Invention Grant
- Patent Title: Dynamic rate control in WiFi systems
- Patent Title (中): WiFi系统中的动态速率控制
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Application No.: US13921860Application Date: 2013-06-19
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Publication No.: US09148816B2Publication Date: 2015-09-29
- Inventor: Shu Du , Zhanfeng Jia , Chin-Hung Chen , Ning Zhang
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Holland & Hart LLP
- Main IPC: H04W28/02
- IPC: H04W28/02 ; H04L1/00 ; H04L5/00

Abstract:
A wireless device is configured to switch data rates to account for temporary channel conditions or device configuration errors. Pre-selected data rates, more likely to achieve maximum goodput, are stored in a data rate table. The data rate table contains candidate data rates for each pre-selected data rate in the data rate table. When probe transmissions using the preselected data rates fail, dynamic rate probing is utilized to determine a possible cause and extent of the problem. The dynamic rate probing scheme transmits probe transmissions using the candidate data rates and tracks success or failure of these probe transmissions. An analysis of the probe transmissions is used to indicate a possible cause and/or extent of the problematic condition and to determine whether there is a need to reconfigure the data rates in the data rate table.
Public/Granted literature
- US20140269655A1 Dynamic Rate Control In WiFi Systems Public/Granted day:2014-09-18
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