Method for acquisition of slot timing in a direct sequence spread spectrum communication receiver
First Claim
1. A method of acquiring slot timing when synchronizing a direct sequence spread spectrum communications receiver with transmissions of a network base station, the method comprising the steps of:
- repetitively correlating a synchronization code received over a radio channel with a synchronization code stored in the receiver;
assigning, at each repetitive correlation, a value to resulting peaks;
ranking the resulting peaks according to the assigned values; and
selecting peaks with highest ranking for slot timing.
2 Assignments
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Accused Products
Abstract
A set of values corresponding to measured parameters of the output peaks resulting from the correlation of the received data with a synchronization code stored in the receiver are saved to a peak buffer. Subsequent transmissions of the synchronization data are similarly correlated in the receiver and the results stored as assigned values in further peak buffers. The contents of the peak buffers are then regrouped according to their positional entries. A ranking is computed from the values assigned for each position and the positions with the highest ranking are selected for slot timing.
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Citations
21 Claims
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1. A method of acquiring slot timing when synchronizing a direct sequence spread spectrum communications receiver with transmissions of a network base station, the method comprising the steps of:
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repetitively correlating a synchronization code received over a radio channel with a synchronization code stored in the receiver;
assigning, at each repetitive correlation, a value to resulting peaks;
ranking the resulting peaks according to the assigned values; and
selecting peaks with highest ranking for slot timing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification
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- Resources
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Current AssigneeLenovo Innovations Ltd Hong Kong (Lenovo Group Ltd.)
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Original AssigneeNEC Corporation
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InventorsBoloorian, Majid, Gesret, Anne-Marie
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current375/150
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CPC Class CodesH04B 1/7083 Cell search, e.g. using a t...
