公开(公告)号：US20150365157A1

公开(公告)日：2015-12-17

申请号：US14766514

申请日：2013-02-14

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Weidong YANG ,  Roy YANG ,  Yinyan WANG

IPC: H04B7/08 ,  H04W74/00 ,  H04B7/06 ,  H04B7/02

CPC classification number: H04B7/0811 ,  H04B7/024 ,  H04B7/0632 ,  H04B7/0802 ,  H04W74/006

Abstract: An apparatus and method for antenna selection in uplink coordinated multipoint communications, where a plural number of geographically separated antennas are present, forming a plural number of cells. This apparatus and method relates to selecting a PRACH configuration, sharing information regarding the selected PRACH preamble amongst cells; an user equipment, upon receiving instruction from its serving cell, transmits a PRACH preamble. All cells, including serving cell, detects the selected PRACH preamble in the received PRACH transmission transmitted by the user equipment, determining pathloss information regarding the quality of the detected selected PRACH preamble, and selecting a set of cooperative multipoint antennas from the plural number of antennas based on the determined channel quality information for this user equipment. This apparatus and method is also applicable for antenna selection in the case of a single cell with a plural number of geographically separated antennas.

Abstract translation: 在上行协调多点通信中天线选择的装置和方法，其中存在多个地理上分离的天线，形成多个小区。 该装置和方法涉及选择PRACH配置，在小区之间共享关于所选择的PRACH前导码的信息; 用户设备在从其服务小区接收到指令时，发送PRACH前导码。 包括服务小区在内的所有小区在由用户设备发送的所接收的PRACH传输中检测所选择的PRACH前导码，确定关于检测到的所选PRACH前导码的质量的路径损失信息，以及从多个天线中选择一组协作多点天线 基于该用户设备确定的信道质量信息。 在具有多个地理上分离的天线的单个小区的情况下，该装置和方法也适用于天线选择。