公开(公告)号：US09210636B2

公开(公告)日：2015-12-08

申请号：US14456134

申请日：2014-08-11

Applicant: MEDIATEK INC.

Inventor： Yih-Shen Chen ,  Chao-Chin Chou ,  Chia-Chun Hsu

IPC: H04W36/26 ,  H04W36/00 ,  H04W48/08 ,  H04W48/02 ,  H04W76/02

CPC classification number: H04W36/26 ,  H04W36/0066 ,  H04W48/02 ,  H04W48/08 ,  H04W76/11 ,  H04W76/19

Abstract: A method of providing Local IP Access (LIPA) indication is proposed. In one novel aspect, an enhanced cell selection method is proposed using LIPA capability information. Based on LIPA capability related information, a UE is able to prioritize LIPA-capable cells and establish a corresponding packet data network (PDN) connection accordingly. In one embodiment, LIPA information is informed to the UE via Non Access Stratum (NAS) signaling. The UE stores LIPA capability information when receiving a NAS message from a mobility management entity (MME). Later on, when the UE performs cell selection or reselection in idle mode, the UE can use the stored LIPA capability information to prioritize LIPA-capable cells.

Abstract translation: 提出了一种提供本地IP访问（LIPA）指示的方法。 在一个新颖的方面，提出了使用LIPA能力信息的增强小区选择方法。 基于LIPA能力相关信息，UE能够优先考虑具有LIPA能力的小区并相应地建立对应的分组数据网络（PDN）连接。 在一个实施例中，通过非接入层（NAS）信令向UE通知LIPA信息。 当从移动性管理实体（MME）接收到NAS消息时，UE存储LIPA能力信息。 稍后，当UE在空闲模式下执行小区选择或重选时，UE可以使用存储的LIPA能力信息来优先考虑具有LIPA能力的小区。

公开(公告)号：US08942099B2

公开(公告)日：2015-01-27

申请号：US13622559

申请日：2012-09-19

Applicant: Mediatek, Inc. ,  National Taiwan University

Inventor： Shu-Hao Yeh ,  Kuo-Wei Lin ,  Po-Han Chiang ,  Wan-Jiun Liao ,  Chao-Chin Chou

IPC: H04L12/26 ,  H04W36/00 ,  H04W76/04 ,  H04W28/02 ,  H04W88/16

CPC classification number: H04W36/0038 ,  H04W28/0263 ,  H04W36/0027 ,  H04W76/22 ,  H04W88/16

Abstract: A method to realize IP flow mobility (IFOM) between 3GPP access and non-3GPP access over GTP based interfaces is proposed. A user equipment is connected to a PDN-GW via a 3GPP access network and a non-3GPP access network. The UE transmits an IFOM triggering message to the PDN-GW, which selects IP flows to be moved based on EPS bearer ID and IP flow description. The PDN-GW sends an Update Bearer Request to a WAG or ePDG, and updates its mapping table if the Update Bearer Request is successful. The UE also updates its mapping table upon receiving an IFOM acknowledgement from the WAG or ePDG. The PDN-GW initiates a 3GPP bearer modification procedure to move the selected IP flows.

Abstract translation: 提出了一种通过基于GTP的接口实现3GPP接入与非3GPP接入之间的IP流量移动性（IFOM）的方法。 用户设备经由3GPP接入网和非3GPP接入网连接到PDN-GW。 UE向PDN-GW发送IFOM触发消息，该PDN-GW基于EPS承载ID和IP流描述来选择要移动的IP流。 PDN-GW向WAG或ePDG发送更新承载请求，如果更新承载请求成功，则更新其映射表。 当从WAG或ePDG接收到IFOM确认时，UE也更新其映射表。 PDN-GW启动3GPP承载修改过程以移动所选择的IP流。

公开(公告)号：US20140146789A1

公开(公告)日：2014-05-29

申请号：US14168320

申请日：2014-01-30

Applicant: MEDIATEK, INC.

Inventor： Chao-Chin Chou ,  I-Kang Fu ,  Yih-Shen Chen

IPC: H04W36/12

CPC classification number: H04W36/12 ,  H04L5/0007 ,  H04L27/0006 ,  H04L27/2618 ,  H04L27/2655 ,  H04W36/0027 ,  H04W36/0072 ,  H04W36/0088 ,  H04W36/08 ,  H04W36/18 ,  H04W48/16

Abstract: A comprehensive solution is provided for multi-carrier scanning and handover operations in OFDM wireless systems. A multi-carrier scanning is any scanning operation that involves multi-carrier radio frequency carriers. In one embodiment, a mobile station communicates with a serving base station over a primary carrier, and performs scanning over one or more determined carriers. A multi-carrier handover is any handover operation that involves multiple radio frequency carriers. In a first embodiment, a break-before-entry (BBE) handover procedure with fast synchronization is provided. In a second embodiment, an entry-before-break (EBB) handover procedure through unavailable intervals is provided. In a third embodiment, EBB handover procedures for both inter-FA and intra-FA using multiple carriers are provided. Finally, in a fourth embodiment, intra-BS handover procedures are provided. The multi-carrier handover procedures may be applied to 2-to-2 or N-to-N carriers handover situation. The overall scanning time and handover interruption time may be reduced through the provided procedures.

Abstract translation: 为OFDM无线系统中的多载波扫描和切换操作提供了全面的解决方案。 多载波扫描是涉及多载波射频载波的任何扫描操作。 在一个实施例中，移动台通过主载波与服务基站进行通信，并对一个或多个确定的载波执行扫描。 多载波切换是涉及多个射频载波的任何切换操作。 在第一实施例中，提供了具有快速同步的中断前进（BBE）切换过程。 在第二实施例中，提供了通过不可用间隔的切入前（EBB）切换过程。 在第三实施例中，提供了使用多个载波的FA间和FA内的EBB切换程序。 最后，在第四实施例中，提供了BS内的切换过程。 多载波切换过程可以应用于2对2或N到N个载波切换情况。 通过提供的程序可以减少整个扫描时间和切换中断时间。

公开(公告)号：US10362521B2

公开(公告)日：2019-07-23

申请号：US16019537

申请日：2018-06-27

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  Chao-Chin Chou

IPC: H04W36/28 ,  H04W36/22 ,  H04W48/10 ,  H04W12/06 ,  H04W48/08 ,  H04W48/16 ,  H04W88/06 ,  H04W52/02 ,  H04W84/12 ,  H04W12/04

Abstract: A method of multi-radio interworking to provide integrated cellular and WLAN access for a multi-radio device is provided. A serving base station in a cellular network first obtains wireless local area network (WLAN) information and then forward the WLAN information to a serving device such that the serving device is capable to connect with both the cellular network and a WLAN. The WLAN information may comprise scanning information, WLAN QoS information, WLAN layer-3 information, or additional WLAN access point information. The WLAN information is forwarded based on triggering events associated with the serving base station information, WLAN coverage information, or the serving device information. Based on the received WLAN information, when entering WLAN coverage, the serving device activates its WLAN access to forward traffic from the cellular access network to the WLAN access network. When leaving WLAN coverage, the serving device deactivates its WLAN access to save power consumption.

公开(公告)号：US10039042B2

公开(公告)日：2018-07-31

申请号：US15082144

申请日：2016-03-28

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  Chao-Chin Chou

IPC: H04W36/22 ,  H04W28/08 ,  H04W48/10 ,  H04W12/06 ,  H04W48/08 ,  H04W48/16 ,  H04W88/06 ,  H04W52/02 ,  H04W84/12 ,  H04W12/04

CPC classification number: H04W36/22 ,  H04W12/04 ,  H04W12/06 ,  H04W12/0602 ,  H04W48/08 ,  H04W48/10 ,  H04W48/16 ,  H04W52/0274 ,  H04W84/12 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164

