System and method for locating a data frame within a transmitted data stream
First Claim
1. A method of providing a synchronization pattern for use in a communications system comprising the steps of:
- generating a synchronization pattern;
distributing the synchronization pattern over a segmented information signal, wherein the distributed synchronization pattern defines boundaries between groups of segments in the segmented information signal; and
distributing a segmented index over a particular group of segments in the segmented information signal, the segmented index distinguishing the particular group of segments from other groups of segments.
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Accused Products
Abstract
Described is a system and method related to the synchronization of a communication stream between two devices. A broadcast signal is a segmented information signal that includes a distributed synchronization pattern and a distributed frame index. Each segment of the segmented information signal further includes a header portion and a payload portion. The header portion of the segmented information signal includes a portion of the distributed synchronization pattern and a portion of the distributed frame index. The method includes generating the distributed synchronization pattern and the distributed frame index, distributing the synchronization pattern and frame index throughout the signal, and transmitting the signal.
21 Citations
23 Claims
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1. A method of providing a synchronization pattern for use in a communications system comprising the steps of:
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generating a synchronization pattern;
distributing the synchronization pattern over a segmented information signal, wherein the distributed synchronization pattern defines boundaries between groups of segments in the segmented information signal; and
distributing a segmented index over a particular group of segments in the segmented information signal, the segmented index distinguishing the particular group of segments from other groups of segments. - View Dependent Claims (2, 3)
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4. A method for communication stream synchronization in a communications receiver comprising the steps of:
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receiving a segmented information signal, wherein the segmented information signal includes a distributed synchronization pattern and a distributed frame index;
collecting the distributed synchronization pattern from the segmented information signal;
collecting the distributed frame index from the segmented information signal;
correlating the collected distributed synchronization pattern with a known synchronization pattern, wherein the correlation defines boundaries for groups of segments in the segmented information signal; and
evaluating the collected distributed frame index, to identify which group of the groups of segments in the segmented information signal has been received. - View Dependent Claims (5, 6, 7, 8)
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9. A system for providing a synchronization pattern for use in a wireless communications system comprising:
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a transmitter configured to transmit information over a wide area on a predetermined schedule;
a mobile device including a receiver, the receiver being configured to receive the transmitted information; and
a broadcast signal, transmitted by the transmitter and including a segmented information signal that further includes a distributed synchronization pattern and a distributed frame index, wherein each segment of the segmented information signal further comprises;
a header, including one or more marker bits, a portion of the distributed synchronization pattern, and a portion of the distributed segment index; and
a payload, including data. - View Dependent Claims (10, 11, 12, 13)
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14. A method of providing and receiving a synchronization pattern for use in a wireless communications system comprising the steps of:
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generating a synchronization pattern;
distributing the synchronization pattern over a segmented information signal, wherein the distributed synchronization pattern defines boundaries between groups of segments in the segmented information signal;
generating a segmented index;
distributing the segmented index over the segmented information signal, wherein the segmented index identifies a particular group of segments in the segmented information signal;
transmitting the segmented information signal over a wireless medium;
receiving at least a portion of the segmented information signal;
collecting the distributed synchronization pattern from the received segmented information signal;
collecting the distributed segment index from the received segmented information signal;
correlating the collected distributed synchronization pattern with a known synchronization pattern, wherein the correlation defines boundaries for groups of segments in the segmented information signal; and
evaluating the collected distributed segment index to identify which group of the groups of segments in the segmented information signal has been received. - View Dependent Claims (15, 16, 17, 18)
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- 19. A computer-readable medium encoded with a data structure for communication stream synchronization in a communications system, the data structure comprising a plurality of segments of data, wherein each segment includes at least two data fields, a synchronization pattern field and an index field, wherein a portion of a synchronization pattern is included in the synchronization pattern field of each segment, and a portion of an index that distinguishes the data stream from other data streams is included in the index field of each segment.
Specification