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1.发明公开METHOD AND APPARATUS FOR RECEIVER WITH DUAL MODE AUTOMATIC GAIN CONTROL (AGC) 审中-公开方法和装置具有自动双模增益控制的接收器
公开(公告)号：EP2319187A1
公开(公告)日：2011-05-11
申请号：EP09791001.2
申请日：2009-07-30
IPC分类号： H04B1/10
CPC分类号： H04B1/109 , H04B1/1027
摘要： A method and apparatus for toggling between a first mode and a second mode of a receiver based on an input signal level comprising comparing a gain state of the receiver to at least one gain state thresholds; determining the presence of a jammer; and switching a current mode of the receiver to a new mode based on the presence of the jammer and the comparison of the gain state. In one aspect, the apparatus comprises two LNAs operating in different modes; a jammer detector to provide a jammer interrupt bit to indicate the presence of a jammer; and an automatic gain control (AGC) circuit coupled to the jammer detector for receiving the jammer interrupt bit, wherein the AGC circuit selects between the two LNAs based on the jammer interrupt bit and a gain state comparison.
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公开(公告)号：EP1779563B1
公开(公告)日：2009-05-06
申请号：EP05782488.0
申请日：2005-08-03
发明人： STEIN, Jeremy , YONA, Eli , WEISSMAN, Haim , LEVIANT, Michael
IPC分类号： H04B17/00
CPC分类号： H04B17/382 , H04B17/318
摘要： A method for estimating a size of reverse link resources provided by a base-station transceiver system (BTS), including performing respective first, second, and third measurements of first, second, and third signal strengths received at the BTS. The method also includes comparing the first measurement with the second measurement so as to determine an initial minimum signal strength, and adding at a predetermined time an aging value to the initial minimum signal strength so as to form an updated minimum signal strength. The method further includes forming a comparison between the updated minimum signal strength and the third measurement, determining from the comparison a minimum of the updated minimum signal strength and the third measurement to be a minimum received signal strength, and determining the size of the reverse link resources provided by the BTS in response to the minimum received signal strength.
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公开(公告)号：EP1221204B1
公开(公告)日：2008-04-16
申请号：EP00970801.7
申请日：2000-10-11
发明人： WEISSMAN, Haim , YONAH, Eli
IPC分类号： H04B1/52
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公开(公告)号：EP1293052A2
公开(公告)日：2003-03-19
申请号：EP01952894.2
申请日：2001-06-18
发明人： WEISSMAN, Haim , YONA, Eli
CPC分类号： H04B7/2609 , H04B7/02 , H04B7/10
摘要： A method for wireless communication, including positioning a first plurality of slave transceivers within a region and positioning a second plurality of slave transceivers within the region in positions spatially separated from the positions of the first plurality of slave transceivers. The method further includes receiving at the first plurality and at the second plurality of slave transceivers a reverse radio frequency (RF) signal generated by a mobile transceiver within the region and generating respective first and second slave signals responsive thereto. The method also includes conveying the first and second slave signals separately to a base transceiver station (BTS) external to the region, and processing the first and second slave signals conveyed to the BTS so as to recover information contained in the reverse RF signal generated within the region.
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公开(公告)号：EP1224821A2
公开(公告)日：2002-07-24
申请号：EP00973999.6
申请日：2000-10-27
发明人： WEISSMAN, Haim , YONAH, Eli
IPC分类号： H04Q7/30
CPC分类号： H04W88/08 , H04B7/0817 , H04B7/155 , H04W16/26
摘要： Repeater apparatus for conveying a radio-frequency (RF) signal into an environment closed-off to the RF signal, including a master transceiver unit having a master port which receives the RF signal, a local oscillator (LO), which generates a LO signal at a LO frequency, and a frequency divider which divides the LO frequency of the LO signal by an integer to produce a divided LO signal. The master transceiver unit also includes a master mixer coupled to the master port and the divider which generates an intermediate-frequency (IF) signal responsive to the RF signal and the LO signal. The apparatus includes one or more slave transceiver units, each unit positioned within the environment closed-off to the RF signal and including a frequency multiplier which generates a recovered LO signal at the LO frequency by multiplying the frequency of the divided LO signal by the integer, a slave mixer coupled to the multiplier which generates a recovered RF signal responsive to the recovered LO signal and the IF signal, and a slave port coupled to the slave mixer which receives the recovered RF signal therefrom and transmits the recovered RF signal into the closed-off environment. The apparatus further includes one or more cables coupled between the master transceiver unit and the one or more slave transceiver units which convey the IF signal and the divided LO signal between the master transceiver unit and the one or more slave transceiver units.
