Patent ID: 7649868
Filing Date: 2010-01-19
Classification: H04L

Abstract:
1. An apparatus for evaluating a wireless link between a transmitter and a first receiver in a multiple access wireless communications system, wherein said transmitter is transmitting information intended for a first receiver in a first transmission mode and information intended for a second receiver in a second transmission mode that is different from said first transmission mode, the apparatus comprising: means for receiving information that is intended for the second receiver and that is transmitted in said second transmission mode; means for obtaining, at said first receiver, an error measure for said information that is received at said first receiver and intended for said second receiver; means for determining if said second transmission mode is an acceptable transmission mode at least in part based on said error measure obtained for said information that is received at said first receiver and intended for said second receiver; and means for determining if said second transmission mode should be used for subsequent transmissions of information frames that is intended for said first receiver only if said second transmission mode is determined to be acceptable, said means for determining if said second transmission mode should be used for subsequent frame transmissions comprising: