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：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。