| Airspan Networks Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120082104 | APPARATUS AND METHOD FOR CONTROLLING A WIRELESS NETWORK - A wireless network, connecting network users to a communications network, comprises base stations connected to the communications network and terminals connected to the network users, each terminal having a link with a base station to form a base station/terminal pair, the links established over a wireless resource comprising resource blocks. The method comprises: determining, for each base station/terminal pair, a set of resource utilisation fractions; determining a set of co-channel interference matrices for each network component, distributing, to each base station, corresponding elements from the sets of resource utilisation fractions and the sets of co-channel interference matrices; suppressing, in each network component, co-channel interference in dependence on the determined co-channel interference matrix; and dynamically establishing links required to handle the network traffic for each base station by selecting from the resource blocks in accordance with the resource utilisation fractions. | 04-05-2012 |
| 20120082061 | APPARATUS AND METHOD FOR CONTROLLING A WIRELESS FEEDER NETWORK - An apparatus and method are provided for controlling a wireless feeder network which connects access base stations to a communications network. The wireless feeder network comprises a plurality of feeder base stations connected to the communications network and a plurality of feeder terminals connected to the plurality of access base stations. A sounding schedule is determined for the wireless feeder network in dependence on a visibility matrix, the visibility matrix indicative of visibility via the wireless feeder network between each of the plurality of feeder base stations and each of the plurality of feeder terminals. Then a sounding procedure within the wireless feeder network is controlled in accordance with the sounding schedule. The visibility matrix enables a coordinated sounding procedure to be carried out, allowing more accurate channel metrics for the wireless channels of the network to be determined which are not adversely affected by interference between elements of the network. | 04-05-2012 |
| 20120082050 | APPARATUS AND METHOD FOR CONTROLLING A WIRELESS FEEDER NETWORK - An apparatus and method are provided for controlling a wireless feeder network used to couple access base stations of an access network with a communications network. The wireless feeder network connects base stations coupled to the communications network and feeder terminals coupled to associated access base stations. Each feeder terminal has a feeder link with a feeder base station. The method includes allocating resource blocks for the feeder base stations and feeder terminals to establish the feeder links. The resource blocks are allocated between a centrally administered schedule and at least one feeder base station administered schedule. Network traffic being carried by the feeder links is monitored to determine at least one characteristic. The resource blocks are reallocated between the centrally administered schedule and the at least one feeder base station administered schedule in dependence on the at least one characteristic of the network traffic. | 04-05-2012 |
| 20120082044 | APPARATUS AND METHOD FOR CONTROLLING A WIRELESS FEEDER NETWORK - An apparatus and method are provided for controlling a wireless feeder network used to couple access base stations of an access network with a communications network. The wireless feeder network comprises a plurality of feeder base stations coupled to the communications network and a plurality of feeder terminals coupled to associated access base stations. Each feeder terminal has a feeder link with a feeder base station, and the feeder links are established over a wireless resource comprising a plurality of resource blocks. Sounding data obtained from the wireless feeder network is used to compute an initial global schedule to allocate to each feeder link at least one resource block, and the global schedule is distributed whereafter the wireless feeder network operates in accordance with the currently distributed global schedule to pass traffic between the communications network and the access base stations. Using traffic reports received during use, an evolutionary algorithm is applied to modify the global schedule, with the resultant updated global schedule then being distributed for use. This enables the allocation of resource blocks to individual feeder links to be varied over time taking account of traffic within the wireless feeder network, thereby improving spectral efficiency. | 04-05-2012 |
| 20080198793 | POINT TO MULTIPOINT DEVICE FOR COMMUNICATION WITH A PLURALITY OF TELECOMMUNICATIONS UNITS - A point to multipoint device for use in a wireless network to provide wireless communication with a plurality of telecommunications units is described, for communication from the point to multipoint device to the telecommunications units, the point to multipoint device being operable to employ multiple sets of beams, at any point in time one set being used. The point to multipoint device comprises beam set generation logic for generating the multiple sets of beams arranged into one or more groups, each group comprising one beam from each set. Within each group the beams of that group are orthogonal with respect to each other, and each beam within each set is generated randomly with respect to other beams in that set. An interface is provided for receiving a synchronisation signal issued to all point to multipoint devices in the wireless network. Beam switching logic is then used to determine, having regard to the synchronisation signal, switch times at which the point to multipoint device switches from one set of beams to another set of beams, the switch times being the same for all point to multipoint devices in the wireless network. An antenna array is controlled by the beam switching logic to produce at any point in time one of the sets of beams for transmitting data forming the communication to the telecommunications units. The use of such sets of beams has been found to lower the average co-channel interference observed within the wireless network. | 08-21-2008 |
