公开(公告)号：US20150029998A1

公开(公告)日：2015-01-29

申请号：US14238862

申请日：2012-07-10

Applicant: Nokia Solutions and Networks Oy

Inventor： Alexander Sayenko ,  Jani Matti Johannes Moilanen ,  Hans Thomas Hoehne ,  Bazar Isman ,  Ranta-aho Karri Markus ,  Jeroen Wigard

IPC: H04W36/00

Abstract: The application relates to the removal of one of the links in multi-flow HSPA but the proposed method is also applicable to normal HSDPA operation during handover. In particular the application aims at minimizing the negative impact of a removed radio link, i.e. drop of packets and/or delays. According to the proposed method, in which the radio link to be removed is via a first Node B NB1 (RL Removal Req), the NB1 ends the pending data transmission and informs the controlling RNC about the data which was not transmitted, in particular in the form of the lowest sequence number in its buffer. Subsequently, the RNC decides, based on this sequence number, which data packets need to be retransmitted on a second radio link via a second node B NB2, and instructs NB2 accordingly (Data Forwarding).

Abstract translation: 该应用涉及去除多流HSPA中的一个链路，但是所提出的方法也适用于切换期间的正常HSDPA操作。 特别地，该应用旨在最小化移除的无线电链路的负面影响，即分组丢失和/或延迟。 根据所提出的方法，其中待去除的无线电链路经由第一节点B NB1（RL去除请求），NB1结束待处理的数据传输，并通知控制RNC关于未发送的数据，特别是在 其缓冲区中最低序列号的形式。 随后，RNC根据该序列号决定经由第二节点B NB2在第二无线链路上需要重传哪些数据分组，并相应地指示NB2（数据转发）。