Abstract: 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.

Abstract: A Wireless Local Area Network (WLAN) device includes multiple transmission/reception (TX/RX) chains, and control circuitry. The TX/RX chains include first TX/RX chains tuned to a first channel, and second TX/RX chains that are selectively tuned to the first channel or to a different second channel. The control circuitry is configured to receive, via at least one of the TX/RX chains, a frame preamble signal including a first part and a second part, which are both transmitted over either the first channel alone or over both the first and second channels, and the first part is decoded from the first channel alone, to make a decision, before receiving the entire first part, whether the second part is transmitted over the first channel alone or over both the first and second channels, and to tune the second TX/RX chains to the first channel or to the second channel, based on the decision.

Abstract: An apparatus includes a Base Station (BS) that includes an antenna array and circuitry. The antenna array is configured to transmit downlink transmissions and to receive uplink transmissions. The circuitry is configured to generate secret bits to be used for securing uplink transmissions from legitimate user devices, and to distribute the secret bits over one or more data streams destined to the legitimate user devices, to further generate one or more jamming streams, and to apply to the jamming streams beamforming that directs the jamming streams away from the legitimate user devices, to transmit the data streams and the jamming streams using the antenna array, to receive, via the antenna array, data that was encrypted by a legitimate user device based on the secret bits, and to recover the data by decoding the encrypted data using the secret bits.

Abstract: 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.

Abstract: A method includes, in a Wireless Local Area Network (WLAN) device that includes one or more primary transmission/reception (TX/RX) chains and an auxiliary reception (RX) chain, defining a first operational mode in which priority is given to transmission of the primary TX/RX chains, and a second operational mode in which the priority is given to reception of the auxiliary RX chain. communication is performed on a given communication channel using the primary TX/RX chains, and evaluation of signal activity is performed on one or more alternative communication channels using the auxiliary reception (RX) chain, while operating the WLAN device alternately in the first and second operational modes.

Abstract: A method includes, in a Wireless Local Area Network (WLAN) device, communicating on a given communication channel using one or more primary transmission/reception (TX/RX) chains. Concurrently with communicating on the given communication channel using the primary TX/RX chains, signal activity is evaluated on one or more alternative communication channels using an auxiliary reception (RX) chain whose hardware is partially shared with one of the primary TX/RX chains.

Abstract: A method for communication includes accepting in an Access Point (AP) data items for transmission over a wireless channel to multiple terminals served by the AP. Aggregate airtimes, which were previously allocated to the respective terminals on the wireless channel, are assessed. Transmission of the data items is scheduled depending on the aggregate airtimes.

Abstract: A method for communication includes generating a data transmission for transmission to a target receiver, and generating at least one jamming transmission having an amplitude that changes multiple times during the data transmission. The data transmission is transmitted to the target receiver using an antenna array, and the at least one jamming transmission is simultaneously transmitted using the antenna array.

Abstract: An apparatus for wireless communication includes a plurality of antennas, a master baseband integrated circuit (BBIC) and a slave BBIC. The antennas are configured to communicate a Multiple-Input Multiple-Output (MIMO) signal. The master BBIC is configured to process a first component of the MIMO signal that is communicated via a first subset of the antennas. The slave BBIC is configured to process a second component of the MIMO signal that is communicated via a second subset of the antennas. The master BBIC is further configured to control the slave BBIC so as to jointly communicate the MIMO signal, based on the first and second components, via the entire plurality of the antennas.

Abstract: A Wireless Local Area Network (WLAN) device includes multiple transmission/reception (TX/RX) chains, and control circuitry. The TX/RX chains include first TX/RX chains tuned to a first channel, and second TX/RX chains that are selectively tuned to the first channel or to a different second channel. The control circuitry is configured to receive, via at least one of the TX/RX chains, a frame preamble signal including a first part and a second part, which are both transmitted over either the first channel alone or over both the first and second channels, and the first part is decoded from the first channel alone, to make a decision, before receiving the entire first part, whether the second part is transmitted over the first channel alone or over both the first and second channels, and to tune the second TX/RX chains to the first channel or to the second channel, based on the decision.

Abstract: A wireless access point (AP) includes multiple transmit antennas and circuitry. The circuitry is configured to transmit multiple sounding frames to a receiver that includes one or more receive antennas, the sounding frames are transmitted via respective different partial subgroups of the transmit antennas, to receive from the receiver feedback information that specifies for each of the sounding frames a respective channel between the transmit antennas in the respective partial subgroup and the receive antennas, and, to determine a steering matrix based on the feedback information, and transmit to at least the receiver via at least some of the transmit antennas using the steering matrix.

Abstract: A wireless Local Area Network (WLAN) device includes a first transceiver and a second transceiver. The first transceiver is configured to communicate on a first frequency band, and includes a first Multi-Chip Module (MCM). The first MCM includes a first Radio-Frequency Integrated Circuit (RFIC) for transmitting and receiving on the first frequency band and a first BaseBand Integrated Circuit (BBIC). The second transceiver is configured to communicate on a second frequency band, and includes a second MCM. The second MCM includes a second RFIC for transmitting and receiving on the second frequency band and a second BBIC that is identical to the first BBIC.

Abstract: A method for communication includes accepting in an Access Point (AP) data items for transmission over a wireless channel to multiple terminals served by the AP. Aggregate airtimes, which were previously allocated to the respective terminals on the wireless channel, are assessed. Transmission of the data items is scheduled depending on the aggregate airtimes.

Abstract: An apparatus for wireless communication includes a plurality of antennas, a master baseband integrated circuit (BBIC) and a slave BBIC. The antennas are configured to communicate a Multiple-Input Multiple-Output (MIMO) signal. The master BBIC is configured to process a first component of the MIMO signal that is communicated via a first subset of the antennas. The slave BBIC is configured to process a second component of the MIMO signal that is communicated via a second subset of the antennas. The master BBIC is further configured to control the slave BBIC so as to jointly communicate the MIMO signal, based on the first and second components, via the entire plurality of the antennas.

Abstract: Some demonstrative embodiments of the invention include a method, apparatus for concurrently transmitting data to two or more wireless stations.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A wireless Local Area Network (WLAN) device includes a first transceiver and a second transceiver. The first transceiver is configured to communicate on a first frequency band, and includes a first Multi-Chip Module (MCM). The first MCM includes a first Radio-Frequency Integrated Circuit (RFIC) for transmitting and receiving on the first frequency band and a first BaseBand Integrated Circuit (BBIC). The second transceiver is configured to communicate on a second frequency band, and includes a second MCM. The second MCM includes a second RFIC for transmitting and receiving on the second frequency band and a second BBIC that is identical to the first BBIC.

Abstract: 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.