The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2005
Filed:
May. 05, 2000
Esa Nokkonen, Tampere, FI;
Jussi Numminen, Turku, FI;
Markku Lintinen, Kangasala, FI;
Jukka Kinnunen, Tampere, FI;
Juha Savolainen, Tampere, FI;
Pekka Jokitalo, Oulu, FI;
Esa Nokkonen, Tampere, FI;
Jussi Numminen, Turku, FI;
Markku Lintinen, Kangasala, FI;
Jukka Kinnunen, Tampere, FI;
Juha Savolainen, Tampere, FI;
Pekka Jokitalo, Oulu, FI;
Nokia Mobile Phones Ltd., Espoo, FI;
Abstract
The invention pertains in general to the testing of the operation of radio and other data transmission apparatus. In particular the invention pertains to the testing of the operation of a digital radio apparatus on the basis of error statistics. In order to test functions relating to data transmission, a simulation system produces a pseudorandom bit sequence or some other test sequence which is packed into downlink frames and sent to the data transmission apparatus tested. In accordance with the invention, a known number of errors are generated in the test sequence. As the data transmission apparatus tested compares the received test sequence to the sequence it has produced, it detects the errors in the received sequence and compiles various error statistics, e.g., in the form of bit error ratio (BER) or frame erasure ratio (FER). An uplink connection is used to send these statistical data to the simulation system which examines whether the information produced by the data transmission apparatus tested matches the simulation system's information about the erroneousness of the sequence sent downlink.