公开(公告)号：US20180248737A1

公开(公告)日：2018-08-30

申请号：US15903299

申请日：2018-02-23

Applicant: MediaTek Inc.

Inventor： Jiann-Ching Guey ,  Chun-Hsuan Kuo ,  Chao-Cheng Su ,  Lung-Sheng Tsai

IPC: H04L27/26 ,  H04J13/00 ,  H04J13/22

CPC classification number: H04L27/2655 ,  H04J11/0069 ,  H04J13/0062 ,  H04J13/22 ,  H04L5/0007 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2672 ,  H04L27/2675 ,  H04W72/042

Abstract: Techniques, schemes and examples pertaining to using even-length sequence for synchronization and device identification in wireless communications are described. A processor of an apparatus can generate a signal containing at least an even-length Zadoff-Chu (ZC) sequence and transmit the signal to a receiving device. The even-length ZC sequence identifies the apparatus, carries information for signaling, or functions in time-frequency synchronization. The processor can also receive a signal containing at least an even-length ZC sequence and detect the even-length ZC sequence in the received signal.

公开(公告)号：US09866299B2

公开(公告)日：2018-01-09

申请号：US14725138

申请日：2015-05-29

Applicant: MEDIATEK INC.

Inventor： Jiann-Ching Guey ,  Chao-Cheng Su ,  Ju-Ya Chen

IPC: H04B7/06 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04B7/0617 ,  H04J11/0079 ,  H04J2011/0096 ,  H04L5/0023 ,  H04L5/005 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2628 ,  H04L27/2655

Abstract: A beamforming system synchronization architecture is proposed to allow a receiving device to synchronize to a transmitting device in time, frequency, and spatial domain in the most challenging situation with very high pathloss. A periodically configured time-frequency resource blocks in which the transmitting device uses the same beamforming weights for its control beam transmission to the receiving device. A pilot signal for each of the control beams is transmitted in each of the periodically configured time-frequency resource blocks. The same synchronization signal can be used for all stages of synchronization including initial coarse synchronization, device and beam identification, and channel estimation for data demodulation.