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:
Nov. 14, 2017
Filed:
Dec. 16, 2014
Electronics and Telecommunications Research Institute, Daejeon-si, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Abstract
A method of retransmitting a packet for low-power wireless sensor communications of a coordinator in a sensor network is provided. The method includes receiving packets from a plurality of sensor devices during a plurality of guaranteed time slots (GTSs) of a Contention Free Period (CFP) which are allocated to the respective sensor devices; checking whether there is an error in each of the received packets; generating one GTS Bulk ACK frame that contains pieces of ACK information to be transmitted to the respective sensor devices, according to the error check results; and transmitting the generated GTS Bulk ACK frame to the plurality of sensor devices.
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