公开(公告)号：US20150245407A1

公开(公告)日：2015-08-27

申请号：US14706967

申请日：2015-05-08

Applicant: MEDIATEK INC.

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

IPC: H04W76/02 ,  H04W48/00

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 RLF process is applied to reduce the outage time in the serving cell. In a second novel aspect, an enhanced cell selection mechanism based on cell prioritization information is applied to reduce the outage time in the target cell. In one embodiment, multi-RAT registration is used to steer cell selection.

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。 在第一新颖方面，应用快速RLF处理来减少服务小区中的停机时间。 在第二个新颖的方面，应用基于小区优先级信息的增强小区选择机制来减少目标小区中断时间。 在一个实施例中，多RAT注册用于引导小区选择。

公开(公告)号：US09049698B2

公开(公告)日：2015-06-02

申请号：US13743612

申请日：2013-01-17

Applicant: Mediatek, Inc.

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

IPC: H04W36/24 ,  H04W76/02 ,  H04W36/08 ,  H04W36/00

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 RLF process is applied to reduce the outage time in the serving cell. In a second novel aspect, an enhanced cell selection mechanism based on cell prioritization information is applied to reduce the outage time in the target cell. In one embodiment, multi-RAT registration is used to steer cell selection.

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。 在第一新颖方面，应用快速RLF处理来减少服务小区中的停机时间。 在第二个新颖的方面，应用基于小区优先级信息的增强小区选择机制来减少目标小区中断时间。 在一个实施例中，多RAT注册用于引导小区选择。

公开(公告)号：US20140235175A1

公开(公告)日：2014-08-21

申请号：US14263166

申请日：2014-04-28

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  William Plumb

IPC: H04B15/00

CPC classification number: H04B15/00 ,  H04B1/1027 ,  H04B1/406 ,  H04B1/48 ,  H04B1/525 ,  H04B2001/485 ,  H04W4/80 ,  H04W52/244 ,  H04W72/0473 ,  H04W76/28 ,  H04W88/06

Abstract: A method to trigger in-device coexistence (IDC) interference mitigation is provided. A wireless device comprises a first radio module and a co-located second radio module. The first radio module measures a received radio signal based on a plurality of sampling instances. A control entity obtains Tx/Rx activity of the second radio module and informs Tx/Rx timing information to the first radio module. The first radio module determines a measurement result based on the obtained timing information. The first radio module triggers an IDC interference mitigation mechanism if the measurement result satisfies a configurable condition. In one embodiment, the first radio module reports IDC interference information and traffic pattern information of the second radio module to a base station for network-assisted coexistence interference mitigation. The IDC triggering mechanism prevents unnecessary and arbitrary IDC request from the device and thus improves network efficiency.

Abstract translation: 提供了一种触发设备间共存（IDC）干扰减轻的方法。 无线设备包括第一无线电模块和共同定位的第二无线电模块。 第一无线电模块基于多个采样实例测量接收到的无线电信号。 控制实体获得第二无线电模块的Tx / Rx活动，并向第一无线电模块通知Tx / Rx定时信息。 第一无线电模块基于获得的定时信息来确定测量结果。 如果测量结果满足可配置条件，则第一个无线电模块触发IDC干扰减轻机制。 在一个实施例中，第一无线电模块向基站报告第二无线电模块的IDC干扰信息和业务模式信息以用于网络协同共存干扰减轻。 IDC触发机制防止来自设备的不必要和任意的IDC请求，从而提高网络效率。

公开(公告)号：US20180241257A1

公开(公告)日：2018-08-23

申请号：US15957704

申请日：2018-04-19

Applicant: MediaTek Inc.

Inventor： Vladimir A. Muratov ,  William Plumb

IPC: H02J50/60 ,  H02J7/02 ,  H02J50/12

CPC classification number: H02J50/60 ,  H02J7/025 ,  H02J50/12

Abstract: Methods, apparatus and computer-readable storage media for performing foreign object detection (FOD) in a wireless power transfer system. A plurality of FOD measurements may be performed and processed to perform FOD.

