018-08-28 | Commscope Technologies Llc | Base station router for distributed antenna systems |
WO2013009835A1 (en) * | 2011-07-11 | 2013-01-17 | Andrew Llc | Method and apparatuses for managing a distributed antenna system |
US9735843B2 (en) | 2011-07-11 | 2017-08-15 | Commscope Technologies Llc | Base station router for distributed antenna systems |
US9398464B2 (en) | 2011-07-11 | 2016-07-19 | Commscope Technologies Llc | Base station router for distributed antenna systems |
US9565596B2 (en) | 2011-08-29 | 2017-02-07 | Commscope Technologies Llc | Configuring a distributed antenna system |
US10840976B2 (en) | 2011-08-29 | 2020-11-17 | Commscope Technologies Llc | Configuring a distributed antenna system |
US8831593B2 (en) | 2011-09-15 | 2014-09-09 | Andrew Wireless Systems Gmbh | Configuration sub-system for telecommunication systems |
US20140342674A1 (en) | 2011-09-15 | 2014-11-20 | Andrew Wireless Systems Gmbh | Configuration sub-system for telecommunication systems |
US10313030B2 (en) | 2011-09-15 | 2019-06-04 | Andrew Wireless Systems Gmbh | Configuration sub-system for telecommunication systems |
US10419134B2 (en) | 2011-09-15 | 2019-09-17 | Andrew Wireless Systems Gmbh | Configuration sub-system for telecommunication systems |
US10833780B2 (en) | 2011-09-15 | 2020-11-10 | Andrew Wireless Systems Gmbh | Configuration sub-system for telecommunication systems |
US11412395B2 (en) | 2011-09-16 | 2022-08-09 | Andrew Wireless Systems Gmbh | Integrated intermodulation detection sub-system for telecommunications systems |
US9258052B2 (en) | 2012-03-30 | 2016-02-09 | Corning Optical Communications LLC | Reducing location-dependent interference in distributed antenna systems operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods |
US9813127B2 (en) | 2012-03-30 | 2017-11-07 | Corning Optical Communications LLC | Reducing location-dependent interference in distributed antenna systems operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods |
US10136200B2 (en) | 2012-04-25 | 2018-11-20 | Corning Optical Communications LLC | Distributed antenna system architectures |
US10349156B2 (en) | 2012-04-25 | 2019-07-09 | Corning Optical Communications LLC | Distributed antenna system architectures |
EP2875589A4 (en) * | 2012-07-20 | 2016-03-23 | Adc Telecommunications Inc | Systems and methods for a self-optimizing distributed antenna system |
US9621293B2 (en) | 2012-08-07 | 2017-04-11 | Corning Optical Communications Wireless Ltd | Distribution of time-division multiplexed (TDM) management services in a distributed antenna system, and related components, systems, and methods |
US9973968B2 (en) | 2012-08-07 | 2018-05-15 | Corning Optical Communications Wireless Ltd | Distribution of time-division multiplexed (TDM) management services in a distributed antenna system, and related components, systems, and methods |
US10182409B2 (en) | 2012-09-14 | 2019-01-15 | Andrew Wireless Systems Gmbh | Uplink path integrity detection in distributed antenna systems |
US9894623B2 (en) | 2012-09-14 | 2018-02-13 | Andrew Wireless Systems Gmbh | Uplink path integrity detection in distributed antenna systems |
US9913147B2 (en) | 2012-10-05 | 2018-03-06 | Andrew Wireless Systems Gmbh | Capacity optimization sub-system for distributed antenna system |
US10412595B2 (en) | 2012-10-05 | 2019-09-10 | Andrew Wireless Systems Gmbh | Capacity optimization sub-system for distributed antenna system |
US9455784B2 (en) | 2012-10-31 | 2016-09-27 | Corning Optical Communications Wireless Ltd | Deployable wireless infrastructures and methods of deploying wireless infrastructures |
US9531452B2 (en) | 2012-11-29 | 2016-12-27 | Corning Optical Communications LLC | Hybrid intra-cell / inter-cell remote unit antenna bonding in multiple-input, multiple-output (MIMO) distributed antenna systems (DASs) |
US9647758B2 (en) | 2012-11-30 | 2017-05-09 | Corning Optical Communications Wireless Ltd | Cabling connectivity monitoring and verification |
US10361782B2 (en) | 2012-11-30 | 2019-07-23 | Corning Optical Communications LLC | Cabling connectivity monitoring and verification |
US9974074B2 (en) | 2013-06-12 | 2018-05-15 | Corning Optical Communications Wireless Ltd | Time-division duplexing (TDD) in distributed communications systems, including distributed antenna systems (DASs) |
US11291001B2 (en) | 2013-06-12 | 2022-03-29 | Corning Optical Communications LLC | Time-division duplexing (TDD) in distributed communications systems, including distributed antenna systems (DASs) |
US9715157B2 (en) | 2013-06-12 | 2017-07-25 | Corning Optical Communications Wireless Ltd | Voltage controlled optical directional coupler |
