Patent ID: 9635668
Date: 2017-04-25
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method comprising: setting by a base station a first value of an indicator in a first subframe i of a radio frame n and setting a second value of the indicator in a second subframe j of the same radio frame n to encode a Time Division Duplex (TDD) configuration, the TDD configuration defining uplink, downlink and special subframes for radio frames; transmitting by the base station the TDD configuration to a mobile station in communication system; determining by the mobile station the first value of the indicator in the first subframe i and the second value of the indicator in the second subframe j and determining the TDD configuration based on a code point which is composed by the determined first and second value of the indicator, wherein the indicator is a control format indicator, CFI, intended to be used in a downlink or special subframe for indicating a control region length in said downlink or special subframe and wherein i=1 and j=6 out of subframes 0-9 of the radio frame n.