Network delay identification method and apparatus
First Claim
Patent Images
1. A system for identifying transmission delay in a communication network comprising:
- a data source adapted to generate a sequence of bits;
a demodulator adapted to synchronize with the sequence of bits by shifting samples of the sequence of bits until an optimum synchronization value is generated; and
a synchronizer adapted to identify a network delay value according to the synchronized sequence of bits.
5 Assignments
0 Petitions
Accused Products
Abstract
Network delay is determined in order to synchronize a clock in a mobile station with a reference clock. Tones are generated that represent a sequence of bits in a synchronization flag. The tones are sampled beginning at a selected sample start time. The sampled tones are demodulated to identify the bit values in the synchronization flag. The demodulator is synchronized with the sampled tones in the synchronization flag by shifting the sample start time until the samples generate an optimum synchronization value. A reference time is then identified according to the optimum sample start time.
66 Citations
10 Claims
-
1. A system for identifying transmission delay in a communication network comprising:
-
a data source adapted to generate a sequence of bits; a demodulator adapted to synchronize with the sequence of bits by shifting samples of the sequence of bits until an optimum synchronization value is generated; and a synchronizer adapted to identify a network delay value according to the synchronized sequence of bits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification