Patent ID: 9313677
Filing Date: 2016-04-12
CPC Classification: H04L,H04W

Claim Text:
1. A method for sending a channel measurement reference signal, comprising the following steps: during one sending period, sending the channel measurement reference signal of each port by a base station in one subframe or two adjacent subframes and sending the channel measurement reference signal of each port repeatedly in full bandwidth with equal space by taking at least one resource block (RB) as the predetermined a predetermined composition unit; wherein newly designing channel measurement reference signals with {4, 8} ports, when the number of actual antenna ports is equal to 4 or 8, mapping the channel measurement reference signals with 4 or 8 ports on corresponding subcarriers such that the newly designed channel measurement reference signal with 4 or 8 ports achieves a downstream channel measurement of the long-term evolution advance system; and when the number of actual antenna ports is equal to 1 or 2, the common reference signal of the LTE a LTE system is reused by the channel measurement reference signal as a channel measurement reference signal, so as to achieve the downstream channel measurement of the long-term evolution advance system; wherein the pattern of the channel measurement reference signal with 4 ports and that of the first 4 ports of the channel measurement reference signal with 8 ports are the same.