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1. 发明授权

US08443270B2 Multiple input hardware reuse using LDPC codes 有权
标题翻译：使用LDPC码的多输入硬件重用
公开(公告)号：US08443270B2
公开(公告)日：2013-05-14
申请号：US12331292
申请日：2008-12-09
申请人： Shaw Yuan , Arndt Mueller , Brian Eidson
发明人： Shaw Yuan , Arndt Mueller , Brian Eidson
IPC分类号： G06F11/00
CPC分类号： H04L1/0052 , H03M13/1105 , H03M13/116 , H03M13/3761 , H03M13/6561 , H04L1/005 , H04L1/0057 , H04L27/2647
摘要： A network controller receives data substantially simultaneously from multiple client nodes. The network controller assigns to each client node one or more sub-carriers of an orthogonal frequency-division multiplexing access frequency spectrum. The client nodes transmit substantially simultaneously M LDPC codewords that are encoded in a parity check matrix so that the number of rows m′ depend on the code rate and are mapped on its assigned sub-carriers. The network controller computes a bit log-likelihood ratio for each received bit of the codewords and arranges the bit LLR by codeword to align with an equivalent parity check matrix. The network controller decodes the codewords with the equivalent parity check matrix.
摘要翻译：网络控制器从多个客户端节点基本上同时接收数据。网络控制器向每个客户端节点分配正交频分复用接入频谱的一个或多个子载波。客户端节点基本同时发送以奇偶校验矩阵编码的M个LDPC码字，使得行数m'取决于码率，并映射到其分配的子载波上。网络控制器为码字的每个接收比特计算比特对数似然比，并通过码字排列比特LLR以与等效奇偶校验矩阵对准。网络控制器用等效奇偶校验矩阵来解码码字。

2. 发明申请

US20100146361A1 Multiple input hardware reuse using LDPC codes. 有权
标题翻译：使用LDPC码的多输入硬件重用。
公开(公告)号：US20100146361A1
公开(公告)日：2010-06-10
申请号：US12331292
申请日：2008-12-09
申请人： Shaw Yuan , Arndt Mueller , Brian Eidson
发明人： Shaw Yuan , Arndt Mueller , Brian Eidson
IPC分类号： H03M13/11 , G06F11/10
CPC分类号： H04L1/0052 , H03M13/1105 , H03M13/116 , H03M13/3761 , H03M13/6561 , H04L1/005 , H04L1/0057 , H04L27/2647
摘要： A network controller receives data substantially simultaneously from multiple client nodes. The network controller assigns to each client node one or more sub-carriers of an orthogonal frequency-division multiplexing access frequency spectrum. The client nodes transmit substantially simultaneously M LDPC codewords that are encoded in a parity check matrix so that the number of rows m′ depend on the code rate and are mapped on its assigned sub-carriers. The network controller computes a bit log-likelihood ratio for each received bit of the codewords and arranges the bit LLR by codeword to align with an equivalent parity check matrix. The network controller decodes the codewords with the equivalent parity check matrix.
摘要翻译：网络控制器从多个客户端节点基本上同时接收数据。网络控制器向每个客户端节点分配正交频分复用接入频谱的一个或多个子载波。客户端节点基本同时发送以奇偶校验矩阵编码的M个LDPC码字，使得行数m'取决于码率，并映射到其分配的子载波上。网络控制器为码字的每个接收比特计算比特对数似然比，并通过码字排列比特LLR以与等效奇偶校验矩阵对准。网络控制器用等效奇偶校验矩阵来解码码字。

3. 发明授权

US08418036B2 Method and apparatus for performing forward error correction in an orthogonal frequency division multiplexed communication network 有权
标题翻译：在正交频分复用通信网络中执行前向纠错的方法和装置
公开(公告)号：US08418036B2
公开(公告)日：2013-04-09
申请号：US12581063
申请日：2009-10-16
申请人： Shaw Yuan , Arndt Mueller
发明人： Shaw Yuan , Arndt Mueller
IPC分类号： H03M13/00
CPC分类号： H04L1/0041 , H04L1/0057
摘要： According to some embodiments of the disclosed method and apparatus, systems and methods are provided that utilize extra payload capacity present in a symbol pad of a PHY payload to decrease the coding rate of an FEC coding scheme without increasing the symbol rate or decreasing the PHY rate of a corresponding data transmission. If a symbol pad length that would result from encoding a MAC frame using a default coding scheme would be at least as great as a parity length of the default coding scheme, and a new coding scheme maintaining the same parity length but having a reduced information bit length may be determined and used to encode the MAC frame. Owing the reduced information bit length, the new coding scheme has a reduced coding rate, but maintains the same number of OFDM symbols as the default coding scheme.
摘要翻译：根据所公开的方法和装置的一些实施例，提供了利用存在于PHY有效负载的符号焊盘中的额外有效载荷能力来降低FEC编码方案的编码率而不增加符号率或降低PHY速率的系统和方法的相应数据传输。如果使用默认编码方案对MAC帧进行编码而产生的符号衬垫长度将至少与默认编码方案的奇偶校验长度一样大，并且保持相同奇偶校验长度但具有减小的信息位的新编码方案可以确定长度并用于对MAC帧进行编码。由于减少的信息比特长度，新的编码方案具有降低的编码率，但是与默认编码方案保持相同数量的OFDM符号。

4. 发明授权

US09923652B2 Frequency band selection for multiple home networks 有权
公开(公告)号：US09923652B2
公开(公告)日：2018-03-20
申请号：US13584541
申请日：2012-08-13
申请人： Ronald B. Lee , Edward Warner , Changwen Liu , Shaw Yuan
发明人： Ronald B. Lee , Edward Warner , Changwen Liu , Shaw Yuan
IPC分类号： H04L12/50 , H04H20/63
CPC分类号： H04H20/63
摘要： A network-capable device is configured to: automatically detect the presence of a MoCA network (or other network, depending on the network protocol in the application environment), and configure itself for communication on that network at the appropriate communication frequencies. The network-capable device can be configured to create a new network (e.g., a new MoCA network) if there is no network broadcast signal within a band. Preferably, the network-capable device requires little or no user intervention to configure itself for operation at network operating frequencies or to create a new network where none is detected.

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