Patent ID: 8891434
Filing Date: 2014-11-18
Classification: H04B,H04L,H04W

Abstract:
1. A system for efficient control signaling over shared communication channels, the system comprising: a gateway configured to encode and to transmit a plurality of physical layer headers, wherein: the plurality of physical layer headers include at least a first physical layer header for a first terminal and a second physical layer header for a second terminal, wherein: the first physical layer header spans a first length and includes information representing a first modcode; the second physical layer header spans a second length and includes information representing a second modcode, wherein the second length is longer than the first length; and the first physical layer header is of insufficient length for the second terminal to determine the first modcode associated with the first physical layer header; and each physical layer header of the plurality of physical layer headers includes a plurality of modcode partitions, wherein: each modcode partition is associated with a respective modcode point associated with a respective physical layer header, wherein each modcode point represents at least a modulation, a code rate, and a spreading factor; and the plurality of modcode partitions of the respective physical layer header are distributed within a data frame associated with the physical layer header; and a plurality of terminals, in wireless communication with the gateway via satellite, wherein the plurality of terminals are configured to: receive a digitized stream including the data frame; and decode the physical layer header associated with the data frame to determine the modcode point associated with the data frame.