System scanning and acquisition
First Claim
1. A method of wireless communication, comprising:
- receiving a first synchronization signal comprising a plurality of sequence repetitions;
identifying a set of candidates for a timing structure boundary based at least in part on the plurality of sequence repetitions; and
determining the timing structure boundary from the set of candidates based at least in part on a second synchronization signal.
1 Assignment
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Accused Products
Abstract
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a set of non-overlapping periodic intervals for monitoring a synchronization signal, which may be composed of or may include a repeated sequence; and the UE may identify possible timing structure (e.g., subframe, slot, etc.) boundaries using the intervals. The UE may then determine that one of the possible boundaries is a boundary using a second synchronization signal. For instance, the UE may perform a cumulative correlation during each of a series of correlation periods corresponding to the periodic intervals. Each of the cumulative correlations may contain multiple coherent correlations associated with the sequence repetitions. From the cumulative correlations, the UE may identify possible boundaries. The UE may perform a secondary correlation based on a second synchronization signal for each possible boundary in order to determine the system timing.
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Citations
74 Claims
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1. A method of wireless communication, comprising:
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receiving a first synchronization signal comprising a plurality of sequence repetitions; identifying a set of candidates for a timing structure boundary based at least in part on the plurality of sequence repetitions; and determining the timing structure boundary from the set of candidates based at least in part on a second synchronization signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of wireless communication, comprising:
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transmitting a first synchronization signal comprising a plurality of sequence repetitions, wherein the first synchronization signal comprises a periodic waveform; and transmitting a second synchronization signal comprising a non-periodic waveform. - View Dependent Claims (22, 23, 24)
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25. An apparatus for wireless communication, comprising:
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means for receiving a first synchronization signal comprising a plurality of sequence repetitions; means for identifying a set of candidates for a timing structure boundary based at least in part on the plurality of sequence repetitions; and means for determining the timing structure boundary from the set of candidates based at least in part on a second synchronization signal. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An apparatus for wireless communication, comprising:
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means for transmitting a first synchronization signal comprising a plurality of sequence repetitions, wherein the first synchronization signal comprises a periodic waveform; and means for transmitting a second synchronization signal comprising a non-periodic waveform. - View Dependent Claims (46, 47, 48)
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49. An apparatus for wireless communication, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to; receive a first synchronization signal comprising a plurality of sequence repetitions; identify a set of candidates for a timing structure boundary based at least in part on the plurality of sequence repetitions; and determine the timing structure boundary from the set of candidates based at least in part on a second synchronization signal. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
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69. An apparatus for wireless communication, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to; transmit a first synchronization signal comprising a plurality of sequence repetitions, wherein the first synchronization signal comprises a periodic waveform; and transmit a second synchronization signal comprising a non-periodic waveform. - View Dependent Claims (70, 71, 72)
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73. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable to:
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receive a first synchronization signal comprising a plurality of sequence repetitions; identify a set of candidates for a timing structure boundary based at least in part on the plurality of sequence repetitions; and determine the timing structure boundary from the set of candidates based at least in part on a second synchronization signal.
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74. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable to:
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transmit a first synchronization signal comprising a plurality of sequence repetitions, wherein the first synchronization signal comprises a periodic waveform; and transmit a second synchronization signal comprising a non-periodic waveform.
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Specification