公开(公告)号：US09807659B2

公开(公告)日：2017-10-31

申请号：US14753840

申请日：2015-06-29

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  Yih-Shen Chen ,  William Plumb ,  Per Johan Mikael Johansson

IPC: H04Q7/10 ,  H04W36/20 ,  H04W24/10 ,  H04W88/06

CPC classification number: H04W36/20 ,  H04W24/10 ,  H04W88/06

Abstract: A method of implicit signaling to support In-Device coexistence interference avoidance is provided. A UE sends an IDC interference indication to an eNB. The indication indicates that a serving frequency becomes unusable due to a coexistence interference problem. The indication does not explicitly indicate a frequency index or a frequency location of the unusable serving frequency. The eNB determines the serving frequency as unusable in an implicit manner. The eNB also determines an implied unusable frequency region based on the received IDC indication. The implied unusable frequency region is between the serving frequency and the ISM band. In one advantageous aspect, the eNB configures a condition for the UE, such that the UE is refrained from sending IDC interference indications unless the condition is satisfied.

公开(公告)号：US09661678B2

公开(公告)日：2017-05-23

申请号：US14706967

申请日：2015-05-08

Applicant: MEDIATEK INC.

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

IPC: H04W76/02 ,  H04W36/08 ,  H04W36/24 ,  H04W48/00 ,  H04W40/36 ,  H04W36/00

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 RLF process is applied to reduce the outage time in the serving cell. In a second novel aspect, an enhanced cell selection mechanism based on cell prioritization information is applied to reduce the outage time in the target cell. In one embodiment, multi-RAT registration is used to steer cell selection.

公开(公告)号：US09467236B2

公开(公告)日：2016-10-11

申请号：US14967565

申请日：2015-12-14

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  William Plumb

IPC: H04M1/00 ,  H04B15/00 ,  H04B1/10 ,  H04B1/403 ,  H04B1/525 ,  H04W52/24 ,  H04B1/48 ,  H04W4/00 ,  H04W72/04 ,  H04W76/04 ,  H04W88/06

CPC classification number: H04B15/00 ,  H04B1/1027 ,  H04B1/406 ,  H04B1/48 ,  H04B1/525 ,  H04B2001/485 ,  H04W4/80 ,  H04W52/244 ,  H04W72/0473 ,  H04W76/28 ,  H04W88/06

Abstract: A coexistence interference mitigation method is provided. In a wireless network, a wireless device is equipped with multiple radios in the same device platform. The wireless device also has a control entity that communicates with the multiple co-located radio modules. A first radio module receives a notification from the control entity. The notification informs a critical signaling status of a second radio module co-located with the first radio module. Upon receiving the notification, the first radio module stops uplink transmission due to coexistence interference and transmits a coexistence indicator to its serving eNB. After a certain period, the first radio module receives a second notification that informs a completion status of the critical signaling of the second radio module. Upon receiving the second notification, the first radio module resumes uplink transmission and transmits a coexistence resume indicator to the eNB.

Abstract translation: 提供了共存干扰减轻方法。 在无线网络中，无线设备在同一设备平台中配备有多个无线电设备。 无线设备还具有与多个同位置无线电模块进行通信的控制实体。 第一无线电模块从控制实体接收通知。 该通知通知与第一无线电模块共处的第二无线电模块的关键信令状态。 一旦接收到该通知，第一无线电模块由于共存干扰而停止上行链路传输，并向其服务eNB发送共存指示符。 在一定时间段之后，第一无线电模块接收通知第二无线电模块的关键信令的完成状态的第二通知。 在接收到第二通知时，第一无线电模块恢复上行链路传输，并向eNB发送共存恢复指示符。

公开(公告)号：US20160099744A1

公开(公告)日：2016-04-07

申请号：US14967565

申请日：2015-12-14

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  William Plumb

IPC: H04B1/48 ,  H04W88/06 ,  H04W4/00 ,  H04W72/04 ,  H04W76/04

CPC classification number: H04B15/00 ,  H04B1/1027 ,  H04B1/406 ,  H04B1/48 ,  H04B1/525 ,  H04B2001/485 ,  H04W4/80 ,  H04W52/244 ,  H04W72/0473 ,  H04W76/28 ,  H04W88/06

