Patent ID: 8130682

Claim:
A method of assigning mobile users in a half-frequency division duplex (HFDD) system to a first UL group and a second UL group of an uplink (UL) sub-frame, and to a first DL group and a second DL group of a downlink (DL) sub-frame, the UL sub-frame being assigned a first carrier frequency and the DL sub-frame being assigned a second carrier frequency, the method comprising: for each mobile user of a plurality of mobile users, determining a type of data; for each mobile user, determining a receive CINR (carrier interference plus noise ratio) of the mobile user; for each mobile user, determining a Doppler frequency parameter; assigning the plurality of mobile users to the first UL group, the second UL group, the first DL group and the second DL group based on time durations of the first UL group, the second UL group, the first DL group and the second DL group, and based on at least one of the CINR, Doppler frequency spread of the mobile user, and a number of mobile users previously assigned to the first UL group, the second UL group, the first DL group and the second DL group.