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US 10,833,800 B1Granted
Method and system for channel detection
AssigneeRohde & Schwarz GmbH & Co. KG
InventorOtmar Wanierke
Life of this patent
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Abstract
A method and a system are provided for channel detection like radio frequency channel detection in modern telecommunication standards like 5G-NR (new radio). The method and the system provide a fast and sensitive channel detection by evaluating a radio frequency signal received. The respective method and system may be applied to different telecommunication standards, for example new telecommunication standards like 5G-NR (new radio) and LTE.
Claims16
A method of channel detection, comprising:
- receiving at least one radio frequency signal by means of at least one antenna, thereby generating a received signal, wherein the radio frequency signal comprises constant components that repeat over time by a known repetition rate;
- applying several down-converters on sub-bands of the received signal, thereby generating down-converted signals;
- converting the down-converted signals to digital data streams that comprise information concerning the respective down-converter used and the sampling time;
- extracting at least a first vector and a second vector from the digital data streams for at least two different transmissions of each constant component at different times;
- calculating scalar products for each constant component based on the respective first and second vectors;
- adding the scalar products of the different constant components for all potential arrival times respectively, resulting in a complex set of values associated with the constant components;
- and
- feeding the complex set of values associated with the constant components into a decider that delivers the most probable time value for the arrival time of the searched radio frequency signal.
5 more elements
A system for channel detection, the system comprising:
- at least one antenna, at least one receiver connected with the antenna and at least one evaluation circuit,
- wherein the at least one antenna and the at least one receiver are configured to receive at least one radio frequency signal, thereby generating a received signal, wherein the radio frequency signal comprises constant components that repeat over time by a known repetition rate, and
- wherein the at least one evaluation circuit is configured to:
- apply several down-converters on sub-bands of the received signal, thereby generating down-converted signals;
- convert the down-converted signals to digital data streams that comprise information concerning the respective down-converter used and the sampling time used for said converting;
- extract at least a first vector and a second vector from the digital data streams for at least two different transmissions of each constant component at different times;
- calculate scalar products for each constant component based on the respective first and second vectors;
- add the scalar products of the different constant components for all potential arrival times respectively, resulting in a complex set of values associated with the constant components;
- and
- feed the complex set of values associated with the constant components into a decider that delivers the most probable time value for the arrival time of the searched radio frequency signal.
7 more elements
Dependencies are inferred from the claim text.