公开(公告)号：US20170012723A1

公开(公告)日：2017-01-12

申请号：US15206049

申请日：2016-07-08

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Sridhar Ramesh

IPC: H04B17/336 ,  H04L29/08

CPC classification number: H04L69/323 ,  H04B3/46

Abstract: A first Multimedia over Coax Alliance (MoCA) compatible device comprises a physical layer profiling circuit and a spectrum abstraction circuit. The physical layer profiling circuit may for example be operable to measure a performance metric for each of a plurality of subbands on a shared coaxial cable of a MoCA network. The spectrum abstraction circuit may for example be operable to select, based at least in part on the measured performance metric, a subset of the subbands to be used for communication over the coaxial cable between the first MoCA-compatible device and a second MoCA-compatible device. The spectrum abstraction circuit may for example be operable to receive an indication of whether channel bonding is to be used for the communication over the coaxial cable between the first MoCA-compatible device and the second MoCA-compatible device. The spectrum abstraction circuit may for example be operable to perform the selection of the subset of the subbands based at least in part on the indication of whether channel-bonding is to be used.

Abstract translation: 第一个多媒体同轴联盟（MoCA）兼容设备包括物理层分析电路和频谱抽象电路。 物理层分析电路例如可以用于测量MoCA网络的共享同轴电缆上的多个子带中的每一个的性能度量。 频谱抽象电路可以例如可操作以至少部分地基于测量的性能度量来选择要用于通过第一MoCA兼容设备和第二MoCA兼容设备之间的同轴电缆进行通信的子带的子集 设备。 频谱抽象电路可以例如可操作以接收信道绑定是否将用于通过第一MoCA兼容设备和第二MoCA兼容设备之间的同轴电缆的通信的指示。 频谱抽象电路可以例如可操作以至少部分地基于是否要使用信道绑定的指示来执行子带子集的选择。

公开(公告)号：US09544076B2

公开(公告)日：2017-01-10

申请号：US13887314

申请日：2013-05-04

Applicant: MaxLinear, Inc.

Inventor： Glenn Chang ,  Sridhar Ramesh ,  Timothy Gallagher

IPC: H04J1/02 ,  H04B3/20 ,  H04J1/04 ,  H04B1/525 ,  H04W16/14

CPC classification number: H04J1/045 ,  H04B1/525 ,  H04J1/12 ,  H04L12/2838 ,  H04N21/438 ,  H04W16/14

Abstract: A transceiver system may be configured to provide tunable bandwidths. The transceiver may comprise a signal processing component and a filtering component, which may comprise a plurality of filters. The signal processing component may determine one or more adjustments that are applicable to one or both of a first filter that is configured for filtering signals corresponding to a first frequency band associated with a first stream, and a second filter that is configured for filtering signals corresponding to a second frequency band associated with a second stream. The one or more adjustments may correspond to modifications in one or both of the first frequency band and the second frequency band. The one or more adjustments may be communicated to the filtering component, which may apply the adjustments to one or more of the plurality of filters.

Abstract translation: 收发器系统可以被配置为提供可调谐带宽。 收发器可以包括信号处理部件和滤波部件，滤波部件可以包括多个滤波器。 信号处理组件可以确定适用于被配置为滤波对应于与第一流相关联的第一频带的信号的第一滤波器中的一个或两者的一个或多个调整，以及被配置用于滤波相应的信号的第二滤波器 到与第二流相关联的第二频带。 一个或多个调整可以对应于在第一频带和第二频带中的一个或两个中的修改。 一个或多个调整可以传送到过滤组件，其可以将调整应用于多个过滤器中的一个或多个。

公开(公告)号：US09419858B2

公开(公告)日：2016-08-16

申请号：US13948444

申请日：2013-07-23

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Sridhar Ramesh ,  Timothy Gallagher

