公开(公告)号：US20130182563A1

公开(公告)日：2013-07-18

申请号：US13743644

申请日：2013-01-17

Applicant: MEDIATEK, INC.

Inventor： Per Johan Mikael Johansson ,  Yih-Shen Chen ,  Tze-Ping Low ,  William Plumb

IPC: H04W76/02 ,  H04W36/08

CPC classification number: H04W76/19 ,  H04W36/0033 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/0072 ,  H04W36/08 ,  H04W36/24 ,  H04W40/36 ,  H04W48/17 ,  H04W76/18

Abstract: An enhanced connection recovery upon lost RRC connection due to radio link failure (RLF) or handover failure (HOF) is proposed. A UE first establishes an RRC connection in a source cell in a mobile communication network. Later on, the UE detects a failure event and starts an RRC reestablishment procedure in a target cell to restore the RRC connection. In a first novel aspect, a fast NAS recovery process is applied to reduce the outage time in the target cell. In a second novel aspect, context fetching is used to reduce the outage time in the target cell. In a third novel aspect, a loss-less reestablishment procedure is proposed to reduce data loss during the connection recovery.

Abstract translation: 提出了由于无线链路故障（RLF）或切换失败（HOF）引起的丢失的RRC连接的增强的连接恢复。 UE首先在移动通信网络中的源小区中建立RRC连接。 之后，UE检测故障事件，并在目标小区中开始RRC重建过程，以恢复RRC连接。 在第一个新颖的方面，应用快速的NAS恢复过程来减少目标小区中的停电时间。 在第二个新颖的方面，使用上下文获取来减少目标小区中的停机时间。 在第三个新颖的方面，提出了一种无损重建过程，以减少连接恢复期间的数据丢失。

公开(公告)号：US20130084869A1

公开(公告)日：2013-04-04

申请号：US13644077

申请日：2012-10-03

Applicant: MEDIATEK, INC.

Inventor： Per Johan Mikael Johansson ,  Chia-Chun Hsu

IPC: H04W4/02 ,  H04W36/00

CPC classification number: H04W76/04 ,  H04W36/32 ,  H04W76/20 ,  Y02D70/126

Abstract: A method of user equipment (UE) providing speed information to network is provided. The method supports obtaining speed information of the UE, detecting a trigger event and providing the speed information to the network by one or more predefined means. The speed information is taken from the group consisting of a physical speed, a physical speed mapped on a pre-defined speed group, and a virtual speed. The virtual speed comprises a cell change count or a number cells that the UE has requested RRC connection during a certain period. The UE can send the speed information to an eNB via RRC connection establishment, RRC connection re-establishment, a new IE in RRC measure report or a new RRC message.

Abstract translation: 提供了向网络提供速度信息的用户设备（UE）的方法。 该方法支持获取UE的速度信息，检测触发事件，并通过一个或多个预定义的方式向网络提供速度信息。 速度信息取自由物理速度，映射在预定义速度组上的物理速度和虚拟速度组成的组。 虚拟速度包括小区改变计数或UE在特定时段期间请求RRC连接的小区数。 UE可以经由RRC连接建立，RRC连接重建，RRC测量报告中的新IE或新的RRC消息，向eNB发送速度信息。