Invention Grant
US09055459B2 Method and system for dual-mode rate control in a wireless communication system
有权
无线通信系统中双模速率控制的方法和系统
- Patent Title: Method and system for dual-mode rate control in a wireless communication system
- Patent Title (中): 无线通信系统中双模速率控制的方法和系统
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Application No.: US13762342Application Date: 2013-02-07
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Publication No.: US09055459B2Publication Date: 2015-06-09
- Inventor: Shu Du , Zhanfeng Jia , Ning Zhang , James S. Cho , Qinghai Gao , Rahul Tandra
- 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: H04W24/02
- IPC: H04W24/02 ; H04B7/04 ; H04L1/00

Abstract:
A method of performing dual-mode rate control for an access point in a wireless communication system includes a single-user mode of operation and a multi-user mode of operation. In the single-user mode, a basic rate for a station is determined based on channel conditions. In the multi-user mode, a rate for a plurality of stations is determined using tracking. The tracking includes performing a sounding for the plurality of stations. An initial multi-user current rate is then set equal to a function of a number of users and the basic rate. A transmission is sent to the plurality of stations using the current rate. A packet error rate (PER) is detected during transmission to the plurality of stations. The current rate is adjusted based on the PER. After rate adjustment, either sounding is triggered or the method returns to sending a transmission using the current rate.
Public/Granted literature
- US20140219111A1 Method And System For Dual-Mode Rate Control In A Wireless Communication System Public/Granted day:2014-08-07
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