Fast cell search
First Claim
1. A method that facilitates a multi-stage cell search, comprising:
- detecting primary synchronization channels (PSCs), wherein a relative time distance between two consecutive PSCs is fixed regardless of a cyclic prefix (CP) length;
using the PSCs as a phase reference for detecting secondary synchronization channels (SSCs); and
determining a phase shift of one of the SSCs based at least in part on the phase reference.
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Abstract
Systems and methodologies are described that facilitate searches for a cell in a wireless communication environment. A mobile device can employ a searcher that can detect timing information respectively associated with PSCs and cells to determine the cell with the highest correlation. The searcher can detect SSCs, which can include detecting associated phase information, to determine the SSC with the highest correlation, CP length, and/or other information to facilitate identifying a desired cell having the strongest signal to establish communication between the mobile device and the desired cell. PSCs respectively associated with cells can have different positions in the symbol sequences, and SSCs can respectively be phase shifted at different angles to facilitate detection and identification of a cell(s), where a PSC can be utilized as a phase reference by the associated SSC.
34 Citations
28 Claims
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1. A method that facilitates a multi-stage cell search, comprising:
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detecting primary synchronization channels (PSCs), wherein a relative time distance between two consecutive PSCs is fixed regardless of a cyclic prefix (CP) length; using the PSCs as a phase reference for detecting secondary synchronization channels (SSCs); and determining a phase shift of one of the SSCs based at least in part on the phase reference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions for:
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detecting primary synchronization channels (PSCs), wherein a relative time distance between two consecutive PSCs is fixed regardless of cyclic prefix (CP) length; using the PSCs as a phase reference for detecting secondary synchronization channels (SSCs); and determining a phase shift of one of the SSCs based at least in part on the phase reference.
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15. An apparatus operable in a wireless communication system, the apparatus comprising:
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means for detecting primary synchronization channels (PSCs), wherein a relative time distance between two consecutive PSCs is fixed regardless of cyclic prefix (CP) length; means for using the PSCs as a phase reference for detecting secondary synchronization channels (SSCs); and means for determining a phase shift of one of the SSCs based at least in part on the phase reference.
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16. An apparatus operable in a wireless communication system, the apparatus comprising:
a processor, configured to; detect primary synchronization channels (PSCs), wherein a relative time distance between two consecutive PSCs is fixed regardless of cyclic prefix (CP) length; use the PSCs as a phase reference for detecting secondary synchronization channels (SSCs); and determine a phase shift of one of the SSCs based at least in part on the phase reference. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
Specification