Patent ID: 8953536
Filing Date: 2015-02-10
Classification: H04L

Abstract:
1. A method for transmitting a signal from a user equipment in a wireless communication system that supports a legacy system and an enhanced system improved from the legacy system by adding one or more functions to the legacy system, the method comprising: if the user equipment is an enhanced user equipment based on the enhanced system, performing permutation for an uplink (UL) signal on a frequency axis in accordance with a first rule when the enhanced user equipment is connected to a base station with a legacy system support mode, and performing permutation for the UL signal on the frequency axis in accordance with a second rule when the enhanced user equipment is connected to the base station with a legacy system non-support mode; and transmitting the UL signal to the base station, wherein the enhanced user equipment performs permutation for the UL signal by using the first rule or the second rule based on a cell identity (ID) corresponding to a secondary advanced (SA) preamble received from the base station, wherein the first rule is defined in accordance with Tiles(s,n), where Tiles(s,n)=N wherein the second rule is defined in accordance with Tiles(s,n,t), where Tiles(s,n,t)=L wherein the enhanced user equipment performs permutation for the UL signal by setting UL_PermBase to the cell ID.