Invention Grant
US08730989B2 Method and apparatus for closed loop transmit diversity transmission initial access
有权
用于闭环发射分集传输初始接入的方法和装置
- Patent Title: Method and apparatus for closed loop transmit diversity transmission initial access
- Patent Title (中): 用于闭环发射分集传输初始接入的方法和装置
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Application No.: US13370563Application Date: 2012-02-10
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Publication No.: US08730989B2Publication Date: 2014-05-20
- Inventor: Benoit Pelletier , Hong O. Zhang , Diana Pani
- Applicant: Benoit Pelletier , Hong O. Zhang , Diana Pani
- Applicant Address: US DE Wilmington
- Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee Address: US DE Wilmington
- Agent Theodore Naccarella
- Main IPC: H04B7/216
- IPC: H04B7/216
Abstract:
Uplink precoding in closed loop transmit diversity (CLTD). The methods and apparatus relate to precoder operations during an initial stage using default precoder tap weights, and a second stage wherein precoder weights obtained from a precoder control indicator channel information are used, provided the signal quality of the precoder control indicator channel is sufficiently reliable. The methods and apparatus also relate to procedures for responding to detection of an unreliable pre-coding control information (PCI) carried in a downlink feedback signal.
Public/Granted literature
- US20120207045A1 METHOD AND APPARATUS FOR CLOSED LOOP TRANSMIT DIVERSITY TRANSMISSION INITIAL ACCESS Public/Granted day:2012-08-16
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