IPC: H04L12/24 ,  H04L1/00

CPC classification number: H04L41/0823 ,  H04B17/318 ,  H04L1/0009 ,  H04L1/0026 ,  H04L12/2801 ,  H04L27/2601 ,  H04L27/2602 ,  H04L43/08 ,  H04L43/12

Abstract: A cable modem termination system (CMTS) may determine, for a plurality of cable modems served by the CMTS, a corresponding plurality of SNR-related metrics. The CMTS may assigning the modems among a plurality of service groups based on the SNR-related metrics. For any one of the modems, the CMTS may configure physical layer communication parameters to be used by the one of the modems based on a SNR-related metric of a service group to which the one of the modems is assigned. The physical layer communication parameters may include one or more of: transmit power, receive sensitivity, timeslot duration, modulation type, modulation order, forward error correction (FEC) type, and FEC code rate. The CMTS and the modems may communicate using orthogonal frequency division multiplexing (OFDM) over a plurality of subcarriers, and the physical layer communication parameters may be determined on a per-subcarrier basis.

Abstract translation: 对于由CMTS服务的多个电缆调制解调器，电缆调制解调器终端系统（CMTS）可以确定相应的多个SNR相关度量。 CMTS可以基于SNR相关度量来分配多个服务组中的调制解调器。 对于任何一个调制解调器，CMTS可以基于调制解调器之一分配到的服务组的与SNR相关的度量来配置物理层通信参数以由调制解调器之一使用。 物理层通信参数可以包括以下中的一个或多个：发射功率，接收灵敏度，时隙持续时间，调制类型，调制阶数，前向纠错（FEC）类型和FEC码率。 CMTS和调制解调器可以在多个子载波上使用正交频分复用（OFDM）进行通信，并且物理层通信参数可以在每个子载波的基础上确定。

公开(公告)号：US09247274B2

公开(公告)日：2016-01-26

申请号：US14154234

申请日：2014-01-14

Applicant: MaxLinear, Inc

Inventor： Sridhar Ramesh ,  Curtis Ling ,  Jingnong Yang

IPC: H04N21/2385 ,  H04N21/61 ,  H04N7/10 ,  H04H20/63 ,  H04H40/90

CPC classification number: H04N21/4383 ,  H04H20/63 ,  H04H40/90 ,  H04N7/106 ,  H04N21/2385 ,  H04N21/615

Abstract: A receiver includes a plurality of input paths for receiving and processing a plurality of input RF signals. The input paths isolate one or more portions of corresponding ones of the received input RF signals, and combine the isolated portions of the corresponding ones of the received input RF signals onto one or more output signals. A bandwidth of the isolated portions of the corresponding ones of the received input RF signals and a bandwidth of the output signals are variable. The isolated portions of the corresponding ones of the received plurality of input RF signals are extracted and utilized to generate the output signals. The portions of the corresponding ones of the received plurality of input RF signals may be mapped into one or more channel slots in the time domain. The channel slots may be assigned in the frequency domain to one or more frequency bins.

Abstract translation: 接收机包括用于接收和处理多个输入RF信号的多个输入路径。 所述输入路径隔离所接收的输入RF信号中相应的一个的一个或多个部分，并且将所接收的输入RF信号中相应的一个的隔离部分组合到一个或多个输出信号上。 所接收的输入RF信号中相应的一个的隔离部分的带宽和输出信号的带宽是可变的。 接收到的多个输入RF信号中相应的一部分的隔离部分被提取并用于产生输出信号。 所接收的多个输入RF信号中相应的部分可被映射到时域中的一个或多个信道时隙。 信道时隙可以在频域中分配给一个或多个频率仓。

公开(公告)号：US09124339B2

公开(公告)日：2015-09-01

申请号：US14245589

申请日：2014-04-04

Applicant: MaxLinear, Inc.

