Rate adaptation for WiFi based wireless sensor devices

An apparatus for wireless communication comprising:

• means for storing parameters of communication packets successfully transmitted and received by a wireless device prior to turning off the wireless device;
• means for comparing a first set of parameters of a current communication signal received after turning on the wireless device to the parameters of the received communication packets stored prior to turning off the wireless device;
• means for identifying at least one received communication packet of the received communication packets stored prior to turning off the wireless device based on the comparison of the first set of parameters;
• means for comparing a received signal strength indicator (RSSI) and carrier to interference-plus-noise ratio (CINR) of the current communication signal received after turning on the wireless device to an RSSI and CINR of the identified at least one received communication packet to identify a close received communication packet of the identified at least one received communication packet;
• and
• means for identifying a communication rate for current packets communicated by the wireless device based on the comparison of the RSSI and CINR of the current communication signal to the RSSI and CINR of the identified at least one received communication packet.

An apparatus for wireless communication, comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured:
• to store parameters of communication packets successfully transmitted and received by a wireless device prior to turning off the wireless device;
• to compare a first set of parameters of a current communication signal received after turning on the wireless device to the parameters of the received communication packets stored prior to turning off the wireless device;
• to identify at least one received communication packet of the received communication packets stored prior to turning off the wireless device based on the comparison of the first set of parameters;
• to compare a received signal strength indicator (RSSI) and carrier to interference-plus-noise ratio (CINR) of the current communication signal received after turning on the wireless device to an RSSI and CINR of the identified at least one received communication packet to identify a close received communication packet of the identified at least one received communication packet;
• and
• to identify a communication rate for current packets communicated by the wireless device based on the comparison of the RSSI and CINR of the current communication signal to the RSSI and CINR of the identified at least one received communication packet.