公开(公告)号：US10334585B2

公开(公告)日：2019-06-25

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 ,  H04B7/024 ,  H04B7/06 ,  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.

公开(公告)号：US20150296418A1

公开(公告)日：2015-10-15

申请号：US14686967

申请日：2015-04-15

Applicant: Nokia Solutions and Networks Oy

Inventor： Peter Szilagyi ,  Zoltan Vincze ,  Csaba Vulkan

IPC: H04W36/00 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04W36/0016 ,  H04L67/2847 ,  H04L69/161

Abstract: Systems and techniques for transport control protocol proxy mangement during handover of a user device from one base station to another. One or embodiments of the invention provide mechanisms to create a transport control protocol (TCP) proxy during establishment of a new data bearer establishment at an eNodeB, wherein the TCP proxy is integrated with a packet data convergence protocol (PDCP) buffer of the new bearer. The TCP proxy is configured so as to manage delivery of pre-fetched data to a user device so as to prevent TCP connection collapse during handover of the user device from a source eNodeB to a target eNodeB.

Abstract translation: 用户设备从一个基站切换到另一个基站时的传输控制协议代理管理的系统和技术。 本发明的一个或多个实施例提供了在eNodeB建立新的数据承载建立期间创建传输控制协议（TCP）代理的机制，其中TCP代理与新载体的分组数据融合协议（PDCP）缓冲器集成 。 TCP代理被配置为管理预取数据到用户设备的传送，以便防止在用户设备从源eNodeB到目标eNodeB的切换期间的TCP连接崩溃。