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1.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：US09160462B2
公开(公告)日：2015-10-13
申请号：US13777286
申请日：2013-02-26
Applicant: MediaTek Inc.
Inventor： Chih-Yuan Lin , Qiang Zhou , Charles Chien , Paul Cheng Po Liang , Wen-Wei Yang
CPC classification number: H04B1/1036 , H04B1/0067 , H04B1/0475 , H04B1/1081 , H04B1/40 , H04B1/525 , H04B15/00
Abstract: A communications apparatus is disclosed. A first radio module provides a first wireless communications service and communicates with a first communications device in compliance with a first protocol. A second radio module provides a second wireless communications service and communicates with a second communications device in compliance with a second protocol. A transmission noise suppression device is operative to process downlink signals received by the first radio module to cancel transmission noise comprised in the downlink signals, where the transmission noise is generated when the second radio module is processing uplink signals to be transmitted.
Abstract translation: 公开了一种通信装置。 第一无线电模块提供第一无线通信服务并根据第一协议与第一通信设备进行通信。 第二无线电模块提供第二无线通信服务，并根据第二协议与第二通信设备进行通信。 传输噪声抑制装置用于处理由第一无线电模块接收的下行链路信号以消除包括在下行链路信号中的传输噪声，其中当第二无线电模块正在处理要发送的上行链路信号时产生传输噪声。
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2.发明授权公开(公告)号：US09106357B2
公开(公告)日：2015-08-11
申请号：US14324236
申请日：2014-07-07
Applicant: MEDIATEK INC.
Inventor： Chih-Yuan Lin , Pei-Kai Liao
CPC classification number: H04J11/005 , H04L5/0007 , H04L5/005 , H04L27/261 , H04L2025/03796
Abstract: In wireless OFDMA systems, midamble is used to facilitate downlink (DL) channel estimation. Midamble signals are transmitted by a base station via a midamble channel allocated in a DL subframe. In a novel symbol-based midamble channel allocation scheme, a midamble channel is allocated in the first or the last OFDM symbol of multiple resource blocks of the subframe, while the remaining consecutive OFDM symbols are used for data transmission. The symbol-based midamble channel provides good coexistence between midamble signals and pilot signals without inducing additional limitation or complexity. Under a novel midamble channel and sequence arrangement, both code sequence and either time-domain or frequency-domain location degrees-of-freedom are considered such that the required number of midamble sequences is substantially smaller than the number of strong interferences. In addition, different midamble sequences are systematically generated based on a base sequence such that the receiving mobile station does not need to memorize all the different code sequences.
Abstract translation: 在无线OFDMA系统中，使用midamble来促进下行链路（DL）信道估计。 Midamble信号由基站经由在DL子帧中分配的中置码信道发送。 在一种新颖的基于符号的中间码信道分配方案中，在子帧的多个资源块的第一个或最后一个OFDM符号中分配一个中继码信道，而其余的连续的OFDM符号用于数据传输。 基于符号的中置码信道在中置信号和导频信号之间提供良好的共存，而不会引起额外的限制或复杂性。 在新颖的中间码信道和序列排列下，考虑码序列和时域或频域位置自由度，使得所需数量的中继码序列显着小于强干扰数。 此外，基于基本序列系统地生成不同的中间码序列，使得接收移动台不需要记住所有不同的代码序列。
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公开(公告)号：US20150119098A1
公开(公告)日：2015-04-30
申请号：US14584493
申请日：2014-12-29
Applicant: MEDIATEK INC.
Inventor： Chia-Chun Hsu , Michael Roberts , Chih-Yuan Lin , Yih-Shen Chen , I-Kang Fu
IPC: H04W52/24
CPC classification number: H04W52/243 , H04W52/34 , H04W52/365 , H04W52/367 , H04W52/38 , H04W72/048
Abstract: A power control method to mitigate in-device coexistence (IDC) interference is provided. A wireless communication device (UE) is equipped with a first LTE radio module and a second co-located WiFi/BT/GSNN radio module. Upon detecting coexistence or IDC interference, the UE applies power control method to mitigate the interference. In a first embodiment, the LTE radio module adjusts its power parameters locally without informing the serving eNB. In a second embodiment, the LTE radio module adjusts its power parameters and implicit informs the eNB through existing PHR reporting. In a third embodiment, the LTE radio module changes its power or power class and explicitly informs the eNB through UE capability or new RRC message or MAC CE. Power control can be used as a low cost and lightweight solution before applying other heavyweight solutions that either require more resource or control overhead, or have higher impact on throughput.
