Invention Grant
US08599777B2 Channel quality indicator design for multiple-user multiple-input and multiple-output in high-speed packet access systems
有权
用于高速数据包接入系统中多用户多输入和多输出的信道质量指标设计
- Patent Title: Channel quality indicator design for multiple-user multiple-input and multiple-output in high-speed packet access systems
- Patent Title (中): 用于高速数据包接入系统中多用户多输入和多输出的信道质量指标设计
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Application No.: US12946702Application Date: 2010-11-15
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Publication No.: US08599777B2Publication Date: 2013-12-03
- Inventor: Pavan Kumar Vitthaladevuni , Haitong Sun , Danlu Zhang , Vinay Chande , Stefan Brueck , Josef J. Blanz
- Applicant: Pavan Kumar Vitthaladevuni , Haitong Sun , Danlu Zhang , Vinay Chande , Stefan Brueck , Josef J. Blanz
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Darren M. Simon
- Main IPC: H04W28/00
- IPC: H04W28/00 ; H04W76/00
Abstract:
A method for providing multiple-user multiple-input and multiple-output in a high-speed packet access system is described. A channel quality indicator is received from a dual-stream-capable wireless communication device requesting a single-stream transmission at a first data rate. The first data rate is adjusted by an adaptive outer loop margin to obtain a second data rate. A data stream is transmitted to the wireless communication device using the second data rate. A positive-acknowledgement/negative-acknowledgement (ACK/NACK) is received from the wireless communication device. The adaptive outer loop margin is adjusted according to the received ACK/NACK.
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