US 2017/0374683 A1 · SYSTEM AND METHOD OF CONTROLLING NETWORK TRAFFIC USING PREAMBLE DETECTION AND AUTOMATED OPTIMIZATION OF RANDOM ACCESS CHANNEL PARAMETERS

Abstract

Detecting physical random access channel (RACH) preambles is accomplished by computing a correlation power profile based on received RACH preambles, where the correlation power profile values may be sorted. A weight factor is computed for each of the correlation power profile values based on a normalized RACH detection threshold. Outlier peaks of the correlation power profile values are selected based on the weight factor. The outlier peaks to the first set of RACH signatures are mapped in order to identify a user equipment (UE) that is associated with one of the received RACH preambles. Network traffic is then controlled for network communications associated with the identified UE.

Claims20

Dependent claims

A method of preamble detection to control network traffic in a communication network, comprising:

detecting, by at least a first processor of at least a first network node, physical random access channel (RACH) preambles, by performing the steps of,
computing a correlation power profile based on a set of received RACH preambles,
sorting correlation power profile values,
computing a weight factor for each of the correlation power profile values based on a normalized RACH detection threshold,
selecting outlier peaks of the correlation power profile values based on the weight factor,
mapping the outlier peaks to the first set of RACH signatures in order to identify at least one UE that is associated with one of the received RACH preambles;
and
controlling, by the first processor, the network traffic of network communications associated with the at least one identified UE.

5 more elements

At least a first network node in a communication network, the at least a first network node comprising:

at least a first processor, configured to,
detect physical random access channel (RACH) preambles, by performing the steps of,
computing a correlation power profile based on a set of received RACH preambles,
sorting correlation power profile values,
computing a weight factor for each of the correlation power profile values based on a normalized RACH detection threshold,
selecting outlier peaks of the correlation power profile values based on the weight factor,
mapping the outlier peaks to the first set of RACH signatures in order to identify at least one UE that is associated with one of the received RACH preambles;
and
control network traffic of network communications associated with the at least one identified UE.

6 more elements

Dependencies are inferred from the claim text.

System and method of controlling network traffic using preamble detection and automated optimization of random access channel parameters

Life of this patent

System and method of controlling network traffic using preamble detection and automated optimization of random access channel parameters

Life of this patent

Abstract

Claims20