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:
Dec. 21, 2021
Filed:
Nov. 04, 2019
Optis Wireless Technology, Llc, Plano, TX (US);
Optis Wireless Technology, LLC, Plano, TX (US);
Abstract
Provided is a radio communication device which can suppress inter-code interference between an ACK/NACK signal and a CQI signal which are code-multiplexed. A diffusion unit () diffuses the ACK/NACK signal inputted from a judgment unit () by using a ZC sequence. A diffusion unit () diffuses the CQI signal by using a cyclic shift ZC sequence. By using a Walsh sequence, a diffusion unit () further diffuses the ACK/NACK signal which has been diffused by using the ZC sequence. A control unit () controls the diffusion unit (), the diffusion unit (), and the diffusion unit () so that the minimum value of the difference between the CQI signals from a plurality of mobile stations and a cyclic shift amount of the ACK/NACK signal is not smaller than the minimum value of the difference between the cyclic shift amounts of the ACK/NACK signals from the plurality of mobile stations.