Dynamically controlling a local buffer of a modem of a wireless device

A modem of a wireless device, comprising:

• a local buffer;
• an RF wireless communication chain;
• a controller, the controller operative to:
• receive packets in the local buffer for wireless transmission through the RF wireless communication chain to a receiving device;
• purge a transmission packet from the local buffer after receiving an acknowledgement of reception of the transmission packet from the receiving device;
• request acknowledgement from the receiving device when a queue of the transmission packets within the local buffer exceeds a threshold level;
• and
• wherein a time delay is introduced after the queue of the transmission packets exceeds the threshold level and before the requesting of the acknowledgement, wherein the time delay is based at least on a propagation delay of the wireless transmission between the wireless device and the receiving device, a time in which the threshold level is exceeded, and timing of multicast/broadcast acknowledgment transmissions;
• wherein the receiving device is configured to:
• collect acknowledgements for scheduled uplink communication in a frame and sub-carrier frequency range within a time window used for collection of acknowledgements of scheduled uplink communication;
• create a broadcast packet that includes acknowledgement of successfully receiving uplink communication packets in the frame and sub-carrier frequency range;
• and
• broadcast the broadcast packet at a set time delay from completion of the time window used for collection of the acknowledgements of the scheduled uplink communication.

A wireless system, comprising:

• a base station comprising a receiver;
• a hub operative to report information to the base station, the hub comprising:
• a local buffer;
• an RF wireless communication chain;
• and
• a controller, the controller operative to:
• receive packets in the local buffer for wireless transmission through the RF wireless communication chain to the base station;
• purge a transmission packet from the local buffer after receiving an acknowledgement of reception of the transmission packet from the base station;
• request acknowledgement from the base station when a queue of the transmission packets within the local buffer exceeds a threshold level;
• and
• wherein a time delay is introduced after the queue of the transmission packets exceeds the threshold level and before the requesting of the acknowledgement, wherein the time delay is based at least on a propagation delay of the wireless transmission between the wireless device and the receiving device, a time in which the threshold level is exceeded, and timing of multicast/broadcast acknowledgment transmissions;
• wherein the receiving device is configured to:
• collect acknowledgements for scheduled uplink communication in a frame and sub-carrier frequency range within a time window used for collection of acknowledgements of scheduled uplink communication;
• create a broadcast packet that includes acknowledgement of successfully receiving uplink communication packets in the frame and sub-carrier frequency range;
• and
• broadcast the broadcast packet at a set time delay from completion of the time window used for collection of the acknowledgements of the scheduled uplink communication.