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公开(公告)号：US09461738B2
公开(公告)日：2016-10-04
申请号：US14267965
申请日：2014-05-02
Applicant: Futurewei Technologies, Inc.
Inventor： Syed Rahman , Dao Pan , Fanglin Sun
IPC: H04B10/079 , H04B10/2575 , H04L5/00 , H04L27/26 , H04Q11/00
CPC classification number: H04B10/07955 , H04B10/25753 , H04B10/27 , H04L5/0048 , H04L27/2613 , H04L27/2647 , H04L27/2656 , H04L27/2675 , H04Q11/0067
Abstract: An apparatus comprising a receiver configured to couple to an Ethernet Passive Optical network over Coaxial (EPoC) network, and receive an upstream Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of OFDM Resource Elements (REs), and a processor coupled to the receiver and configured to determine a presence of a burst marker sequence in the received signal, wherein the burst marker sequence comprises interlaced pilot symbols and null symbols, and wherein determining the presence of the burst marker sequence comprises computing a power ratio between a first set of the OFDM REs and a second set of the OFDM REs, and determining that the burst marker sequence is found when the computed power ratio exceeds a pre-determined threshold.
Abstract translation: 一种装置，包括被配置为通过同轴（EPoC）网络耦合到以太网无源光网络并且接收包括多个OFDM资源元素（RE）的上行正交频分复用（OFDM）信号的接收机，以及耦合到 接收器并且被配置为确定接收信号中突发标记序列的存在，其中突发标记序列包括隔行导频符号和空符号，并且其中确定突发标记序列的存在包括计算第一组 OFDM RE和第二组OFDM RE，并且当所计算的功率比超过预定阈值时，确定突发标记序列被找到。
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2.发明授权公开(公告)号：US09497053B2
公开(公告)日：2016-11-15
申请号：US14204540
申请日：2014-03-11
Applicant: Futurewei Technologies, Inc.
Inventor： Xiaofeng Zhang , Tao Ouyang , Dao Pan , Xiaoshu Si , Syed Rahman
CPC classification number: H04L27/2613 , H04B10/25 , H04B10/27 , H04J1/02 , H04L5/0051 , H04L5/0094 , H04L12/2801 , H04L27/122
Abstract: A central access network unit comprising a processor configured to assign a plurality of upstream training blocks from an upstream OFDM symbol to a plurality of downstream network units, wherein the OFDM symbol comprises a plurality of pilot subcarriers equally spaced across an upstream RF spectrum in a pre-determined time interval, and wherein each upstream training block comprises a different subset of the pilot subcarriers that are non-consecutive and situated across the upstream RF spectrum, and generate one or more messages comprising assignments of the upstream training blocks, and a transmitter coupled to the processor and configured to transmit the messages to the plurality of downstream network units via a network, wherein the messages instruct at least one of the plurality of downstream network units to transmit a modulated pre-determined sequence at the pilot subcarriers corresponding to the upstream training block assigned to the downstream network unit.
Abstract translation: 一种中央接入网络单元，包括：处理器，被配置为将多个上游训练块从上游OFDM符号分配到多个下游网络单元，其中所述OFDM符号包括在预先的上行RF频谱上等距间隔的多个导频子载波 并且其中每个上游训练块包括不连续且位于上游RF频谱上的导频子载波的不同子集，并且生成包括上行训练块的分配的一个或多个消息，以及发射机 并且被配置为经由网络将消息发送到所述多个下游网络单元，其中所述消息指示所述多个下游网络单元中的至少一个在与所述上游对应的导频子载波处发送经调制的预定序列 训练块分配给下游网络单元。
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3.发明申请公开(公告)号：US20140254697A1
公开(公告)日：2014-09-11
申请号：US14204540
申请日：2014-03-11
Applicant: Futurewei Technologies, Inc.
Inventor： Xiaofeng Zhang , Yangtao Ou , Dao Pan , Xiaoshu Si , Syed Rahman
IPC: H04L27/12
CPC classification number: H04L27/2613 , H04B10/25 , H04B10/27 , H04J1/02 , H04L5/0051 , H04L5/0094 , H04L12/2801 , H04L27/122
Abstract: A central access network unit comprising a processor configured to assign a plurality of upstream training blocks from an upstream OFDM symbol to a plurality of downstream network units, wherein the OFDM symbol comprises a plurality of pilot subcarriers equally spaced across an upstream RF spectrum in a pre-determined time interval, and wherein each upstream training block comprises a different subset of the pilot subcarriers that are non-consecutive and situated across the upstream RF spectrum, and generate one or more messages comprising assignments of the upstream training blocks, and a transmitter coupled to the processor and configured to transmit the messages to the plurality of downstream network units via a network, wherein the messages instruct at least one of the plurality of downstream network units to transmit a modulated pre-determined sequence at the pilot subcarriers corresponding to the upstream training block assigned to the downstream network unit.
