发明名称 |
Radio reception apparatus, radio transmission apparatus, and radio communication method |
摘要 |
Where first and second reference signals for a first and second communication system, respectively, are transmitted, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS for LTE-A, last half symbols in a time direction of a resource unit RB/Sub-frame defined in a frequency-time domain are used, and the CSI-RS is allocated in a position up to the last two symbols or in the last symbol, or the like, of a particular RB/Sub-frame and transmitted when a reference signal 4RS for LTE is transmitted to a reception apparatus in addition to transmitting CSI-RS for LTE-A. The reception apparatus receives CSI-RS allocated in the last half symbol of RB/Sub-frame based on CSI-RS allocation information, measures channel quality by using this CSI-RS, and transmits and reports feedback information. |
申请公布号 |
US9265042(B2) |
申请公布日期 |
2016.02.16 |
申请号 |
US201514698372 |
申请日期 |
2015.04.28 |
申请人 |
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA |
发明人 |
Hoshino Masayuki;Nishio Akihiko;Nakao Seigo;Imamura Daichi |
分类号 |
H04W72/04;H04W72/12;H04L5/00;H04L25/02;H04L1/00;H04L1/06;H04L1/20;H04B7/06;H04L1/18 |
主分类号 |
H04W72/04 |
代理机构 |
Pearne & Gordon LLP |
代理人 |
Pearne & Gordon LLP |
主权项 |
1. An integrated circuit for controlling a process, the process comprising:
mapping, in at least one mode of operation, a first reference signal for a first communication system in a plurality of symbols of both a former half and a latter half, the plurality of symbols being divided in the former half and the latter half according to a time direction of which a subframe is comprised; mapping, in the at least one mode of operation, a second reference signal for a second communication system to only a last two symbols in the latter half of the plurality of symbols, and transmitting the first reference signal and the second reference signal, wherein the first reference signal is a Long Term Evolution (LTE) reference signal and the second reference signal is an LTE-Advanced reference signal. |
地址 |
Torrance CA US |