公开(公告)号：US12219650B2

公开(公告)日：2025-02-04

申请号：US18362546

申请日：2023-07-31

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chun-Fan Tsai ,  I-Kang Fu ,  Chin-Chia Chang

IPC: H04W76/30 ,  H04W36/00 ,  H04W36/14 ,  H04W76/27

Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a first service network utilizing a first RAT or a second service network utilizing a second RAT. The controller sends an indicator of a connection release request to the first service network via the wireless transceiver in response to terminating a first communication service with the first service network or in response to leaving the first service network for the second service network. Also, the controller releases a Radio Resource Control (RRC) connection with the first service network after sending the indicator of the connection release request.

公开(公告)号：US09356707B2

公开(公告)日：2016-05-31

申请号：US14263166

申请日：2014-04-28

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  William Plumb

IPC: 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 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：US20150334620A1

公开(公告)日：2015-11-19

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: H04W36/20 ,  H04W24/10

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.

Abstract translation: 提供了一种支持In-Device共存干扰避免的隐式信令的方法。 UE向eNB发送IDC干扰指示。 该指示表示由于共存干扰问题，服务频率变得不可用。 该指示没有明确地指示不可用的服务频率的频率索引或频率位置。 eNB将服务频率以隐含的方式确定为不可用。 eNB还基于接收的IDC指示确定隐含的不可用频率区域。 隐含的不可用频率区域在服务频率和ISM频带之间。 在一个有利的方面，eNB配置UE的条件，使得除非满足条件，否则UE不会发送IDC干扰指示。

公开(公告)号：US20150163762A1

公开(公告)日：2015-06-11

申请号：US14621700

申请日：2015-02-13

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu

IPC: H04W56/00 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04W56/0015 ,  H04J3/0641 ,  H04J11/0056 ,  H04J11/0069 ,  H04J11/0093 ,  H04L27/2627 ,  H04L27/2655 ,  H04W72/042

Abstract: A method of downlink synchronization for a femto base station in a cellular orthogonal frequency division multiplexing (OFDM) system is provided. The femto base station first scans one or more received reference signals transmitted from a plurality of neighboring macro base stations. The femto base station then determines a desired reference signal from the received one or more reference signals based on the scanning result. Finally, the femto base station configures its downlink radio signal transmission time based on the desired reference signal such that the femto base station is synchronized with the plurality of neighboring macro base stations.

Abstract translation: 提供了一种用于毫微微基站在蜂窝正交频分复用（OFDM）系统中的下行同步的方法。 毫微微基站首先扫描从多个相邻宏基站发送的一个或多个接收的参考信号。 毫微微基站然后基于扫描结果从所接收的一个或多个参考信号确定期望的参考信号。 最后，毫微微基站基于期望的参考信号配置其下行链路无线电信号传输时间，使得毫微微基站与多个相邻的宏基站同步。

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：US20140099896A1

公开(公告)日：2014-04-10

申请号：US14101040

申请日：2013-12-09

Applicant: MEDIATEK, INC.

Inventor： Li-Chun Ko ,  Hong-Kai Hsu ,  I-Kang Fu ,  Chi-Chen Lee

IPC: H04W72/04 ,  H04M1/725

CPC classification number: H04W72/04 ,  H04M1/7253 ,  H04W72/1215 ,  H04W88/06 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146

Abstract: A method of scheduling transmitting and receiving communication slots for co-located radio devices is provided. A Bluetooth (BT) device first synchronizes its communication time slots with a co-located radio module, and then obtains the traffic pattern of the co-located radio module. Based on the traffic pattern, the BT device selectively skips one or more TX or RX time slots to avoid data transmission or reception in certain time slots and thereby reducing interference with the co-located radio module. In addition, the BT device generates a co-located coexistence (CLC) bitmap and transmits the CLC bitmap to its peer BT device such that the peer BT device can also skip data transmission or reception in certain time slots affected by the co-located radio module. The skipped time slots are disabled for TX or RX operation to prevent interference and to achieve more energy saving.

Abstract translation: 提供了一种调度发送和接收用于同位置无线电设备的通信时隙的方法。 蓝牙（BT）设备首先将其通信时隙与同位置的无线电模块同步，然后获得同位置无线电模块的业务模式。 基于业务模式，BT设备有选择地跳过一个或多个TX或RX时隙，以避免某些时隙中的数据传输或接收，从而减少对共址无线电模块的干扰。 此外，BT设备产生共址共存（CLC）位图，并将CLC位图发送到其对等BT设备，使得对等BT设备也可以在受共同定位的无线电影响的某些时隙中跳过数据传输或接收 模块。 跳过的时隙禁用TX或RX操作，以防止干扰并实现更多的节能。

