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

A beamforming method, method and device for determining an initial beam index set

A beamforming method and beam indexing technology, applied in the directions of space transmit diversity, diversity/multi-antenna systems, electrical components, etc., can solve problems such as large feedback amount and inaccuracy, improve accuracy, reduce feedback amount, The effect of improving performance

Active Publication Date: 2019-03-12
ZTE CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods, on the one hand, limit the number of beams for sending data, such as 1 or 2; Larger feedback, such as the method based on PMI and RI feedback in R9, requires feedback of PMI and RI

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
  • A beamforming method, method and device for determining an initial beam index set
  • A beamforming method, method and device for determining an initial beam index set
  • A beamforming method, method and device for determining an initial beam index set

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0107] In this embodiment, the communication nodes of the first type are assumed to be base stations, and the communication nodes of the second type are mobile terminals. Configure N on the base station beam Horn antennas, for example, N beam It can be a positive integer such as 12, 15, 18, 24, etc. Each horn antenna can send beams in a different direction. At the same time, the base station can select one or more of the horn antennas to send data for the same terminal. The data sent by the horn is directional and is a beam. . The base station and the terminal complete the horn antenna selection for sending data through the following steps, that is, beam selection.

[0108] (1) The base station is at N beam In time slots, a horn antenna is sequentially selected to send signals, and each moment is bound to a horn antenna index.

[0109] (2) Terminal selection in N beam Receive the signal sent by the base station in a time slot, and calculate the channel quality informatio...

specific Embodiment 2

[0127] In this embodiment, the communication nodes of the first type are assumed to be base stations, and the communication nodes of the second type are mobile terminals. Each sector of the base station is equipped with Nt linear array antennas, and the polarization direction of each antenna is the same, such as a positive 45° polarized antenna or a negative 45° polarized antenna or a horizontally polarized antenna or a vertically polarized antenna. The antenna is arranged as Figure 2a shown. The Nt antennas can pass through N Beam A weight vector virtualizes it into N Beam beams in different directions. Among them, its weight vector is W i ,W i for N t A column vector with norm 1 of ×1, i=1,...,N Beam . A simple example is that it is a DFT vector, i.e. θ i is the pointing direction of the beam. The base station and the terminal complete beam selection for sending data through the following steps.

[0128] (1) The base station is at N Beam In time slots, a beam w...

specific Embodiment 3

[0153] In this embodiment, the communication nodes of the first type are assumed to be base stations, and the communication nodes of the second type are mobile terminals. Each sector of the base station is equipped with Nt linear dual-polarized array antennas, and each antenna can be a positive 45° polarized antenna or a negative 45° polarized antenna or a horizontally polarized antenna or a vertically polarized antenna. The antennas are arranged as Figure 2b shown. The Nt antennas can pass through N Beam A weight vector virtualizes it into N Beam beams in different directions. Among them, the weight vector is W i ,W i for N t A column vector with norm 1 of ×1, i=1,...,N Beam . A simple example is, antenna subarrays in the same polarization direction, which is the DFT vector, namely θ i is the directing direction of the antenna sub-array beam in the polarization direction, then the weight vector of the whole antenna array can be expressed as The base station and t...

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

Provided are a beam forming method, and a method and device for determining an initial beam index set, which relate to the field of wireless communications. The beam forming method is applied to a system comprising at least one second-type communication node, and the beam forming method comprises: sending an original beam; receiving an initial beam index set determined by the second-type communication node according to the original beam; and according to the initial beam index set, determining a target beam used for sending data. A beam is selected by the cooperation between a first-type communication node and a second-type communication node, the accuracy of selecting a beam is improved while the feedback amount of the beam is reduced, the performance of a wireless communication system is improved, and the coverage range of the system is increased. Also disclosed at the same time are two computer storage media.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a beam forming method, a method and a device for determining an initial beam index set. Background technique [0002] Beamforming is a signal processing technology. For horn antennas, as shown in Figure 1, each horn antenna forms a beam in a fixed direction, and multiple beams in multiple directions are formed by multiple horn antennas to meet the coverage requirements. When sending data, select the horn antenna in the direction to send the signal to send, so as to achieve the purpose of directional sending data. For array antenna systems such as Figure 2a , 2b The linear array shown can also be Figure 2c , 2d The planar antenna array shown. Beamforming enables data to be sent in a specified direction by weighting the antenna elements. Directional data transmission through beamforming enables energy to be concentrated in a useful direction, increasing the sign...

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): H04B7/0456H04B7/06
CPCH04B7/0469
Inventor 肖华华陈艺戬鲁照华
Owner ZTE CORP