Inventor： Glenn Chang ,  Sridhar Ramesh ,  Curtis Ling

IPC: H04L27/04 ,  H03K9/00 ,  H04B1/16 ,  G06F7/00 ,  H01L25/00

CPC classification number: H04N21/2187 ,  G06F7/00 ,  H01L25/00 ,  H01L2924/0002 ,  H01Q13/206 ,  H01Q21/0012 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04L12/2838 ,  H04L2012/2849 ,  H04N21/2221 ,  H04N21/6118 ,  H04N21/6193 ,  H01L2924/00

Abstract: Methods and systems are provided for loop-through for multi-chip communication systems. Receiver circuitry, that is operable to receive one or more input feeds, may comprise a plurality of chips, each of which may be configurable to generate a corresponding output comprising one or more feed elements (e.g., channels) extracted from the input feed(s). However, only a first chip may be operable to handle reception and/or initial processing of the one or more input feeds, with each one of the remaining chips processing a loop-through feed generated by the first chip, in order to generate the corresponding output of that chip. The first chip generates the loop-through feed based on the one or more input feeds, such as after the initial processing thereof in the first chip. Generating the loop-through feed may comprise applying channelization (e.g., separately for each remaining chip), switching based processing, and/or interfacing based processing.

Abstract translation: 提供了用于多芯片通信系统的循环的方法和系统。 可操作以接收一个或多个输入馈送的接收器电路可以包括多个芯片，每个芯片可以被配置为生成包括从输入馈送提取的一个或多个馈送元件（例如，信道）的相应输出 ）。 然而，仅第一芯片可操作以处理一个或多个输入馈送的接收和/或初始处理，其中每个剩余芯片处理由第一芯片产生的环通馈送，以便产生相应的 该芯片的输出。 第一芯片基于一个或多个输入馈送（例如在第一芯片中的初始处理之后）产生环通馈送。 产生环通馈送可以包括对信道化（例如，针对每个剩余的芯片单独地）进行信道化，基于切换的处理和/或基于接口的处理。

公开(公告)号：US20140293854A1

公开(公告)日：2014-10-02

申请号：US14230070

申请日：2014-03-31

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: H04W52/02

CPC classification number: H04L7/0033 ,  G06F1/3209 ,  G06F1/3234 ,  G06F1/3278 ,  H04L12/2801 ,  H04W52/02 ,  Y02D10/157 ,  Y02D50/20 ,  Y02D70/00 ,  Y02D70/168

Abstract: A CMTS may receive a request that a network device be permitted to enter a power-saving mode of operation. In response, the CMTS may enter a power-saving mode of operation wherein MAC management messages, transmission opportunities for the sleeping network device, and/or contention periods on one or more channels occur at independently determinable intervals. The CMTS may then transmit a message granting the network device permission to enter the power-saving mode of operation. The CMTS may start a sleep timer upon transmitting the MAC management message and may deregister the network device if no communication is received from the network device prior to expiration of the sleep timer. The CMTs may buffer traffic destined for the network device in a buffer of the CMTS while the network device is in the power-saving mode of operation, and may wake the network device upon the amount of buffered traffic reaching a threshold.

Abstract translation: CMTS可以接收允许网络设备进入省电模式的请求。 作为响应，CMTS可以进入功率节省模式，其中MAC管理消息，睡眠网络设备的传输机会和/或一个或多个信道上的争用周期以独立可确定的间隔发生。 然后，CMTS可以发送授权网络设备许可进入节电操作模式的消息。 CMTS可以在发送MAC管理消息时启动睡眠定时器，并且如果在睡眠定时器期满之前没有从网络设备接收到通信，则可以注销网络设备。 当网络设备处于节电操作模式时，CMT可以缓冲在CMTS的缓冲器中的网络设备的流量，并且可以在缓冲流量达到阈值时唤醒网络设备。

公开(公告)号：US20140064420A1

公开(公告)日：2014-03-06

申请号：US14012772

申请日：2013-08-28

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: H04L7/00

CPC classification number: H04L7/00 ,  H04J3/0697 ,  H04L7/0083 ,  H04L12/2801 ,  H04L12/40136 ,  Y02D50/10

