公开(公告)号：US20150381246A1

公开(公告)日：2015-12-31

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: H04B7/04 ,  H04B7/06 ,  H04W74/00 ,  H04W72/04

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.

Abstract translation: 公开了一种多天线发送方法，终端和基站，其中，eNB向UE发送包括新的SRS发送端口信息的SRS发送模式和/或用于指示UE进行天线组交替发送的信令 作为SRS传输模式所需的控制信令; UE使用上述SRS传输模式发送SRS，并且eNB根据SRS估计信道信息，并计算并发送预编码矩阵。

公开(公告)号：US20170257202A1

公开(公告)日：2017-09-07

申请号：US15511446

申请日：2014-12-10

Applicant: ZTE Corporation

Inventor： Xin ZHANG ,  Wenfang WANG

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L5/0051 ,  H04L27/2613

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：US20150381328A1

公开(公告)日：2015-12-31

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 ,  H04B1/04 ,  H04B7/04 ,  H04B7/08 ,  H04W72/08 ,  H04B7/02 ,  H04B7/06

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.

Abstract translation: 公开了一种用于协调多点数据传输的方法和基站。 该方法包括：接收由UE报告的每小区CQI值的基站; 根据每个小区的CQI值查找SINR-CQI映射表，获取子带/宽带SINR值; 根据子带宽度SINR值进行CQI重新计算，获取重新计算的子带宽/宽带CQI值; 并根据重新计算的子带/宽带CQI值选择调制和编码以调度数据传输。 利用本文的实施例的方法和基站，在CoMP系统中，在联合传输场景中，提高了BS用于调度的CQI值的精度，并降低了AMC过程中的振荡。