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. 05, 2015
Filed:
Apr. 27, 2012
Jianfeng Weng, Kanata, CA;
Shiguang Guo, Kanata, CA;
Shiwei Gao, Nepean, CA;
Mo-han Fong, Ottawa, CA;
Youn Hyoung Heo, Hwasung, KR;
Andrew Mark Earnshaw, Kanata, CA;
Jianfeng Weng, Kanata, CA;
Shiguang Guo, Kanata, CA;
Shiwei Gao, Nepean, CA;
Mo-Han Fong, Ottawa, CA;
Youn Hyoung Heo, Hwasung, KR;
Andrew Mark Earnshaw, Kanata, CA;
BlackBerry Limited, Waterloo, CA (US);
Abstract
Methods and systems at a user equipment, low power access node and first access node operating in a wireless network having a plurality of access nodes comprising a first access node and at least one low power access node having lower transmit power than the first access node, wherein the user equipment receives stronger downlink signals from the first access node than from the at least one low power access node, the method at the user equipment determining, by the user equipment, whether a low power access node is better for uplink data transmission than the first access node; and if the low power access node is better for uplink data transmission, sending from the user equipment to the low power access node, a random access preamble directed to the first access node.