Patent ID: 9065645
Filing Date: 2015-06-23
Classification: H04L

Abstract:
1. A method of operating a base station to provide acknowledgment information for radio communication devices in a time division multiple access (TDMA) wireless communication system, the method comprising: receiving a plurality of units of data, each unit of data respectively transmitted by one of a plurality of radio communication devices on one of a plurality of predetermined communication TDMA slot positions of a first channel; generating a control message to include acknowledgment information having a plurality of time-division positional acknowledgment indicators and an acknowledgment position mapping information, wherein each time-division positional acknowledgment indicator respectively indicates an acknowledgment corresponding to the unit of data transmitted on a respective one of the plurality of predetermined communication TDMA slot positions of the first channel, and wherein the acknowledgment position mapping information maps a position of each time-division positional acknowledgment indicator to a position of each predetermined communication TDMA slot position within the plurality of predetermined communication TDMA slot positions of the first channel; and transmitting the control message including the acknowledgment information having the plurality of time-division positional acknowledgment indicators on one communication TDMA slot position of a second channel; wherein the control message further includes scheduling information for scheduling new transmissions or retransmissions from one or more radio communication devices on future TDMA slot positions of the first channel; wherein the scheduling information schedules “n” number of future communication TDMA slot positions on the first channel; and wherein the time-division positional acknowledgment indicators indicates an acknowledgment of an integer multiple of “n” number of past communication TDMA slot positions on the first channel.