Patents Assigned to Celeno Communications Ltd.
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Patent number: 10154502Abstract: System and method for managing the spectrum of a multi-channel wireless communication system. Information related to other channels and bands is exchanged between a client associated to a first channel of the multi-channel wireless communication system and a multi-channel access point. The information includes, inter alia, capabilities of the access point and the client, working channel information of the access point, link quality metrics of the client in the other bands etc.Type: GrantFiled: July 9, 2012Date of Patent: December 11, 2018Assignee: Celeno Communications Ltd.Inventor: Nir Shapira
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Patent number: 9985708Abstract: System and method for dimension reduction and for channel and interference condition feedback in a Multi-User Multiple-Input-Multiple-Output (MU MIMO) wireless communication system. The method for dimension reduction includes determining a number of virtual antennas, vk, for beamformees pertaining to a multi user (MU) transmission group, reducing the dimension of said matrix by selecting a sub-set of antennas or by Eigen mode selection and sending a reduced dimension candidate transmit beamforming matrix or an effective channel matrix to a beamformer. The method for channel and interference condition feedback Interference condition includes sending to a beamformee metric indicative of the interference level from other streams.Type: GrantFiled: January 13, 2015Date of Patent: May 29, 2018Assignee: CELENO COMMUNICATIONS LTD.Inventors: Nir Shapira, Yaron Shany
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Patent number: 9345001Abstract: Some demonstrative embodiments of the invention include a method, apparatus for concurrently transmitting data to two or more wireless stations.Type: GrantFiled: September 10, 2013Date of Patent: May 17, 2016Assignee: Celeno Communications Ltd.Inventor: Nir Shapira
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Patent number: 9337913Abstract: System and method for enhancing performance of a wireless communication system, including communicating between an access point and at least one close client over a first RF channel, and communicating between an access point and at least one remote client via a repeater. The communication between the access point and the at least one remote client via the repeater includes communicating between an access point and the repeater over the first RF channel and communicating between the repeater and the at least one remote client over a second RF channel. The communication between the access point and the at least one close client over the first RF channel is substantially contemporaneous with the communication between the repeater and the at least one remote client over the second RF channel.Type: GrantFiled: June 14, 2012Date of Patent: May 10, 2016Assignee: Celeno Communications Ltd.Inventors: Nir Shapira, Oren Hencinski
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Patent number: 9325458Abstract: System and method for backoff correction of channel quality information (CQI). A correction factor is calculated based on a goodness measure such as packet error rate (PER). The selection of modulation and coding scheme (MCS) is made considering the channel quality information (CQI) adjusted by the correction factor. A meaningful goodness measure can be imposed if the goodness measure is very low. A different correction factor can be calculated for different confidence levels, MCSs and transmission modes.Type: GrantFiled: February 18, 2014Date of Patent: April 26, 2016Assignee: Celeno Communications Ltd.Inventors: Yaron Shany, Nir Shapira, Oren Hencinski, Shmuel Vagner, Amir Helfan, Ram Zamir
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Patent number: 9287944Abstract: System and method for Multi-User (MU) Multiple-Input-Multiple-Output (MIMO) transmission, the method including assigning to an originator station in a MU-MIMO wireless communication network, said originator station separate from a primary beamformer of the MU-MIMO communication network, permission for MU group management, and performing MU-MIMO transmission by the originator station to a plurality of stations in the MU-MIMO communication network.Type: GrantFiled: December 19, 2011Date of Patent: March 15, 2016Assignee: Celeno Communications Ltd.Inventor: Nir Shapira
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Patent number: 9231682Abstract: System and method for calculating a transmitter beamforming vector related to a channel vector h under per-antenna power constraints combined with total power constraint, under per-antenna power constraints combined with overall line of site (LOS) effective isotropic radiated power (EIRP) and under all three constraints. Calculating a transmitter beamforming vector may be done in the transmitter, in the receiver and feedback to the transmitter or in both. The method may be adapted to perform with a multi-antenna receiver and with multi-carrier systems.Type: GrantFiled: June 17, 2014Date of Patent: January 5, 2016Assignee: Celeno Communications Ltd.Inventors: Yaron Shany, Nir Shapira
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Patent number: 9071435Abstract: System and method for tuning transmission parameters based on estimated ratio between a signal to an estimated interference plus noise (SINR) of a user, in a multiple-user multiple-input multiple-output (MU-MIMO) communication system, the method including obtaining channel state information (CSI) related to a channel from an access point (AP) to users that participate in a next MU-MIMO transmission, wherein the AP, and the users pertain to the MU-MIMO communication system, obtaining error coefficients related to errors related to channel-ageing and to estimation noise of the CSI, and calculating the estimated SINR, wherein the estimated interference is related to power of the other users and to the estimated channel magnitude the user u, and to the error coefficients, wherein the estimated channel magnitude is derived from the CSI.Type: GrantFiled: August 9, 2011Date of Patent: June 30, 2015Assignee: Celeno Communications Ltd.Inventors: Yaron Shany, Nir Shapira, Gilad Kirshenberg
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Patent number: 8934328Abstract: System and method for dimension reduction and for channel and interference condition feedback in a Multi-User Multiple-Input-Multiple-Output (MU MIMO) wireless communication systems are provided herein. The method for dimension reduction includes determining a number of virtual antennas, vk, for beamformees pertaining to a multi user (MU) transmission group, reducing the dimension of the matrix by selecting a sub-set of antennas or by Eigen mode selection and sending a reduced dimension candidate transmit beamforming matrix or an effective channel matrix to a beamformer. The method for channel and interference condition feedback Interference condition includes sending to a beamformee metric indicative of the interference level from other streams.Type: GrantFiled: May 4, 2011Date of Patent: January 13, 2015Assignee: Celeno Communications Ltd.Inventors: Nir Shapira, Yaron Shany
