公开(公告)号：US20160037511A1

公开(公告)日：2016-02-04

申请号：US14776952

申请日：2013-03-15

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Zoltan VINCZE ,  Csaba VULKAN ,  Arpad DROZDY

IPC: H04W72/04 ,  H04B7/02 ,  H04B7/06

CPC classification number: H04W72/0426 ,  H04B7/024 ,  H04B7/0626 ,  H04W92/20

Abstract: A method for coordinated multipoint transmission includes collecting, in a serving CoMP-MA, channel state information, CSIs, reported by terminals served by eNBs within a cooperating set. The serving CoMP-MA selects dominant interferers as candidate transmitting eNBs for a terminal. CoMP joint transmission is initiated by forwarding, to the candidate transmitting eNBs, PDCP PDUs received from SGW and targeted to the selected terminal, and by setting the status of the terminal to joint transmission. High and low thresholds of PDCP buffers of the serving CoMP-MA are adjusted. As information required for air interface scheduling becomes available, the method includes extracting, in the serving CoMP-MA, radio resource allocations, RLC and MAC headers, references to user plane data, and precoding matrices from protocol entities, and forwarding them to the transmitting eNBs that have acknowledged PDCP PDUs, in order the transmitting CoMP-MA to prepare air interface for the terminal.

Abstract translation: 用于协调多点传输的方法包括在服务的CoMP-MA中收集由协作集中的eNB所服务的终端报告的信道状态信息。 服务的CoMP-MA选择主要干扰源作为终端的候选发射eNB。 通过向候选发送eNB转发从SGW接收的目标到所选终端的PDCP PDU，并通过将终端的状态设定为联合发送来开始CoMP联合发送。 调整服务CoMP-MA的PDCP缓冲器的高和低阈值。 由于空中接口调度所需的信息变得可用，所以该方法包括在服务的CoMP-MA中提取无线资源分配，RLC和MAC头，对协议实体的用户平面数据和预编码矩阵的引用，并将其转发给发送 已经确认PDCP PDU的eNB，以便发送CoMP-MA为终端准备空中接口。