公开(公告)号：US10264449B2

公开(公告)日：2019-04-16

申请号：US15296034

申请日：2016-10-18

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  I-Kang Fu

IPC: H04W4/00 ,  H04W12/06 ,  H04W8/20 ,  H04W4/50 ,  H04W4/70 ,  H04W4/80

Abstract: Apparatus and methods are provided for sim-less subscription mechanism for mobile cellular networks. In novel aspect, the mobile device supporting the e-SIM is provisioned with the assistance the UE by obtaining subscription information from the UE. In one embodiment, UE retrieves an ID from the mobile device. The UE sends a subscription request to the e-SIM platform, wherein the subscription request includes information of the retrieved ID of the mobile device and the subscription information of the UE. In another embodiment, the mobile device retrieves subscription information from the UE. The mobile device sends a subscription request to the e-SIM platform, wherein the subscription request includes information of the subscription information retrieved from the UE and the ID of the mobile device. The mobile device receives a subscription response from the e-SIM platform and enables the mobile device through mobile device's e-SIM based on the subscription response.

公开(公告)号：US20170134109A1

公开(公告)日：2017-05-11

申请号：US15342275

申请日：2016-11-03

Applicant: MEDIATEK INC.

Inventor： Chien-Hwa Hwang ,  I-Kang Fu

IPC: H04J11/00 ,  H04L1/00 ,  H04B7/04

CPC classification number: H04J11/0033 ,  H04B7/0452 ,  H04L1/009 ,  H04L1/1874 ,  H04L1/1896 ,  H04L5/0007 ,  H04L5/0058

Abstract: A new air interface that is interference cancellation friendly is proposed. In one novel aspect, a base station uses one subband as the basic scheduling unit for each transport block if CWIC is configured, e.g., by static or semi-static signaling. By the use of proper bit selection and resource element mapping, the coded bits of a same code block are transmitted in the same subband. The transmission of a subband includes an integer multiple number of code blocks. As a result, only interfering code blocks at subbands co-scheduled with desired transport blocks are decoded and cancelled.

公开(公告)号：US09609507B2

公开(公告)日：2017-03-28

申请号：US14669205

申请日：2015-03-26

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  I-Kang Fu

IPC: H04W4/00 ,  H04M3/00 ,  H04M1/00 ,  H04W8/20

CPC classification number: H04W8/205 ,  H04W60/005

Abstract: A method of supporting enhanced SIM replacement procedure is proposed. A UE detects that a first identification module running a first application is inserted. The first identification module belongs to a PLMN, and an enhanced service is provided by an operator of the PLMN via a second application. The UE sends a notification to the operator for obtaining a second identification module. The UE detects that the second identification module running the second application is inserted. The UE sends a second notification to the operator for activating the second identification module such that the UE is able to use the enhanced service provided by the operator. The device-assisted solution for SIM replacement complies with existing security/authentication model, has no standard charge, and complies with existing SIM replacement model and offers a simpler and more automatic procedure.

公开(公告)号：US09538531B2

公开(公告)日：2017-01-03

申请号：US14567233

申请日：2014-12-11

Applicant: MediaTek Inc

Inventor： Li-Chun Ko ,  Hong-Kai Hsu ,  I-Kang Fu ,  Chi-Chen Lee

IPC: H04W72/04 ,  H04W72/12 ,  H04W76/02 ,  H04W88/06

CPC classification number: H04W72/0446 ,  H04W72/1215 ,  H04W76/14 ,  H04W88/06

Abstract: A wireless communication device is provided with a first radio module and a second radio module inside. The first radio module performs wireless transceiving according to a plurality of first traffic patterns which each indicates allocations of a plurality of first slots for a plurality of forthcoming transmitting or receiving operations, respectively. The second radio module determines an indicator indicating at least one of a plurality of second traffic patterns which each indicates allocations of a plurality of second slots for a plurality of forthcoming transmitting or receiving operations, respectively. Particularly, one or more allocations of the second slots are selectively determined according to the first traffic patterns. Also, the second radio module transmits the indicator to a peer communication device, so that the peer communication device performs transmitting or receiving operations according to the indicator.

Abstract translation: 无线通信装置具有第一无线电模块和第二无线电模块。 第一无线电模块根据多个第一业务模式执行无线收发，每个第一业务模式分别指示用于多个即将发送或接收操作的多个第一时隙的分配。 第二无线电模块确定指示多个第二业务模式中的至少一个的指示符，其分别表示多个即将发送或接收操作的多个第二时隙的分配。 特别地，根据第一业务模式选择性地确定第二时隙的一个或多个分配。 此外，第二无线电模块将指示符发送到对等通信设备，使得对等通信设备根据指示符执行​​发送或接收操作。