Abstract: A method of multi-radio interworking to provide integrated cellular and WLAN access for a multi-radio device is provided. A serving base station in a cellular network first obtains wireless local area network (WLAN) information and then forward the WLAN information to a serving device such that the serving device is capable to connect with both the cellular network and a WLAN. The WLAN information may comprise scanning information, WLAN QoS information, WLAN layer-3 information, or additional WLAN access point information. The WLAN information is forwarded based on triggering events associated with the serving base station information, WLAN coverage information, or the serving device information. Based on the received WLAN information, when entering WLAN coverage, the serving device activates its WLAN access to forward traffic from the cellular access network to the WLAN access network. When leaving WLAN coverage, the serving device deactivates its WLAN access to save power consumption.

公开(公告)号：US20180310216A1

公开(公告)日：2018-10-25

申请号：US16019537

申请日：2018-06-27

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  Chao-Chin Chou

IPC: H04W36/22 ,  H04W48/08 ,  H04W48/10 ,  H04W12/06 ,  H04W48/16 ,  H04W12/04 ,  H04W52/02 ,  H04W88/06 ,  H04W84/12

CPC classification number: H04W36/22 ,  H04W12/04 ,  H04W12/06 ,  H04W12/0602 ,  H04W48/08 ,  H04W48/10 ,  H04W48/16 ,  H04W52/0274 ,  H04W84/12 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164

Abstract: A method of multi-radio interworking to provide integrated cellular and WLAN access for a multi-radio device is provided. A serving base station in a cellular network first obtains wireless local area network (WLAN) information and then forward the WLAN information to a serving device such that the serving device is capable to connect with both the cellular network and a WLAN. The WLAN information may comprise scanning information, WLAN QoS information, WLAN layer-3 information, or additional WLAN access point information. The WLAN information is forwarded based on triggering events associated with the serving base station information, WLAN coverage information, or the serving device information. Based on the received WLAN information, when entering WLAN coverage, the serving device activates its WLAN access to forward traffic from the cellular access network to the WLAN access network. When leaving WLAN coverage, the serving device deactivates its WLAN access to save power consumption.

公开(公告)号：US20160212672A1

公开(公告)日：2016-07-21

申请号：US15082144

申请日：2016-03-28

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  Chao-Chin Chou

IPC: H04W36/22 ,  H04W12/06 ,  H04W12/04 ,  H04W48/08

CPC classification number: H04W36/22 ,  H04W12/04 ,  H04W12/06 ,  H04W48/08 ,  H04W48/10 ,  H04W48/16 ,  H04W52/0274 ,  H04W84/12 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164

Abstract: A method of multi-radio interworking to provide integrated cellular and WLAN access for a multi-radio device is provided. A serving base station in a cellular network first obtains wireless local area network (WLAN) information and then forward the WLAN information to a serving device such that the serving device is capable to connect with both the cellular network and a WLAN. The WLAN information may comprise scanning information, WLAN QoS information, WLAN layer-3 information, or additional WLAN access point information. The WLAN information is forwarded based on triggering events associated with the serving base station information, WLAN coverage information, or the serving device information. Based on the received WLAN information, when entering WLAN coverage, the serving device activates its WLAN access to forward traffic from the cellular access network to the WLAN access network. When leaving WLAN coverage, the serving device deactivates its WLAN access to save power consumption.

Abstract translation: 提供了一种用于为多无线电设备提供集成的蜂窝和WLAN接入的多无线电互联的方法。 蜂窝网络中的服务基站首先获得无线局域网（WLAN）信息，然后将WLAN信息转发到服务设备，使得服务设备能够与蜂窝网络和WLAN两者连接。 WLAN信息可以包括扫描信息，WLAN QoS信息，WLAN层3信息或附加的WLAN接入点信息。 基于与服务基站信息，WLAN覆盖信息或服务设备信息相关联的触发事件来转发WLAN信息。 基于接收到的WLAN信息，当进入WLAN覆盖时，服务设备激活其WLAN接入，将来自蜂窝接入网络的业务转发到WLAN接入网络。 当离开WLAN覆盖时，服务设备停用其WLAN接入以节省功耗。

公开(公告)号：US20140348132A1

公开(公告)日：2014-11-27

申请号：US14456134

申请日：2014-08-11

Applicant: MEDIATEK INC.

