Abstract: An apparatus includes a first wireless interface that includes a first antenna and a second wireless interface that includes a second antenna. The apparatus is configured to, in a first mode, exchange data with a first wireless access point using both the first wireless interface and the second wireless interface. The apparatus is configured to, in a second mode, (i) exchange data with the first wireless access point using the first wireless interface but not the second wireless interface, and (ii) scan for a second wireless access point using the second wireless interface.

Abstract: A method of operating a wireless device having a first radio interface and a second radio interface. The method includes: using the first radio interface to transfer data between i) the wireless device and ii) a first access point; and using the second radio interface to transfer data between i) the wireless device and the first access point. While continuing to use the first radio interface to transfer data between i) the wireless device and ii) the first access point: suspending the transfer of data between i) the wireless device and ii) the first access point through the second radio interface; for a predetermined time period, using the second radio interface to search for a second access point; and in response to expiration of the predetermined time period, resuming the transfer of data between i) the wireless device and ii) the first access point through the second radio interface.

Abstract: A method and system for implementing a background scan in a wireless device having at least two independent radio interfaces is disclosed. Aspects of the exemplary embodiment include using a first one of the radio interfaces for transferring data with an access point; and simultaneously using a second one of the radio interfaces for receiving scan data to search for a new access point.

Abstract: A network interface includes a control module and a transmit module. The control module reads a segment of a packet and stores the segment in memory of the network interface when a size of the packet is greater than a size of the memory. The control module generates a partial checksum for the packet based on the segment. The control module reads a remainder of the packet at a first time and updates the partial checksum based on the remainder to generate a final checksum for the packet. The control module reads the remainder at a second time, where the second time is subsequent to the first time. The transmit module transmits the segment from the memory and transmits the remainder read at the second time.