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:
May. 23, 2023
Filed:
Mar. 11, 2020
Apple Inc., Cupertino, CA (US);
Deepankar Bhattacharjee, Milpitas, CA (US);
Prateek Sharma, San Jose, CA (US);
Farouk Belghoul, Campbell, CA (US);
Dawei Zhang, Saratoga, CA (US);
Haitong Sun, Irvine, CA (US);
Wei Zeng, San Diego, CA (US);
Sreevalsan Vallath, Dublin, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
This disclosure relates to providing a reservation signal for cellular communication in unlicensed spectrum. A cellular base station may perform a listen-before-talk procedure on an unlicensed frequency channel. The cellular base station may transmit a reservation signal on the unlicensed frequency channel after successfully performing the listen-before-talk procedure. The cellular base station may perform carrier sensing on the unlicensed frequency channel at least once during the duration of the reservation signal. The cellular base station may perform cellular communication on the unlicensed frequency channel after ceasing transmitting the reservation signal.