| 摘要 |
Embodiments of the present invention provide a method, an apparatus for sending and receiving a reference signal, and a terminal device. The method includes: when a bandwidth satisfies a given condition, sending or receiving a reference signal symbol only once in every N subframes; and when the given condition is not satisfied, increasing the sending or receiving of the reference signal. The method also includes adjusting a granularity of sending or receiving the reference signal with the change of the bandwidth, and the signaling and processes required during the adjustment process. By means of the method and apparatus, the reference signal overhead can be effectively reduced, while good communication quality is ensured, thereby achieving good compromise between communication effectiveness and reliability. |
