Invention Grant
US09258041B2 Methods and systems for combined cyclic delay diversity and precoding of radio signals
有权
用于组合循环延迟分集和无线电信号预编码的方法和系统
- Patent Title: Methods and systems for combined cyclic delay diversity and precoding of radio signals
- Patent Title (中): 用于组合循环延迟分集和无线电信号预编码的方法和系统
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Application No.: US14709805Application Date: 2015-05-12
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Publication No.: US09258041B2Publication Date: 2016-02-09
- Inventor: George Jöngren , Bo Göransson
- Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
- Applicant Address: SE Stockholm
- Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
- Current Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
- Current Assignee Address: SE Stockholm
- Agency: Patent Portfolio Builders PLLC
- Priority: SE0700367 20070213
- Main IPC: H04B7/04
- IPC: H04B7/04 ; H04B7/06 ; H04L25/03 ; H04L5/00 ; H04L27/26
Abstract:
In a transmitter or transceiver, signals can be precoded by multiplying symbol vectors with various matrices. For example, symbol vectors can be multiplied with a first column subset of unitary matrix which spreads symbols in the symbol vectors across virtual transmit antennas, a second diagonal matrix which changes a phase of the virtual transmit antennas, and a third precoding matrix which distributes the transmission across the transmit antennas.
Public/Granted literature
- US20150244435A1 METHODS AND SYSTEMS FOR COMBINED CYCLIC DELAY DIVERSITY AND PRECODING OF RADIO SIGNALS Public/Granted day:2015-08-27
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