Invention Grant
- Patent Title: Transmit diversity using low code rate spatial multiplexing
- Patent Title (中): 使用低码率空间复用的发射分集
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Application No.: US13709841Application Date: 2012-12-10
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Publication No.: US08867647B2Publication Date: 2014-10-21
- Inventor: Robert Mark Harrison , Hua Xu , Andrew Mark Earnshaw , Zhijun Cai
- Applicant: Research In Motion Limited
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Conley Rose, P.C.
- Agent J. Robert Brown, Jr.
- Main IPC: H04B7/02
- IPC: H04B7/02 ; H04L5/00 ; H04J11/00 ; H04J13/00 ; H04L1/06 ; H04L1/00 ; H04B7/06

Abstract:
A system is provided for transmitting a low code rate spatially multiplexed channel on multiple antennas. The system includes a transmitter and a processor. The processor is configured such that the processor encodes a block of information bits to form channel coded bits, wherein the ratio of the number of channel coded bits to the number of information bits is greater than one; and the processor maps the channel coded bits to modulation symbols, and each channel coded bit is mapped once to a modulation symbol. The transmitter is configured to transmit a first portion of the modulation symbols using a spreading sequence on a first antenna of the multiple antennas and to transmit a second portion of the modulation symbols using the spreading sequence on a second antenna of the multiple antennas.
Public/Granted literature
- US20130094524A1 Transmit Diversity Using Low Code Rate Spatial Multiplexing Public/Granted day:2013-04-18
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