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公开(公告)号：US10277294B2
公开(公告)日：2019-04-30
申请号：US16110853
申请日：2018-08-23
Applicant: Apple Inc.
Inventor： Lai King Tee , Yi Song , Neng Wang
IPC: H04B7/0456 , H04B7/06 , H04L25/03 , H04B7/0452
Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
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2.发明申请公开(公告)号：US20190033424A1
公开(公告)日：2019-01-31
申请号：US16136862
申请日：2018-09-20
Applicant: Apple Inc.
Inventor： Lai King Tee , Geng Wu , Jun Li , Yuqiang Tang , Neng Wang , Hua Xu , Jianglei Ma
CPC classification number: G01S5/10 , H04L5/0007 , H04W24/10 , H04W64/00
Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.
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3.发明授权公开(公告)号：US10082558B2
公开(公告)日：2018-09-25
申请号：US15681903
申请日：2017-08-21
Applicant: Apple Inc.
Inventor： Lai King Tee , Geng Wu , Jun Li , Yuqiang Tang , Neng Wang , Hua Xu , Jianglei Ma
CPC classification number: G01S5/10 , H04L5/0007 , H04W4/02 , H04W24/10 , H04W64/00
Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.
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公开(公告)号：US09913276B2
公开(公告)日：2018-03-06
申请号：US15294979
申请日：2016-10-17
Applicant: Apple Inc.
Inventor： Lai King Tee , Yi Song , Jun Li , Yuqiang Tang , Neng Wang
CPC classification number: H04W72/0453 , H04L5/001 , H04L5/0053 , H04L5/0094 , H04W48/16 , H04W72/0406 , H04W72/042
Abstract: A mobile station receives a downlink control structure in a first carrier, where the downlink control structure indicates that control information for the mobile station is on a second, different carrier. The mobile station decodes the control information in the second carrier, where the control information specifies resource allocation of a wireless link for the mobile station. More specifically, according to some implementations, the control channel in the first carrier specifies the resource allocation for an extended control channel in the second carrier, where the extended control channel specifies the resource allocation for traffic data of a wireless link for the mobile station.
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5.发明授权公开(公告)号：US09739869B2
公开(公告)日：2017-08-22
申请号：US15241601
申请日：2016-08-19
Applicant: Apple Inc.
Inventor： Lai King Tee , Geng Wu , Jun Li , Yuqiang Tang , Neng Wang , Hua Xu , Jianglei Ma
CPC classification number: G01S5/10 , H04L5/0007 , H04W4/02 , H04W24/10 , H04W64/00
Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.
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Patent Agency Ranking
公开(公告)号：US09479239B2
公开(公告)日：2016-10-25
申请号：US14997871
申请日：2016-01-18
Applicant: Apple Inc.
Inventor： Lai King Tee , Yi Song , Neng Wang
CPC classification number: H04B7/0456 , H04B7/0452 , H04B7/0465 , H04B7/0469 , H04B7/0478 , H04B7/0639 , H04B7/0695 , H04L25/03828
Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
Abstract translation: 本发明提供了在SDMA扇区化蜂窝网络中信号强度加权的改进应用。 改进的信号强度加权应用通过改进的来自新码本子集的权重选择或通过从较大码本子集中的权重的选择来进行。 在另一个实施例中，可以使用天线波束索引或比特图来选择SDMA扇区化蜂窝网络中的最佳波束。 在另一个实施例中，上行链路或下行链路传输分组中的一个或多个因素可以指定哪个定向传输波束最适合于传输，或者当定向传输波束应被激活时。
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公开(公告)号：US09386569B2
公开(公告)日：2016-07-05
申请号：US14464238
申请日：2014-08-20
Applicant: Apple Inc.
Inventor： Lai King Tee , Yi Song , Neng Wang , Chuandong Li
CPC classification number: H04W72/0406 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L5/0046 , H04L27/0008 , H04L27/2614 , H04L27/2636
Abstract: In general, according to an embodiment, a wireless transmitter includes a plurality of coding and modulation modules to apply corresponding coding and modulation algorithms to input information blocks. A discrete Fourier transform (DFT) precoder applies DFT processing to outputs of the coding and modulation modules, and an inverse fast Fourier transform (IFFT) module receives a DFT output of the DFT precoder, which is mapped to different subcarriers according to the resource allocation indicated by the base station, and applies IFFT processing to the DFT output. An output processing stage produces output signals based on the output of the IFFT module to transmit wirelessly to a wireless receiver. In a different implementation, the outputs of the coding and modulation modules can be provided to an IFFT module to produce IFFT-processed output information.