Abstract translation: 一种中央接入网络单元，包括：处理器，被配置为将多个上游训练块从上游OFDM符号分配到多个下游网络单元，其中所述OFDM符号包括在预先的上行RF频谱上等距间隔的多个导频子载波 并且其中每个上游训练块包括不连续且位于上游RF频谱上的导频子载波的不同子集，并且生成包括上行训练块的分配的一个或多个消息，以及发射机 并且被配置为经由网络将消息发送到所述多个下游网络单元，其中所述消息指示所述多个下游网络单元中的至少一个在与所述上游对应的导频子载波处发送经调制的预定序列 训练块分配给下游网络单元。
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4.发明申请公开(公告)号：US20180316535A1
公开(公告)日：2018-11-01
申请号：US16029967
申请日：2018-07-09
Applicant: Futurewei Technologies, Inc.
Inventor： Xiaofeng ZHANG , Tao Ouyang , Dao Pan , Xiaoshu Si , Syed Rahman
CPC classification number: H04L27/2613 , H04B10/25 , H04B10/27 , H04J1/02 , H04L5/0051 , H04L5/0094 , H04L12/2801 , H04L27/122
Abstract: A central access network unit comprising a processor configured to assign a plurality of upstream training blocks from an upstream OFDM symbol to a plurality of downstream network units, wherein the OFDM symbol comprises a plurality of pilot subcarriers equally spaced across an upstream RF spectrum in a pre-determined time interval, and wherein each upstream training block comprises a different subset of the pilot subcarriers that are non-consecutive and situated across the upstream RF spectrum, and generate one or more messages comprising assignments of the upstream training blocks, and a transmitter coupled to the processor and configured to transmit the messages to the plurality of downstream network units via a network, wherein the messages instruct at least one of the plurality of downstream network units to transmit a modulated pre-determined sequence at the pilot subcarriers corresponding to the upstream training block assigned to the downstream network unit.
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5.发明授权Method and apparatus for allocating OFDM subcarriers for next codeword pointers or other signaling messages 有权用于为下一个码字指针或其他信令消息分配OFDM子载波的方法和装置公开(公告)号：US09258101B2
公开(公告)日：2016-02-09
申请号：US14149416
申请日：2014-01-07
Applicant: Futurewei Technologies, Inc.
Inventor： Fanglin Sun , Dao Pan , Jim Jeng Chen
IPC: H04L5/00
CPC classification number: H04L5/0058 , H04L5/0039 , H04L5/0046
Abstract: An apparatus for communication. A headend supports a plurality of customer premises equipment (CPEs) in a cable service network. An NCP carrier selector selects at least one orthogonal frequency division multiplex (OFDM) subcarrier taken from a radio frequency (RF) spectrum available for broadcasting signals over the cable service network using a plurality of profiles, wherein each selected OFDM subcarrier comprises a corresponding bit loading for each supported profile that meets or exceeds a minimum number of bits used for delivering next codeword pointer (NCP) messages that is acceptable for each of a plurality of profiles used in the plurality of CPEs for receiving signals over the cable service network. A profile generator generates an NCP profile identifying one or more selected OFDM subcarriers, wherein the NCP profile indicates which OFDM subcarriers within the RF spectrum are usable to carry NCP messages, and an associated bit loading for each selected subcarrier.
Abstract translation: 一种通信装置。 前端支持有线服务网络中的多个客户驻地设备（CPE）。 NCP载波选择器使用多个简档来选择从可用于通过有线服务网络广播信号的射频（RF）频谱获取的至少一个正交频分复用（OFDM）子载波，其中每个选择的OFDM子载波包括相应的比特加载 对于每个支持的配置文件，其满足或超过用于递送对于在用于通过有线服务网络接收信号的多个CPE中使用的多个配置文件中的每一个的可接受的下一码字指针（NCP）消息的最小位数。 简档生成器生成标识一个或多个所选OFDM子载波的NCP简档，其中NCP简档指示RF频谱内哪些OFDM子载波可用于承载NCP消息，以及每个选择的子载波的相关联的比特加载。
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Patent Agency Ranking
6.发明申请Allocating Orthogonal Frequency-Division Multiple Access (OFDMA) Resources In Ethernet Passive Optical Network (EPON) Over Coaxial (EPOC) 有权以太网无源光网络（EPON）在同轴（EPOC）上分配正交频分多址（OFDMA）资源公开(公告)号：US20140314418A1
公开(公告)日：2014-10-23
申请号：US14258419
申请日：2014-04-22
Applicant: Futurewei Technologies, Inc.
