Reference signal design for cell search in an orthogonal wireless communication system

摘要

Systems and methodologies are described that facilitate efficient cell acquisition in a wireless communication system. In one aspect, a reference signal for use in cell acquisition can be constructed in a bandwidth-agnostic manner such that it contains a common central portion in a predetermined frequency band that is independent of a bandwidth utilized by an associated wireless communication system. The central portion can be constructed as a two-dimensional block in time and frequency that spans a default cell search bandwidth, a predetermined bandwidth specified by synchronization codes or other signals, or another suitable bandwidth. A reference signal can then be constructed form the central portion by tiling or expanding the central portion such that it spans the entire system bandwidth.

主权项

1. A method for facilitating cell acquisition in a wireless communication system, comprising:
transmitting, by a base station, one or more synchronization codes over a common cell search bandwidth, the common cell search bandwidth being a same bandwidth for a plurality of available system bandwidths; generating, by the base station, a central portion for a reference signal, the central portion spanning the common cell search bandwidth, the central portion for the reference signal being independent of the plurality of available system bandwidths; and generating, by the base station, the reference signal by providing extensions of the generated central portion such that the reference signal spans a system bandwidth selected from among the plurality of available system bandwidths; and transmitting, by the base station, the reference signal over the selected system bandwidth.