Unlock instant, AI-driven research and patent intelligence for your innovation.

Frame structure-aware compression for mimo systems

A decompression and communication system technology, applied in the field of cloud communication and wireless communication, can solve the problem of not being able to use the specific functions of multi-antenna BB signals

Active Publication Date: 2021-09-14
HUAWEI TECH CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] While these compression algorithms can be directly applied in MIMO base stations (BSs) on a per-antenna basis, most of them are designed for single-antenna devices and cannot exploit the specific capabilities of multi-antenna BB signals , these multi-antenna BB signals are correlated not only with time samples but also with space, i.e. the space between the 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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Frame structure-aware compression for mimo systems
  • Frame structure-aware compression for mimo systems
  • Frame structure-aware compression for mimo systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] For ease of illustration, the present invention will be described below based on the MIMO transmitter 200 of the MIMO system 100 . The MIMO transmitter 200 transmits the downlink IQ samples from the BBU passing the compression algorithm block to the RRU passing the decompression algorithm block via a communication link (eg, an FH link). Nevertheless, refer to Figure 4 , the present invention can also be based on the MIMO receiver 300 of the MIMO system 100, the MIMO receiver 300 sends the uplink IQ samples from the compression algorithm module to the BBU. In more detail, in Figure 4In the uplink case, the RRU applies radio frequency (radio frequency, RF) processing and analog-to-digital processing (analog-to-digital processing, ADC) operations to obtain a digitized version of the received signal, while the BBU is responsible for the uplink IQ from the RRU Baseband processing functionality of samples such as frequency domain functionality (e.g. FFT and cyclic prefix...

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

No PUM Login to View More

Abstract

The present invention relates to a multi-antenna apparatus for a MIMO communication system for compressing and decompressing frequency-domain digital signals, wherein the data channel type of each frequency-domain digital sub-signal of the frequency-domain digital signal is determined by radio frame structure mapping (π). The multi-antenna apparatus includes a respective compressor and a respective decompressor associated with each data channel type. For each frequency-domain digital sub-signal of the frequency-domain digital signal, the multi-antenna arrangement compresses the frequency-domain digital sub-signal at the first module using a compressor associated with a data channel type of the frequency-domain digital sub-signal, and for each compression The frequency-domain digital sub-signal of the compressed frequency-domain digital sub-signal is decompressed at a second module in communication with the first module via the FH link using a decompressor associated with the data channel type of the compressed frequency-domain digital sub-signal Signal.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to the field of cloud communication on distributed nodes connected through fronthaul links. Background technique [0002] A massive multi-input multi-output (M-MIMO) system operating over a large bandwidth is regarded as one of the most promising technologies for improving spectral efficiency in next-generation cellular systems. M-MIMO station implementations are most commonly implemented in a distributed architecture, where base station (BS) base band (BB) processing (e.g., beamforming and waveform generation) and radio processing (e.g., radio frequency, RF) processing and analog-to-digital conversion (ADC) or digital-to-analog conversion (DAC) are performed by separate units, for example, a baseband unit (base band unit) on one side , BBU), and the other side is a remote radio unit (remote radio unit, RRU), which is usually far away, also called a radio resource unit (radior...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
CPCH04L27/2626H04W88/085H04B7/0413H04B7/0456H04B7/0626H04W72/0446H04W72/0453H03M7/40H04W72/044
Inventor 伊尼亚基·埃斯特拉·亚格里阿布德拉第夫·扎迪
Owner HUAWEI TECH CO LTD