公开(公告)号：US09967005B2

公开(公告)日：2018-05-08

申请号：US14836620

申请日：2015-08-26

Applicant: QUALCOMM Incorporated

Inventor： John Ketchum ,  Mark Wallace ,  J. Rodney Walton ,  Steven Howard

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26 ,  H04L1/16 ,  H04L5/00 ,  H04L27/00 ,  H04W16/28 ,  H04W28/20 ,  H04W52/50

CPC classification number: H04B7/0421 ,  H04B7/043 ,  H04B7/0615 ,  H04B7/0669 ,  H04B7/0684 ,  H04B7/0697 ,  H04B7/0854 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0071 ,  H04L1/0618 ,  H04L1/08 ,  H04L1/16 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03343 ,  H04L27/2613 ,  H04L2027/0089 ,  H04W16/28 ,  H04W28/20 ,  H04W52/50

Abstract: Pilots suitable for use in MIMO systems and capable of supporting various functions are described. The various types of pilot include—a beacon pilot, a MIMO pilot, a steered reference or steered pilot, and a carrier pilot. The beacon pilot is transmitted from all transmit antennas and may be used for timing and frequency acquisition. The MIMO pilot is transmitted from all transmit antennas but is covered with different orthogonal codes assigned to the transmit antennas. The MIMO pilot may be used for channel estimation. The steered reference is transmitted on specific eigenmodes of a MIMO channel and is user terminal specific. The steered reference may be used for channel estimation. The carrier pilot may be transmitted on designated subbands/antennas and may be used for phase tracking of a carrier signal. Various pilot transmission schemes may be devised based on different combinations of these various types of pilot.

公开(公告)号：US10382106B2

公开(公告)日：2019-08-13

申请号：US15939145

申请日：2018-03-28

Applicant: QUALCOMM Incorporated

Inventor： John Ketchum ,  Mark Wallace ,  J. Rodney Walton ,  Steven Howard

IPC: H04B7/02 ,  H04B7/0417 ,  H04B7/0426 ,  H04B7/06 ,  H04B7/08 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26 ,  H04L1/16 ,  H04L27/00 ,  H04W16/28 ,  H04W28/20 ,  H04W52/50

Abstract: Pilots suitable for use in MIMO systems and capable of supporting various functions are described. The various types of pilot include—a beacon pilot, a MIMO pilot, a steered reference or steered pilot, and a carrier pilot. The beacon pilot is transmitted from all transmit antennas and may be used for timing and frequency acquisition. The MIMO pilot is transmitted from all transmit antennas but is covered with different orthogonal codes assigned to the transmit antennas. The MIMO pilot may be used for channel estimation. The steered reference is transmitted on specific eigenmodes of a MIMO channel and is user terminal specific. The steered reference may be used for channel estimation. The carrier pilot may be transmitted on designated subbands/antennas and may be used for phase tracking of a carrier signal. Various pilot transmission schemes may be devised based on different combinations of these various types of pilot.

公开(公告)号：US20150365147A1

公开(公告)日：2015-12-17

申请号：US14836620

申请日：2015-08-26

Applicant: QUALCOMM Incorporated

Inventor： John Ketchum ,  Mark Wallace ,  J. Rodney Walton ,  Steven Howard

IPC: H04B7/04 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04B7/0421 ,  H04B7/043 ,  H04B7/0615 ,  H04B7/0669 ,  H04B7/0684 ,  H04B7/0697 ,  H04B7/0854 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0071 ,  H04L1/0618 ,  H04L1/08 ,  H04L1/16 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03343 ,  H04L27/2613 ,  H04L2027/0089 ,  H04W16/28 ,  H04W28/20 ,  H04W52/50

Abstract: Pilots suitable for use in MIMO systems and capable of supporting various functions are described. The various types of pilot include—a beacon pilot, a MIMO pilot, a steered reference or steered pilot, and a carrier pilot. The beacon pilot is transmitted from all transmit antennas and may be used for timing and frequency acquisition. The MIMO pilot is transmitted from all transmit antennas but is covered with different orthogonal codes assigned to the transmit antennas. The MIMO pilot may be used for channel estimation. The steered reference is transmitted on specific eigenmodes of a MIMO channel and is user terminal specific. The steered reference may be used for channel estimation. The carrier pilot may be transmitted on designated subbands/antennas and may be used for phase tracking of a carrier signal. Various pilot transmission schemes may be devised based on different combinations of these various types of pilot.

Abstract translation: 描述适用于MIMO系统并能够支持各种功能的飞行员。 各种类型的导频包括信标导频，MIMO导频，导向参考或导向导频，以及载波导频。 信标导频从所有发射天线发射，并可用于定时和频率采集。 MIMO导频是从所有发射天线发射的，但由分配给发射天线的不同正交码覆盖。 MIMO导频可以用于信道估计。 引导参考在MIMO信道的特定本征模式上发送，并且是用户终端特定的。 转向参考可用于信道估计。 载波导频可以在指定的子带/天线上发射，并且可以用于载波信号的相位跟踪。 可以基于这些各种类型的飞行员的不同组合来设计各种导频传输方案。