公开(公告)号：US20170086217A1

公开(公告)日：2017-03-23

申请号：US15363920

申请日：2016-11-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Song ZHU ,  Zhiqin YU ,  Zhenyu LI ,  Weiliang ZHANG

IPC: H04W72/12

CPC classification number: H04W72/1268 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L5/0064 ,  H04L27/0012 ,  H04W4/70 ,  H04W8/24 ,  H04W72/1289 ,  H04W84/042

Abstract: Embodiments of the present invention disclose a data transmission method, a base station, and user equipment. The method in the embodiments of the present invention includes: receiving, by a base station, a first target sequence and uplink data that are sent by user equipment; determining, by the base station according to a first mapping relationship, a first target uplink sending parameter corresponding to the first target sequence, where the first mapping relationship is used to indicate a correspondence between an uplink sending parameter and a sequence; and demodulating and decoding, by the base station, the uplink data according to the first target uplink sending parameter.

公开(公告)号：US20170005851A1

公开(公告)日：2017-01-05

申请号：US15266794

申请日：2016-09-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yiling WU ,  Tong JI ,  Zhiqin YU ,  Weiliang ZHANG

IPC: H04L27/26

CPC classification number: H04L27/2692 ,  H04L27/2657

Abstract: The present invention provides a synchronization signal receiving method, including: receiving, by a receive end, a synchronization sequence sent by a transmit end, where the synchronization sequence includes a carrier frequency synchronization sequence, the carrier frequency synchronization sequence is zc(m)=e±jπm(m+1+2q)/L, m=0, 1, . . . , L−1, qεZ, L indicates a length of the carrier frequency synchronization sequence, q indicates a parameter of the carrier frequency synchronization sequence, Z indicates an integer set, e±jπm(m+1+2q)/L indicates the (±jπm(m+1+2q)/L)th power of e, and e is a natural constant; and performing, by the receive end, frequency offset estimation according to the received synchronization sequence, to obtain a frequency offset estimation value. With the technical solutions of embodiments of the present invention, accuracy of frequency offset estimation can be improved.

Abstract translation: 本发明提供了一种同步信号接收方法，包括：由接收端接收由发送端发送的同步序列，其中同步序列包括载波频率同步序列，载波频率同步序列为zc（m）= e±jπm（m + 1 + 2q）/ L，m = 0,1。 。 。 ，L-1，qεZ，L表示载波频率同步序列的长度，q表示载波频率同步序列的参数，Z表示整数，e±jπm（m + 1 + 2q）/ L表示 ±jπm（m + 1 + 2q）/ L），e为自然常数; 并且根据接收到的同步序列，通过接收端进行频率偏移估计，以获得频率偏移估计值。 利用本发明的实施例的技术方案，可以提高频率偏移估计的精度。