Signal arrangement for multi-bandwidth OFDM system

1. A method, comprising:

configuring, by a processor, a primary synchronization sequence every fourth or fifth sub-frame of a frame at a center of a bandwidth;

configuring, by the processor, a primary common pilot to be transmitted for each sub-frame, wherein the primary synchronization sequence is configured at a different symbol of a sub-frame of the frame than the primary common pilot;

configuring, by the processor, short system information to be transmitted once per frame at the center of the bandwidth, the short system information providing information pertaining to a wireless communication system, including a system bandwidth; and

transmitting, by the processor, the frame comprising the primary synchronization sequence, the primary common pilot, and the short system information.

2. The method as recited in claim 1 , wherein a structure of the frame period comprises definitions of at least one of sub-frames, signaling channels, and pilot positions.

3. The method as recited in claim 1 , further comprising:

defining the primary common pilot to be present in a first symbol of every sub-frame.

4. The method as recited in claim 1 , further comprising:

configuring the short system information to be transmitted using a predetermined number of symbols of a sub-frame.

5. A method, comprising:

detecting, by a processor, a pilot sequence comprising a primary synchronization sequence at every fourth or fifth sub-frame of a frame at a center of a bandwidth, a primary common pilot for each sub-frame, and short system information once per frame at the center of the bandwidth, the short system information providing information pertaining to a wireless communication system, including a system bandwidth,

wherein the primary synchronization sequence is configured at a different symbol of a sub-frame than the primary common pilot; and

decoding, by the processor, the short system information to identify a system bandwidth of a cell.

6. The method as recited in claim 5 , further comprising:

adjusting a receiver bandwidth according to the decoded bandwidth of the cell.

7. The method as recited in claim 5 , further comprising:

decoding the short system information and reading a frame number to further identify system frame timing

8. The method as recited in claim 5 , further comprising:

based on an identified access point, performing symbol, sub-frame, and frame synchronization and correcting frequency offset.

9. A computer program embodied on a non-transitory computer readable medium, the computer program being configured to perform:

configuring a primary synchronization sequence every fourth or fifth sub-frame of a frame at a center of a bandwidth;

configuring a primary common pilot to be transmitted for each sub-frame, wherein the primary synchronization sequence is configured at a different symbol of a sub-frame of the frame than the primary common pilot;

configuring short system information to be transmitted once per frame at the center of the bandwidth, the short system information providing information pertaining to a wireless communication system, including a system bandwidth; and

transmitting the frame comprising the primary synchronization sequence, the primary common pilot, and the short system information.

10. A computer program embodied on a non-transitory computer readable medium, the computer program being configured to perform:

detecting a pilot sequence comprising a primary synchronization sequence at every fourth or fifth sub-frame of a frame at a center of a bandwidth, a primary common pilot for each sub-frame, and short system information once per frame at the center of the bandwidth, the short system information providing information pertaining to a wireless communication system, including a system bandwidth,

wherein the primary synchronization sequence is configured at a different symbol of a sub-frame than the primary common pilot; and

decoding the short system information to identify a system bandwidth of a cell.

11. A system, comprising:

a network element configured to transmit a pilot sequence; and

a user equipment configured to detect a pilot sequence comprising a primary synchronization sequence at every fourth or fifth sub-frame of a frame at a center of a bandwidth, a primary common pilot for each sub-frame, and short system information once per frame at the center of the bandwidth, and to decode the short system information to identify a system bandwidth of a cell,

the short system information providing information pertaining to a wireless communication system, including a system bandwidth.

12. The system as recited in claim 11 , wherein the primary synchronization sequence is configured at a different symbol of a sub-frame than the primary common pilot.

13. A system, comprising:

network element means for transmitting a pilot sequence; and

user equipment means for detecting a pilot sequence comprising a primary synchronization sequence at every fourth or fifth sub-frame of a frame at a center of a bandwidth, a primary common pilot for each sub-frame, and short system information once per frame at the center of the bandwidth, and to decode the short system information to identify a system bandwidth of a cell, wherein the short system information provides information pertaining to a wireless communication system, including a system bandwidth.

14. An apparatus, comprising:

a processor; and

a memory including a computer program code,

wherein the memory and the computer program code are configured, with the processor, to cause the apparatus, at least, to

detect a pilot sequence comprising a primary synchronization sequence at every fourth or fifth sub-frame of a frame at a center of a bandwidth, a primary common pilot for each sub-frame, and short system information once per frame at the center of the bandwidth, and

decode the short system information to identify a system bandwidth of a cell,

wherein the short system information provides information pertaining to a wireless communication system, including a system bandwidth.

15. The apparatus as recited in claim 14 , wherein the apparatus adjusts a receiver bandwidth according to the decoded bandwidth of the cell.

16. The apparatus as recited in claim 14 , wherein the apparatus decodes the short system information and reads a frame number to further identify system frame timing

17. The apparatus as recited in claim 14 , wherein, based on an identified access point, the apparatus performs symbol, sub-frame, and frame synchronization and correcting frequency offset.

18. An apparatus, comprising:

a processor; and

a memory including a computer program code,

wherein the memory and the computer program code are configured, with the processor, to cause the apparatus, at least, to

transmit a primary synchronization sequence every fourth or fifth sub-frame of a frame at a center of a bandwidth,

transmit a primary common pilot for each sub-frame, and

transmit short system information once per frame at the center of the bandwidth, the short system information providing information pertaining to a wireless communication system, including a system bandwidth,

wherein the primary synchronization sequence is configured at a different symbol of a sub-frame than the primary common pilot.

19. The apparatus as recited in claim 18 , wherein a structure of the frame period comprises definitions of at least one of sub-frames, signaling channels, and pilot positions.

20. The apparatus as recited in claim 18 , wherein the primary common pilot is configured to be present in a first symbol of every sub-frame.

21. The apparatus as recited in claim 18 , wherein the apparatus transmits the short system information once per frame to define frame timing

22. The apparatus as recited in claim 18 , wherein the apparatus transmits the short system information using a predetermined number of symbols of a sub-frame.