Acquired Portfolios

This lot is generally related to cellular networks. Techniques are disclosed to optimize communications on a channel between an access point and a client device having a center frequency and a bandwidth by establishing a connection, exchanging data through the channel, monitoring an interference level on the channel during the data exchange and switching the user device to other channels having better center frequency and/or bandwidth. The technology may be implemented in wireless communication, WLAN, etc.

This lot is generally related to wireless communication. Disclosed are improved networks for supporting large numbers of low user message rate devices having a network concentrator to authenticate user devices, a client registry to register user devices, and a low user message rate concentration point to send a broadcast control message to the devices. The technology may be implemented in wireless networks, base stations, network switches, routers, modems, etc.

This lot is generally related to OFDM networks. Disclosed are techniques to perform least square (LS) equalization on an OFDM signal which makes full use of channel state information (CSI), improves performance and requires minimal and simple calculations. The technique receives a modulated signal, demodulates by using fast Fourier transform (FFT) and processes FFT demodulated signal. The technique further processes channel estimator output signal to produce a CSI signal and decodes the CSI aided LS equalized signal. The technology may be implemented in OFDM networks, ultra-wideband devices, wireless networks, mobile communication networks, cellular networks, network switches, modems, routers, base stations, etc.

This lot is generally related to wireless communication systems. Disclosed is a unscheduled peer power save mode (PSM) to save battery life of wireless nodes by communicating with the peer node over a direct link. The system forms an indication frame at an access point (AP) for a client node, when in no service period has occurred for a period of time which is equal to an indication window. The system sends the formed indication frame from the AP node to the client node, receives the peer traffic indication from the access point and determines that the AP has traffic to send to the client node based on the indication frame. Also disclosed are techniques to adjust the duration of the indication window such as the duration of the indication window is increased if the arrival time of frames at the client node exceeds the indication window, and the duration is decreased if the arrival time of frames is less than the indication window. The technology may be implemented in mobile devices, portable electronic devices, laptop computers, cameras, etc.

This lot is generally related to data sharing in wireless mobile networks.  Disclosed are techniques to share data,  such as text, audio, or video data, in a wireless mobile network without involving a stationary device.  Techniques are disclosed to create a network of devices by receiving an identification information of a second mobile device to a first mobile device and an information which provides approximate physical distance between the first mobile device and the second mobile device.  Also disclosed are techniques to determine whether the first and the second mobile device can communicate with each other by comparing the identification of the second device to a list of identifications stored on the first mobile device and indicate direct connection availability if the identification matches.  The technology may be implemented in wireless networks, WLAN, cellular networks, etc.

This portfolio is generally related to wireless networks. Disclosed are techniques to improve implementation of wireless nodes using home network routing protocol. The technique submits a request to register wireless nodes, identify neighbor nodes, flood network with link state advertisements, construct switching rules and process received packets. Few techniques determine a network topology, calculate wireless link weights and send to first tier nodes. Also disclosed techniques to provide second tier and third tier nodes where nodes of each tier exchange packets with nodes of other tiers. The technology may be implemented in wireless networks, cellular mobile networks, network routers, switches, modems, base stations, wireless equipment, etc.

This lot is generally related to communication systems. Disclosed is a Multi-Input Multi-Output (MIMO) communication system to divide available frequency band in to multiple frequency channels to allow multiple-access by multiple users to achieve maximum performance. The communication system has a transmitter and a receiver consisting of multiple antennas for monitoring various parameters of the communication system by configuring the transmitter and receiver to communicate with each other operating in the same frequency channel. The system has a capability to operate in a frequency-bundle mode or hybrid mode to achieve maximum throughput, range, and reliability. Further disclosed is a control module for monitoring a set of information elements and metrics and switch the operations between the MIMO mode and the frequency-bundle or hybrid modes. The technology may be implemented in wireless communication systems, cellular data service such as GSM, CDMA, low-power wide-area networks, etc.

This lot is generally related to wireless LANs. Disclosed are techniques to allow wireless devices to use a global service set identifier (GSSID) enabled access point (AP) to transfer a 32 octet identification service set identifier (SSID) to a remotely located switch controller in the same WLAN. The conveyed SSID discloses information such as fully qualified domain name (FQDN), network access identifier (NAI) and uniform resource identifier (URI) to the switch controller. This technology can be implemented in wireless network access points, smart phones, tablets, laptops, etc.

This portfolio is generally related to data availability. Disclosed are techniques to predict the probability of the mobile device accessing specific types of user data based on the operating mode of the mobile device, determine data subsets that are more likely to be accessed and send subsets to devices. The technology may be implemented in mobile devices, PDAs, tablets, laptops and useful for communication networks.

This lot is generally related to wireless data communication. Techniques are disclosed to transmit multiple narrowband signals sequentially in time and at different center frequencies to improve time-of-arrival (ToA) accuracy and time/frequency offset wideband (TF-WB) allows data packets to be transmitted at fixed center frequencies to facilitate high-resolution ToA measurements using pre-existing wireless protocols. The technology may be implemented in Wireless LAN, Bluetooth, GSM/GPRS/EDGE, CDMA, etc.

This portfolio is generally related to network gateways. Disclosed are gateways to interconnect high speed WAN to a low speed WLAN using adaptable cross layer offload engine and rule check engine. The offload engine stores data coming from WAN in a non-secure data cache, rule engine performs stateless or stateful inspection of data and data is moved to a secure data cache of WLAN. The technology may be implemented in network equipment such as gateways, base stations, routers, switches, bridges, etc.

The invention is generally related to mobile networking. Disclosed are mobile networking techniques for providing maximize wireless resources to mobile users, based on behavioral pattern such as direction of travel, time of day, or bandwidth demand in a geographical location. Also disclosed techniques to seamlessly transfer the wireless device from one connection source to another by selecting the most cost efficient communication protocol and reduce cost. The techniques may be implemented in wireless mobile networks like ad-hoc wireless networking, vehicle communication/networking; geography based networking; location based services and wireless telecom networking, etc.