Efficient bandwidth utilization for communication systems

A system comprising:

• one or more computers and one or more storage devices storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising:
• receiving, by the one or more computers, a transmission from each of multiple terminals through a communication network;
• determining, by the one or more computers, separate timing offsets for the multiple terminals, wherein, for the each of the multiple terminals, the timing offset for the terminal is based on the transmission received from the terminal;
• determining, by the one or more computers, separate aperture window sizes for the multiple terminals, wherein, for the each of the multiple terminals, the aperture window size for the terminal (i) is determined based on the timing offset determined for the terminal and (ii) specifies a size of an aperture window that provides a time range to search for an identifier that specifies a beginning of a data burst in a transmission from the terminal;
• generating, by the one or more computers, allocation data that assigns communication resources to the multiple terminals, wherein the assignment of the communication resources sets a timing of data bursts to account for utilization of different aperture window sizes for different terminals of the multiple terminals, with the communication resources being assigned based on the separate aperture window sizes determined for the multiple terminals;
• and
• communicating, by the one or more computers, with the multiple terminals to indicate the communication resources respectively allocated to the multiple terminals.

One or more non-transitory computer-readable media storing software comprising instructions that are executable by one or more computers to cause the one or more computers to perform operations comprising:

• receiving, by the one or more computers, a transmission from each of multiple terminals through a communication network;
• determining, by the one or more computers, separate timing offsets for the multiple terminals, wherein, for the each of the multiple terminals, the timing offset for the terminal is based on the transmission received from the terminal;
• determining, by the one or more computers, separate aperture window sizes for the multiple terminals, wherein, for the each of the multiple terminals, the aperture window size for the terminal (i} is determined based on a timing offset determined for the terminal and (ii) specifies a size of an aperture window that provides a time range to search for an identifier that specifies a beginning of a data burst in a transmission from the terminal;
• generating, by the one or more computers, allocation data that assigns communication resources to the multiple terminals, wherein the assignment of the communication resources sets a timing of data bursts to account for utilization of different aperture window sizes for different terminals of the multiple terminals, with the communication resources being assigned based on the separate aperture window sizes determined for the multiple terminals;
• and
• communicating, by the one or more computers, with the multiple terminals to indicate the communication resources respectively allocated to the multiple terminals.