Patent ID: 8468200
Filing Date: 2013-06-18
Classification: H04L

Abstract:
1. A method for retransmission admission in a Multimedia over Coax Alliance (MoCA) network having a network controller node and a plurality of associated network nodes, the method comprising: a) receiving in the network controller node a Level 2 Management Entity (L2ME) payload submission requesting creation of or update to a parameterized quality of service to support a retransmission flow; b) the network controller node sending a request L2ME frame message to a first plurality of nodes in the network to request information from the first plurality of nodes regarding whether the retransmission flow can be supported; c) the network controller node receiving L2ME payload responses from the first plurality of nodes, wherein each response comprises information regarding whether its respective node can support the retransmission flow; and d) the network controller node determining whether the retransmission flow can be supported by the first plurality of network nodes based on a cost of flow as a measure of specific bandwidth required to support the retransmission flow, wherein the cost of flow is calculated as where T8 is a minimum packet size, NTXPS is a total number of flow transmissions per second, NF is a number of bytes transmitted per flow transmission, OFDMB is a number of bits per Orthogonal Frequency Division Multiplexing (OFDM symbol), TCP is a cyclic prefix length, TFFT is an Inverse Fast Fourier Transform/ Fast Fourier Transform (IFFT/FFT)period, TIFG is an Inter-Frame Gap (IFG) period and TPRE is a length of the preamble per packet.