Back to results
US 2007/0183487 A1Published application
Optimal use of resources for signal processors
AssigneeNemerix SA
InventorAngelo Genghi
Life of this patent
Estimating the term…
Abstract
Systems, methods and devices for signal processing are presented. In particular, methods for the detection of signals in CDMA-based systems are presented, together with corresponding devices. These methods provide more efficient use of correlation resources through proper identification of candidate signal peaks.
Claims20
A signal processing method, comprising
- receiving a signal;
- performing a plurality of correlation steps over an entire code-frequency search space using a correlation engine having associated correlation resources to form a plurality of correlation results;
- identifying from among the correlation results at least two candidates, each candidate comprising a code offset-frequency pair;
- rejecting all candidates aside from the at least two candidates;
- further correlating the at least two candidates;
- identifying a candidate from the at least two candidates that represents a desired signal;
- and
- wherein the step of further correlating the at least two candidates is conducted using fewer correlation resources than the step of performing a plurality of correlation steps.
5 more elements
A signal processing method, comprising:
- receiving a first signal;
- performing a pre-detection stage;
- releasing a fraction of the correlation resources used in the pre-detection stage for the processing of a second signal;
- and
- performing at least one distillation stage with the first signal.
2 more elements
A signal processing receiver, comprising:
- a correlation engine configured to correlate a known code against a received signal and comprising at least three channels;
- a processor operatively connected to the correlation engine and in communication with a memory with executable instructions for carrying forward by at least two of the at least three channels a partial correlation performed by one of the at least three correlation channels;
- and
- wherein the processor is further configured to release the one of the at least three correlation channels from correlation of the received signal when its partial correlation is complete.
1 more element
An integrated circuit comprising,
- a correlation engine, the correlation engine further comprising a plurality of channels;
- the plurality of channels having at least two independent channels;
- a subgroup of the plurality of channels being at least indirectly in communication, such that an acquisition search conducted by a channel can be further processed by at least two independent channels;
- wherein each of the channels is configured to reject at least one corresponding candidate after an integration period;
- and
- and wherein at least one channel is configured to be released after rejection of a plurality of candidates.
3 more elements
Dependencies are inferred from the claim text.