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Patent number: 8768272Abstract: System and method for calculating a transmitter beamforming vector related to a channel vector h under per-antenna power constraints combined with total power constraint, under per-antenna power constraints combined with overall line of site (LOS) effective isotropic radiated power (EIRP) and under all three constraints. Calculating a transmitter beamforming vector may be done in the transmitter, in the receiver and feedback to the transmitter or in both. The method may be adapted to perform with a multi-antenna receiver and with multi-carrier systems.Type: GrantFiled: October 18, 2012Date of Patent: July 1, 2014Assignee: Celeno Communications Ltd.Inventors: Yaron Shany, Nir Shapira
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Publication number: 20140161045Abstract: System and method for backoff correction of channel quality information (CQI). A correction factor is calculated based on a goodness measure such as packet error rate (PER). The selection of modulation and coding scheme (MCS) is made considering the channel quality information (CQI) adjusted by the correction factor. A meaningful goodness measure can be imposed if the goodness measure is very low. A different correction factor can be calculated for different confidence levels, MCSs and transmission modes.Type: ApplicationFiled: February 18, 2014Publication date: June 12, 2014Applicant: Celeno Communications Ltd.Inventors: Yaron SHANY, Nir Shapira, Oren Hencinski, Shmuel Vagner, Amir Helfan, Ram Zamir
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Patent number: 8725090Abstract: System and method for calculating a transmitter beamforming vector related to a channel vector h under per-antenna power constraints combined with total power constraint, under per-antenna power constraints combined with overall line of site (LOS) effective isotropic radiated power (EIRP) and under all three constraints. Calculating a transmitter beamforming vector may be done in the transmitter, in the receiver and feedback to the transmitter or in both. The method may be adapted to perform with a multi-antenna receiver and with multi-carrier systems.Type: GrantFiled: July 31, 2012Date of Patent: May 13, 2014Assignee: Celeno Communications Ltd.Inventors: Yaron Shany, Nir Shapira
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Patent number: 8693960Abstract: System and method for calculating a transmitter beamforming vector related to a channel vector h under per-antenna power constraints combined with total power constraint, under per-antenna power constraints combined with overall line of site (LOS) effective isotropic radiated power (EIRP) and under all three constraints. Calculating a transmitter beamforming vector may be done in the transmitter, in the receiver and feedback to the transmitter or in both. The method may be adapted to perform with a multi-antenna receiver and with multi-carrier systems.Type: GrantFiled: July 31, 2012Date of Patent: April 8, 2014Assignee: Celeno Communications Ltd.Inventors: Yaron Shany, Nir Shapira
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Patent number: 8654825Abstract: System and method for backoff correction of channel quality information (CQI). A correction factor is calculated based on a goodness measure such as packet error rate (PER). The selection of modulation and coding scheme (MCS) is made considering the channel quality information (CQI) adjusted by the correction factor. A meaningful goodness measure can be imposed if the goodness measure is very low. A different correction factor can be calculated for different confidence levels, MCSs and transmission modes.Type: GrantFiled: February 28, 2011Date of Patent: February 18, 2014Assignee: Celeno Communications Ltd.Inventors: Yaron Shany, Nir Shapira, Oren Hencinski, Shmuel Vagner, Amir Helfan, Ram Zamir
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Publication number: 20140010196Abstract: Some demonstrative embodiments of the invention include a method, apparatus for concurrently transmitting data to two or more wireless stations.Type: ApplicationFiled: September 10, 2013Publication date: January 9, 2014Applicant: Celeno Communications Ltd.Inventor: Nir SHAPIRA
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Patent number: 8532078Abstract: Some demonstrative embodiments of the invention include a method, apparatus for concurrently transmitting data to two or more wireless stations.Type: GrantFiled: April 6, 2011Date of Patent: September 10, 2013Assignee: Celeno Communications Ltd.Inventor: Nir Shapira
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Publication number: 20130040580Abstract: System and method for calculating a transmitter beamforming vector related to a channel vector h under per-antenna power constraints combined with total power constraint, under per-antenna power constraints combined with overall line of site (LOS) effective isotropic radiated power (EIRP) and under all three constraints. Calculating a transmitter beamforming vector may be done in the transmitter, in the receiver and feedback to the transmitter or in both. The method may be adapted to perform with a multi-antenna receiver and with multi-carrier systems.Type: ApplicationFiled: October 18, 2012Publication date: February 14, 2013Applicant: CELENO COMMUNICATIONS LTD.Inventor: CELENO COMMUNICATIONS LTD.
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Patent number: 8301089Abstract: System and method for calculating a transmitter beamforming vector related to a channel vector h under per-antenna power constraints combined with total power constraint, under per-antenna power constraints combined with overall line of site (LOS) effective isotropic radiated power (EIRP) and under all three constraints. Calculating a transmitter beamforming vector may be done in the transmitter, in the receiver and feedback to the transmitter or in both. The method may be adapted to perform with a multi-antenna receiver and with multi-carrier systems.Type: GrantFiled: February 28, 2011Date of Patent: October 30, 2012Assignee: Celeno Communications Ltd.Inventors: Yaron Shany, Nir Shapira
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Patent number: 7489670Abstract: Devices, systems and methods of uplink/downlink communication in wireless network. For example, a wireless access point includes a transmitter to transmit a downlink frame having a duration field value equal to or greater than a sum of: a time period corresponding to transmission of the downlink frame, a time period corresponding to transmission of an acknowledgement frame, a constant waiting period, and a backoff period calculated using a maximum contention window parameter.Type: GrantFiled: December 27, 2005Date of Patent: February 10, 2009Assignee: Celeno Communications Ltd.Inventor: Nir Shapira