Reducing superfluous traffic in a network

摘要

In one embodiment the modem has a network interface, application interface, processor, and memory. The network interface exchanges radio data with a network. The application (or host) interface exchanges application data with an application (or host) processor. The processor converts a unit of radio data to a corresponding unit of application data. The memory stores each unit of application data received by the modem. The processor is configured to execute a selective discard function to reduce traffic by determining if a newly arrived unit of application data is a duplicate of a stored unit of application. In the case that the newly arrived unit of application data is a duplicate of the stored unit of application data, the processor is further configured to selectively discard the duplicate unit of application data in dependence on whether an acknowledgement of the data has been already recognized by the processor.

主权项

1. A method of reducing traffic transmission between a modem of a mobile terminal and a host processor separate from the modem, the method comprising:
receiving, by the modem from a wireless network via a wireless interface coupled to the wireless network, a unit of data at the radio link control (RLC) level; converting, by a processor in the modem, the RLC level unit of data to a transport control protocol (TCP) unit of data; determining, by the modem, if the newly arrived TCP unit of data is a duplicate of an earlier received TCP unit of data, wherein, if the newly arrived TCP unit of data is not determined to be a duplicate of the earlier received TCP unit of data, the newly arrived TCP unit of data is sent to the host processor over an interface that is not part of the wireless network; if the newly arrived TCP unit of data is determined to be a duplicate of the earlier received TCP unit of data, determining, by the modem, if an acknowledgement of the earlier received TCP unit of data has been received by the modem from the host processor over the interface that is not part of the wireless network, wherein, if the acknowledgement of the earlier received TCP unit of data has not been received by the modem, the newly arrived TCP unit of data is sent to the host processor over the interface that is not part of the wireless network; and if the newly arrived TCP unit of data is determined to be a duplicate of the earlier received TCP unit of data and the acknowledgement of the earlier received TCP unit of data has been received by the modem, discarding the newly arrived TCP unit of data.