US 2016/0081104 A1 · Adaptive Scheduling of Voice Traffic in a Multi-Carrier Communication Environment

Abstract

The present invention provides a technique for scheduling data, and in particular, scheduling real-time or voice data for transmissions during a transmit time interval in a multi-carrier communication environment. For each transmit time interval, channel condition indicia for multiple users is determined, and an iterative scheduling process is then implemented based in part on the channel condition indicia. The iterative scheduling initially pre-assigns select tones for each of the remaining users that have not been permanently assigned tones for the given transmit time interval. Next, the remaining user having the least favorable channel conditions is selected as an active user. The newly selected active user is then permanently assigned the select tones that were initially pre-assigned to that particular user. The permanently assigned tones are removed from consideration, and the process is repeated until all the remaining users are permanently assigned unique tones for scheduling.

Claims20

Dependent claims

A method for scheduling data for transmission during a transmit time interval in a wireless multi-carrier communication environment, the method comprising:

for a transmit time interval:
assigning at least one respective tone from a plurality of tones to each mobile terminal of a plurality of mobile terminals, wherein the assigned at least one respective tone is different for each mobile terminal;
selecting, from the plurality of mobile terminals, an active mobile terminal based at least in part on a predetermined indicator of channel conditions;
excluding the active mobile terminal from the plurality of mobile terminals, leaving one or more remaining mobile terminals of the plurality of mobile terminals;
excluding the at least one respective tone assigned to the active mobile terminal from the plurality of tones, leaving available tones of the plurality of tones;
and
assigning at least one respective tone from the available tones to at least one mobile terminal of the remaining mobile terminals.

4 more elements

A base station comprising:

a wireless communication interface;
and
control circuitry interoperating with the wireless communication interface to wirelessly transmit data during a transmit time interval in a wireless multi-carrier communication environment, wherein the control circuitry is configured to perform the following for the transmit time interval:
assign at least one tone from a plurality of tones to a first mobile terminal of a plurality of mobile terminals;
remove the first mobile terminal from consideration based at least in part on a predetermined indicator of respective channel conditions associated with the plurality of mobile terminals, wherein a group of remaining mobile terminals of the plurality of mobile terminals excludes the first mobile terminal;
remove the at least one tone assigned to the first mobile terminal from consideration, wherein a group of available tones of the plurality of tones excludes the at least one tone assigned to the first mobile terminal;
and
assign at least one tone from the group of available tones to a second mobile terminal of the group of remaining mobile terminals.

5 more elements

Dependencies are inferred from the claim text.

Adaptive Scheduling of Voice Traffic in a Multi-Carrier Communication Environment

Life of this patent

Adaptive Scheduling of Voice Traffic in a Multi-Carrier Communication Environment

Life of this patent

Abstract

Claims20