Patent ID: 9277516
Filing Date: 2016-03-01
CPC Classification: H04L,H04W

Claim Text:
1. An apparatus for use in a base station in a wireless communication system, the apparatus comprising: a modulator configured to modulate a preamble sequence that is determined based on a carrier configuration and a bandwidth; a subcarrier mapper configured to map the modulated preamble sequence to subcarriers within a predefined subcarrier set that is determined by a predefined rule; and a transmitter configured to transmit the preamble sequence, wherein the carrier configuration is one of a configuration for a fully configured carrier and a configuration for a partially configured carrier, wherein control channels including synchronization, broadcast, multicast and unicast control signaling are configured for the fully configured carrier, and wherein a downlink only carrier with control channels to support downlink transmission is configured for the partially configured carrier.