Invention Grant
- Patent Title: Uplink open-loop spatial multiplexing in wireless communications
- Patent Title (中): 无线通信中的上行开环空间复用
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Application No.: US12697619Application Date: 2010-02-01
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Publication No.: US08687731B2Publication Date: 2014-04-01
- Inventor: Peter Gaal , Xiliang Luo , Wanshi Chen , Juan Montojo , Xiaoxia Zhang
- Applicant: Peter Gaal , Xiliang Luo , Wanshi Chen , Juan Montojo , Xiaoxia Zhang
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Liem T. Do
- Main IPC: H04L27/00
- IPC: H04L27/00

Abstract:
Systems and methodologies are described that facilitate cycling through precoders for transmitting wireless network communications in a time domain. The precoders can be cycled according to a precoder sequence for each data symbol transmission. When the last precoder is selected the cycle can begin again, a new precoder sequence can be received or defined, and/or the like. A precoder sequence related to a subset of precoders present in a wireless device can be defined sequentially, cyclically shifted according to an identifier or one or more communications parameters, randomly, pseudo-randomly according to an identifier or one or more communications parameters, and/or the like. In addition, the precoder sequence can be utilized to select a precoder for one or more retransmissions. Such cycling of precoders can increase transmit diversity.
Public/Granted literature
- US20100195759A1 UPLINK OPEN-LOOP SPATIAL MULTIPLEXING IN WIRELESS COMMUNICATIONS Public/Granted day:2010-08-05
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