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A method, device and equipment for switching between uplink MIMO modes

An inter-mode, mode technology, applied in the direction of space transmit diversity, link quality-based transmission modification, transmission system, etc., can solve the problems of limited terminals and lack of a relatively complete solution.

Active Publication Date: 2017-10-20
海安嘉臣环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are already many handover schemes for the downlink MIMO system, but they are limited by the capabilities of the terminal, and there is no relatively perfect scheme for the handover of the uplink MIMO system

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  • A method, device and equipment for switching between uplink MIMO modes
  • A method, device and equipment for switching between uplink MIMO modes
  • A method, device and equipment for switching between uplink MIMO modes

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Embodiment Construction

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] figure 1 A schematic diagram of a process of switching between uplink MIMO modes provided by the present invention, the switching process includes the following steps:

[0027] S101: When the base station acquires that the transmission mode adopted by the current transmission system is the MIMO mode, perform channel estimation on the received signal, and determine spatial correlation coefficients of two uplink MIMO streams.

[0028] Wherein, the base station acquires the transmission mode adopted by the current transmission system by directly re...

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Abstract

The invention discloses a method, device and equipment for switching between uplink MIMO modes. In the method, when the base station acquires that the transmission mode adopted by the current transmission system is MIMO mode, it determines the spatial correlation coefficient of two uplink MIMO streams, and obtains each The received signal strength indicator of each stream in non-MIMO mode and the packet error rate of each stream; the smaller value of the received signal strength indicator of the two streams and the larger value of the packet error rate are selected, according to the space of the two streams The correlation coefficient, the selected received signal strength indicator and the packet error rate determine the corresponding uplink MIMO switching mode. In the present invention, the corresponding uplink MIMO switching mode is determined by comparing the spatial correlation coefficient of the two streams, the selected smaller value of the received signal strength indicator, and the larger value of the packet error rate with the corresponding threshold, thereby realizing The mode switching of the uplink MIMO is realized, so better transmission performance is obtained.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to an uplink multiple-input multiple-output (Multiple-Input Multiple-Out-put, MIMO) mode switching method, device and equipment. Background technique [0002] The MIMO technology is a key technology of the physical layer in the Orthogonal Frequency Division Multiple Access (OFDMA) technology. MIMO technology refers to that in a wireless communication system, the signal is spatially encoded and then transmitted through multiple antennas. After arriving at the receiving end through a wireless channel, it is received through multiple antennas at the receiving end, and then uses wireless space decoding to restore the original signal. . [0003] The application of MIMO technology in wireless communication systems includes multiple implementation methods. Taking the WiMax system as an example, the implementation methods include: transmit diversity, spatial multiple...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413H04B7/08H04B7/06H04L25/02H04B17/00
CPCH04L1/0001H04B7/0689H04B17/318
Inventor 郭军平李静
Owner 海安嘉臣环境科技有限公司