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    Priority rules of periodic CSI reporting in carrier aggregation
    11.
    发明授权
    Priority rules of periodic CSI reporting in carrier aggregation 有权
    载波聚合中周期性CSI报告的优先级规则

    公开(公告)号：US09247557B2

    公开(公告)日：2016-01-26

    申请号：US14450450

    申请日：2014-08-04

    Applicant: MEDIATEK INC.

    Inventor： Pei-Kai Liao ,  Chih-Yuan Lin

    IPC: H04W72/10 ,  H04L1/00 ,  H04W24/10 ,  H04B7/04 ,  H04L5/00 ,  H04B7/06 ,  H04L25/03

    CPC classification number: H04W72/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0645 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/003 ,  H04L1/0031 ,  H04L5/001 ,  H04L5/0057 ,  H04L2025/03808 ,  H04W24/10

    Abstract: A method of determining priority rules for periodic CSI reporting in carrier aggregation is proposed. A UE obtains channel state information (CSI) feedback for multiple downlink component carriers (CCs) in a multi-carrier wireless communication network. Each downlink CC is associated with a feedback mode, and each feedback mode comprises a set of feedback types to be reported to a base station at time slots configured by an upper layer. The UE then determines a prioritized downlink CC for CSI reporting based on priority levels of the feedback types to be transmitted for each downlink CC at a given time slot. The UE then transmits the corresponding CSI feedback for the prioritized downlink CC at the given time slot via a feedback channel over a primary uplink CC. In one embodiment, different feedback types are prioritized by groups, and each group has several feedback types sharing the same priority.

    Abstract translation: 提出了一种确定载波聚合中周期性CSI报告优先权规则的方法。 UE在多载波无线通信网络中获得多个下行链路分量载波（CC）的信道状态信息（CSI）反馈。 每个下行链路CC与反馈模式相关联，并且每个反馈模式包括将由上层配置的时隙向基站报告的一组反馈类型。 然后，UE基于在给定时隙处针对每个下行链路CC发送的反馈类型的优先级来确定用于CSI报告的优先级下行链路CC。 然后，UE经由主上行链路CC上的反馈信道在给定时隙上为优先化的下行链路CC发送相应的CSI反馈。 在一个实施例中，不同的反馈类型由组优先，并且每个组具有共享相同优先级的多个反馈类型。

    Sounding mechanism under carrier aggregation
    12.
    发明授权
    Sounding mechanism under carrier aggregation 有权
    载波聚合下的探测机制

    公开(公告)号：US09124395B2

    公开(公告)日：2015-09-01

    申请号：US14467046

    申请日：2014-08-25

    Applicant: MEDIATEK INC.

    Inventor： Chih-Yuan Lin ,  Yu-Hao Chang

    IPC: H04W72/04 ,  H04L5/00

    CPC classification number: H04L5/0048 ,  H04L5/001 ,  H04L5/0091 ,  H04W72/042

    Abstract: Sounding mechanism for LTE-A systems under carrier aggregation is provided. A UE receives an uplink or downlink grant transmitted from an eNB over a primary carrier in a multi-carrier LTE-A system. The UE determines indicated carrier(s) and detects a triggering condition for aperiodic sounding transmission in the grant. The UE then selects UE-specific sounding reference signal (SRS) parameters. Finally, the UE transmits an aperiodic SRS (ap-SRS) over the indicated carrier(s) using the selected UE-specific SRS parameters. In one embodiment, the uplink or downlink grant is transmitted via a PDCCH carrying various DCI formats. Each DCI format contains a carrier indicator field (CIF) that indicates which carrier is used for ap-SRS transmission if cross-carrier scheduling is enabled. In another embodiment, DCI format 3/3A is transmitted via a PDCCH carrying a plurality of information fields, each field indicates if the UE should enable ap-SRS in a particular carrier.

    Abstract translation: 提供了载波聚合下LTE-A系统的探测机制。 UE在多载波LTE-A系统中通过主载波接收从eNB发送的上行链路或下行链路许可。 UE确定指示的载波并且在授权中检测用于非周期性探测传输的触发条件。 然后，UE选择UE特定的探测参考信号（SRS）参数。 最后，UE使用所选择的UE专用SRS参数在所指示的载波上发送非周期SRS（ap-SRS）。 在一个实施例中，经由载有各种DCI格式的PDCCH发送上行链路或下行链路许可。 每个DCI格式包含载波指示符字段（CIF），其指示如果启用了跨载波调度，则将哪个载波用于ap-SRS传输。 在另一个实施例中，经由载有多个信息字段的PDCCH发送DCI格式3 / 3A，每个字段指示UE是否应该在特定载波中启用ap-SRS。

    Sounding Mechanism under Carrier Aggregation
    17.
    发明申请
    Sounding Mechanism under Carrier Aggregation 有权
    载波聚合下的探测机制

    公开(公告)号：US20140362811A1

    公开(公告)日：2014-12-11

    申请号：US14467046

    申请日：2014-08-25

    Applicant: MEDIATEK INC.