US11792776B2 (en) | 2013-06-12 | 2023-10-17 | Corning Optical Communications LLC | Time-division duplexing (TDD) in distributed communications systems, including distributed antenna systems (DASs) |
US9526020B2 (en) | 2013-07-23 | 2016-12-20 | Corning Optical Communications Wireless Ltd | Monitoring non-supported wireless spectrum within coverage areas of distributed antenna systems (DASs) |
US10292056B2 (en) | 2013-07-23 | 2019-05-14 | Corning Optical Communications LLC | Monitoring non-supported wireless spectrum within coverage areas of distributed antenna systems (DASs) |
US9247543B2 (en) | 2013-07-23 | 2016-01-26 | Corning Optical Communications Wireless Ltd | Monitoring non-supported wireless spectrum within coverage areas of distributed antenna systems (DASs) |
US9967754B2 (en) | 2013-07-23 | 2018-05-08 | Corning Optical Communications Wireless Ltd | Monitoring non-supported wireless spectrum within coverage areas of distributed antenna systems (DASs) |
US9661781B2 (en) | 2013-07-31 | 2017-05-23 | Corning Optical Communications Wireless Ltd | Remote units for distributed communication systems and related installation methods and apparatuses |
US9385810B2 (en) | 2013-09-30 | 2016-07-05 | Corning Optical Communications Wireless Ltd | Connection mapping in distributed communication systems |
US9178635B2 (en) | 2014-01-03 | 2015-11-03 | Corning Optical Communications Wireless Ltd | Separation of communication signal sub-bands in distributed antenna systems (DASs) to reduce interference |
US9775123B2 (en) | 2014-03-28 | 2017-09-26 | Corning Optical Communications Wireless Ltd. | Individualized gain control of uplink paths in remote units in a distributed antenna system (DAS) based on individual remote unit contribution to combined uplink power |
US9357551B2 (en) | 2014-05-30 | 2016-05-31 | Corning Optical Communications Wireless Ltd | Systems and methods for simultaneous sampling of serial digital data streams from multiple analog-to-digital converters (ADCS), including in distributed antenna systems |
US9807772B2 (en) | 2014-05-30 | 2017-10-31 | Corning Optical Communications Wireless Ltd. | Systems and methods for simultaneous sampling of serial digital data streams from multiple analog-to-digital converters (ADCs), including in distributed antenna systems |
US9525472B2 (en) | 2014-07-30 | 2016-12-20 | Corning Incorporated | Reducing location-dependent destructive interference in distributed antenna systems (DASS) operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods |
US9929786B2 (en) | 2014-07-30 | 2018-03-27 | Corning Incorporated | Reducing location-dependent destructive interference in distributed antenna systems (DASS) operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods |
US10256879B2 (en) | 2014-07-30 | 2019-04-09 | Corning Incorporated | Reducing location-dependent destructive interference in distributed antenna systems (DASS) operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods |
US9730228B2 (en) | 2014-08-29 | 2017-08-08 | Corning Optical Communications Wireless Ltd | Individualized gain control of remote uplink band paths in a remote unit in a distributed antenna system (DAS), based on combined uplink power level in the remote unit |
US10397929B2 (en) | 2014-08-29 | 2019-08-27 | Corning Optical Communications LLC | Individualized gain control of remote uplink band paths in a remote unit in a distributed antenna system (DAS), based on combined uplink power level in the remote unit |
US9929810B2 (en) | 2014-09-24 | 2018-03-27 | Corning Optical Communications Wireless Ltd | Flexible head-end chassis supporting automatic identification and interconnection of radio interface modules and optical interface modules in an optical fiber-based distributed antenna system (DAS) |
US9602210B2 (en) | 2014-09-24 | 2017-03-21 | Corning Optical Communications Wireless Ltd | Flexible head-end chassis supporting automatic identification and interconnection of radio interface modules and optical interface modules in an optical fiber-based distributed antenna system (DAS) |
US10659163B2 (en) | 2014-09-25 | 2020-05-19 | Corning Optical Communications LLC | Supporting analog remote antenna units (RAUs) in digital distributed antenna systems (DASs) using analog RAU digital adaptors |
US9788279B2 (en) | 2014-09-25 | 2017-10-10 | Corning Optical Communications Wireless Ltd | System-wide uplink band gain control in a distributed antenna system (DAS), based on per-band gain control of remote uplink paths in remote units |
US9420542B2 (en) | 2014-09-25 | 2016-08-16 | Corning Optical Communications Wireless Ltd | System-wide uplink band gain control in a distributed antenna system (DAS), based on per band gain control of remote uplink paths in remote units |
