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:
Oct. 13, 2020
Filed:
Dec. 27, 2018
Xi'an Creation Keji Co., Ltd., Xi'an, CN;
Weiguo Zhang, Xi'an, CN;
Yu Zuo, Xi'an, CN;
XI'AN CREATION KEJI CO., LTD., Xi'An, CN;
Abstract
The present invention relates to a method for constructing orthogonal sequence sets in a CDMA system, including: step a: selecting natural numbers m and k, m and k satisfying m=2k+4: step b: constructing a 5-spectral value vector Boolean function; step c: constructing 24 orthogonal sequence sets by using the 5-spectral value vector Boolean function; and step d: allocating the orthogonal sequence sets to cells, and causing that sequences in each of the cells are orthogonal with one another, and sequences in each of the cells and sequences in neighboring one of the cells are orthogonal with one another. The constructing method provided by the present invention can increase the number of users in cells, reduce the signal interferences of neighboring cells, and improves the communication quality consequently.