Patent ID: 9408200
Filing Date: 2016-08-02
CPC Classification: H04J,H04L,H04W

Claim Text:
1. A method for receiving an uplink signal by a base station, the method comprising: transmitting, by the base station through higher layer signaling, a first cyclic shift parameter indicating one first cyclic shift value of predefined first cyclic shift values; transmitting, by the base station through the higher layer signaling, a second cyclic shift parameter indicating a set of second cyclic shift values usable by a user equipment among predefined second cyclic shift values; transmitting, by the base station through the higher layer signaling, a third cyclic shift parameter associated with an initial value of a pseudo-random sequence; transmitting, by the base station, control information for uplink data to the user equipment through a physical control channel; and receiving, by the base station, the uplink data according to the control information and a reference signal for demodulation of the uplink data, wherein the control information includes information indicating one second cyclic shift value among the set of second cyclic shift values, and wherein the reference signal is received using a cyclic shift hopping value determined based on the one first cyclic shift value, the one second cyclic shift value and the pseudo-random sequence.