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:
Apr. 20, 2004
Filed:
Feb. 11, 2000
Wen Tong, Ottawa, CA;
Rui R. Wang, Ottawa, CA;
Nortel Networks Limited, St. Laurent, CA;
Abstract
A plurality of data channels provide respective data rates and maximum error rates from a mobile station to a base station of a CDMA system; a pilot channel facilitates recovery of the data channels. For each data channel there is determined a channel energy to noise ratio (ENR) and a required pilot channel ENR. A maximum one of the required pilot channel ENRs is selected as an ENR for transmission of the pilot channel. A relative gain, and hence transmit signal power, for each data channel is determined from the ENR determined for the data channel and the selected maximum ENR for transmission of the pilot channel, thereby minimizing the total transmitted signal power of the mobile station. The data channel signals are spread using orthogonal Walsh codes and are combined with their determined relative gains.