Patent ID: 9270436
Filing Date: 2016-02-23
CPC Classification: H04L,H04W

Claim Text:
1. A method for configuring a Cell-Specific Reference Signal (CRS) in a cell including a central area and a marginal area, wherein the central area is an area in which a difference value of Reference Signal Received Power (RSRP) between the cell and a neighbour cell is higher than a predefined threshold and the marginal area is an area in which the difference value of Reference Signal Received Power (RSRP) between the cell and the neighbour cell is lower than the predefined threshold, the method comprising: dividing the CRS into a central CRS, a marginal CRS and a common CRS, wherein the central CRS is a CRS which is located on a transmission resource section used in the central area of the cell and is on a same symbol as a dedicated channel of the central area; the marginal CRS is a CRS which is located on a transmission resource section used in the marginal area of the cell and is on a same symbol as a dedicated channel of the marginal area; and the common CRS is a CRS, except for the central CRS and the marginal CRS, which is adjacent to a downlink common channel in frequency domain and is on a same symbol as the downlink common channel; configuring a value that is obtained by adding a fixed first power value to a preset reference Energy Per Resource Element (EPRE), as an EPRE value of the marginal CRS; configuring a value that is obtained by subtracting a fixed second power value from the preset reference EPRE, as an EPRE value of the central CRS; configuring the reference EPRE as an EPRE value of the common CRS; and receiving and transmitting data between the cell and a User Equipment (UE) with respect to the configured values.