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

Filter optimization method, filter configuration method, related equipment and system

An optimization method and filter technology, applied in the field of communication, can solve problems such as out-of-band power leakage

Active Publication Date: 2020-12-25
HUAWEI TECH CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the CP-OFDM system fixedly uses a rectangular window for windowing processing, which has obvious defects in suppressing indicators such as Adjacent Channel Leakage Ratio (ACLR) and out-of-band power leakage (Out Of Band Emission, OOBE). , it is necessary to reserve a certain guard band to suppress the interference between adjacent time-frequency resource blocks caused by different services or channel shapes

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
  • Filter optimization method, filter configuration method, related equipment and system
  • Filter optimization method, filter configuration method, related equipment and system
  • Filter optimization method, filter configuration method, related equipment and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0137] The terms used in the embodiments of the present invention are only used to explain specific examples of the present invention, and are not intended to limit the present invention.

[0138] first, combine Figures 1A-1F Several possible application scenarios involved in the embodiments of the present invention are introduced. details as follows:

[0139] Such as Figure 1A As shown, in the enhanced mobile broadband (Enhanced Mobile Broadband, eMBB) service application scenario, in order to achieve more flexible resource allocation, an extended subband-level multicast / multicast single frequency network (Multimedia Broadcast multicast service Single Frequency Network, MBSFN). Since multicast / multicast requires signal coverage enhancement, MBSFN and single-cell transmission channels use different OFDMNumerology (that is, a set of numerical settings consisting of OFDM CP length and subcarrier width) for data transmission. For example, MBSFN in the existing system adopts ...

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

Disclosed are a filter optimisation method, a filter configuration method, and a related device and system. The filter optimisation method comprises: according to a target adjacent channel leakage ratio requirement, determining a transmitting filter coefficient g(o) RX(t) satisfying the target adjacent channel leakage ratio requirement; according to a set channel statistic property H and g(o) RX(t) satisfying the target adjacent channel leakage ratio requirement, analysing a preferred receiving filter coefficient γ(o) RX(t) maximising a signal-to-interference-plus-noise ratio SINRRX of a receiving end; using a known window function to approximate the preferred receiving filter coefficient γ(o) RX(t) to obtain a receiving filter coefficient γ(1) RX(t) similar to the preferred receiving filter coefficient γ(o) RX(t), wherein the receiving filter coefficient γ(1) RX(t) is used for configuring a filter at the receiving end. The solution can improve a signal-to-interface-plus-noise ratio, and improve the communication performance.

Description

technical field [0001] The present invention relates to the communication field, in particular to a filter optimization method, a filter configuration method, related equipment and a system. Background technique [0002] An Orthogonal Frequency Division Multiplexing (OFDM) system is the most widely used communication system in recent years, for example, a Long Term Evolution (Long Term Evolution, LTE) system. [0003] Compared with the LTE communication system, the next-generation communication system not only needs to be improved in performance, but also needs to support new service types through the design of the new air interface. That is, on the basis of traditional Mobile Broadband (MBB) services, it is also necessary to support Machine-To-Machine (M2M), Man-Compute-Communication (M-C-C), and other rich and diverse new Increased services, such as Ultra-reliable and Low Latency Communications (uMTC) and Massive Machine Type Communications (MMTC). New air interface tech...

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
CPCH04L27/2691H04L25/03
Inventor 赵兆王奇龙毅郭志恒程型清龚希陶麦塔·舒尔曼
Owner HUAWEI TECH CO LTD