Patent ID: 8837317
Filing Date: 2014-09-16
Classification: H04L,H04W

Abstract:
1. In a radio access network (RAN) device of a wireless communication system, a method comprising: receiving a request to set up a communication session with an access terminal; determining from a record of particular previous communication sessions of the access terminal that there is greater than a threshold likelihood that the requested communication session will include a set of handoffs among a plurality of wireless coverage zones that matches a recurrent handoff pattern in the particular previous communication sessions; determining a respective transmission rate supported by a respective air interface between the access terminal and each respective wireless coverage zone of the plurality; determining a single, common coding rate for all of the respective air interfaces based on a comparison of the determined respective transmission rates; if (i) the common coding rate is below a threshold rate, and (ii) at least a threshold fraction of the particular previous communication sessions used a coding rate below the threshold rate, then selecting a current coding rate that is greater than the common coding rate; if at least (iii) the common coding rate is not below the threshold rate, or (iv) less than the threshold fraction of the particular previous communication sessions used a coding rate below the threshold rate, then selecting the current coding rate equal to the common coding rate; and transmitting an instruction to the access terminal to use the selected current coding rate for air-interface communications for a duration of the communication session.