Abstract translation: 提供了减轻设备间共存（IDC）干扰的功率控制方法。 无线通信设备（UE）配备有第一LTE无线电模块和第二共同配置的WiFi / BT / GSNN无线电模块。 在检测到共存或IDC干扰时，UE采用功率控制方法来减轻干扰。 在第一实施例中，LTE无线电模块在本地调整其功率参数而不通知服务eNB。 在第二实施例中，LTE无线电模块调整其功率参数，并通过现有的PHR报告暗示通知eNB。 在第三实施例中，LTE无线电模块改变其功率或功率等级，并通过UE能力或新的RRC消息或MAC CE明确地通知eNB。 在应用其他重量级解决方案之前，功率控制可以用作低成本和轻量级的解决方案，需要更多资源或控制开销，或对吞吐量有较高的影响。
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公开(公告)号：US20140341167A1
公开(公告)日：2014-11-20
申请号：US14450430
申请日：2014-08-04
Applicant: Mediatek Inc.
Inventor： Yih-Shen Chen , Chih-Yuan Lin
CPC classification number: H04L5/0051 , H04L5/001 , H04L5/0023 , H04L5/0053 , H04L5/0091 , H04L5/0094 , H04W72/14
Abstract: A method of multi-set RRC signaling for ap-SRS configuration is provided to enhance ap-SRS flexibility. An eNB transmits a plurality of sets of UE-specific SRS parameters to a UE via upper layer messaging in a multi-carrier wireless communication system. The eNB also determines triggering information of a selected set of UE-specific SRS parameters and an indicated carrier for the UE. The eNB then transmits an uplink or downlink grant over a primary carrier, the grant comprises triggering information for the UE to send an ap-SRS over the indicated carrier using the selected set of UE-specific SRS parameters. In one embodiment of joint signaling, the plurality of sets of UE-specific SRS parameters are signaled together in a single RRC transmission. In another embodiment of separate signaling, each set of UE-specific SRS parameters is signaled independently.
Abstract translation: 提供了用于ap-SRS配置的多集RRC信令的方法以增强ap-SRS灵活性。 eNB在多载波无线通信系统中经由上层消息传送向UE发送多组UE特定的SRS参数。 eNB还确定UE特定SRS参数的所选集合的触发信息以及针对UE的所指示的载波。 eNB然后通过主载波发送上行链路或下行链路许可，该许可包括触发信息，以使UE使用所选择的UE专用SRS参数集来在所指示的载波上发送ap-SRS。 在联合信令的一个实施例中，在单个RRC传输中将多组UE特定SRS参数一起发信号通知。 在单独信令的另一个实施例中，UE集合的特定SRS参数被独立地发信号通知。
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公开(公告)号：US20140341065A1
公开(公告)日：2014-11-20
申请号：US14450450
申请日：2014-08-04
Applicant: MEDIATEK INC.
Inventor： Pei-Kai Liao , Chih-Yuan Lin
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。
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Patent Agency Ranking
公开(公告)号：US10038462B2
公开(公告)日：2018-07-31
申请号：US15591901
申请日：2017-05-10
Applicant: MEDIATEK INC.
Inventor： Ahmad Gomaa , Charles Chien , Ming Lei , Chih-Yuan Lin , Chun-Ying Ma
CPC classification number: H04B1/0475 , H04B1/0064 , H04B1/1081 , H04L25/0242 , H04L25/03343 , H04L25/03987
Abstract: A method of sparse digital cancellation of receiver nonlinear distortion in carrier aggregation systems is proposed. A reference signal generator generates possible candidate reference signals to be included in a dictionary matrix D. A sparsity-based solution is then applied to dynamically select reference signals based on the RF transceiver configuration. Based on the auto-correlation and cross-correlation with an observed radio signal, a subset of reference signals is selected from the dictionary matrix to match the distortion signal. The number of selected reference signals is flexibly determined based on the design constraints on complexity and power consumption. A greedy sparse estimation approaches, e.g., Orthogonal Matching Pursuit (OMP) can be used for reference signal selection. The reference signal selection is dynamic and adapts itself for different channel responses through correlating the observed radio signal with the dictionary reference signals.
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公开(公告)号：US09912499B2
公开(公告)日：2018-03-06
申请号：US15385436
申请日：2016-12-20
Applicant: MediaTek, Inc.
