Patent ID: 9729291
Date: 2017-08-08
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method for transmission of a reference signal, comprising: determining, by a base station, an antenna port of a reference signal corresponding to a broadcast channel; determining, by the base station, a complex-valued modulation symbol of the reference signal according to a first parameter of the reference signal, wherein the first parameter of the reference signal is determined according to the number of resource blocks occupied by the broadcast channel; and transmitting, by the base station, at the determined antenna port of the reference signal, the determined complex-valued modulation symbol of the reference signal to a user equipment, determining, by the base station, a subcarrier of the complex-valued modulation symbol of the reference signal according to the first parameter of the reference signal, wherein the transmitting, by the base station, at the determined antenna port of the reference signal, the determined complex-valued modulation symbol of the reference signal to the user equipment, comprises: transmitting, by the base station, at the determined antenna port of the reference signal and on the determined subcarrier, the determined complex-valued modulation symbol of the reference signal to the user equipment, and wherein the antenna port of the reference signal corresponding to the broadcast channel comprises: two or four antenna ports among antenna ports a, b, c and d, wherein a, b, c and d are any positive integers, wherein determining, by the base station, the subcarrier of the complex-valued modulation symbol of the reference signal according to the first parameter of the reference signal comprises: in a case of a normal cyclic prefix (CP), determining, by the base station, the subcarrier of the complex-valued modulation symbol of the reference signal according to formula (1) as follows: the formula (1) is: wherein k is a subcarrier index, n is the first parameter of the reference signal, N or, in a case of an extended CP, determining, by the base station, the subcarrier of the complex-valued modulation symbol of the reference signal according to formula (2) as follows: the formula (2) is: wherein k is a subcarrier index, n is the first parameter of the reference signal, N