Patent ID: 9681312
Date: 2017-06-13
CPC Classifications: H04J,H04L,H04W

Claim:
1. A method for sending a reference signal, comprising: selecting, by a base station, an ID for generating a reference signal initialization sequence for a terminal from candidate identifiers (IDs), wherein the candidate IDs comprise a cell ID and one or more constant IDs; and generating, by the base station, a reference signal initialization sequence for the terminal according to the selected ID; wherein a formula for generating the reference signal initialization sequence is: wherein n generating, by the base station, a reference signal initialization sequence generation indication according to the selected ID; sending, by the base station, the indication to the terminal, wherein the indication indicates the terminal to generate the reference-signal initialization sequence according to the indication; and sending, by the base station, the reference signal generated based upon the reference signal initialization sequence over the time-frequency resource to the terminal.