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公开(公告)号：US10470177B2
公开(公告)日：2019-11-05
申请号：US15017955
申请日：2016-02-08
Applicant: MEDIATEK INC.
Inventor： Xiangyang Zhuang , Feifei Sun
Abstract: Apparatus and method are provided to determine the starting subframe of a data channel. In one novel aspect, the UE monitors one or more control channel candidates, which at least one of the control channel candidate occupies a plurality of the subframes. The UE detects a control channel intended for the UE, decodes the control channel and determines the starting subframe of the data channel based on the control channel and a known gap. The UE further obtains a subframe indicator from the control channel. The subframe indicator signals either the number of subframes between the starting subframe of the data channel and the starting subframe of the control channel, or the number of subframes of the control channel, or the starting subframe of the data channel. In one embodiment, predefined rule can be applied to the subframe indicator to determining the starting subframe of the data channel.
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公开(公告)号：US20170156079A1
公开(公告)日：2017-06-01
申请号：US15431417
申请日：2017-02-13
Applicant: MEDIATEK INC.
Inventor： Lung-Sheng Tsai , Xiangyang Zhuang
CPC classification number: H04W28/04 , H04B1/123 , H04B15/00 , H04J11/004 , H04J11/005 , H04J11/0053 , H04L1/00 , H04L5/0007 , H04L5/0048 , H04L5/0073 , H04L5/0091 , H04L25/0202 , H04L25/0224 , H04L25/0328 , H04W24/02 , H04W72/0426 , H04W88/08
Abstract: A method of interference cancellation is proposed. A UE obtains configuration information of a data transmission from a neighboring cell via an interference channel in a mobile communication network. The UE receives radio signals on a set of data resource elements as determined based on the obtained configuration information. The UE then estimates the interference channel corresponding to the data transmission from the neighboring cell based on the received radio signals on the set of data resource elements. Finally, the UE cancels the data transmission from the neighboring cell based on the estimated interference channel.
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公开(公告)号：US09602229B2
公开(公告)日：2017-03-21
申请号：US14607361
申请日：2015-01-28
Applicant: MEDIATEK INC.
Inventor： Lung-Sheng Tsai , Xiangyang Zhuang
IPC: H04W4/00 , H04J11/00 , H04B1/12 , H04W28/04 , H04L5/00 , H04W72/04 , H04L1/00 , H04L25/03 , H04W88/08
CPC classification number: H04W28/04 , H04B1/123 , H04B15/00 , H04J11/004 , H04J11/005 , H04J11/0053 , H04L1/00 , H04L5/0007 , H04L5/0048 , H04L5/0073 , H04L5/0091 , H04L25/0202 , H04L25/0224 , H04L25/0328 , H04W24/02 , H04W72/0426 , H04W88/08
Abstract: A method of interference cancellation is proposed. A UE obtains configuration information of a data transmission from a neighboring cell via an interference channel in a mobile communication network. The UE receives radio signals on a set of data resource elements as determined based on the obtained configuration information. The UE then estimates the interference channel corresponding to the data transmission from the neighboring cell based on the received radio signals on the set of data resource elements. Finally, the UE cancels the data transmission from the neighboring cell based on the estimated interference channel.
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4.发明申请Method for Search Space Configuration of Enhanced Physical Downlink Control Channel 有权搜索空间配置增强物理下行链路控制信道的方法公开(公告)号：US20160353421A1
公开(公告)日：2016-12-01
申请号：US15233099
申请日：2016-08-10
Applicant: MEDIATEK INC.
Inventor： Pei-Kai Liao , Xiangyang Zhuang
CPC classification number: H04W72/042 , H04L5/0007 , H04L5/0053 , H04L5/0092 , H04W48/12
Abstract: A method to allocate physical radio resources for both distributed and localized transmission schemes of ePDCCH and configure common and UE-specific search space for UE is provided. In one embodiment, a UE receives a first high-layer information to determine a first set of PRBs. The UE determines a first set of candidate ePDCCHs within the first set of PRBs, wherein one or more candidate ePDCCHs potentially carries DCI intended for the UE. The UE then decodes the first set of candidate ePDCCHs to obtain the DCI intended for the UE. Similar steps are performed for a second set of candidate ePDCCHs potentially carrying DCI intended for the UE. The allocated radio resources of the candidate ePDCCHs may be distributed or localized and constitute either common or UE-specific search space. Blind decoding complexity is reduced.
