Invention Grant
- Patent Title: Clear channel assessment (CCA) threshold adaptation method
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Application No.: US15021634Application Date: 2014-09-12
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Publication No.: US09807699B2Publication Date: 2017-10-31
- Inventor: Oghenekome Oteri , Pengfei Xia , Xiaofei Wang , Hanqing Lou , Monisha Ghosh , Robert L. Olesen , Nirav B. Shah , Frank La Sita
- Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
- Applicant Address: US DE Wilmington
- Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Volpe and Koenig, P.C.
- International Application: PCT/US2014/055445 WO 20140912
- International Announcement: WO2015/038930 WO 20150319
- Main IPC: H04W52/24
- IPC: H04W52/24 ; H04W74/08 ; H04W84/12 ; H04W52/12

Abstract:
Methods and apparatuses are described herein for adapting clear channel assessment (CCA) thresholds with or without Transmit Power Control (TPC) are disclosed. An IEEE 802.11 station (STA) may dynamically calculate a STA specific transmit power control (TPC) value and a STA specific clear channel assessment (CCA) value based on a target TPC parameter and a target CCA parameter. The target TPC parameter and the target CCA parameter may be received from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with the BSS. The target TPC parameter and the target CCA parameter also may be related. The STA may then determine whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) basic service set (BSS) is occupied or idle based on the STA specific CCA value.
Public/Granted literature
- US20160227489A1 CLEAR CHANNEL ASSESSMENT (CCA) THRESHOLD ADAPTATION METHOD Public/Granted day:2016-08-04
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