Invention Grant
US07742443B2 Transmit power management in shared-communications channel networks
失效
在共享通信信道网络中发射功率管理
- Patent Title: Transmit power management in shared-communications channel networks
- Patent Title (中): 在共享通信信道网络中发射功率管理
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Application No.: US10377324Application Date: 2003-02-28
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Publication No.: US07742443B2Publication Date: 2010-06-22
- Inventor: Maarten Menzo Wentink
- Applicant: Maarten Menzo Wentink
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Main IPC: H04B7/185
- IPC: H04B7/185 ; H04L12/413

Abstract:
A method of ameliorating the hidden node problem in wireless local area networks employing power control is disclosed. The illustrative embodiments function in a variety of ways that have a common theme: while the Data Frames are transmitted at lesser potency, at least one of the control frames—Request-to-Send, Clear-to-Send, and Acknowledgement—associated with the Data Frame are sent at a greater potency. This causes at least one of the “loud” control frames to be heard and decoded by all of the potentially contending stations. And because the control frames carry duration information for the virtual carrier sense mechanism, their reception suppresses transmissions by potentially-contending stations that cannot sense the “quiet” Data Frames.
Public/Granted literature
- US20040029590A1 Transmit power management in shared-communications channel networks Public/Granted day:2004-02-12
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