公开(公告)号：US20130136023A1

公开(公告)日：2013-05-30

申请号：US13746134

申请日：2013-01-21

Applicant: QUALCOMM INCORPORATED

Inventor： Xiaoxia Zhang ,  Darshan Jetly ,  Hao Xu ,  Robert Fuchs

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04J13/0062 ,  H04L5/0007 ,  H04L25/0206 ,  H04L25/0228 ,  H04W24/10 ,  H04W28/04 ,  H04W72/00 ,  H04W74/0833

Abstract: Providing for noise estimation in wireless communication, and particularly for access request signals transmitted by a user equipment (UE), is described herein. By way of example, a wireless signal receiver can employ unused signal dimensions of a wireless network for noise estimation. In addition, the unused signal dimensions can be selected for time-frequency resources that are associated with a particular wireless channel, in order to obtain a noise estimate for that channel. By employing unused signal dimensions, a noise measurement is likely to include no other signal transmissions, and provide an accurate estimate of noise on that channel. According to various aspects of the subject disclosure, one or more Chu sequences employed for signal transmissions, root sequences thereof, or one or more cyclic shifts of a root sequence can be employed for the unused signal dimension.

Abstract translation: 在这里描述了在无线通信中，特别是用于由用户设备（UE）发送的接入请求信号的噪声估计。 作为示例，无线信号接收机可以采用无线网络的未使用的信号维度进行噪声估计。 此外，可以为与特定无线信道相关联的时间 - 频率资源选择未使用的信号维度，以便获得该信道的噪声估计。 通过采用未使用的信号尺寸，噪声测量可能不包括其他信号传输，并且提供该信道上的噪声的精确估计。 根据本发明的各个方面，可以对未使用的信号维度采用用于信号传输，根系序列或根序列的一个或多个循环移位的一个或多个Chu序列。

公开(公告)号：US09319893B2

公开(公告)日：2016-04-19

申请号：US13746134

申请日：2013-01-21

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Darshan Jetly ,  Hao Xu ,  Robert Fuchs

IPC: H04W72/04 ,  H04W24/00 ,  H04J13/00 ,  H04L25/02 ,  H04W24/10 ,  H04L5/00 ,  H04W28/04 ,  H04W72/00 ,  H04W74/08

CPC classification number: H04W24/00 ,  H04J13/0062 ,  H04L5/0007 ,  H04L25/0206 ,  H04L25/0228 ,  H04W24/10 ,  H04W28/04 ,  H04W72/00 ,  H04W74/0833

Abstract: Providing for noise estimation in wireless communication, and particularly for access request signals transmitted by a user equipment (UE), is described herein. By way of example, a wireless signal receiver can employ unused signal dimensions of a wireless network for noise estimation. In addition, the unused signal dimensions can be selected for time-frequency resources that are associated with a particular wireless channel, in order to obtain a noise estimate for that channel. By employing unused signal dimensions, a noise measurement is likely to include no other signal transmissions, and provide an accurate estimate of noise on that channel. According to various aspects of the subject disclosure, one or more Chu sequences employed for signal transmissions, root sequences thereof, or one or more cyclic shifts of a root sequence can be employed for the unused signal dimension.