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

Beam information feedback method and a device

A technology of beam information and beam, which is applied in wireless communication, electrical components, etc., can solve the problems of increasing multiplexing gain and unproposed solutions, so as to achieve the effect of improving multiplexing gain, improving communication quality, and avoiding beam interference

Active Publication Date: 2018-08-14
ZTE CORP
View PDF6 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when it is necessary to increase the multiplexing gain of transmission, it is necessary to increase the number of transmission layers to improve the multiplexing gain, so that multiple beam feedback is required to support the transmission of multiple layers. The ideal way is to use multiple antenna panels to It supports the transmission and feedback of multi-layer beams. In the existing technology, different panels independently select beams, and the mutual influence between beams on different layers and different panels is not considered. Beams between different layers may cause relatively large Large interlayer interference, which is not good for the purpose of increasing multiplexing gain
[0006] For the above problems, no effective solution has been proposed in the prior art

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
  • Beam information feedback method and a device
  • Beam information feedback method and a device
  • Beam information feedback method and a device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] This embodiment provides a specific implementation manner of measuring and reporting beam information.

[0127] First, the base station configures reference signal resources for the terminal to perform beam information measurement. Specifically, the reference signal resources configured by the base station for the terminal include reference signal time domain resources, reference signal frequency domain resources, and reference signal port resources. Each reference signal resource loads a beam, and sends out a beam-formed reference signal (BFed RS). Since the analog beam can only act on the entire bandwidth, the base station needs multiple antenna panels to realize the multiplexing of the analog beam in the frequency domain, such as figure 1 The base station shown is an example of two antenna panels installed. Such as figure 1 shown in figure 1 , the base station emits 4 beams on antenna panel 1 and outputs 4 beams on antenna panel 2. The beams of antenna panel 1 are...

Embodiment 2

[0144] This embodiment provides a specific implementation manner of beam information measurement.

[0145] In a beam-based wireless communication system, multi-layer data stream transmission can be realized by finding multiple transmit and receive beam pairs with better quality. Generally speaking, the terminal enables the base station to acquire better beam information by feeding back reference signal resource or port information. When the base station uses the beam information fed back by the terminal to transmit multi-layer data streams, there may be a certain amount of inter-layer interference between the beams, which affects the throughput performance of multi-layer transmission. One of the solutions to this problem is to use the multi-criteria beam feedback method given in Embodiment 1, and this embodiment provides another solution.

[0146] Generally speaking, the acquisition of beam information is divided into multiple steps. First, the base station configures referen...

Embodiment 3

[0156] This embodiment provides a specific implementation manner of beam information acquisition. In a 5G wireless communication system, in order to obtain a relatively stable link, at least two antenna panels with different orientations will become a common antenna configuration for terminals. A back-to-back configuration of terminal panels such as Figure 4 shown.

[0157] Such as Figure 4As shown, the terminal is equipped with two antenna panels. The antenna orientations of panel 1 and panel 2 are quite different, for example, the difference is 180 degrees, that is, the receiving beam directions that can be used by the two antenna panels are quite different, which can be regarded as two relative comparisons. Independent receive beams. Therefore, during beam training, beam training can be performed independently for the two receiving panels. Therefore, two beam management processes can be formed for the two terminal antenna panels, and each beam management process can pe...

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 embodiment of the invention discloses a beam information feedback method and a device. The method comprises the following steps that: a terminal measures a reference signal to generate a measurement result; and based on the measurement result, first type beam information is selected according to a first criterion, second type beam information is selected according to a second criterion, and the first type beam information and the second type beam information are reported to a network side.

Description

technical field [0001] The invention relates to a beam information feedback method and device. Background technique [0002] Ultra-wide bandwidth high-frequency communication, that is, millimeter wave communication, has become an important direction for the development of mobile communication in the future, attracting the attention of academic and industrial circles around the world. In particular, the advantages of mmWave are becoming more and more attractive when spectrum resources are increasingly congested and physical networks are heavily accessed. Many standard organizations, such as the Institute of Electrical and Electronics Engineers (IEEE, Institute of Electrical and Electronics Engineers) and the 3rd Generation Partnership Project (3GPP, the 3rd Generation Partnership Project), have begun to carry out corresponding standardization work, for example, in the 3GPP standard Group, high-frequency communication will become an important innovation point of 5G New Radio ...

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 Applications(China)
IPC IPC(8): H04W24/10H04W72/04H04W72/08H04W72/54
CPCH04W24/10H04W72/046H04W72/21H04W72/541H04W72/04H04W72/54
Inventor 吴昊高波张楠陈艺戬鲁照华李儒岳
Owner ZTE CORP