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A precoding method, device and system

A pre-coding method and pre-coding technology, applied in the field of pre-coding, can solve the problems of time-consuming power consumption, time-frequency resource consumption, etc., and achieve the effects of reducing power consumption, reducing occupation, and shortening scanning detection time

Active Publication Date: 2018-10-26
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a precoding method, device, and system to solve the problems in the prior art that the terminal scanning detection process consumes time and power, and consumes many orthogonal time-frequency resources

Method used

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  • A precoding method, device and system
  • A precoding method, device and system
  • A precoding method, device and system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Embodiment 1 of the present invention provides a precoding method, such as figure 1 As shown, it mainly includes the following steps:

[0073] Step 101: The macro base station receives the first location information reported by the micro base station, where the first location information is the location information of the terminal relative to the micro base station.

[0074] Specifically, the manner in which the micro base station determines the first location information may be:

[0075] First, the micro base station transmits beams omnidirectionally.

[0076] Then, after scanning and detecting the beam delivered by the micro base station, the terminal feeds back the detected beam sequence number of a beam to the micro base station.

[0077] Wherein, the beam corresponding to the beam sequence number fed back by the terminal to the micro base station may be the beam with the largest signal-to-noise ratio detected by the terminal, or the beam with the highest received...

Embodiment 2

[0099] like image 3 As shown, it is a schematic structural diagram of a macro base station in Embodiment 2 of the present invention, which mainly includes:

[0100] The receiving unit 201 is configured to receive first position information reported by the micro base station, where the first position information is position information of a terminal relative to the micro base station.

[0101] The position information determining unit 202 is configured to determine third position information of the terminal relative to the macro base station according to the second position information of the micro base station relative to the macro base station and the first position information.

[0102] The beam sequence number determination unit 203 is configured to determine at least one beam sequence number corresponding to the third location information according to the correspondence between the location information and the beam sequence numbers of the beams issued by the macro base st...

Embodiment 3

[0107] like Figure 4 As shown, it is a schematic structural diagram of a micro base station in Embodiment 3 of the present invention, which mainly includes:

[0108] The location information determining unit 301 is configured to determine first location information of the terminal relative to the micro base station.

[0109] The sending unit 302 is configured to report the first location information to the macro base station.

[0110] Preferably, the micro base station may further include: a beam sending unit 303, configured to send beams to terminals omnidirectionally.

[0111] The receiving unit 304 is configured to receive the beam sequence number of a beam fed back by the terminal after the terminal scans and detects the beam issued by the micro base station, and sends the beam sequence number to the position information determination unit 301 .

[0112] The location information determining unit 301 is specifically configured to use the location information correspondi...

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Abstract

The invention discloses a pre-coding method, an apparatus and a system. The invention mainly includes: determining, by a micro base station, position information of a terminal relative to the micro base station, and reporting the position information to a macro base station; determining, by the macro base station, position information of the terminal relative to the macro base station in accordance with the position information of the terminal relative to the micro base station, and pre-stored position information of the micro base station relative to the macro base station; and after determining a beam serial number corresponding to the position information, issuing a beam corresponding to the beam serial number to the terminal, such that the terminal needs only to detect the beam issued by the macro base station with respect to the terminal when the terminal scans and detects the beam, and thus the time of scanning and detecting can be shortened, and power consumption can be reduced. Meanwhile, if the beams issued by the macro base station with respect to arbitrary two terminals do not overlap, there is no need of allocating orthogonal resources to the two terminals, and there is no interference even if multiplexing resources are allocated, and thus occupancy of resources can be reduced efficiently.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a precoding method, device and system. Background technique [0002] When the base station performs precoding operations, it will first send beam signals to the terminals within the coverage area, and the terminals will perform scanning detection on the beam signals, determine the beam signal with the highest received power from the detected beam signals, and send the determined The sequence number of the beam signal is fed back to the base station, so that the base station can determine the precoding method corresponding to the sequence number fed back by the terminal according to the correspondence between the pre-stored sequence number and the precoding method, and then use the determined precoding method to perform precoding operate. [0003] When the base station sends the beam signal to the terminal, it uses the omnidirectional method, that is, the large-sca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W16/02H04B7/0456H04L1/00
CPCH04B7/0456Y02D30/70
Inventor 王化磊潘振岗
Owner CHINA MOBILE COMM GRP CO LTD