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Patent Agency Ranking
公开(公告)号：AU2004306654B2
公开(公告)日：2009-07-30
申请号：AU2004306654
申请日：2004-07-08
Applicant: CISCO TECH INC
Inventor： DOUGLAS BRETTON LEE , PERAHIA ELDAD
Abstract: A method including wirelessly receiving a packet at a wireless station belonging to a cell of a wireless network, the network for communicating according to a wireless network standard, each transmitting station of the cell able to transmit a packet that includes cell identification information; and ascertaining at the physical layer level whether or not the received packet is from another station of the cell by ascertaining whether or not the received packet includes the cell identification information of the cell.
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公开(公告)号：CA2536494C
公开(公告)日：2017-01-31
申请号：CA2536494
申请日：2004-07-08
Applicant: CISCO TECH INC
Inventor： DOUGLAS BRETTON LEE , PERAHIA ELDAD
Abstract: A method including wirelessly receiving a packet at a wireless station belonging to a cell (Fig. 2A) of a wireless network, the network for communicating according to a wireless network standard, each transmitting station of the cell able to transmit a packet that includes cell identification information; and ascertaining at the physical layer level whether or not the received packet is from another station of the cell by ascertaining whether or not the received packet includes the cell identification information of the cell.
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公开(公告)号：CA2583111A1
公开(公告)日：2006-04-13
申请号：CA2583111
申请日：2005-08-23
Applicant: CISCO TECH INC
Inventor： DOUGLAS BRETTON LEE , HART BRIAN , PERAHIA ELDAD , LYONS DANIEL JOSEPH
IPC: H04B17/00
Abstract: A method and an apparatus in a first wireless station of a network transmitting to a second wireless station. The network uses multi-tone OFDM signals. The first station includes multiple antennas and a receive and a transmit signal path per antenna. Each receive signal path includes a discrete Fourier transformer determining the tones in a received signal, and each transmit signal path includes an inverse discrete Fourier transformer converting tones to a signal. The method includes determining channel estimates for each tone and each receive path while receiving from the second station, determining transmit weights to transmit to the second station, tone-by-tone weighting a signal for transmission to the second station to produce weighted tone sets for each transmit signal path, and transmitting the weighted tone sets. The first station is configured so that the weighting produces additive beamforming without the second station needing multiple antennas.
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公开(公告)号：EP1794908A4
公开(公告)日：2013-03-13
申请号：EP05790027
申请日：2005-08-23
Applicant: CISCO TECH INC
Inventor： PERAHIA ELDAD , DOUGLAS BRETTON LEE , HART BRIAN , LYONS DANIEL JOSEPH
CPC classification number: H04B7/0608 , H04B7/0602 , H04B7/0615 , H04L25/022 , H04L25/0224 , H04L25/03343 , H04L27/2601 , H04L2027/0095 , H04W84/12
Abstract: A method and an apparatus in a first wireless station of a network transmitting to a second wireless station. The network uses multi-tone OFDM signals. The first station includes multiple antennas and a receive and a transmit signal path per antenna. Each receive signal path includes a discrete Fourier transformer determining the tones in a received signal, and each transmit signal path includes an inverse discrete Fourier transformer converting tones to a signal. The method includes determining channel estimates for each tone and each receive path while receiving from the second station, determining transmit weights to transmit to the second station, tone-by-tone weighting a signal for transmission to the second station to produce weighted tone sets for each transmit signal path, and transmitting the weighted tone sets. The first station is configured so that the weighting produces additive beamforming without the second station needing multiple antennas.
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公开(公告)号：EP1668808A4
公开(公告)日：2011-05-25
申请号：EP04777778
申请日：2004-07-08
Applicant: CISCO TECH INC
Inventor： DOUGLAS BRETTON LEE , PERAHIA ELDAD
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