Methods and apparatus for mapping modulation symbols to resources in OFDM systems

摘要

A transmission resource in a time domain subframe is divided into a plurality of equal duration resource elements in a time and frequency domain, the plurality of resource elements are segregated into a plurality of resource regions, information to be transmitted is modulated to generate a sequence of modulation symbols at a transmitter, the sequence of modulation symbols is mapped into the plurality of resource elements in the plurality of resource regions, and the modulation symbols are transmitted via a plurality of antennas using the respective corresponding resource elements to a receiver. The mapping of the modulation symbols in at least one resource region is independent of a certain control channel information that is carried in the time domain subframe, and the mapping of the modulation symbols in at least another resource region is dependent upon that certain control channel information.

主权项

1. A method for transmitting information bits by using a plurality of resources in a wireless communication system, the method comprising:
segmenting the information bits to be transmitted into a plurality of code blocks; encoding the information bits in each code block; assigning a number of resources to each of the plurality of code blocks, with a larger number of resources assigned to at least one code block at an end and a smaller number of resources assigned to at least one code block at a beginning if N1 cannot be divided equally by Nseg, where N1 is a number of symbols available for data transmission and Nseg is a number of code blocks; and transmitting the information bits to a receiver via one or more antennas based on the assigned resources.