Inventor： Fang Lin Sun , Dao Pan , Li Zhang , Jim Chen
CPC classification number: H04L5/0044 , H04B3/00 , H04B10/27 , H04J14/00 , H04J2203/0089 , H04L5/0064 , H04L12/2801 , H04L27/2697 , H04Q11/0067 , H04Q11/0071 , H04Q2011/0064
Abstract: A method implemented in a Fiber Coaxial Unit (FCU) comprising receiving a plurality of Ethernet Passive Optical Network (EPON) report messages from a plurality of Coaxial Network Units (CNUs) across a coaxial network, receiving an EPON gate message comprising Time Quanta (TQ) information indicating an upstream transmission time grant for the FCU across the optical network, translating the TQ based upstream transmission time grants to OFDM resource block grants in a time domain and in a frequency domain across the coaxial network for each CNU based on the configurable constants, and transmitting an EPON over Coaxial (EPoC) gate message to each CNU, wherein each EPoC gate message comprises a CNU profile indicating the Orthogonal Frequency-Division Multiplexing (OFDM) resource block grants for the an associated CNU and a start time.
Abstract translation: 一种在光纤同轴单元（FCU）中实现的方法，包括：跨越同轴网络从多个同轴网络单元（CNU）接收多个以太网无源光网络（EPON）报告消息，接收包括时间量子（TQ）的EPON门信息 ）信息，其指示FCU跨越光网络的上行传输时间许可，基于可配置常数，将基于TQ的上行传输时间授权在时域和频域跨频道转换到OFDM资源块授权 并且将EPON通过同轴（EPoC）门信息发送到每个CNU，其中每个EPoC门消息包括指示相关CNU的正交频分复用（OFDM）资源块授权和开始时间的CNU简档。
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公开(公告)号：US10020974B2
公开(公告)日：2018-07-10
申请号：US15282157
申请日：2016-09-30
Applicant: Futurewei Technologies, Inc.
Inventor： Xiaofeng Zhang , Tao Ouyang , Dao Pan , Xiaoshu Si , Syed Rahman
CPC classification number: H04L27/2613 , H04B10/25 , H04B10/27 , H04J1/02 , H04L5/0051 , H04L5/0094 , H04L12/2801 , H04L27/122
Abstract: A central access network unit comprising a processor configured to assign a plurality of upstream training blocks from an upstream OFDM symbol to a plurality of downstream network units, wherein the OFDM symbol comprises a plurality of pilot subcarriers equally spaced across an upstream RF spectrum in a pre-determined time interval, and wherein each upstream training block comprises a different subset of the pilot subcarriers that are non-consecutive and situated across the upstream RF spectrum, and generate one or more messages comprising assignments of the upstream training blocks, and a transmitter coupled to the processor and configured to transmit the messages to the plurality of downstream network units via a network, wherein the messages instruct at least one of the plurality of downstream network units to transmit a modulated pre-determined sequence at the pilot subcarriers corresponding to the upstream training block assigned to the downstream network unit.
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8.发明授权Allocating orthogonal frequency-division multiple access (OFDMA) resources in data over cable services interface specification (DOCSIS) networks 有权通过电缆业务接口规范（DOCSIS）网络在数据中分配正交频分多址（OFDMA）资源公开(公告)号：US09444594B2
公开(公告)日：2016-09-13
申请号：US14258428
申请日：2014-04-22
Applicant: Futurewei Technologies, Inc.
Inventor： Fanglin Sun , Dao Pan , Li Zhang , Jim Chen
CPC classification number: H04L5/0044 , H04B3/00 , H04B10/27 , H04J14/00 , H04J2203/0089 , H04L5/0064 , H04L12/2801 , H04L27/2697 , H04Q11/0067 , H04Q11/0071 , H04Q2011/0064
Abstract: A Cable Modem Termination System (CMTS) comprising a receiver configured to receive a plurality of upstream transmission request messages from a plurality of coaxial units via an electro-optical network, wherein the upstream transmission request messages each request permission to transmit a specified amount of data, a processor coupled to the receiver and configured to allocate Orthogonal Frequency-Division Multiplexing (OFDM) minislots to each coaxial unit based on the amount of data requested in the associated upstream transmission request message, and a transmitter coupled to the processor and configured to transmit at least one Uplink Allocation Map (UL-MAP) message to indicate minislot allocations to the coaxial units.
