Uplink channel tracking method and device

A channel and channel matrix technology, applied in the field of uplink channel tracking methods and devices, can solve problems such as interference, and achieve the effect of eliminating interference

Active Publication Date: 2019-11-05
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the existing research on channel matrix tracking only considers the channel matrix tracking of a single user, but in practice there may be multiple user equipment (UE) in a cell, and there will be multiple UEs when the distance between multiple UEs is close interference

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  • Uplink channel tracking method and device
  • Uplink channel tracking method and device

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024]It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used for example, illustration or description. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present invention shall not be construed as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "such as" is i...

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Abstract

The embodiment of the invention provides an uplink channel tracking method and device, relates to the field of communication, and is used for tracking channels of beam domain channel matrixes of a plurality of pieces of UE in a single cell and eliminating channel interference among the plurality of pieces of UE. The method comprises the following steps: calculating beam domain channel matrix estimation values of uplink channels of a current time block and a preset number of time blocks before the current time block according to an initial horizontal angle and an initial pitch angle of a received signal; calculating a beam domain channel matrix of the uplink channel of the current time block according to the calculated estimated value of the beam domain channel matrix of the uplink channeland a forward prediction algorithm of an LSTM unit; and updating the beam domain channel matrix for the UE with interference according to the beam index of the optimal beam of the beam domain channelmatrix and a preset beam selection vector. The method and device are used for channel tracking.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for tracking an uplink channel. Background technique [0002] With the rapid development of the information society, the demand for various new mobile services continues to grow, and end users have higher and higher requirements for the bandwidth and transmission rate of wireless mobile communication. The 5th generation (5G) mobile communication system will get rapid development. Signal frequency bands used by current mobile communication systems are mainly concentrated below 6 GHz, and signals in these frequency bands have good propagation performance. However, the spectrum resources in frequency bands below 6 GHz are currently tight, and the 5G mobile communication system needs to develop new spectrum resources for signal transmission. The signal spectrum resources in the millimeter wave band are abundant, which can not only alleviate the pressure on spec...

Claims

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Application Information

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IPC IPC(8): H04L25/02H04B7/0413H04B7/0456
CPCH04B7/0413H04B7/0456H04L25/0242
Inventor 李培冯毅刘海艳张天魁
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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