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公开(公告)号：EP1516443A1
公开(公告)日：2005-03-23
申请号：EP04759494.0
申请日：2004-04-13
发明人： WEISSMAN, Haim
IPC分类号： H04B7/08
CPC分类号： H04B7/022 , H04B7/0491 , H04W88/08
摘要： A base-station transceiver system (BTS) operative in a cellular telephone network, consisting of a main up-link port and a diversity up-link port which are adapted to operate cooperatively to receive up-link signals over-the-air from cellular telephones such that both of the ports receive the up-link signals from each of the cellular telephones. The two ports are coupled to receive signals from wired telephones, such that the main up-link port receives signals only from a first group of the wired telephones and the diversity up-link port receives signals only from a second group of the wired telephones. The system also includes signal processing circuitry which is adapted to receive the signals from the up-link ports and convey the signals over the network.
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公开(公告)号：EP1472868A1
公开(公告)日：2004-11-03
申请号：EP03707804.5
申请日：2003-02-07
发明人： WEISSMAN, Haim
CPC分类号： H04W88/16 , H04M7/006 , H04M2207/20 , H04W84/14
摘要： Telephone apparatus, including a cable television (CATV) network interface, which is adapted to be connected to a CATV network so as to receive downstream cellular telephone communication signals transmitted at a downstream intermediate frequency (IF) via the CATV network from a base-station transceiver system (BTS) operative in a cellular telephone network. The apparatus includes a telephone interface, which is adapted to connect to a cellular telephone operative in the cellular telephone network via a physical connection. The apparatus also includes signal conversion circuitry, which is adapted to convert the downstream communication signals received at the downstream IF via the CATV network interface to downstream radio-frequency (RF) cellular telephone signals compatible with the cellular telephone network, and to convey the downstream RF cellular telephone signals to the cellular telephone via the physical connection.
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公开(公告)号：EP1336258A2
公开(公告)日：2003-08-20
申请号：EP01997905.3
申请日：2001-11-14
发明人： WEISSMAN, Haim
IPC分类号： H04B7/005
摘要： A method for adjusting a power level in a communications network which includes a first plurality of signal-transmission-elements adapted to receive signals coupled to a second plurality of signal-transmission-elements adapted to transmit the signals, the method including de-activating at least some of the first plurality so that the signals are not received in the first plurality and de-activating at least some of the second plurality so that the signals are not transmitted from the second plurality. The method includes injecting a reference signal having a predetermined injected power level at the first plurality, receiving the reference signal at the second plurality, measuring a received power level of the reference signal at the second plurality, comparing the injected and received power levels, and, responsive to the comparison, setting a gain of at least one of the signal-transmission-elements comprised in the first and second pluralities.
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公开(公告)号：EP1221204A1
公开(公告)日：2002-07-10
申请号：EP00970801.7
申请日：2000-10-11
发明人： WEISSMAN, Haim , YONAH, Eli
IPC分类号： H04B1/52
摘要： A duplex radio transceiver, coupled to baseband circuitry and to an antenna, includes a receive chain, a transmit chain and a duplexer. The transmit chain includes filter components that attenuate signals originating from the transmit chain in a receive frequency band by a stop-band attenuation that is approximately equal to or greater than the stop-band attenuation of the duplexer in the receive band. Similarly, the receive chain includes filter components that attenuate signals in a transmit frequency band by a stop-band attenuation that is approximately equal to or greater than the stop-band attenuation of the duplexer in the transmit band. A bias control circuit senses a power level associated with radio signals in the transmit chain and adjusts an amplifier in the receive chain responsive to the power level.
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公开(公告)号：EP4122118A1
公开(公告)日：2023-01-25
申请号：EP21716583.6
申请日：2021-03-16
发明人： BERGER, Peer , LANDIS, Shay , BEN-ARI, Moshe , TOUBOUL, Assaf , BAR-OR TILLINGER, Amit , LEVITSKY, Michael , PARK, Cheol Hee , WEISSMAN, Haim , PARK, Jungsik , YEO, In Hyuck
IPC分类号： H04B7/06
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