US10096909B2 (en) | 2014-11-03 | 2018-10-09 | Corning Optical Communications Wireless Ltd. | Multi-band monopole planar antennas configured to facilitate improved radio frequency (RF) isolation in multiple-input multiple-output (MIMO) antenna arrangement |
US10135533B2 (en) | 2014-11-13 | 2018-11-20 | Corning Optical Communications Wireless Ltd | Analog distributed antenna systems (DASS) supporting distribution of digital communications signals interfaced from a digital signal source and analog radio frequency (RF) communications signals |
US10523326B2 (en) | 2014-11-13 | 2019-12-31 | Corning Optical Communications LLC | Analog distributed antenna systems (DASS) supporting distribution of digital communications signals interfaced from a digital signal source and analog radio frequency (RF) communications signals |
US9729267B2 (en) | 2014-12-11 | 2017-08-08 | Corning Optical Communications Wireless Ltd | Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting |
US10135561B2 (en) | 2014-12-11 | 2018-11-20 | Corning Optical Communications Wireless Ltd | Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting |
US10523327B2 (en) | 2014-12-18 | 2019-12-31 | Corning Optical Communications LLC | Digital-analog interface modules (DAIMs) for flexibly distributing digital and/or analog communications signals in wide-area analog distributed antenna systems (DASs) |
US10187151B2 (en) | 2014-12-18 | 2019-01-22 | Corning Optical Communications Wireless Ltd | Digital-analog interface modules (DAIMs) for flexibly distributing digital and/or analog communications signals in wide-area analog distributed antenna systems (DASs) |
US10110308B2 (en) | 2014-12-18 | 2018-10-23 | Corning Optical Communications Wireless Ltd | Digital interface modules (DIMs) for flexibly distributing digital and/or analog communications signals in wide-area analog distributed antenna systems (DASs) |
US10361783B2 (en) | 2014-12-18 | 2019-07-23 | Corning Optical Communications LLC | Digital interface modules (DIMs) for flexibly distributing digital and/or analog communications signals in wide-area analog distributed antenna systems (DASs) |
US10292114B2 (en) | 2015-02-19 | 2019-05-14 | Corning Optical Communications LLC | Offsetting unwanted downlink interference signals in an uplink path in a distributed antenna system (DAS) |
US9807700B2 (en) | 2015-02-19 | 2017-10-31 | Corning Optical Communications Wireless Ltd | Offsetting unwanted downlink interference signals in an uplink path in a distributed antenna system (DAS) |
US10009094B2 (en) | 2015-04-15 | 2018-06-26 | Corning Optical Communications Wireless Ltd | Optimizing remote antenna unit performance using an alternative data channel |
US9681313B2 (en) | 2015-04-15 | 2017-06-13 | Corning Optical Communications Wireless Ltd | Optimizing remote antenna unit performance using an alternative data channel |
US9948349B2 (en) | 2015-07-17 | 2018-04-17 | Corning Optical Communications Wireless Ltd | IOT automation and data collection system |
US10560214B2 (en) | 2015-09-28 | 2020-02-11 | Corning Optical Communications LLC | Downlink and uplink communication path switching in a time-division duplex (TDD) distributed antenna system (DAS) |
US10236924B2 (en) | 2016-03-31 | 2019-03-19 | Corning Optical Communications Wireless Ltd | Reducing out-of-channel noise in a wireless distribution system (WDS) |
CN110169196A (en) * | 2016-12-27 | 2019-08-23 | Teko电信有限公司 | Restructural remote radio frequency unit for distributing antenna system |
IT201600131387A1 (en) * | 2016-12-27 | 2018-06-27 | Teko Telecom S R L | RECONFIGURABLE REMOTE RADIO UNIT FOR ANTENNA DISTRIBUTED SYSTEMS |
WO2018122690A1 (en) * | 2016-12-27 | 2018-07-05 | Teko Telecom S.R.L. | Reconfigurable radio remote unit for distributed antenna systems |
US10841977B2 (en) | 2016-12-27 | 2020-11-17 | Teko Telecom S.R.L. | Reconfigurable radio remote unit for distributed antenna systems |
US11818809B2 (en) | 2016-12-27 | 2023-11-14 | Teko Telecom S.R.L. | Reconfigurable radio remote unit for distributed antenna systems |
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ES2556990T3 (en) | 2016-01-21 |
CA2662840A1 (en) | 2008-03-06 |
EP2067269A2 (en) | 2009-06-10 |
WO2008027213A3 (en) | 2008-11-06 |
CA2662840C (en) | 2016-10-11 |
US7848770B2 (en) | 2010-12-07 |
EP2067269A4 (en) | 2012-11-07 |
CN101542928A (en) | 2009-09-23 |
JP5055369B2 (en) | 2012-10-24 |
CN101542928B (en) | 2014-02-19 |
EP2067269B1 (en) | 2015-10-07 |
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US20080058018A1 (en) | 2008-03-06 |
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