Here we present the results of tha consumption for sending SMSs.
Power consumption when sending SMS using GSM and UMTS networks.
Number of tests:
During the measurements the other air interfaces (BT and WLAN) are switched off.
Text messages sent by using SMS can be encoded in different ways: the default GSM 7-bit alphabet, the 8-bit data alphabet, and the 16-bit UTF-16/UCS-2 alphabet. Depending on which alphabet the text is coded with, the maximum size per SMS is 160 7-bit characters, 140 8-bit characters, or 70 16-bit characters. It is possible to send longer texts by concatenating more messages with each other.
The Figure below shows the results of measurements done by sending messages of different sizes to evaluate how energy consumption is related to the length of the text. The messages were sent using both GSM and UMTS with a SIM card from TeliaSonera in Oulu, Finland.