Invention Grant
- Patent Title: Short-range nodes with adaptive preambles for coexistence
- Patent Title (中): 具有自适应前导码的短程节点,用于共存
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Application No.: US13111965Application Date: 2011-05-20
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Publication No.: US09385848B2Publication Date: 2016-07-05
- Inventor: Bo{hacek over (z)}idar Radunovic , Ranveer Chandra , Dinan Srilal Gunawardena
- Applicant: Bo{hacek over (z)}idar Radunovic , Ranveer Chandra , Dinan Srilal Gunawardena
- Applicant Address: US WA Redmond
- Assignee: Microsoft Technology Licensing, LLC
- Current Assignee: Microsoft Technology Licensing, LLC
- Current Assignee Address: US WA Redmond
- Agent Tom Wong; Micky Minhas
- Main IPC: H04L12/43
- IPC: H04L12/43 ; H04L5/00 ; H04L1/00 ; H04L27/26 ; H04W74/08

Abstract:
Wireless protocols in the unlicensed spectrum are developed for different requirements in terms of transmit range and power, which makes it difficult for multiple nodes having disparate transmit ranges to coexist in the same unlicensed spectrum. A short-range wireless node uses adaptive preambles to signal presence to long-range wireless nodes outside of its transmit range. In addition, a long-range wireless node detects an adapter preamble and backs-off transmissions for reservation period dedicated to short-range nodes.
Public/Granted literature
- US20120294232A1 SHORT-RANGE NODES WITH ADAPTIVE PREAMBLES FOR COEXISTENCE Public/Granted day:2012-11-22
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