Automatic retransfer request scheme based on the detection and merging joint optimization of the MIMO system
A technology of automatic request retransmission and joint optimization, applied in transmission systems, digital transmission systems, diversity/multi-antenna systems, etc., can solve the problem of detecting antennas without considering the serial interference cancellation detection scheme, and achieve the effect of improving throughput
Inactive Publication Date: 2007-09-12
SHENZHEN TINNO WIRELESS TECH
View PDF0 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In 2003, E.N. Onggosanusi proposed two ways of ARQ transmission and combination in MIMO system at the International Conference on Communication of the Institute of Electrical and Electronics Engineers, which are linear detection algorithms of pre-combination and post-combination, without considering the use of serial interference Deletion detection scheme and how to use multiple retransmission channel information to optimize the order of detecting antennas
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] The present invention will be described in detail below through the accompanying drawings and examples.
[0031] Fig. 1 shows a basic functional block diagram of a MIMO-ARQ system. At the transmitting end, the data bits are firstly coded by CRC at the transmitting end, and then modulated and converted into parallel signals to form multiple parallel signals, which are transmitted from multiple different antennas at the same time; The signal and noise are superimposed and received by multiple antennas at the same time. In the MIMO detection and combiner, the channel information of this transmission obtained by the channel estimator and the channel information corresponding to the previous retransmissions stored in the memory are used to estimate layer by layer. The soft information value of the original data is obtained, and the symbol information is sent through the branching combination decision. After the data symbol is demodulated, the data bit information is obtaine...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a mechanism use detection and optimization of the joint merger to request in MIMOR main features including: base on zero-based serial interference forced (ZF-SIC) for checking, the receiver makes use of the being transmission channel information to get the right antenna order, and then check all the information . This invention combines multiple re-channel by weighted combined methodto determine the sequence of detection antenna, making detection sequence superior to the traditional MIMO detection, and reduce the force to delete zero serial interference in the possibility of transmission errors; it weights and checks the soft information which are several times transmissed so it improves the through put of the system.
Description
technical field [0001] The invention relates to a detection scheme of a multiple-input multiple-output (MIMO) system and an automatic retransmission request (ARQ) mechanism of a wireless communication system. Background technique [0002] In order to meet the growing requirements of high-speed data and multimedia services in the future, the next-generation mobile communication system needs to provide higher data transmission rates, more stable performance, and be able to meet the transmission needs of various services. [0003] The MIMO system is a wireless communication system that uses multiple transmitting antennas and multiple receiving antennas for data transmission. It can provide a very large channel capacity. Under ideal propagation conditions, its spectrum utilization rate has a linear relationship with the number of antennas. Since the MIMO system has a very high spectrum utilization rate, it is considered to be one of the main physical layer technologies of the fu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/00H04B1/707H04B7/02
Inventor 谢刚熊芳刘元安张鹏杨爱敏
Owner SHENZHEN TINNO WIRELESS TECH