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Lstm-based analog beam switching method, device, device and medium

A technology of simulating beams and beams, which is applied in the field of communication, can solve problems such as the degradation of control information reception performance and the impact on the accuracy of beam switching on data channels, and achieve the effect of improving accuracy

Active Publication Date: 2022-07-12
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the current beamforming technology, when the control channel is blocked by obstacles in the ultra-cellular network environment, the receiving performance of the control information is severely degraded, which affects the accuracy of beam switching on the data channel in the network.

Method used

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  • Lstm-based analog beam switching method, device, device and medium
  • Lstm-based analog beam switching method, device, device and medium
  • Lstm-based analog beam switching method, device, device and medium

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no. 1 example

[0129] In this embodiment, it should be noted that the embodiment of this application is not only applicable to the communication between a base station and a single user, but can be easily extended to a multi-user scenario. like figure 2 As shown, the model considers the deployment of one CBS and two TBSs in the supercellular network, and the UE moves at high speed in the network. At each moment, the UE communicates with the CBS on the control channel and with a single TBS on the data channel, and the direct path of the control channel is blocked. image 3 The antenna array model used in this application is given. like image 3 As shown in the figure, CBS, TBS and UE are all analog beamforming systems equipped with a single radio frequency link. The deployed antenna array structures are all Uniform Planar Arrays (UPA), and the number of antennas is N respectively. CBS , N TBS and N UE , and each antenna unit is connected to the same RF link through a phase shifter. For...

no. 2 example

[0142] In this embodiment, Figure 4 The overall flow chart of the LSTM-based analog beam switching method provided in the embodiment of the present application is mainly divided into three stages: a training data generation stage, a network training stage, and a beam prediction stage.

[0143] Figure 5 The flow chart of the first training sample set and the second training sample set generation stage provided by the embodiment of the present application. First, the training data is obtained by the beam scanning method. The UE periodically sends SRS in all beam directions, and the CBS traverses the codebook to receive and calculate the RSRP of all beam pairs, and then obtain the sequence numbers and RSRPs of the optimal beam pair on the CBS side and the UE side. All TBSs also traverse the codebook to receive the SRS signals sent by the UE, and calculate the RSRP of all beam pairs, and then report the sequence numbers and RSRPs of the optimal beam pair on the TBS side and th...

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Abstract

Embodiments of the present application provide an LSTM-based analog beam switching method, apparatus, device, and medium, the method includes: acquiring first information of the optimal beam pair that communicated with the terminal UE within a specified time period in the past, and the service base station TBS and the UE The second information of the optimal beam pair for communication; input the first information and the second information into the LSTM model of the long short-term memory network, and obtain the optimal TBS and the optimal beam pair for communication with the UE within the specified time period in the future. The beam sequence number of the side and the UE side; according to the beam sequence number of the best TBS and its best beam pair on the TBS side and the UE side, the TBS and the UE are controlled to perform beam switching. Using the good memory ability of the LSTM network model for time series, according to the beam information in the past period, predict the best TBS for switching at the current moment and the best beam pair for communication with the UE, effectively improving the beam switching of mobile terminals in complex channel environments accuracy.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular, to an LSTM-based analog beam switching method, apparatus, device, and medium. Background technique [0002] In recent years, mobile Internet services have developed rapidly, and network traffic has shown an explosive growth trend. Beamforming technology has become a research hotspot at this stage and a potential technology in the fifth generation of new wireless 5G (5th generation). [0003] Beamforming technology means that by changing the radiation phase and angle of the antenna unit, a series of directional beams are formed in space, and the signal energy is concentrated on the beam to accurately point to the user, thereby maximizing the propagation distance in this direction, and Provides beamforming gain. [0004] However, in the current beamforming technology, when the control channel is blocked by obstacles in the supercellular network environment, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04B17/391H04W24/06
CPCH04B7/0617H04B7/0602H04B17/391H04W24/06Y02D30/70
Inventor 何兴文唐晓刚刘丹谱张志龙郭克锋
Owner BEIJING UNIV OF POSTS & TELECOMM