Coding information for communication over an orthogonal frequency division multiple access (OFDMA)-based wireless link

1. A method for coding control channel information for transmission in a long term evolution (LTE) wireless access network, comprising:

mapping the control channel information to a selected at least one sequence of a pool of sequences having a reduced peak-to-average power (PAPR) ratio;

modulating the selected at least one sequence having mapped control channel information; and

transmitting the modulated selected at least one sequence over an orthogonal frequency division multiple access (OFDMA)-based wireless link of the LTE wireless access network.

2. The method of claim 1 , wherein the OFDMA-based wireless link is an (OFDMA)-based uplink from a mobile station to a base station, the method further comprising transmitting the selected at least one sequence over the OFDMA-based uplink.

3. The method of claim 1 , further comprising:

at a receiver, receiving the modulated selected at least one sequence and extracting the control channel information from the selected at least one sequence.

4. The method of claim 1 , wherein providing the pool of sequences comprises providing a pool of Zadoff-Chu sequences.

5. The method of claim 1 , wherein the modulated sequence is transmitted using multiple antennas.

6. The method of claim 1 , further comprising:

generating a first sequence having a reduced peak-to-average power (PAPR);

applying plural different cyclic phase shifts to the first sequence to produce the pool of sequences.

7. The method of claim 1 , wherein the control channel information has a first control channel information part and a second control channel information part, and wherein mapping the control channel information comprises mapping the first control channel information part to the selected at least one of the sequences, the method further comprising:

applying cosine modulation to the selected at least one sequence having the first control channel information part prior to transmission over the OFDMA-based wireless link;

mapping the second control channel information part to a second selected one of the sequences in the pool; and

applying sine modulation to the second selected sequence prior to transmission over the OFDMA-based wireless link.

8. A wireless transmitter for transmitting control channel information over a long term evolution (LTE) wireless link, the transmitter comprising:

a sequence generator configured to generate a pool of sequences having a reduced peak-to-average power (PAPR) ratio;

a sequence selector configured to map the control channel information to a selected at least one of the sequences in the pool;

a modulator configured to apply a modulation to the selected at least one sequence having mapped control channel information; and

a circuit to cause transmission of the modulated selected at least one sequence that represents the control channel information over an orthogonal frequency division multiple access (OFDMA)-based LTE wireless link.

9. The wireless transmitter of claim 8 , further comprising at least one antenna configured to transmit the modulated selected at least one sequence.

10. The wireless transmitter of claim 8 , wherein the control information includes a first control channel information part and a second control channel information part, and the sequence selector maps the first control channel information part, and the modulation comprises cosine modulation applied to the selected sequence that represents the first control channel information part, the transmitter further comprising:

a second sequence selector configured to map the second control channel information part to a second one of the sequences in the pool; and

a second modulator configured to apply sine modulation to the second selected sequence prior to transmission over the OFDMA-based LTE wireless link.

11. The wireless transmitter of claim 8 , wherein the sequence generator comprises at least one pseudo-random number sequence generator.

12. The wireless transmitter of claim 8 , wherein the sequence generator is also configured to produce a first sequence having the reduced PAPR, and to apply multiple different cyclic phase shifts to the first sequence to produce the pool of sequences.

13. The wireless transmitter of claim 12 , wherein the sequence generator comprises a cyclic phase shift circuit to apply the different cyclic phase shifts to the first sequence to produce the pool of sequences.

14. The wireless transmitter of claim 13 , wherein the control channel information has k bits, k≧2, and wherein the pool of sequences comprise 2 k sequences.

15. The wireless transmitter of claim 8 , wherein the pool of sequences includes a pool of Zadoff-Chu sequences or a pool of binary sequences.

16. The wireless transmitter of claim 8 , further comprising:

an adaptive selection circuit configured to select whether mapping of the control channel information is to be performed based on at least one criterion.

17. The wireless transmitter of claim 16 , wherein selection of whether mapping of the control channel information is to be performed is based on whether a mobile station that the transmitter is part of is a low geometry mobile station or a high geometry mobile station.

18. The wireless transmitter of claim 8 , further comprising at least two antennas configured to transmit the modulated selected at least one sequence.

19. A wireless receiver in a long term evolution (LTE) network comprising:

correlation circuits configured to correlate an input signal received over an orthogonal frequency division multiple access (OFDMA)-based LTE wireless link to respective ones of plural waveforms that are produced from application of difference cyclic phase shifts to a low peak-to-average power ratio sequence, the input signal including a modulated signal having control channel information mapped to one of the plural waveforms; and

a circuit to select one of the plural waveforms based on the correlations by the correlation circuits and to decode the selected waveform to control channel information that was transmitted by a transmitter over the OFDMA-based LTE wireless link.

20. The wireless receiver of claim 19 , wherein the low peak-to-average power ratio sequence is a Zadoff-Chu sequence.