    Inventor： Chih-Yuan Lin ,  Yu-Hao Chang

    IPC: H04L5/00 ,  H04W72/04

    CPC classification number: H04L5/0048 ,  H04L5/001 ,  H04L5/0091 ,  H04W72/042

    Abstract: Sounding mechanism for LTE-A systems under carrier aggregation is provided. A UE receives an uplink or downlink grant transmitted from an eNB over a primary carrier in a multi-carrier LTE-A system. The UE determines indicated carrier(s) and detects a triggering condition for aperiodic sounding transmission in the grant. The UE then selects UE-specific sounding reference signal (SRS) parameters. Finally, the UE transmits an aperiodic SRS (ap-SRS) over the indicated carrier(s) using the selected UE-specific SRS parameters. In one embodiment, the uplink or downlink grant is transmitted via a PDCCH carrying various DCI formats. Each DCI format contains a carrier indicator field (CIF) that indicates which carrier is used for ap-SRS transmission if cross-carrier scheduling is enabled. In another embodiment, DCI format 3/3A is transmitted via a PDCCH carrying a plurality of information fields, each field indicates if the UE should enable ap-SRS in a particular carrier.

    Abstract translation: 提供了载波聚合下LTE-A系统的探测机制。 UE在多载波LTE-A系统中通过主载波接收从eNB发送的上行链路或下行链路许可。 UE确定指示的载波并且在授权中检测用于非周期性探测传输的触发条件。 然后，UE选择UE特定的探测参考信号（SRS）参数。 最后，UE使用所选择的UE专用SRS参数在所指示的载波上发送非周期SRS（ap-SRS）。 在一个实施例中，经由载有各种DCI格式的PDCCH发送上行链路或下行链路许可。 每个DCI格式包含载波指示符字段（CIF），其指示如果启用了跨载波调度，则将哪个载波用于ap-SRS传输。 在另一个实施例中，经由载有多个信息字段的PDCCH发送DCI格式3 / 3A，每个字段指示UE是否应该在特定载波中启用ap-SRS。

    Method for suppressing transmission noise comprised in received downlink signal and communications apparatus utilizing the same
    20.
    发明授权
    Method for suppressing transmission noise comprised in received downlink signal and communications apparatus utilizing the same 有权
    用于抑制接收的下行链路信号中包含的传输噪声的方法和利用其的通信装置

    公开(公告)号：US09490856B2

    公开(公告)日：2016-11-08

    申请号：US14847205

    申请日：2015-09-08

    Applicant: MediaTek Inc.

    Inventor： Chih-Yuan Lin ,  Qiang Zhou ,  Charles Chien ,  Paul Cheng Po Liang ,  Wen-Wei Yang

    IPC: H04B1/44 ,  H04B1/10 ,  H04B15/00 ,  H04B1/04 ,  H04B1/525 ,  H04B1/40 ,  H04B1/00

    CPC classification number: H04B1/1036 ,  H04B1/0067 ,  H04B1/0475 ,  H04B1/1081 ,  H04B1/40 ,  H04B1/525 ,  H04B15/00

    Abstract: A method suppresses transmission noise comprised in a plurality of downlink signals received by one of a first radio module or a second radio module comprised in a communications apparatus. The method receives a plurality of first signals and a plurality of second signals, wherein the first signals and the second signals are the downlink signals respectively received via different antennas of the one of the first radio module or the second radio module, or the first signals are the downlink signals received by the one of the first radio module or the second radio module and the second signals are a portion of the uplink signals provided by the other one of the first radio module and the second radio module, and processes the plurality of first signals and the plurality of second signals to cancel transmission noise comprised in the plurality of downlink signals.

    Abstract translation: 一种方法抑制由通信装置中包括的第一无线电模块或第二无线电模块之一接收的多个下行链路信号中包含的传输噪声。 该方法接收多个第一信号和多个第二信号，其中第一信号和第二信号是分别经由第一无线电模块或第二无线电模块之一的不同天线接收的下行链路信号，或第一信号 是由第一无线电模块或第二无线电模块之一接收的下行链路信号，并且第二信号是由第一无线电模块和第二无线电模块中的另一个提供的上行链路信号的一部分，并且处理多个 第一信号和多个第二信号以消除包含在多个下行链路信号中的传输噪声。

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