Synchronization in a flexible bandwidth wireless network
A user equipment (UE) searches for a first signal in a first bandwidth. The UE processes the signal to decode an indication of a second bandwidth, the signal includes a primary synchronization signal and a secondary synchronization signal, wherein the first bandwidth is different than the second bandwidth. Further, the UE detect a second signal in the second bandwidth.
1. A user equipment comprising:
a receiver; and
a processor, wherein:
the receiver and the processor are configured to search for a first signal in a first bandwidth;
the processor is configured to process the signal to decode an indication of a second bandwidth, the signal includes a primary synchronization signal and a secondary synchronization signal, wherein the first bandwidth is different than the second bandwidth; and
the receiver and the processor are configured to detect a second signal in the second bandwidth.
2. The user equipment of claim 1 wherein a symbol rate of the first signal is different than a symbol rate of the second signal.
3. The user equipment of claim 1 wherein the second bandwidth includes at least a bandwidth portion that does not overlap with the first bandwidth.
4. The user equipment of claim 1 wherein the first signal indicating a timing offset associated with the first signal.
5. The user equipment of claim 1 wherein the first bandwidth is less than a bandwidth of a cell of the second signal.
6. The user equipment of claim 1 wherein a plurality of signals are received in the first bandwidth, each of the plurality of signal includes a primary synchronization signal and a secondary synchronization signal are offset in time from each other.
7. The user equipment of claim 1 wherein the indication of the second bandwidth indicates the second bandwidth out of a set of potential second bandwidths.
8. The user equipment of claim 1 further comprising a transmitter, wherein the receiver, the transmitter and the processor are configured to transmit and receive using time division duplex.
9. A method performed by a user equipment (UE), the method comprising:
searching for a first signal in a first bandwidth;
processing the signal to decode an indication of a second bandwidth, the signal includes a primary synchronization signal and a secondary synchronization signal, wherein the first bandwidth is different than the second bandwidth; and
detecting a second signal in the second bandwidth.
10. The method of claim 9 , wherein a symbol rate of the first signal is different than a symbol rate of the second signal.
11. The method of claim 9 , wherein the second bandwidth includes at least a bandwidth portion that does not overlap with the first bandwidth.
12. The method of claim 9 , wherein the first signal indicating a timing offset associated with the first signal.
13. At least one non-transient computer readable medium containing program instructions for causing a user equipment (UE) to perform a method of:
searching for a first signal in a first bandwidth;
processing the signal to decode an indication of a second bandwidth, the signal includes a primary synchronization signal and a secondary synchronization signal, wherein the first bandwidth is different than the second bandwidth; and
detecting a second signal in the second bandwidth.
14. The at least one non-transient computer readable medium of claim 13 , wherein a symbol rate of the first signal is different than a symbol rate of the second signal.
15. The at least one non-transient computer readable medium of claim 13 , wherein the second bandwidth includes at least a bandwidth portion that does not overlap with the first bandwidth.
16. The at least one non-transient computer readable medium of claim 13 , wherein the first signal indicating a timing offset associated with the first signal.
17. A user equipment (UE) comprising:
means for searching for a first signal in a first bandwidth;
means for processing the signal to decode an indication of a second bandwidth, the signal includes a primary synchronization signal and a secondary synchronization signal, wherein the first bandwidth is different than the second bandwidth; and
means for detecting a second signal in the second bandwidth.
18. The UE of claim 17 wherein a symbol rate of the first signal is different than a symbol rate of the second signal.
19. The UE of claim 17 wherein the second bandwidth includes at least a bandwidth portion that does not overlap with the first bandwidth.
20. The UE of claim 17 wherein the first signal indicating a timing offset associated with the first signal.