Abstract translation: 一种有线调制解调器终端系统（CMTS），包括被配置为经由电光网络从多个同轴单元接收多个上行传输请求消息的接收机，其中所述上行传输请求消息每个请求允许传送指定量的数据 耦合到所述接收机并且被配置为基于所述相关联的上行传输请求消息中所请求的数据量，向每个同轴单元分配正交频分复用（OFDM）小时隙的处理器，以及耦合到所述处理器并被配置为传送 至少一个上行链路分配映射（UL-MAP）消息，以指示对同轴单元的小时隙分配。
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公开(公告)号：US20140328589A1
公开(公告)日：2014-11-06
申请号：US14267965
申请日：2014-05-02
Applicant: Futurewei Technologies, Inc.
Inventor： Syed Rahman , Dao Pan , Fang Lin Sun
IPC: H04B10/079 , H04B10/2575
CPC classification number: H04B10/07955 , H04B10/25753 , H04B10/27 , H04L5/0048 , H04L27/2613 , H04L27/2647 , H04L27/2656 , H04L27/2675 , H04Q11/0067
Abstract: An apparatus comprising a receiver configured to couple to an Ethernet Passive Optical network over Coaxial (EPoC) network, and receive an upstream Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of OFDM Resource Elements (REs), and a processor coupled to the receiver and configured to determine a presence of a burst marker sequence in the received signal, wherein the burst marker sequence comprises interlaced pilot symbols and null symbols, and wherein determining the presence of the burst marker sequence comprises computing a power ratio between a first set of the OFDM REs and a second set of the OFDM REs, and determining that the burst marker sequence is found when the computed power ratio exceeds a pre-determined threshold.
Abstract translation: 一种装置，包括被配置为通过同轴（EPoC）网络耦合到以太网无源光网络并且接收包括多个OFDM资源元素（RE）的上行正交频分复用（OFDM）信号的接收机，以及耦合到 接收器并且被配置为确定接收信号中突发标记序列的存在，其中突发标记序列包括隔行导频符号和空符号，并且其中确定突发标记序列的存在包括计算第一组 OFDM RE和第二组OFDM RE，并且当所计算的功率比超过预定阈值时，确定突发标记序列被找到。
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10.发明申请Upstream Pilot Structures in Point-To-Multipoint Orthogonal Frequency-Division Multiplexing (OFDM) Communication Systems 有权点对多点正交频分复用（OFDM）通信系统中的上行导频结构公开(公告)号：US20170019283A1
公开(公告)日：2017-01-19
申请号：US15282157
申请日：2016-09-30
Applicant: Futurewei Technologies, Inc.
Inventor： Xiaofeng Zhang , Tao Ouyang , Dao Pan , Xiaoshu Si , Syed Rahman
CPC classification number: H04L27/2613 , H04B10/25 , H04B10/27 , H04J1/02 , H04L5/0051 , H04L5/0094 , H04L12/2801 , H04L27/122
Abstract: A central access network unit comprising a processor configured to assign a plurality of upstream training blocks from an upstream OFDM symbol to a plurality of downstream network units, wherein the OFDM symbol comprises a plurality of pilot subcarriers equally spaced across an upstream RF spectrum in a pre-determined time interval, and wherein each upstream training block comprises a different subset of the pilot subcarriers that are non-consecutive and situated across the upstream RF spectrum, and generate one or more messages comprising assignments of the upstream training blocks, and a transmitter coupled to the processor and configured to transmit the messages to the plurality of downstream network units via a network, wherein the messages instruct at least one of the plurality of downstream network units to transmit a modulated pre-determined sequence at the pilot subcarriers corresponding to the upstream training block assigned to the downstream network unit.
Abstract translation: 一种中央接入网络单元，包括：处理器，被配置为将多个上游训练块从上游OFDM符号分配到多个下游网络单元，其中所述OFDM符号包括在预先的上行RF频谱上等距间隔的多个导频子载波 并且其中每个上游训练块包括不连续且位于上游RF频谱上的导频子载波的不同子集，并且生成包括上行训练块的分配的一个或多个消息，以及发射机 并且被配置为经由网络将消息发送到所述多个下游网络单元，其中所述消息指示所述多个下游网络单元中的至少一个在与所述上游对应的导频子载波处发送经调制的预定序列 训练块分配给下游网络单元。
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