Abstract translation: 提供了一种为ePDCCH的分布式和局部化传输方案分配物理无线电资源并为UE配置公共和UE特定搜索空间的方法。 在一个实施例中，UE接收第一高层信息以确定第一组PRB。 UE确定第一组PRB内的第一组候选ePDCCH，其中一个或多个候选ePDCCH潜在地携带用于UE的DCI。 然后，UE对第一组候选ePDCCH进行解码，以获得预定用于UE的DCI。 对可能承载用于UE的DCI的第二组候选ePDCCH执行类似的步骤。 候选ePDCCH的分配的无线电资源可以被分布或本地化，并且构成公共或特定于UE的搜索空间。 盲目的解码复杂度降低。
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5.发明授权Method for search space configuration of enhanced physical downlink control channel 有权增强物理下行链路控制信道的搜索空间配置方法公开(公告)号：US09445409B2
公开(公告)日：2016-09-13
申请号：US13847619
申请日：2013-03-20
Applicant: MEDIATEK, INC.
Inventor： Pei-Kai Liao , Xiangyang Zhuang
CPC classification number: H04W72/042 , H04L5/0007 , H04L5/0053 , H04L5/0092 , H04W48/12
Abstract: A method to allocate physical radio resources for both distributed and localized transmission schemes of ePDCCH and configure common and UE-specific search space for UE is provided. In one embodiment, a UE receives a first high-layer information to determine a first set of PRBs. The UE determines a first set of candidate ePDCCHs within the first set of PRBs, wherein one or more candidate ePDCCHs potentially carries DCI intended for the UE. The UE then decodes the first set of candidate ePDCCHs to obtain the DCI intended for the UE. Similar steps are performed for a second set of candidate ePDCCHs potentially carrying DCI intended for the UE. The allocated radio resources of the candidate ePDCCHs may be distributed or localized and constitute either common or UE-specific search space. Blind decoding complexity is reduced.
Abstract translation: 提供了一种为ePDCCH的分布式和局部化传输方案分配物理无线电资源并为UE配置公共和UE特定搜索空间的方法。 在一个实施例中，UE接收第一高层信息以确定第一组PRB。 UE确定第一组PRB内的第一组候选ePDCCH，其中一个或多个候选ePDCCH潜在地携带用于UE的DCI。 然后，UE对第一组候选ePDCCH进行解码，以获得预定用于UE的DCI。 对可能承载用于UE的DCI的第二组候选ePDCCH执行类似的步骤。 候选ePDCCH的分配的无线电资源可以被分布或本地化，并且构成公共或特定于UE的搜索空间。 盲目的解码复杂度降低。
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Patent Agency Ranking
公开(公告)号：US20140146696A1
公开(公告)日：2014-05-29
申请号：US14089334
申请日：2013-11-25
Applicant: MEDIATEK, INC.
Inventor： Shiang-Jiun Lin , Chien-Hwa Hwang , Xiangyang Zhuang
CPC classification number: H04L5/14 , H04L5/005 , H04L5/0053 , H04L5/0094 , H04L5/1469 , H04L47/762 , H04W72/04 , H04W72/044 , H04W72/0446 , H04W72/12 , H04W72/1205 , H04W72/1252
Abstract: Methods for UE measurement enhancement in an adaptive TDD configuration network are proposed. In a first solution, the network provides an adaptive TDD indicator to the UE. In a second solution, the network provides an instantaneous TDD configuration to the UE. In a third solution, multiple TDD configurations are grouped as one TDD group, and the network adapts TDD configurations within the same TDD group. In a fourth solution, the network broadcasts a TDD reference configuration in SIB1, and adapts to another TDD configuration with DL super set constraint, i.e., the DL subframes of the other TDD configuration form a super set of the DL subframes of the broadcasted TDD reference configuration.
Abstract translation: 提出了自适应TDD配置网络中UE测量增强的方法。 在第一种解决方案中，网络向UE提供自适应TDD指示符。 在第二种解决方案中，网络向UE提供瞬时TDD配置。 在第三种解决方案中，多个TDD配置被分组为一个TDD组，并且网络适应同一TDD组内的TDD配置。 在第四种解决方案中，网络在SIB1中广播TDD参考配置，并且适应具有DL超级约束的另一TDD配置，即，另一TDD配置的DL子帧形成广播的TDD参考的DL子帧的超集 组态。
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7.发明申请Methods for Resource Multiplexing of Distributed and Localized transmission in Enhanced Physical Downlink Control Channel 审中-公开增强物理下行链路控制信道中分布式和局部化传输的资源多路复用方法公开(公告)号：US20130301562A1
公开(公告)日：2013-11-14
申请号：US13889554
申请日：2013-05-08
Applicant: MEDIATEK, INC.
Inventor： Pei-Kai Liao , Xiangyang Zhuang
IPC: H04W72/04
CPC classification number: H04W72/042 , H04L5/0023 , H04L5/0035 , H04L5/0053 , H04L5/0094
Abstract: A method to multiplexing physical radio resources for both distributed and localized transmission of enhanced Physical Downlink Control Channel (ePDCCH) in a set of physical resource blocks (PRBs) is provided. A UE receives higher-layer information to determine a set of radio resources. The UE decodes a first set of candidate enhanced physical downlink control channel (ePDCCHs) within the set of received radio resources, wherein radio resources corresponding to each of the first set of ePDCCHs are defined by a first mapping rule (e.g., distributed-type ePDCCH). The UE decodes a second set of candidate ePDCCHs within the same set of received radio resources, wherein radio resources corresponding to each of the second set of candidate ePDCCHs are defined by a second mapping rule (e.g., localized-type ePDCCH). By multiplexing radio resources for distributed and localized ePDCCH transmission within the same set of PRBs, radio resource utilization is enhanced.
