公开(公告)号：US09888421B2

公开(公告)日：2018-02-06

申请号：US14854369

申请日：2015-09-15

Applicant: MEDIATEK INC.

Inventor： Shang-Ru Mo ,  Chien-Chun Huang-Fu ,  Yuan-Chieh Lin ,  Yung Hsiang Hsieh ,  Yung-Fu Chen

IPC: H04W36/00 ,  H04W36/24 ,  H04W36/14 ,  H04W76/04 ,  H04W48/20

CPC classification number: H04W36/24 ,  H04W36/14 ,  H04W48/20 ,  H04W76/22

Abstract: Methods and apparatus are provided for enhanced bearer continuity for the 3GPP network. In one novel aspect, the UE detects missing parameters for the inter-RAT bearer change in an idle state. The UE performs bearer preservation procedures to maintain the bearer continuity. In one embodiment, predefined/preconfigured parameter settings are used. In one embodiment, a mapping rule is used to map the missing parameter to a predefined value based on one or more known parameters. In another embodiment, the missing parameters are obtained from the network. In another embodiment, signaling procedures used to obtain the missing parameters. The signaling procedures include a service request, a UE-initiated bearer modification procedure. In one embodiment, the cell reselection is suspended such that the signaling procedure is performed to obtain the missing parameters before the cell reselection. In another embodiment, a RAU procedure is used upon detecting the missing of parameters.

公开(公告)号：US20160080978A1

公开(公告)日：2016-03-17

申请号：US14854369

申请日：2015-09-15

Applicant: MEDIATEK INC.

Inventor： Shang-Ru Mo ,  Chien-Chun Huang-Fu ,  Yuan-Chieh Lin ,  Yung Hsiang Hsieh ,  Yung-Fu Chen

IPC: H04W36/00 ,  H04W36/04

CPC classification number: H04W36/24 ,  H04W36/14 ,  H04W48/20 ,  H04W76/22

Abstract: Methods and apparatus are provided for enhanced bearer continuity for the 3GPP network. In one novel aspect, the UE detects missing parameters for the inter-RAT bearer change in an idle state. The UE performs bearer preservation procedures to maintain the bearer continuity. In one embodiment, predefined/preconfigured parameter settings are used. In one embodiment, a mapping rule is used to map the missing parameter to a predefined value based on one or more known parameters. In another embodiment, the missing parameters are obtained from the network. In another embodiment, signaling procedures used to obtain the missing parameters. The signaling procedures include a service request, a UE-initiated bearer modification procedure. In one embodiment, the cell reselection is suspended such that the signaling procedure is performed to obtain the missing parameters before the cell reselection. In another embodiment, a RAU procedure is used upon detecting the missing of parameters.

Abstract translation: 提供了用于3GPP网络的增强的承载连续性的方法和装置。 在一个新颖的方面，UE在空闲状态下检测用于RAT间承载变化的缺失参数。 UE执行承载保留过程以维护承载连续性。 在一个实施例中，使用预定义/预配置的参数设置。 在一个实施例中，映射规则用于基于一个或多个已知参数将缺失参数映射到预定义的值。 在另一个实施例中，从网络获得缺失的参数。 在另一个实施例中，用于获得缺失参数的信令程序。 信令过程包括服务请求，UE发起的承载修改过程。 在一个实施例中，暂停小区重选，使得执行信令过程以在小区重选之前获得缺失的参数。 在另一个实施例中，在检测到参数丢失时使用RAU过程。

公开(公告)号：US10257760B2

公开(公告)日：2019-04-09

申请号：US14854413

申请日：2015-09-15

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Shang-Ru Mo ,  Yuan-Chieh Lin ,  Yung Hsiang Hsieh ,  Yung-Fu Chen

IPC: H04W36/24 ,  H04W76/22 ,  H04W36/14 ,  H04W48/20

Abstract: Methods and apparatus are provided for inter-RAT bearer change for the 3GPP network. In one novel aspect, a bearer termination procedure is performed upon detecting one or more triggering events for the inter-RAT bearer modification. In one embodiment, the UE established the 4G EPS bearer. The UE successfully performs a bearer change from 4G to 3G. Subsequently, the UE detects missing mandatory parameters during inter-RAT bearer change from 3G to 2G in an idle state. The UE performs bearer termination by releasing the PDP context. In one embodiment, the PDP context is locally released. In other embodiments, the UE explicitly releases bearer using the PDP context deactivation procedure. The locally released procedure can be triggered by the UE, or by the network, or by both the UE and the network. The explicitly PDP context release procedure can be triggered by the UE, or by the network, or by both the UE and the network.

公开(公告)号：US20160080992A1

公开(公告)日：2016-03-17

申请号：US14854413

申请日：2015-09-15

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Shang-Ru Mo ,  Yuan-Chieh Lin ,  Yung Hsiang Hsieh ,  Yung-Fu Chen

IPC: H04W36/00 ,  H04W36/24 ,  H04W36/14

CPC classification number: H04W36/24 ,  H04W36/14 ,  H04W48/20 ,  H04W76/22

Abstract: Methods and apparatus are provided for inter-RAT bearer change for the 3GPP network. In one novel aspect, a bearer termination procedure is performed upon detecting one or more triggering events for the inter-RAT bearer modification. In one embodiment, the UE established the 4G EPS bearer. The UE successfully performs a bearer change from 4G to 3G. Subsequently, the UE detects missing mandatory parameters during inter-RAT bearer change from 3G to 2G in an idle state. The UE performs bearer termination by releasing the PDP context. In one embodiment, the PDP context is locally released. In other embodiments, the UE explicitly releases bearer using the PDP context deactivation procedure. The locally released procedure can be triggered by the UE, or by the network, or by both the UE and the network. The explicitly PDP context release procedure can be triggered by the UE, or by the network, or by both the UE and the network.

Abstract translation: 提供了用于3GPP网络的RAT间承载变化的方法和装置。 在一个新颖的方面，在检测用于RAT间承载修改的一个或多个触发事件时，执行承载终止过程。 在一个实施例中，UE建立了4G EPS承载。 UE成功地执行从4G到3G的承载变化。 随后，UE在空闲状态期间从3G到2G的RAT间承载变化期间检测到缺失的强制参数。 UE通过释放PDP上下文来执行承载终止。 在一个实施例中，PDP上下文被本地释放。 在其他实施例中，UE使用PDP上下文去激活过程明确地释放承载。 本地发布的过程可以由UE触发，也可以由网络触发，或由UE和网络触发。 明确的PDP上下文释放过程可以由UE或网络或UE和网络两者触发。