Patent ID: 9584239
Date: 2017-02-28
CPC Classifications: H04B,H04J,H04W

Claim:
1. A wireless device to transmit and receive Radio Frequency (RF) signals using space-time channels in a wireless network, the wireless device comprising: a processor to process digital signals converted to and from the RF signals; a scheduler circuit to schedule variable length data packets having differing lengths for transmission to selected mobile stations in the wireless network, the scheduler circuit configured to schedule the variable length data packets for transmission based on transmission times to simultaneously transmit on a number of spatial channels to the mobile stations by filling the number of spatial channels using data packets buffered for all stations, the scheduler circuit being configured to buffer for a number of stations greater than the number of the spatial channels; an RF transceiver to receive and transmit the RF signals using the space-time channels by using an adaptive antenna array with a beamforming algorithm to achieve spatial diversity; and a fragmentor circuit component configured to fragment and a code rate adjuster circuit component configured to adjust code rates of Forward-Correction (FEC) codes, to adjust the size of the data packets, wherein the packets are either fragmented or the code rate is adjusted or both in order to optimally fill the space-time channels with fragmented and variable FEC length data packets, and wherein the number of spatial channels is a constant greater than zero and less than or equal to a number of antennas at a base station, and wherein the wireless device is configured to send multiple schedules in a protected time interval to the mobile stations.