| 发明名称 | Pilot design for long term evolution uplink multi-input multi-output antenna system | ||
| 摘要 | A pilot transmission in a multiple antenna closed loop transmission time multiplexes a beam-specific pilot and an antenna-specific pilot in two short blocks of one uplink sub-frame. The beam-specific pilot is transmitted as an in-band pilot with the same beam as data to provide optimal data demodulation/estimation. The antenna-specific pilot is transmitted as an out-band pilot to provide optimal beam selection. | ||
| 申请公布号 | US9294180(B2) | 申请公布日期 | 2016.03.22 |
| 申请号 | US200711895616 | 申请日期 | 2007.08.23 |
| 申请人 | Nokia Technologies Oy | 发明人 | Tirkkonen Olav;Pajukoski Kari;Kang Jianfeng |
| 分类号 | H04B3/10;H04B7/06;H04L5/00;H04L25/02;H04J1/16;H04J3/14 | 主分类号 | H04B3/10 |
| 代理机构 | Harrington & Smith | 代理人 | Harrington & Smith |
| 主权项 | 1. A method, comprising: multiplexing an in-band pilot and an out-band pilot for providing a pilot transmission in response thereto in a multiple antenna closed loop transmission, and transmitting the in-band pilot and the out-band pilot in an uplink sub-frame, wherein said in-band pilot is a beam-specific pilot and said out-band pilot is an antenna-specific pilot, and wherein for beam-specific pilots, pilots are transmitted using the same beam as data transmission, and for antenna-specific pilots, orthogonal pilots are transmitted from multiple antennas. | ||
| 地址 | Espoo FI | ||