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. 09, 2018
Filed:
Nov. 15, 2016
Institute for Information Industry, Taipei, TW;
Kun-Hung Lee, Taipei, TW;
Institute For Information Industry, Taipei, TW;
Abstract
A wireless device, a base station, a random access method and a preamble configuration method are provided. The mobile communication system defines a plurality of preambles, a plurality of low priority preamble sets, and a high priority preamble set. The low priority preamble sets have a strict partial order relationship therebetween. The high priority preamble set and the highest-order low priority preamble set are independent from each other. When requiring random access from a base station, the wireless device randomly selects a preamble from the low priority preamble sets to transmit a random access request message to the base station by using the selected preamble. When the request for random access fails, the wireless device with low priority randomly reselects a preamble from the higher-order low priority preamble set, and the wireless device with high priority randomly reselects a preamble from the high priority preamble set.