Method and system for frame timing acquisition in evolved universal terrestrial radio access (EUTRA)
First Claim
1. A method for processing communication signals, the method comprising:
- determining a received secondary synchronization sequence (SSS) based on a selected cyclic prefix length and synchronization of a primary synchronization sequence (PSS);
processing a first portion of information associated with said received SSS separately from a second portion of information associated with said received SSS-based on corresponding sub-carrier positions; and
determining a frame timing and/or base station identifier, by comparing said processed first portion of information with said processed second portion of information;
whereindetermining said frame timing by determining whether said selected cyclic prefix length results in consistently decoded information, wherein said consistency of said decoded information is determined by comparing said processed first portion of information with said processed second portion of information.
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Accused Products
Abstract
Aspects of a method and system for frame timing acquisition in evolved universal terrestrial radio access (EUTRA) may include determining a received secondary synchronization sequence (SSS) based on a selected cyclic prefix length and on synchronization of a primary synchronization sequence (PSS). A first portion of information associated with the received SSS may be processed separately from a second portion of information associated with the received SSS. A frame timing and/or base station identifier may be determined by comparing the processed first portion of information with the processed second portion of information. The cyclic prefix length may be selected from a finite set of possible cyclic prefix lengths. The cyclic prefix length may be, for example, 9 samples or 32 samples. The primary synchronization sequence synchronization may be determined via correlation.
65 Citations
18 Claims
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1. A method for processing communication signals, the method comprising:
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determining a received secondary synchronization sequence (SSS) based on a selected cyclic prefix length and synchronization of a primary synchronization sequence (PSS); processing a first portion of information associated with said received SSS separately from a second portion of information associated with said received SSS-based on corresponding sub-carrier positions; and determining a frame timing and/or base station identifier, by comparing said processed first portion of information with said processed second portion of information;
whereindetermining said frame timing by determining whether said selected cyclic prefix length results in consistently decoded information, wherein said consistency of said decoded information is determined by comparing said processed first portion of information with said processed second portion of information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for processing communication signals, the system comprising one or more circuits operable to, at least:
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determine a received secondary synchronization sequence (SSS) based on an selected cyclic prefix length and synchronization of a primary synchronization sequence (PSS); process a first portion of information associated with said received SSS separately from a second portion of information associated with said received SSS-based on corresponding sub-carrier positions; and determine a frame timing and/or base station identifier, by comparing said processed first portion of information with said processed second portion of information;
whereinsaid one or more circuits determine said frame timing by determining whether said selected cyclic prefix length results in consistently decoded information, wherein said consistency of said decoded information is determined by comparing said processed first portion of information with said processed second portion of information. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for processing communication signals, the method comprising:
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determining a received secondary synchronization sequence (SSS) based on a selected cyclic prefix length and synchronization of a primary synchronization sequence (PSS); processing a first portion of information associated with a received secondary synchronization sequence (SSS) separately from a second portion of information associated with said received SSS, based on corresponding sub-carrier positions; and determining a frame timing and/or base station identifier based on consistency compared and checked in information decoded from said processing over several conservative frames;
whereindetermining said frame timing by determining whether said selected cyclic prefix length results in consistently decoded information, wherein said consistency of said decoded information is determined by comparing said processed first portion of information with said processed second portion of information.
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Specification