-
公开(公告)号:US20130243011A1
公开(公告)日:2013-09-19
申请号:US13887612
申请日:2013-05-06
Applicant: BROADCOM CORPORATION
Inventor: Gottfried Ungerboeck , Scott Powell
IPC: H04L12/24
CPC classification number: H04L41/08 , H04L12/403
Abstract: Certain aspects for the start-up procedure of transceivers supporting higher data rates over twisted-pair copper cabling are provided for 10 Gbit/sec Ethernet links (10 GBASE-T). During a PMA (physical medium attachment) training period of the start-up procedure, long PMA training frames are exchanged periodically between link partners. A significant portion of each PMA training frame consists of known pseudo random sequences simultaneously transmitted over four wire pairs. PMA training frames include an InfoField for exchanging parameters and control information between link partners. For example, the InfoField's payload comprises fields for indicating current transmit power backoff (PBO), next PBO, requested PBO, transition count, control information, and for communicating precoder coefficients. Information in InfoFields is repeated and is not necessary that a link partner decodes every InfoField. For example, by occasionally reading the transition count, a link partner can determine when a change in transmit PBO and/or a state transition is to occur.
Abstract translation: 为10 Gbit / s以太网链路(10 GBASE-T)提供了通过双绞铜缆布线支持更高数据速率的收发器的启动过程的某些方面。 在启动程序的PMA(物理介质附加)训练期间,长链PMA训练帧在链路伙伴之间定期交换。 每个PMA训练帧的重要部分由通过四个线对同时传输的已知伪随机序列组成。 PMA培训框架包括用于在链接伙伴之间交换参数和控制信息的InfoField。 例如,InfoField的有效载荷包括用于指示当前发送功率回退(PBO),下一个PBO,所请求的PBO,转移计数,控制信息以及用于传达预编码器系数的字段。 InfoFields中的信息被重复,链接伙伴不需要对每个InfoField进行解码。 例如,通过偶尔读取转换计数,链路伙伴可以确定何时发生传输PBO和/或状态转换的变化。
-
2.
公开(公告)号:US08774300B2
公开(公告)日:2014-07-08
申请号:US13923453
申请日:2013-06-21
Applicant: Broadcom Corporation
Inventor: Bruce J. Currivan , Thomas J. Kolze , Daniel H. Howard , Gottfried Ungerboeck
IPC: H04L27/28
CPC classification number: H04L27/3411 , H04B1/71 , H04B1/7107 , H04B7/216 , H04L25/03038 , H04L25/03343 , H04L25/49 , H04L27/3405 , H04L2025/03375 , H04L2025/03477 , H04N7/17309 , H04N21/42676
Abstract: Signal processing under attenuated transmission conditions. Within an orthogonal signal space, the number of orthogonal signals that are used to transmit information from a transmitter to a receiver is reduced and the transmitted power of each of the now remaining orthogonal signals is modified; this may involve increasing the power of all of the remaining orthogonal signals equally or alternatively modifying them individually. The same modulation used before the reduction may also be used afterwards; within communication systems having multiple transmitter-receiver paths, this will ensure that the communication system's throughput and efficiency will remain unchanged even when one (or more) transmitter-receiver paths are highly attenuated. In addition, robust mode operation is provided for ranging and registering of transmitter devices when entering the communication system. In addition, the unused orthogonal signals may be employed to support interference cancellation of those orthogonal signals that are used to transmit information.
Abstract translation: 衰减传输条件下的信号处理。 在正交信号空间内,减少了用于从发射机向接收机发送信息的正交信号的数量,并且修改了现在剩余的正交信号中的每一个的发射功率; 这可能涉及增加所有剩余的正交信号的功率,或者可以分别修改它们。 在还原之前使用的相同调制也可以随后使用; 在具有多个发射机 - 接收机路径的通信系统内,即使当一个(或多个)发射机 - 接收机路径被高度衰减时,这将确保通信系统的吞吐量和效率将保持不变。 另外,提供鲁棒模式操作,用于在进入通信系统时测距和注册发射机设备。 此外,可以采用未使用的正交信号来支持用于发送信息的那些正交信号的干扰消除。
-
公开(公告)号:US08654786B2
公开(公告)日:2014-02-18
申请号:US13887612
申请日:2013-05-06
Applicant: Broadcom Corporation
Inventor: Gottfried Ungerboeck , Scott Powell
CPC classification number: H04L41/08 , H04L12/403
Abstract: Certain aspects for the start-up procedure of transceivers supporting higher data rates over twisted-pair copper cabling are provided for 10 Gbit/sec Ethernet links (10GBASE-T). During a PMA (physical medium attachment) training period of the start-up procedure, long PMA training frames are exchanged periodically between link partners. A significant portion of each PMA training frame consists of known pseudo random sequences simultaneously transmitted over four wire pairs. PMA training frames include an InfoField for exchanging parameters and control information between link partners. For example, the InfoField's payload comprises fields for indicating current transmit power backoff (PBO), next PBO, requested PBO, transition count, control information, and for communicating precoder coefficients. Information in InfoFields is repeated and is not necessary that a link partner decodes every InfoField. For example, by occasionally reading the transition count, a link partner can determine when a change in transmit PBO and/or a state transition is to occur.
Abstract translation: 为10Gbit /秒以太网链路(10GBASE-T)提供了通过双绞铜缆布线支持更高数据速率的收发器的启动过程的某些方面。 在启动程序的PMA(物理介质附加)训练期间,长链PMA训练帧在链路伙伴之间定期交换。 每个PMA训练帧的重要部分由通过四个线对同时传输的已知伪随机序列组成。 PMA培训框架包括用于在链接伙伴之间交换参数和控制信息的InfoField。 例如,InfoField的有效载荷包括用于指示当前发送功率回退(PBO),下一个PBO,所请求的PBO,转移计数,控制信息以及用于传达预编码器系数的字段。 InfoFields中的信息被重复,链接伙伴不需要对每个InfoField进行解码。 例如,通过偶尔读取转换计数,链路伙伴可以确定何时发生传输PBO和/或状态转换的变化。
-
公开(公告)号:US20140003545A1
公开(公告)日:2014-01-02
申请号:US13923453
申请日:2013-06-21
Applicant: BROADCOM CORPORATION
Inventor: Bruce J. Currivan , Thomas J. Kolze , Daniel H. Howard , Gottfried Ungerboeck
IPC: H04L27/34
CPC classification number: H04L27/3411 , H04B1/71 , H04B1/7107 , H04B7/216 , H04L25/03038 , H04L25/03343 , H04L25/49 , H04L27/3405 , H04L2025/03375 , H04L2025/03477 , H04N7/17309 , H04N21/42676
Abstract: Signal processing under attenuated transmission conditions. Within an orthogonal signal space, the number of orthogonal signals that are used to transmit information from a transmitter to a receiver is reduced and the transmitted power of each of the now remaining orthogonal signals is modified; this may involve increasing the power of all of the remaining orthogonal signals equally or alternatively modifying them individually. The same modulation used before the reduction may also be used afterwards; within communication systems having multiple transmitter-receiver paths, this will ensure that the communication system's throughput and efficiency will remain unchanged even when one (or more) transmitter-receiver paths are highly attenuated. In addition, robust mode operation is provided for ranging and registering of transmitter devices when entering the communication system. In addition, the unused orthogonal signals may be employed to support interference cancellation of those orthogonal signals that are used to transmit information.
-
-
-