公开(公告)号：US10326574B2

公开(公告)日：2019-06-18

申请号：US15511446

申请日：2014-12-10

Applicant: ZTE Corporation

Inventor： Xin Zhang ,  Wenfang Wang

IPC: H04L5/00 ,  H04L27/26

Abstract: Provided are a method and device for configuring a pilot, wherein the method includes: configuring a user pilot according to subcarrier indexes of REs occupied by the user pilot, wherein the subcarrier indexes of the REs occupied by the user pilot are in subcarrier indexes of REs occupied by user data on PUSCH, and include the following pilot parameters: REstart and RBnumber, and further include REset and/or REinterval; and adjusting power of a pilot at a transmitting end and performing pilot resource mapping according to Powerfactor corresponding to the pilot parameters, where Powerfactor=(REset+REinterval)/REset. Through the disclosure, the problem that a pilot design scheme of the PUSCH in the related art is poor on flexibility is solved.

公开(公告)号：US10038481B2

公开(公告)日：2018-07-31

申请号：US14655731

申请日：2013-08-14

Applicant: ZTE CORPORATION

Inventor： Chen Huang ,  Yajun Zhao ,  Linmei Mo ,  Hanqing Xu ,  Baoyu Sun ,  Yujie Li ,  Hongfeng Qin ,  Guofeng Chen ,  Hongfeng Yuan ,  Xin Zhang

IPC: H04B7/0456 ,  H04B7/06 ,  H04W72/04 ,  H04W74/00 ,  H04W88/08

CPC classification number: H04B7/0456 ,  H04B7/0486 ,  H04B7/0617 ,  H04W72/042 ,  H04W74/004 ,  H04W88/08

Abstract: Disclosed are a multi-antenna transmission method, a terminal and a base station, wherein, an eNB sends a UE a SRS transmission mode including new SRS transmission port information and/or a signaling for instructing the UE to perform antenna group alternate transmission as well as a control signaling required by the SRS transmission mode; the UE transmits a SRS using the abovementioned SRS transmission mode, and the eNB estimates a channel information according to the SRS and calculates and transmits a precoding matrix.

公开(公告)号：US09722745B2

公开(公告)日：2017-08-01

申请号：US14655730

申请日：2013-08-14

Applicant: ZTE CORPORATION

Inventor： Linmei Mo ,  Yajun Zhao ,  Baoyu Sun ,  Chen Huang ,  Hanqing Xu ,  Yujie Li ,  Hongfeng Qin ,  Guofeng Chen ,  Hongfeng Yuan ,  Xin Zhang

IPC: H04L5/00 ,  H04B7/024 ,  H04B1/04 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04W72/08 ,  H04L1/00 ,  H04W88/08

CPC classification number: H04L5/0035 ,  H04B1/0475 ,  H04B7/024 ,  H04B7/043 ,  H04B7/0632 ,  H04B7/0857 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0077 ,  H04L5/0048 ,  H04L5/006 ,  H04W72/082 ,  H04W88/08

Abstract: A method and base station for coordinated multi point data transmission are disclosed. The method includes: a base station receiving a per-cell CQI value reported by a UE; looking up an SINR-CQI mapping table according to the per-cell CQI value, and acquiring a subband/broadband SINR value; performing CQI recalculation according to the subband/broadband SINR value, and acquiring a recalculated subband/broadband CQI value; and selecting modulation and coding according to the recalculated subband/broadband CQI value to schedule data transmission. With the method and base station of the embodiments of the present document, in a CoMP system, in a joint transmission scenario, the accuracy of the CQI value used by the BS for scheduling is improved, and the oscillation during an AMC process is reduced.

公开(公告)号：US20160028456A1

公开(公告)日：2016-01-28

申请号：US14776617

申请日：2013-12-25

Applicant: ZTE CORPORATION

Inventor： Baoyu Sun ,  Yajun Zhao ,  Yujie Li ,  Xin Zhang ,  Linmei Mo ,  Hanqing Xu ,  Guofeng Chen ,  Chen Huang

IPC: H04B7/04 ,  H04B17/309 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0421 ,  H04B7/043 ,  H04B7/0452 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0682 ,  H04B17/24 ,  H04B17/309 ,  H04L25/0222 ,  H04L25/0224 ,  H04L25/03343

Abstract: A method for guaranteeing channel phase continuity of pre-coded RB groups, a base station and a computer-readable storage medium are described. The method includes that: a base station implements a channel estimation through a Sounding Reference Signal (SRS) measurement to obtain an uplink channel and obtains a corresponding downlink channel based on reciprocity of uplink and downlink channels; the base station calculates a weight phase correction factor based on the obtained downlink channel and corrects a pre-coding weight with the weight phase correction factor; and the base station pre-codes data according to the corrected pre-coding weight and sends the pre-coded data.

Abstract translation: 描述了用于保证预编码RB组，基站和计算机可读存储介质的信道相位连续性的方法。 该方法包括：基站通过探测参考信号（SRS）测量实现信道估计，以获得上行链路信道，并且基于上行链路和下行链路信道的互易性获得相应的下行链路信道; 基站基于所获得的下行链路信道计算权重相位校正因子，并用权重相位校正因子校正预编码权重; 并且基站根据校正的预编码权重对数据进行预编码并发送预编码数据。

公开(公告)号：US09912390B2

公开(公告)日：2018-03-06

申请号：US14776617

申请日：2013-12-25

Applicant: ZTE Corporation

Inventor： Baoyu Sun ,  Yajun Zhao ,  Yujie Li ,  Xin Zhang ,  Linmei Mo ,  Hanqing Xu ,  Guofeng Chen ,  Chen Huang

IPC: H04W4/00 ,  H04B7/0456 ,  H04B7/04 ,  H04B7/0452 ,  H04B7/06 ,  H04L25/02 ,  H04B17/24 ,  H04B17/309

CPC classification number: H04B7/0456 ,  H04B7/0421 ,  H04B7/043 ,  H04B7/0452 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0682 ,  H04B17/24 ,  H04B17/309 ,  H04L25/0222 ,  H04L25/0224 ,  H04L25/03343

Abstract: A method for guaranteeing channel phase continuity of pre-coded RB groups, a base station and a computer-readable storage medium are described. The method includes that: a base station implements a channel estimation through a Sounding Reference Signal (SRS) measurement to obtain an uplink channel and obtains a corresponding downlink channel based on reciprocity of uplink and downlink channels; the base station calculates a weight phase correction factor based on the obtained downlink channel and corrects a pre-coding weight with the weight phase correction factor; and the base station pre-codes data according to the corrected pre-coding weight and sends the pre-coded data.