公开(公告)号：US20140146758A1

公开(公告)日：2014-05-29

申请号：US14052858

申请日：2013-10-14

Applicant: Sony Corporation

Inventor： Martin LOVELL ,  Lothar STADELMEIER

IPC: H04W72/14 ,  H04W72/12

CPC classification number: H04L5/0007 ,  H04L1/0041 ,  H04L1/0075 ,  H04L5/0039 ,  H04L5/0046 ,  H04L5/0064 ,  H04L5/0091 ,  H04L5/0094 ,  H04L12/6418 ,  H04L27/2602

Abstract: A receiver receives payload data transmitted on a downstream using Orthogonal Frequency Division Multiplexed (OFDM) symbols via a cable network. The receiver includes circuitry configured to receive a downstream signal representing the payload data modulated onto one or more OFDM symbols, and to demodulate the OFDM symbols of each frame to detect and to recover the payload data using the physical layer signalling data. One or more of the frames of the received signal includes a preamble of the frame providing the physical layer signalling data, and in a separate media access control (MAC) signal within the frame, upstream messages relating to the transmission of data from the receiver to the transmitter. Accordingly, an arrangement is provided for a cable network communications system in which a capacity for upstream signalling messages for communicating on the downstream can be adapted to a requirement of receivers connected to the network.

Abstract translation: 接收机通过有线网络使用正交频分复用（OFDM）符号在下游接收有效载荷数据。 接收机包括被配置为接收表示在一个或多个OFDM符号上调制的有效载荷数据的下行信号的电路，以及解调每个帧的OFDM符号以使用物理层信令数据来检测和恢复有效载荷数据。 接收信号的一个或多个帧包括提供物理层信令数据的帧的前导码，并且在该帧内的单独的媒体访问控制（MAC）信号中，与从接收机到数据的传输有关的上行消息 发射机。 因此，提供了一种用于有线网络通信系统的布置，其中用于在下游进行通信的上行信令消息的容量可以适应于连接到网络的接收机的需求。