Abstract: A coexistence interference mitigation method is provided. In a wireless network, a wireless device is equipped with multiple radios in the same device platform. The wireless device also has a control entity that communicates with the multiple co-located radio modules. A first radio module receives a notification from the control entity. The notification informs a critical signaling status of a second radio module co-located with the first radio module. Upon receiving the notification, the first radio module stops uplink transmission due to coexistence interference and transmits a coexistence indicator to its serving eNB. After a certain period, the first radio module receives a second notification that informs a completion status of the critical signaling of the second radio module. Upon receiving the second notification, the first radio module resumes uplink transmission and transmits a coexistence resume indicator to the eNB.

Abstract translation: 提供了共存干扰减轻方法。 在无线网络中，无线设备在同一设备平台中配备有多个无线电设备。 无线设备还具有与多个同位置无线电模块进行通信的控制实体。 第一无线电模块从控制实体接收通知。 该通知通知与第一无线电模块共处的第二无线电模块的关键信令状态。 一旦接收到该通知，第一无线电模块由于共存干扰而停止上行链路传输，并向其服务eNB发送共存指示符。 在一定时间段之后，第一无线电模块接收通知第二无线电模块的关键信令的完成状态的第二通知。 在接收到第二通知时，第一无线电模块恢复上行链路传输，并向eNB发送共存恢复指示符。

公开(公告)号：US20150245406A1

公开(公告)日：2015-08-27

申请号：US14709480

申请日：2015-05-12

Applicant: MEDIATEK INC.

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

IPC: H04W76/02 ,  H04W40/36 ,  H04W36/00

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.

公开(公告)号：US20150009850A1

公开(公告)日：2015-01-08

申请号：US14474224

申请日：2014-09-01

Applicant: MEDIATEK INC.

Inventor： Yih-Shen Chen ,  Chia-Chun Hsu ,  William Plumb ,  Michael Roberts

IPC: H04W36/30 ,  H04W24/08 ,  H04W60/04 ,  H04W76/02 ,  H04W72/08

CPC classification number: H04W36/30 ,  H04W24/00 ,  H04W24/08 ,  H04W24/10 ,  H04W28/04 ,  H04W28/18 ,  H04W36/0016 ,  H04W36/08 ,  H04W48/20 ,  H04W60/04 ,  H04W72/082 ,  H04W76/19 ,  H04W84/18 ,  H04W88/06

Abstract: Various methods for wireless communication in a device with co-existed/co-located radios are provided. Multiple communication radio transceivers are coexisted/co-located in a user equipment (UE) having in-device coexistence (IDC) capability, which may result in IDC interference. For example, the UE is equipped with both LTE radio and some ISM band applications such as WiFi and Bluetooth modules. In a first method, the network identifies IDC capability by UE identification (e.g., UE ID). In a second method, the UE intentionally performs cell selection or reselection to cells in non-ISM frequency bands. In a third method, the UE signals the existence of ISM band applications via capability negotiation. In a fourth method, the UE signals the activation of ISM band applications by signaling messages (e.g., RRC message or MAC CE). Under the various methods, the UE and its serving eNB can apply FDM or TDM solutions to mitigate the IDC interference.

Abstract translation: 提供了具有共存/同位置无线电装置的无线通信的各种方法。 多个通信无线电收发机共存/共同位于具有设备内共存（IDC）能力的用户设备（UE）中，这可能导致IDC干扰。 例如，UE配备有LTE无线电和一些ISM频带应用，例如WiFi和蓝牙模块。 在第一种方法中，网络通过UE识别识别IDC能力（例如，UE ID）。 在第二种方法中，UE有意地对非ISM频带中的小区执行小区选择或重选。 在第三种方法中，UE通过能力协商来发出ISM频带应用的存在。 在第四种方法中，UE通过信令消息（例如，RRC消息或MAC CE）来通知ISM频带应用的激活。 在各种方法下，UE及其服务eNB可以应用FDM或TDM解决方案来减轻IDC干扰。