Patent ID: 9106351
Filing Date: 2015-08-11
Classification: H04J,H04L

Abstract:
1. A method for a user equipment (UE) to encode acknowledgement information bits for transmission to a base station in a time division duplex (TDD) communication system, the method comprising the steps of: generating the acknowledgement information bits for each of a plurality of subframes and for each of a plurality of cells configured for the UE, wherein one acknowledgement information bit in one subframe is generated for each cell configured with a transmission mode (TM) that conveys one data transport block (TB), and wherein two acknowledgement information bits in one subframe are generated for each cell configured with a TM conveying two data TBs; generating a first codeword by arranging the acknowledgement information bits corresponding to the plurality of subframes for each of the plurality of cells in an order of ascending cell index values; encoding the first codeword, if a total number of acknowledgement information bits is less than or equal to a predetermined value; and placing acknowledgement information bits from the first codeword into a second codeword and a third codeword, in an alternating manner, and encoding the second codeword and the third codeword, if the total number of acknowledgement information bits is greater than the predetermined value.