Systems and methods for flow control of a remote transmitter

摘要

Systems and methods are provided to enable a near-end receiver to control the far-end transmitter's data transmission such that the near-end receiver's TC data buffers do not overflow. In an embodiment, a high waterline and low waterline implemented into a near-end receiver are used to determine when the near-end receiver's TC data buffers are near maximum capacity. In an embodiment, the near-end receiver transmits a Packet Transfer Mode (PTM) All Idle Out Of Sync (AIOOS) codeword to the far-end transmitter when the high waterline is reached, and the near-end receiver stops transmitting the AIOOS codeword when the low waterline is reached.

主权项

1. A first modem, comprising:
a buffer including:
a first pointer, anda second pointer; and a synchronization module configured to:
determine, based on the first pointer and the second pointer, a fullness of the buffer;determine whether the fullness of the buffer exceeds a waterline, wherein the waterline is configured based on an expected time required for a second modem to respond to a codeword generated by the first modem, andin response to determining that the fullness of the buffer exceeds the waterline, initiate a transmission of the codeword.