Inventor： Balachander Narasimhan , Charles Chien , Qiang Zhou , Chih-Yuan Lin , Cheng-Chou Zhan , Bao-Chi Peng
CPC classification number: H04L25/03019 , G06K7/10118 , G06K7/10138 , G06K19/07 , G06K19/0723 , H04B1/00 , H04B5/0031 , H04B5/0037 , H04B5/0075 , H04L1/203 , H04W4/80
Abstract: An electronic device for a wireless communication system is described. The electronic device comprises: a receiver configured to receive a modulated signal on a communication channel; and a processor, coupled to the receiver and configured to: process the received modulated signal; identify a communication channel characteristic based on the processed received modulated signal; select an equalizer having a first set of equalization coefficients based on the identified communication channel characteristic, wherein the first set of equalization coefficients is selected from a plurality of equalization coefficients, each of the plurality of equalization coefficients being associated with different communication channel characteristics; equalize the processed received modulated signal on the communication channel using the selected equalizer; and detect the equalized received modulated signal.
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公开(公告)号：US20170331502A1
公开(公告)日：2017-11-16
申请号：US15591901
申请日：2017-05-10
Applicant: MEDIATEK INC.
Inventor： Ahmad Gomaa , Charles Chien , Ming Lei , Chih-Yuan Lin , Chun-Ying Ma
CPC classification number: H04B1/0475 , H04B1/0064 , H04B1/1081 , H04L25/0242
Abstract: A method of sparse digital cancellation of receiver nonlinear distortion in carrier aggregation systems is proposed. A reference signal generator generates possible candidate reference signals to be included in a dictionary matrix D. A sparsity-based solution is then applied to dynamically select reference signals based on the RF transceiver configuration. Based on the auto-correlation and cross-correlation with an observed radio signal, a subset of reference signals is selected from the dictionary matrix to match the distortion signal. The number of selected reference signals is flexibly determined based on the design constraints on complexity and power consumption. A greedy sparse estimation approaches, e.g., Orthogonal Matching Pursuit (OMP) can be used for reference signal selection. The reference signal selection is dynamic and adapts itself for different channel responses through correlating the observed radio signal with the dictionary reference signals.
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公开(公告)号：US20170104613A1
公开(公告)日：2017-04-13
申请号：US15385436
申请日：2016-12-20
Applicant: MediaTek, Inc.
Inventor： Balachander Narasimhan , Charles Chien , Qiang Zhou , Chih-Yuan Lin , Cheng-Chou Zhan , Bao-Chi Peng
CPC classification number: H04L25/03019 , G06K7/10118 , G06K7/10138 , G06K19/07 , G06K19/0723 , H04B1/00 , H04B5/0031 , H04B5/0037 , H04B5/0075 , H04L1/203 , H04W4/80
Abstract: An electronic device for a wireless communication system is described. The electronic device comprises: a receiver configured to receive a modulated signal on a communication channel; and a processor, coupled to the receiver and configured to: process the received modulated signal; identify a communication channel characteristic based on the processed received modulated signal; select an equalizer having a first set of equalization coefficients based on the identified communication channel characteristic, wherein the first set of equalization coefficients is selected from a plurality of equalization coefficients, each of the plurality of equalization coefficients being associated with different communication channel characteristics; equalize the processed received modulated signal on the communication channel using the selected equalizer; and detect the equalized received modulated signal.
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10.发明申请公开(公告)号：US20160261436A1
公开(公告)日：2016-09-08
申请号：US14990001
申请日：2016-01-07
Applicant: MediaTek, Inc.
Inventor： Balachander Narasimhan , Charles Chien , Qiang Zhou , Chih-Yuan Lin , Cheng-Chou Zhan , Bao-Chi Peng
CPC classification number: H04L25/03019 , G06K7/10118 , G06K7/10138 , G06K19/07 , G06K19/0723 , H04B1/00 , H04B5/0031 , H04B5/0037 , H04B5/0075 , H04L1/203 , H04W4/80
Abstract: An electronic device for a wireless communication system is described. The electronic device comprises: a receiver configured to receive a modulated signal on a communication channel; and a processor, coupled to the receiver and configured to: process the received modulated signal; identify a communication channel characteristic based on the processed received modulated signal; select an equalizer having a first set of equalization coefficients based on the identified communication channel characteristic, wherein the first set of equalization coefficients is selected from a plurality of equalization coefficients, each of the plurality of equalization coefficients being associated with different communication channel characteristics; equalize the processed received modulated signal on the communication channel using the selected equalizer; and detect the equalized received modulated signal.
Abstract translation: 描述了一种用于无线通信系统的电子设备。 该电子设备包括：被配置为在通信信道上接收调制信号的接收机; 以及处理器，耦合到所述接收器并且被配置为：处理所接收的调制信号; 基于经处理的接收调制信号识别通信信道特性; 基于所识别的通信信道特性，选择具有第一组均衡系数的均衡器，其中，从多个均衡系数中选择所述第一组均衡系数，所述多个均衡系数中的每一个均与不同的通信信道特性相关联; 使用所选择的均衡器对通信信道上的经处理的接收调制信号进行均衡; 并检测均衡的接收调制信号。
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