Method and apparatus for facilitating sensing in cognitive radio communications

摘要

Techniques are provided for the suppression of reference signal transmissions to enable sensing in cognitive radio communications. In one example, there is provided a method, operable by a network entity (e.g., evolved Node B), that may involve communicating with another network entity to determine parameters of a quiet period, the parameters comprising at least one of when the quiet period occurs and duration of the quiet period. The method may involve transmitting a reference signal in a first channel exclusively during a first plurality of subframes of a first frame period, wherein the first frame period further includes a quiet period during which no signals are transmitted, and performing during the quiet period a sensing operation with respect to the first channel.

主权项

1. A method operable by a network entity in a wireless communication system, comprising:
communicating with another network entity to determine parameters of a quiet period, the parameters comprising at least one of when the quiet period occurs and duration of the quiet period; transmitting, by the network entity, a reference signal in a first channel exclusively during a first plurality of subframes of a first frame period, wherein the first frame period further includes a second plurality of subframes corresponding to the quiet period during which no signals are transmitted, wherein the first channel is a white-space channel; transmitting, by the network entity, the reference signal in a second channel during the second plurality of subframes of the first frame period, wherein the second channel is a licensed channel; and performing, during the quiet period, a sensing operation with respect to the first channel.