发明名称 |
Method and terminal apparatus for receiving reference signal |
摘要 |
A wireless communication system and a method for detecting downlink receiving power in the system are disclosed. N cells in the system respectively transmit data to at least one receiving terminal via N resource blocks using the same time-frequency resources; multiple channel state information reference signals (CSI-RSs) of a corresponding cell are set in each resource block, and orthogonality is maintained among the CSI-RSs of all the cells, wherein N is an integer greater than 1. Said method includes: an additional demodulation reference signal (DM-RS) used for indicating a receiving power is set in a puncture position in the resource block of the first cell which corresponds to a CSI-RS set in a resource block of another cell; and the receiving power of said first cell is detected according to said additional DM-RS. By using said method, the receiving power of a single cell in N cells can be detected, and the system overhead is not increased. |
申请公布号 |
US9197307(B2) |
申请公布日期 |
2015.11.24 |
申请号 |
US201514690721 |
申请日期 |
2015.04.20 |
申请人 |
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA |
发明人 |
Zhang Zhi;Xu Ming;Hoshino Masayuki;Imamura Daichi |
分类号 |
H04B7/005;H04W52/34;H04B7/06;H04L5/00;H04W72/04 |
主分类号 |
H04B7/005 |
代理机构 |
Pearne & Gordon LLP |
代理人 |
Pearne & Gordon LLP |
主权项 |
1. A method for receiving a reference signal, the method comprising:
receiving a demodulation reference signal (DM-RS) specific to a terminal, the DM-RS being mapped to at least one resource element among plural first resource elements in a resource block of a first cell; and demodulating data using the received DM-RS, wherein the resource element, to which the DM-RS is mapped, has a time and frequency that are same as that of one of at least two resource elements, to which a channel state information reference signal (CSI-RS) is mapped among plural second resource elements in a resource block of a second cell different from the first cell, and data is punctured or no data is transmitted in a resource element among the plural first resource elements, which has a time and frequency that are same as that of the other of said at least two resource elements, to which the CSI-RS is mapped among the plural second resource elements. |
地址 |
Torrance CA US |