Abstract: Technologies directed to hash spreading to extend a wireless coverage are described. One method includes receiving input bits and control information that specifies a first data rate and a second modem scheme having a second signal range that is greater than a first signal range corresponding to a first modem scheme. The method generates a first sequence of bits by scrambling the input bits, the first sequence of bits having a first number of bits. The method generates a second sequence of bits by hash spreading the first sequence of bits using a set of spreading codes. The second sequence of bits has a second number of bits greater than the first number of bits. The method generates first symbols by modulating the second sequence, converts the first symbols into radio frequency (RF) signals, and sends the RF signals to the second wireless device.

Abstract: Example antenna positioning methods for a first base station and communication apparatus are described. One example method includes receiving a first reference signal received power (RSRP) value by a server from a first base station, where the first RSRP value is measured by the first base station and is of a reference signal from a first neighboring base station of the first base station. The server determines an antenna azimuth of the first base station based on an RSRP set corresponding to the first neighboring base station and the first RSRP value, where the RSRP set corresponding to the first neighboring base station includes N RSRP values, and the N RSRP values correspond to N antenna azimuths of the first base station.