| CPC H04B 7/0456 (2013.01) [H04B 1/0003 (2013.01); H04B 7/024 (2013.01); H04B 7/0452 (2013.01); H04B 7/0632 (2013.01)] |

| AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT: |
| The patentability of claims 8-10 is confirmed. |
| Claims 1-7 and 11-21 were not reexamined. |
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8. An apparatus for providing flexible channel bandwidth in mobile radio communications, comprising:
at least one processor; and
at least one non-transitory computer-readable memory in electronic communication with the at least one processor, and instructions stored in the at least one memory, the instructions executable by the at least one processor for:
provisioning a set of Orthogonal Frequency Division Multiplexing (OFDM) subcarriers for mobile radio communications;
encoding data symbols with polyphase codes derived from a discrete Fourier transform to produce encoded data symbols; and
modulating the encoded data symbols onto the OFDM subcarriers to produce a superposition signal that resembles a single-carrier signal and has one of a plurality of different symbol durations;
wherein provisioning comprises selecting one of a plurality of different selectable subcarrier spacings, to provide for the one of the plurality of different symbol durations.
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