Inventor： Yih-Shen Chen ,  Chao-Chin Chou ,  Chia-Chun Hsu

IPC: H04W36/26 ,  H04W76/02

CPC classification number: H04W36/26 ,  H04W36/0066 ,  H04W48/02 ,  H04W48/08 ,  H04W76/11 ,  H04W76/19

Abstract: A method of providing Local IP Access (LIPA) indication is proposed. In one novel aspect, an enhanced cell selection method is proposed using LIPA capability information. Based on LIPA capability related information, a UE is able to prioritize LIPA-capable cells and establish a corresponding packet data network (PDN) connection accordingly. In one embodiment, LIPA information is informed to the UE via Non Access Stratum (NAS) signaling. The UE stores LIPA capability information when receiving a NAS message from a mobility management entity (MME). Later on, when the UE performs cell selection or reselection in idle mode, the UE can use the stored LIPA capability information to prioritize LIPA-capable cells.

Abstract translation: 提出了一种提供本地IP访问（LIPA）指示的方法。 在一个新颖的方面，提出了使用LIPA能力信息的增强小区选择方法。 基于LIPA能力相关信息，UE能够优先考虑具有LIPA能力的小区并相应地建立对应的分组数据网络（PDN）连接。 在一个实施例中，通过非接入层（NAS）信令向UE通知LIPA信息。 当从移动性管理实体（MME）接收到NAS消息时，UE存储LIPA能力信息。 稍后，当UE在空闲模式下执行小区选择或重选时，UE可以使用存储的LIPA能力信息来优先考虑具有LIPA能力的小区。

公开(公告)号：US20130070596A1

公开(公告)日：2013-03-21

申请号：US13622559

申请日：2012-09-19

Applicant: MEDIATEK, INC. ,  NATIONAL TAIWAN UNIVERSITY

Inventor： Shu-Hao Yeh ,  Kuo-Wei Lin ,  Po-Han Chiang ,  Wan-Jiun Liao ,  Chao-Chin Chou

IPC: H04W28/10

CPC classification number: H04W36/0038 ,  H04W28/0263 ,  H04W36/0027 ,  H04W76/22 ,  H04W88/16

Abstract: A method to realize IP flow mobility (IFOM) between 3GPP access and non-3GPP access over GTP based interfaces is proposed. A user equipment is connected to a PDN-GW via a 3GPP access network and a non-3GPP access network. The UE transmits an IFOM triggering message to the PDN-GW, which selects IP flows to be moved based on EPS bearer ID and IP flow description. The PDN-GW sends an Update Bearer Request to a WAG or ePDG, and updates its mapping table if the Update Bearer Request is successful. The UE also updates its mapping table upon receiving an IFOM acknowledgement from the WAG or ePDG. The PDN-GW initiates a 3GPP bearer modification procedure to move the selected IP flows.

Abstract translation: 提出了一种通过基于GTP的接口实现3GPP接入与非3GPP接入之间的IP流量移动性（IFOM）的方法。 用户设备经由3GPP接入网和非3GPP接入网连接到PDN-GW。 UE向PDN-GW发送IFOM触发消息，该PDN-GW基于EPS承载ID和IP流描述来选择要移动的IP流。 PDN-GW向WAG或ePDG发送更新承载请求，如果更新承载请求成功，则更新其映射表。 当从WAG或ePDG接收到IFOM确认时，UE也更新其映射表。 PDN-GW启动3GPP承载修改过程以移动所选择的IP流。