Patent ID: 8787143

Claim:
An apparatus for wireless communication, comprising: means for spreading a signal from a first user in a first group of users across frequency, wherein signals from different users in the first group of users are code division multiplexed (CDM) in frequency domain; means for spreading the signal from the first user across time, wherein the signals from the different users in the first group of users are code division multiplexed in time domain; and means for mapping the signal from the first user to a first set of subcarriers assigned to the first group of users and corresponding to a subset of a plurality of subcarriers available for assignment to users, wherein signals from all users in the first group of users are sent on the first set of subcarriers, and wherein signals from different groups of users are frequency division multiplexed (FDM) and sent on different sets of subcarriers corresponding to different non-overlapping subsets of the plurality of subcarriers available for assignment to users.