Abstract: A network device may comprise one or more circuits including a clock signal generator, an ADC, and a processor. The ADC may digitize a received signal across a range of frequencies that encompasses a first band of frequencies used for a first network and a second band of frequencies used for a second network. A sampling frequency of the ADC may be determined by a frequency of a clock signal output by the clock signal generator. The processor may determine whether the first network is active and whether the second network is active. The processor may configure the clock generator such that, when both of the first network and the second network are active, the clock signal is set to a first frequency, and when the first network is active and the second network is inactive, the clock signal is set to a second frequency.

Abstract translation: 网络设备可以包括一个或多个电路，包括时钟信号发生器，ADC和处理器。 ADC可以在包含用于第一网络的第一频带和用于第二网络的第二频带的频率范围内对接收到的信号进行数字化。 ADC的采样频率可以由时钟信号发生器输出的时钟信号的频率来确定。 处理器可以确定第一网络是否是活动的以及第二网络是否是活动的。 处理器可以配置时钟发生器，使得当第一网络和第二网络都处于活动状态时，时钟信号被设置为第一频率，并且当第一网络有效并且第二网络不活动时，时钟信号 被设置为第二频率。

公开(公告)号：US11502723B2

公开(公告)日：2022-11-15

申请号：US16272345

申请日：2019-02-11

Applicant: Maxlinear, Inc.

Inventor： Sridhar Ramesh

IPC: H04B3/23 ,  H04L5/14 ,  H04L12/28

Abstract: A cable modem comprises transmitter circuitry, receiver circuitry, and memory. Upon power up of the cable modem in the field, the transmitter circuitry transmits one or more first signals into a network. The receiver circuitry measure echoes of the transmitted one or more first signals. The receiver circuitry generates an installation figure of merit based on the measured echoes and factory-calibration echo measurements stored in the memory. The communication device begins DOCSIS® network registration if the installation quality measurement meets a determined requirement and generates a notification to troubleshoot the installation of the communication device if the installation quality measurement does not meet a determined requirement.

公开(公告)号：US11005526B2

公开(公告)日：2021-05-11

申请号：US16358093

申请日：2019-03-19

Applicant: Maxlinear, Inc.

Inventor： Kenneth Scott Walley ,  Steve Krapp ,  Eitan Tsur ,  Sridhar Ramesh

IPC: H04B3/20 ,  H04L5/14

Abstract: An electronic communication device comprises echo cancellation circuitry and signal modification circuitry. The echo cancellation circuitry may be operable to generate a first signal that approximates interference present in a second signal. The signal modification circuitry may be operable to generate a first cancellation signal in a frequency band that is not used on a communication medium over which the electronic communication device is configured to communicate. The signal modification circuitry may be operable to combine the first cancellation signal with the first signal, wherein the combining of the signals results in a modified first signal that has a lower crest factor and/or peak-to-average power ratio than the first signal. The signal modification circuitry may be operable to combine the modified first signal with the second signal to reduce interference present in the second signal.

公开(公告)号：US20190157756A1

公开(公告)日：2019-05-23

申请号：US16194320

申请日：2018-11-17

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Sridhar Ramesh

IPC: H01Q3/26 ,  H01Q3/42 ,  H01Q21/00

Abstract: Systems and methods are provided for distortion redirection in phased arrays. In an electronic device configured for transmission and reception of signals and having a two-dimensional phased array, effects of distortion, corresponding to at least one processing function applied during communication of signals, on the communication of signals may be assessed, and based on the effects of distortion, one or more adjustments for mitigating the effects of distortion may be configured and applied during processing of signals. Assessing the effects of distortion may include determining one or more characteristics associated with the communication of the signals, where the one or more characteristics relate and/or are subject to the effects of the distortion, and assessing the effects of distortion based on the one or more characteristics.