Patent ID: 9078263
Filing Date: 2015-07-07
Classification: H04L,H04W

Abstract:
1. A method thr wirelessly transmitting user data and control information using a plurality of transmission layers, comprising: determining a total amount of transmission resources granted to a wireless terminal for use in a subframe based on a product of a total number of subcarriers allocated to a wireless terminal and a total number of vector symbols allocated to the wireless terminal; estimating a number of vector symbols to be allocated by the wireless terminal to a plurality of user data codewords based on the total amount of transmission resources granted to the wireless terminal for use in the subframe; determining a number of bits in one or more the plurality of user data codewords to be transmitted by the wireless terminal during the subframe; calculating a number of control vector symbols to allocate to control information based at least in part on the estimated number of vector symbols and the determined number of bits; mapping one or more control codewords to the calculated number of control vector symbols, wherein the one or more control codewords comprise encoded control information; and transmitting vector symbols carrying the user data codewords and the control codewords over the plurality of transmission layers during the subframe.