Patent application number | Description | Published |
20130267163 | COMMUNICATIONS SECURITY IN MULTIPLE-ANTENNA WIRELESS NETWORKS - A system enhances communications security in a wireless local area network (WLAN). The system includes a multiple antenna array arranged to transmit and receive signals; and a transmitter/receiver coupled to the multiple antenna array and configured to transmit and receive the signals. The transmitter/receiver includes a beamformer, which in turn includes a signal processor component that generates a signal beam for transmission to an intended user, and a blinding component that computes one or more blinding beams using only channel state information of the intended user. The blinding beams have a zero inter-user interference condition with the signal beam. The transmitter/receiver transmits the signal beam and the blinding beams simultaneously | 10-10-2013 |
20130279391 | TRANSMISSION IN A NETWORK WITH ACTIVE AND SLEEPING CLIENTS - Methods, devices, and machine readable media are provided for transmission in a network with active and sleeping clients. Some examples can include transmitting a first multicast stream of data in response to an active wireless client being associated with the wireless network device at a particular time. The method can include transmitting a second multicast stream of the data after the first multicast stream in response to a sleeping wireless client being associated with the wireless network device at the particular time and in response to a delivery traffic indication message count expiring. The first and/or second multicast streams of the data can be retransmitted a number of times (e.g., at different data rates). An active/sleep status can be maintained for the wireless clients. A unicast stream can be transmitted when the number of clients does not exceed a threshold. | 10-24-2013 |
20130283050 | WIRELESS CLIENT AUTHENTICATION AND ASSIGNMENT - Methods, devices, and machine readable media are provided for wireless client authentication and assignment. Some examples can include a network device with a processing resource and a memory resource storing instructions executable by the processing resource to act as a default gateway and present a web portal for logon in response to a request from a wireless client prior to authentication of the wireless client, to send a dissociation command for the wireless client in response to an initial authentication of the wireless client, and to assign traffic to a local virtual local area network (VLAN) defined on an access point (AP) associated with the wireless client in response to a subsequent authentication of the wireless client. Some examples can include assigning the wireless client to an isolation VLAN that is tunneled via the network device prior to dissociation, where the local VLAN is not tunneled via the network device. | 10-24-2013 |
20130287070 | HYBRID PLATFORM FOR A SOFTWARE DEFINED RADIO - A hybrid platform for a software defined radio (SDR) includes a receive/transmit antenna, a radio frequency (RF) frontend, a baseband processor, and a SDR positioned along a signal path that couples the antenna, the RF frontend, and the baseband processor. The SDR includes a transmit processing chain, a receive processing chain, and a FPGA that includes control logic to reduce distortion caused by signal transmission within the SDR. | 10-31-2013 |
20140032742 | WIRELESS NETWORK DEVICE BUFFERS - A wireless network device includes operating system layer buffers used by an operating system and driver layer buffers used by a wireless network interface driver in the device. Memory stores a capacity bitmap managed by the wireless network interface driver. The capacity bitmap identifies a current capacity of each of the driver layer buffers and the capacity bitmap may be provided to the operating system. | 01-30-2014 |
20140036696 | Utilizing Client Mobile Devices for Wireless Network Monitoring - Example embodiments disclosed herein relate to utilizing client mobile devices for wireless network monitoring. Link quality data for wireless networks are measured by a plurality of wireless client devices and are provided to a network controller. The link quality data is usable to manage a wireless local area network (WLAN). The wireless networks include at least the WLAN and a cellular network. A recommendation for connection is provided to the wireless client devices, where the recommendation indicates if the cellular network is recommended or an access point of the WLAN. | 02-06-2014 |
20140211883 | TRANSMITTING A WIRELESS SIGNAL BASED ON DETECTED SIGNAL INTERFERENCE - A computing device can determine a radio frequency (RF) bandwidth in which one or more frames are to be transmitted by the computing device. The RF bandwidth is within the operating transmission bandwidth of the computing device. A signal interference having an interference bandwidth can interfere with the transmission of the one or more frames. In response to detecting the signal interference, one or more frames can be transmitted within the operating transmission bandwidth and not within the interference bandwidth. | 07-31-2014 |
20140286321 | METHOD OF ASSOCIATING A CLIENT WITH AN ACCESS POINT IN A WIRELESS LOCAL AREA NETWORK - A method of associating a client with an access point in a wireless local area network. The access point broadcasts a beacon announcing the existence of the access point. The beacon comprises a field which has a list of client identifiers of acceptable clients from which the access point will accept an association request. | 09-25-2014 |
20140294108 | Extrapolating Channel State Information ("CSI") Estimates From Multiple Packets Sent Over Different Antennas to Generate a Combined CSI Estimate for a MIMO-OFDM System - A method for extrapolating channel state information (“CSI”) estimates from multiple packets sent over different antennas to generate a combined CSI estimate for a MIMO-OFDM system is disclosed. Packets are received on m×n | 10-02-2014 |
20150016375 | Control of Frequency Channel Between Wireless Access Points According to Sequence - Embodiments herein relate to transferring control of a frequency channel between wireless access points (WAP) according to a sequence where the frequency channel is part of an industrial, scientific and medical (ISM) radio band. Each of the WAPs transfers control of the same frequency channel according to a sequence. The transfer of control in the sequence occurs between adjacent WAPs, and the first and last WAPs in the sequence are adjacent to each other. | 01-15-2015 |
20150078470 | Extrapolating Channel State Information ("CSI") Estimates From Multiple Packets Sent Over Different Frequency Channels to Generate a Combined CSI Estimate for a MIMO-OFDM System - A method for extrapolating channel state information (“CSI”) estimates from multiple packets sent over different channels to generate a combined CSI estimate for a MIMO-OFDM system is disclosed. Packets are received on an m×n×W | 03-19-2015 |