Abstract translation: 通常，根据实施例，无线发射机包括多个编码和调制模块，以将相应的编码和调制算法应用于输入信息块。 离散傅立叶变换（DFT）预编码器对编码和调制模块的输出应用DFT处理，并且快速傅里叶逆变换（IFFT）模块接收DFT预编码器的DFT输出，其根据资源分配被映射到不同的子载波 由基站指示，并对DFT输出应用IFFT处理。 输出处理级根据IFFT模块的输出产生无线传输到无线接收器的输出信号。 在不同的实现中，编码和调制模块的输出可以被提供给IFFT模块以产生经IFFT处理的输出信息。
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公开(公告)号：US20160134346A1
公开(公告)日：2016-05-12
申请号：US14997871
申请日：2016-01-18
Applicant: Apple Inc.
Inventor： Lai King Tee , Yi Song , Neng Wang
IPC: H04B7/04
CPC classification number: H04B7/0456 , H04B7/0452 , H04B7/0465 , H04B7/0469 , H04B7/0478 , H04B7/0639 , H04B7/0695 , H04L25/03828
Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
Abstract translation: 本发明提供了在SDMA扇区化蜂窝网络中信号强度加权的改进应用。 改进的信号强度加权应用通过改进的来自新码本子集的权重选择或通过从较大码本子集中的权重的选择来进行。 在另一个实施例中，可以使用天线波束索引或比特图来选择SDMA扇区化蜂窝网络中的最佳波束。 在另一个实施例中，上行链路或下行链路传输分组中的一个或多个因素可以指定哪个定向传输波束最适合于传输，或者当定向传输波束应被激活时。
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公开(公告)号：US09270351B2
公开(公告)日：2016-02-23
申请号：US14561285
申请日：2014-12-05
Applicant: Apple Inc.
Inventor： Lai King Tee , Yi Song , Neng Wang
CPC classification number: H04B7/0456 , H04B7/0452 , H04B7/0465 , H04B7/0469 , H04B7/0478 , H04B7/0639 , H04B7/0695 , H04L25/03828
Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
Abstract translation: 本发明提供了在SDMA扇区化蜂窝网络中信号强度加权的改进应用。 改进的信号强度加权应用通过改进的来自新码本子集的权重选择或通过从较大码本子集中的权重的选择来进行。 在另一个实施例中，可以使用天线波束索引或比特图来选择SDMA扇区化蜂窝网络中的最佳波束。 在另一个实施例中，上行链路或下行链路传输分组中的一个或多个因素可以指定哪个定向传输波束最适合于传输，或者当定向传输波束应被激活时。
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10.发明申请Including Feedback Information Regarding an Individual Subband of a Wireless Channel 审中-公开包括关于无线信道的个别子带的反馈信息公开(公告)号：US20140376497A1
公开(公告)日：2014-12-25
申请号：US14481063
申请日：2014-09-09
Applicant: Apple Inc.
Inventor： Sairamesh Nammi , Shankar Venkatraman , Gaurav Hemrajani , Ashvin Chheda , Lai King Tee , Neng Wang , Kathiravetpillai Sivanesan
IPC: H04B7/06
CPC classification number: H04B7/0417 , H04B7/0619 , H04B7/063 , H04L5/0096 , H04W4/20 , H04W72/0413
Abstract: To report feedback information regarding a wireless channel, a mobile station determines whether a predefined condition is satisfied. In response to determining that the predefined condition is satisfied, feedback information regarding an individual one of plural subbands of the wireless channel is included in a first report to be sent to a base station. In response to determining that the predefined condition is not satisfied, aggregate feedback information regarding the plural subbands is included in a second report to be sent to the base station.
Abstract translation: 为了报告关于无线信道的反馈信息，移动台确定是否满足预定条件。 响应于确定满足预定条件，关于无线信道的多个子带中的各个子带的反馈信息被包括在要发送到基站的第一报告中。 响应于确定不满足预定义条件，关于多个子带的聚合反馈信息被包括在要发送到基站的第二报告中。
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