Abstract translation: 提供了一种用于在一组物理资源块（PRB）中复用用于分布式和局部传输增强物理下行链路控制信道（ePDCCH）的物理无线电资源的方法。 UE接收更高层信息以确定一组无线电资源。 UE解码在所接收的无线电资源集合内的第一组候选增强物理下行链路控制信道（ePDCCH），其中与第一组ePDCCH中的每一个对应的无线电资源由第一映射规则（例如，分布型ePDCCH ）。 UE在相同的接收无线电资源集合内解码第二组候选ePDCCH，其中与第二组候选ePDCCH中的每一个相对应的无线电资源由第二映射规则（例如，局部型ePDCCH）定义。 通过在同一组PRB内复用用于分布式和本地化的ePDCCH传输的无线电资源，增强了无线资源的利用。
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8.发明申请Method For Search Space Configuration of Enhanced Physical Downlink Control Channel 有权搜索空间配置增强物理下行链路控制信道的方法公开(公告)号：US20130250880A1
公开(公告)日：2013-09-26
申请号：US13847619
申请日：2013-03-20
Applicant: MEDIATEK, INC.
Inventor： Pei-Kai Liao , Xiangyang Zhuang
IPC: H04W72/04
CPC classification number: H04W72/042 , H04L5/0007 , H04L5/0053 , H04L5/0092 , H04W48/12
Abstract: A method to allocate physical radio resources for both distributed and localized transmission schemes of ePDCCH and configure common and UE-specific search space for UE is provided. In one embodiment, a UE receives a first high-layer information to determine a first set of PRBs. The UE determines a first set of candidate ePDCCHs within the first set of PRBs, wherein one or more candidate ePDCCHs potentially carries DCI intended for the UE. The UE then decodes the first set of candidate ePDCCHs to obtain the DCI intended for the UE. Similar steps are performed for a second set of candidate ePDCCHs potentially carrying DCI intended for the UE. The allocated radio resources of the candidate ePDCCHs may be distributed or localized and constitute either common or UE-specific search space. Blind decoding complexity is reduced.
Abstract translation: 提供了一种为ePDCCH的分布式和局部化传输方案分配物理无线电资源并为UE配置公共和UE特定搜索空间的方法。 在一个实施例中，UE接收第一高层信息以确定第一组PRB。 UE确定第一组PRB内的第一组候选ePDCCH，其中一个或多个候选ePDCCH潜在地携带用于UE的DCI。 然后，UE对第一组候选ePDCCH进行解码，以获得预定用于UE的DCI。 对可能承载用于UE的DCI的第二组候选ePDCCH执行类似的步骤。 候选ePDCCH的分配的无线电资源可以被分布或本地化，并且构成公共或特定于UE的搜索空间。 盲目的解码复杂度降低。
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公开(公告)号：US10111131B2
公开(公告)日：2018-10-23
申请号：US15431445
申请日：2017-02-13
Applicant: MEDIATEK INC.
Inventor： Lung-Sheng Tsai , Xiangyang Zhuang
Abstract: A method of interference cancellation is proposed. A UE obtains configuration information of a data transmission from a neighboring cell via an interference channel in a mobile communication network. The UE receives radio signals on a set of data resource elements as determined based on the obtained configuration information. The UE then estimates the interference channel corresponding to the data transmission from the neighboring cell based on the received radio signals on the set of data resource elements. Finally, the UE cancels the data transmission from the neighboring cell based on the estimated interference channel.
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公开(公告)号：US10057018B2
公开(公告)日：2018-08-21
申请号：US14870207
申请日：2015-09-30
Applicant: MEDIATEK INC.
Inventor： Shiang-Jiun Lin , Min Wu , Chien-Hwa Hwang , Xiangyang Zhuang
CPC classification number: H04L1/1861 , H04L1/1812 , H04L1/1822 , H04L1/1848 , H04L1/1854 , H04L5/1469 , H04W72/1289 , H04W76/28
Abstract: A method of DRX operation enhancement in adaptive TDD systems is proposed. A UE configures and enters DRX operation in an LTE/LTE-A mobile communication network. The UE obtains adaptive TDD configuration information from a base station. The adaptive TDD configuration information comprises an actual TDD configuration and a reference TDD configuration. The UE performs DRX timer counting and HARQ timer counting based on the reference TDD configuration. The UE also synchronizes DRX status with the base station. With the reference TDD configuration, it can avoid the potential misunderstanding between eNB and UE regarding DRX and HARQ RTT timing when TDD configuration changes.
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