Patent ID: 9351288
Filing Date: 2016-05-24
CPC Classification: H04L,H04W

Claim Text:
1. For use in a wireless communications network, a base station configured to communicate with a plurality of mobile stations, base station comprising: a transmit chain configured to transmit downlink timing synchronization and establish frequency synchronization with at least one of the plurality of mobile stations; a receive chain configured to receive, from the at least one of the plurality of mobile stations, at least one of: coarse sounding reference signal (SRS) and fine SRS; and processing circuitry configured to: wherein the receive chain is configured to receive multiple random access (RACH) probes transmitted by the at least one of the plurality of mobile stations in multiple slices, and wherein the processing circuitry is configured to detect the multiple RACH probes, measure at least one of signal strength and quality of the detected RACH probes, and determine which RACH probe associated with a certain uplink transmit (Tx) spatial processing scheme is preferable.